| Patent application number | Description | Published |
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| 20080197785 | Display apparatus and electronic apparatus - A display apparatus includes a pixel unit in which pixels are arranged in a matrix pattern; and a driving circuit for driving the pixel unit. Each of the pixels includes a signal level holding capacitor; a first transistor that is turned on/off in response to a writing signal and via which one end of the signal level holding capacitor is connected to a signal line; a second transistor having one end of the signal level holding capacitor connected to a gate thereof and the other end of the signal level holding capacitor connected to a source thereof; a current-driven self-light-emitting element whose cathode is held at a cathode potential and whose anode is connected to the source of the second transistor; a third transistor that is turned on/off in response to a driving pulse signal; and a fourth transistor that is turned on/off in response to a control signal. | 08-21-2008 |
| 20080198103 | Display device and driving method thereof - Disclosed herein is a display device including: a pixel array unit having pixel circuits arranged in a form of a matrix; and a control unit having a writing scanning unit for outputting, to the sampling transistor, a writing scanning pulse. The control unit effects control to supply a control input terminal of the drive transistor with a fixed potential for a threshold value correcting operation for retaining a voltage corresponding to a threshold voltage of the drive transistor in the storage capacitor. When setting a voltage across the storage capacitor to the threshold voltage of the drive transistor by repeating the threshold value correcting operation a plurality of times on a time division basis, the control unit effects control to perform each the threshold value correcting operation and the sampling transistor to a conducting state. | 08-21-2008 |
| 20080198182 | Display device and electronic apparatus - With a source voltage of a transistor driving a light emitting element set to a fixed voltage, variations in an emission luminance due to variations in the threshold voltage of the transistor are corrected. The fixed voltage is set in accordance with a signal level of a drive pulse signal on-off controlling a transistor supplying power to the first transistor. | 08-21-2008 |
| 20080218455 | Organic electroluminescence display - The present invention is to provide an organic electroluminescence display including a plurality of pixels, each pixel being composed of a plurality of sub-pixels, each of the sub-pixels having: an organic electroluminescence element configured to have a structure arising from stacking a drive circuit and an organic electroluminescence light-emitting part connected to the drive circuit; wherein to the drive circuit of one sub-pixel of the plurality of sub-pixels included in one pixel, an auxiliary capacitor connected in parallel to the organic electroluminescence light-emitting part of the drive circuit is connected, and the auxiliary capacitor is provided in the same plane as that of the drive circuit. | 09-11-2008 |
| 20080224607 | DISPLAY - Disclosed herein is a display including an acceptor substrate having thereon a red light-emitting element column, a green light-emitting element column, and a blue light-emitting element column that are arranged along a row direction and are each obtained by arranging rectangular organic light-emitting elements for generating light of one of red, green, and blue along a longitudinal direction of the organic light-emitting elements. | 09-18-2008 |
| 20080224621 | Display device - A display device includes a pixel area where a plurality of pixels are arranged in a matrix and a driving circuit for driving the pixel area. Each of the pixels includes a signal-level holding capacitor having two ends, a first transistor that is turned on and off in accordance with a write signal, a second transistor having a gate connected to the one end of the signal-level holding capacitor and a source connected to the other end of the signal-level holding capacitor, a current-driven self-luminous light-emitting element having a cathode held at a cathode potential and an anode connected to the source of the second transistor, a third transistor that is turned on and off in accordance with a driving-pulse signal, and a fourth transistor that is turned on and off in accordance with a control signal. | 09-18-2008 |
| 20080225025 | Display device and electronic apparatus - A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels. | 09-18-2008 |
| 20080225026 | Display apparatus, driving method thereof, and electronic system - A display apparatus includes: a pixel array section including a row of first and second scanning lines, a column of signal lines, and pixels in a matrix, each of the pixels disposed at an intersection of both of the lines; and a drive section. The drive section performs line progressive scanning on the pixels. The pixel includes a light emitting device, a sampling transistor, a driving transistor, a switching transistor, and a holding capacitor. The sampling transistor samples a video signal on the signal line to hold the signal potential in the holding capacitor, the driving transistor makes the light emitting device conductive to be in a luminous state in accordance with the held signal potential, and the switching transistor becomes ON in accordance with the control signal supplied in advance of the sampling of the video signal to change the light emitting device to a non-luminous state. | 09-18-2008 |
| 20080231199 | Driving method for organic electroluminescence light emitting section - A driving method for an organic electroluminescence light emitting section of an organic EL display apparatus which includes a scanning circuit, an image signal outputting circuit, totaling N×M organic electroluminescence elements, M scanning lines, N data lines, and a current supplying section. The driving method, includes the steps of: carrying out a preprocess; carrying out a threshold voltage cancellation process; carrying out a wiring process; and supplying current to the organic electroluminescence light emitting section to drive the organic electroluminescence light emitting section. | 09-25-2008 |
| 20080231200 | Driving method for organic electroluminescence light emitting section - A driving method for an organic electroluminescence light emitting section using a driving circuit, the driving circuit includes a driving transistor, an image signal writing transistor, a light emission control transistor, and a capacitor section. The driving method includes the steps of: carrying out a preprocess of applying a first node initialization voltage and applying a second node initialization voltage; carrying out a threshold voltage cancellation process; placing the light emission control transistor into an on state, a writing process of applying an image signal; and placing the image signal writing transistor into an off state so that current is supplied to the organic electroluminescence light emitting section to drive the organic electroluminescence light emitting section. | 09-25-2008 |
| 20080231559 | Display apparatus and driving method therefor, and electronic device - After a sampling transistor is turned ON at a first timing when a control signal has risen, during a sampling period from a second timing when a video signal has risen from a reference potential to a signal potential to a third timing when the control signal has fallen and is turned OFF, the sampling transistor samples and writes the signal potential in a holding capacitance, and negatively feeds back a current flowing into a drive transistor during the sampling period to the holding capacitance and applies mobility correction of the drive transistor on the written signal potential. A signal driver adjusts the second timing for the video signal supplied to respective signal lines to correct a backward shift of the third timing due to a transmission delay along a scanning line of the control signal output from the control scanner. | 09-25-2008 |
| 20080231576 | Pixel circuit and display apparatus as well as fabrication method for display apparatus - Disclosed herein is a pixel circuit including: at least one transistor whose conduction state is controlled by a drive signal received by a control terminal; and a driving wiring line to which the drive signal is propagated, the control terminal of the transistor being connected to the driving wiring line. The driving wiring line is connected to a wiring line in a different layer so as to form a multilayer wiring line. | 09-25-2008 |
| 20080238830 | Display device, driving method thereof, and electronic apparatus - A display device includes pixel array unit and a driver unit. A sampling transistor samples a signal potential to hold the signal potential in a holding capacitor. A driver transistor flows a drive current to a light emitting element in accordance with the signal potential held. A main scanner in the driver unit outputs the control signal having a shorter pulse width than the time period to the scan line to make the sampling transistor conductive during a time period while the signal line is at the signal potential, thereby adding the signal potential a correction for a mobility of the driver transistor when the signal potential is held in the holding capacitor. | 10-02-2008 |
| 20080238836 | Display apparatus and method for making the same - A pixel has an outer region extending linearly along a boundary with an adjacent pixel and an inner region extending along the inner side of the outer region. Wiring lines are arranged across the outer region and the inner region. An outer uneven zone is formed along the outer region and on a substrate due to level differences resulting from the presence of the wiring lines. Similarly, an inner uneven zone is formed along the inner region and on the substrate due to level differences resulting from the presence of the wiring lines. A pattern of a conductor film of which the wiring lines are made is formed properly such that recessed portions of the outer uneven zone are located directly behind their corresponding raised portions of the inner uneven zone, as viewed from inside the pixel. | 10-02-2008 |
| 20080238901 | Display apparatus, display-apparatus driving method and electronic equipment - In the present invention, there is provided a display apparatus including: a pixel array section including pixel circuits each having an electro-optical device, a write transistor configured to carry out a voltage storing process to sample a video signal and store the sampled video signal, a holding capacitor configured to hold the sampled video signal, and a driving transistor configured to drive the electro-optical device; and a driving circuit configured to carry out a selective scan operation on the pixel circuits in row units, and a threshold-voltage correction operation to correct variations of the threshold voltage of every driving transistor wherein, before the driving circuit carries out a threshold-voltage correction operation in a horizontal scan period, the driving circuit performs a preparatory operation prior to the horizontal scan period in order to fix each of electric potentials appearing on the gate and the source of the driving transistor at a predetermined level. | 10-02-2008 |
| 20080246403 | Display, method for driving display, and electronic apparatus - Disclosed herein is a display including: a pixel array part configured to include pixels that are arranged in a matrix, each having an electro-optical element, a write transistor for writing a video signal, a drive transistor for driving the electro-optical element based on the video signal written by the write transistor, and a holding capacitor connected between the gate and source of the drive transistor, wherein the holding capacitor includes a first electrode, a second electrode disposed to face one surface of the first electrode for forming a first capacitor, and a third electrode disposed to face the other surface of the first electrode for forming a second capacitor, and the first capacitor and the second capacitor are connected in parallel to each other electrically. | 10-09-2008 |
| 20080246747 | Display, method for driving display, and electronic apparatus - Disclosed herein is a display including: a pixel array part configured to include pixels arranged in a matrix, each of the pixels including an electro-optical element, a write transistor for sampling and writing an input signal voltage supplied through a signal line, a holding capacitor for holding the input signal voltage written by the write transistor, and a drive transistor for driving the electro-optical element based on the input signal voltage held in the holding capacitor. | 10-09-2008 |
| 20080278464 | Pixel circuit and display device - A pixel circuit includes an electro-optical element configured to emit light in response to a drive signal, a drive transistor configured to supply the drive signal to the electro-optical element, a pixel capacitor connected to a control input terminal of the drive transistor, a switching transistor provided at the control input terminal of the drive transistor, and a drive-signal stabilizing circuit configured to maintain the drive signal at a constant level. Each of the drive transistor and the switching transistor has a lightly doped drain structure, and a lightly doped drain region of the switching transistor has a longer length than a lightly doped drain region of the drive transistor. | 11-13-2008 |
| 20090002354 | Display device and method for driving the same - A display device includes a display unit, a horizontal drive circuit, and a vertical drive circuit, the display unit including pixels in a matrix formation, as well as respective signal lines and scan lines via which the drive circuits drive the pixels. Each pixel includes a light-emitting element, a hold capacitor, a write transistor, and a drive transistor. Mobility fluctuations in the drive transistor are compensated for by successively setting the voltage of the signal line to an intermediate voltage and to a tone voltage. In addition, the intermediate voltage is varied in accordance with the tone voltage as well as with the distance from the input terminal of a write signal to a respective pixel. The device thereby compensates for mobility fluctuations in the drive transistor and prevents shading due to irregularities in the waveform of the write signal. | 01-01-2009 |
| 20090009441 | ORGANIC EL DEVICE AND ORGANIC EL DISPLAY APPARATUS - In the present invention, there is provided an organic electro luminescence device including: an organic electro luminescence light emitting element; and a driving circuit for driving the organic electro luminescence light emitting element, wherein the driving circuit includes (A) an element driving transistor, (B) a video-signal write transistor, and (C) a capacitor having a pair of particular and other electrodes, with regard to the element driving transistor, (A-1) a source/drain area provided on a particular side of the element driving transistor to serve as a particular source/drain area of the element driving transistor is connected to a current supply section, and (A-2) a source/drain area provided on the other side of the element driving transistor to serve as another source/drain area of the element driving transistor is connected to the anode electrode of the organic electro luminescence light emitting element and the particular electrode of the capacitor, forming a second node. | 01-08-2009 |
| 20090033652 | Display device and method of driving the same - A display device includes a display portion formed by disposing pixels in matrix, in which the pixel includes: a light emitting element; a signal level holding capacitor; a writing transistor for receiving a write signal from the vertical drive circuit, and being turned ON/OFF by the write signal, thereby setting a voltage across the terminals of the signal level holding capacitor at a signal level on a signal line; and a driving transistor for driving the light emitting device; and the vertical drive circuit sets a signal level of the write signal for an entire or partial time period of a time period for which the drive for the light emitting device is not influenced in a non-emission time period for which light emission of the light emitting device is stopped at a signal level of the write signal on a shorter time period side in other time periods. | 02-05-2009 |
| 20090058771 | Method of driving organic electroluminescence emission portion - Disclosed herein is a method of driving an organic electroluminescence emission portion, the method including the steps of: applying a first node initialization voltage to corresponding one of the data lines, and supplying the video signal instead of the first node initialization voltage for a predetermined scanning time period, applying the first node initialization voltage from the corresponding one of the data lines to the first node through the write transistor held in an ON state for initializing the potential at the first node, and holding a state of applying the first node initialization voltage from the corresponding one of the data lines to the first node through the write transistor held in an ON state for holding the potential at the first node. | 03-05-2009 |
| 20090066616 | Display apparatus and driving method for display apparatus - The present invention provides a display apparatus, including: a display section including a plurality of pixels disposed in a matrix and a plurality of signal lines and a plurality of scanning lines; and a horizontal driving circuit and a vertical driving circuit configured to drive the signal lines and the scanning lines of the display section to display an image on the display section; each of the pixels including a light emitting device; a signal level storage capacitor, a writing transistor, and a driving transistor. | 03-12-2009 |
| 20090073095 | Display device and driving method of display device - The present invention sets a display device for displaying a desired image on a display section, the display section being formed by arranging pixels in a form of a matrix, by outputting a driving signal for a signal line and a writing signal to the signal line and a scanning line of the display section by a horizontal driving circuit and a vertical driving circuit, wherein the pixel includes a light emitting element, a signal level storage capacitor, a transistor for writing. | 03-19-2009 |
| 20090091562 | Display Apparatus and Driving Method Therefor - A sampling transistor T | 04-09-2009 |
| 20090101904 | DISPLAY DEVICE - Disclosed herein is a display device including: a support substrate; a drive circuit provided on the support substrate; an interlayer insulating film which covers the drive circuit; organic field light-emitting elements arranged in a display region on the interlayer insulating film; and a lead-out wiring extended from the organic field light-emitting elements to a peripheral region around the display region, wherein the interlayer insulating film includes a laminated film made up of an inorganic insulating film and organic insulating film stacked in this order, the organic insulating film has an isolation trench which surrounds the display region, the isolation trench being devoid of the organic insulating film and having the inorganic insulating film at its bottom, and the drive circuit and lead-out wiring are insulated from each other by the inorganic insulating film where the lead-out wiring crosses the isolation trench. | 04-23-2009 |
| 20090115708 | ACTIVE MATRIX DISPLAY DEVICE - An active matrix display device includes a driving section provided on a substrate, an insulating film stacked on the substrate, and light-emitting elements arranged in a matrix on the insulating film, and each of the light-emitting elements includes an light-emitting layer between its upper and lower electrodes, the active matrix display device being driven by the driving section provided for each of the light-emitting elements, the active matrix display device also including a first wiring required to cause the light-emitting element to emit light, and a second wiring disposed in the underlying layer of the first wiring via the insulating film, the second wiring also required to cause the light-emitting element to emit light, wherein the first or second wiring is branched into a plurality of wirings at the intersection between the two wirings. | 05-07-2009 |
| 20090115709 | Display apparatus, display-apparatus driving method and electronic instrument - Disclosed herein is a display apparatus including: a pixel array section including pixel circuits each having an electro optical device, a signal writing transistor, a signal storage capacitor, and a device driving transistor; and a pixel driving section, wherein: in a no-light emission period, the pixel driving section carries out a threshold-voltage correction process by changing an electric potential appearing on an electrode of the device driving transistor close to the electro optical device toward an electric potential obtained by subtracting the threshold voltage of the device driving transistor from the initialization electric potential of the gate electrode of the device driving transistor and a mobility correction process of negatively feeding a current flowing through the device driving transistor back to the gate electrode of the device driving transistor; and when a current is not flowing through the device driving transistor, the pixel driving section applies a positive bias voltage to the gate electrode of the signal writing transistor. | 05-07-2009 |
| 20090115765 | Method of driving organic electroluminescence emission portion - Disclosed herein is a method of driving an organic electroluminescence emission portion, the driving method including the steps of: executing steps from preprocessing step to writing step for at least continuous three scanning time periods; applying a first node initialization voltage to corresponding one of the data lines, and supplying the video signal instead of the first node initialization voltage for each of the scanning time periods; applying the first node initialization voltage from the corresponding one of the data lines to the first node through the write transistor held in the ON state, thereby initializing the potential at the first node; and applying the first node initialization voltage from the corresponding one of the data lines to the first node through the write transistor held in an ON state, thereby holding the potential at the first node. | 05-07-2009 |
| 20090121984 | Electroluminescent display panel and electronic device - An EL display panel including: a pixel array section in which EL display elements whose light emission state is controlled by an active matrix driving system are arranged in a form of a matrix; a first writing control line driving section and a second writing control line driving section configured to drive each writing control line from both sides of the pixel array section; and a first power supply line driving section and a second power supply line driving section configured to drive a power supply line disposed along a direction of a horizontal line from both sides of the pixel array section, the first power supply line driving section and the second power supply line driving section being respectively arranged between the first writing control line driving section and the pixel array section and between the second writing control line driving section and the pixel array section. | 05-14-2009 |
| 20090122047 | Display apparatus, driving method for display apparatus and electronic apparatus - The present invention provides a display apparatus, includes: a pixel array section including a plurality of scanning lines disposed in rows, a plurality of signal lines disposed in columns, and a plurality of pixels arranged in rows and columns at places at which the scanning lines and the signal lines intersect with each other; and a driving section configured to drive the pixels through the scanning lines and the signal lines; the driving section carrying out block-sequential driving wherein the scanning lines are grouped for each predetermined number to form blocks and the pixels disposed in rows and columns are sequentially driven in a unit of a block and line-sequential driving wherein the scanning lines are scanned in each of the blocks to sequentially drive the pixels in a unit of a row. | 05-14-2009 |
| 20090122053 | Display apparatus, driving method for display apparatus and electronic apparatus - A plurality of scanning periods are combined to form a composite period (2H). Within the first period of the front half, threshold value (Vth) correction is carried out all at once, and within the second period of the latter half, signal (Vsig) writing operation is carried out. High speed writing can be carried out even where the scanning period is shortened. | 05-14-2009 |
| 20090128027 | ACTIVE MATRIX DISPLAY DEVICE - An active matrix display device includes a driving section provided on a substrate, an insulating film stacked on the driving section, and light-emitting elements arranged in a matrix on the insulating film, each of the light-emitting elements having a light-emitting layer between upper and lower electrodes, the active matrix display device being driven by the driving section provided for each of the light-emitting elements, the active matrix display device also includes an auxiliary wiring provided on the same layer as the lower electrode of the light-emitting element and adapted to adjust the electrical resistance of the upper electrode, and drive wirings disposed in the underlying layer of the auxiliary wiring via the insulating film and adapted to drive the light-emitting element, wherein the auxiliary or drive wiring is routed in a roundabout manner where the auxiliary and drive wirings overlap. | 05-21-2009 |
| 20090135111 | Display apparatus - Disclosed herein is a display apparatus, including: a pixel array section including a plurality of pixel circuits disposed in a matrix and each including a driving transistor for producing driving current, a storage capacitor for storing information of a image signal amplitude, an electro-optical element connected to an output terminal side of the driving transistor, and a sampling transistor for writing information of the signal amplitude into the storage capacitor, the driving transistor being operable to produce driving current based on the information stored in the storage capacitor and supply the driving current to the electro-optical element to cause the electro-optical element to emit light; a driving signal fixing circuit for keeping the driving current fixed; and a light blocking layer provided on the light input side of a transistor which participates in the driving signal fixing function and for preventing appearance of leak current of the transistors arising from light irradiation. | 05-28-2009 |
| 20090135112 | Display apparatus and fabrication method and fabrication apparatus for the same - A display apparatus includes: a pixel array section including a plurality of pixel circuits disposed in rows and columns and each including a driving transistor configured to produce driving current, a storage capacitor configured to store information in accordance with a signal amplitude of an image signal, an electro-optical element connected to an output terminal of the driving transistor, and a sampling transistor configured to write information in accordance with the signal amplitude into the storage capacitor, the driving transistor being operable to produce driving current based on the information stored in the storage capacitor and supply the driving current to the electro-optical element to cause the electro-optical element to emit light. The pixel circuit includes a pixel divided into a plurality of divisional pixels each of which independently includes the electro-optical element, the storage capacitor and the driving transistor. | 05-28-2009 |
| 20090135166 | Display apparatus and fabrication method and fabrication apparatus for the same - A pixel array section includes a plurality of pixel circuits disposed in a matrix and each including a driving transistor, a storage capacitor, an electro-optical element, and a sampling transistor. Each pixel circuit includes a pixel divided into a plurality of divisional pixels for each of which an electro-optical element is provided, and a test transistor provided between the driving transistor and the electro-optical elements for carrying out on/off operations for specifying whether or not the electro-optical element is a dark spot element so that the electro-optical element of the dark spot can be specified. The number of the test transistors is smaller than the number of the divisional elements of the original one pixel. | 05-28-2009 |
| 20090135174 | Display apparatus, driving method for display apparatus and electronic apparatus - The present invention provides a display apparatus, includes: a pixel array section; and a driving section; the pixel array section including a plurality of scanning lines extending along the direction of a row, a plurality of signal lines extending along the direction of a column, and a plurality of pixels disposed in rows and columns at places at which the scanning lines and the signal lines intersect with each other. The driving section including a write scanner and a signal selector. | 05-28-2009 |
| 20090167647 | Display device and electronic apparatus - Disclosed herein is a display device including a pixel array part configured to include scan lines disposed along rows, signal lines disposed along columns, and pixels that are disposed at intersections of the scan lines and the signal lines and arranged in a matrix, each of the pixels having at least a sampling transistor, a drive transistor, a switching transistor, a hold capacitor, and a light-emitting element; and a drive part configured to include a scanner and a driver, the driver supplying a video signal to the signal lines along the columns. | 07-02-2009 |
| 20090167652 | Display device, method for driving same, and electronic apparatus - In an embodiment of the present invention, a signal driver employs a two-stage system in which the potential of a signal line (SL) is switched from a reference potential (Vofs) to an intermediate potential (Vofs | 07-02-2009 |
| 20090184898 | Electroluminescent display panel and electronic apparatus - An electroluminescent display panel has pixel circuits for the active matrix driving system. Each pixel circuit has a thin-film transistor in which a portion of a pattern of a metal wiring material above the channel layer of the thin-film transistor is so laid out as to shield the channel region of the thin-film transistor. | 07-23-2009 |
| 20090195480 | Display apparatus, driving method for display apparatus and electronic apparatus - Disclosed herein is a display apparatus, including a pixel array section; and a driving section; the pixel array section including a plurality of scanning lines extending along the direction of a row, a plurality of signal lines extending along the direction of a column, a plurality of pixels disposed in rows and columns at places at which the scanning lines and the signal lines intersect with each other, and a plurality of feed lines disposed in parallel to the scanning lines, the driving section including a signal selector for supplying a driving signal having a signal potential to the signal lines, a write scanner for successively supplying a control signal to the scanning lines, and a drive scanner for supplying a power supply, which changes over between a high potential and a low potential, to the feed lines. | 08-06-2009 |
| 20090195527 | Display apparatus, driving method for display apparatus and electronic apparatus - A display apparatus, including: a pixel array section; and a driving section; the pixel array section including a plurality of scanning lines disposed along the direction of a row, a plurality of signal lines disposed along the direction of a column, a plurality of pixels disposed in rows and columns at places at which the scanning lines and the signal lines intersect with each other, and a plurality of feed lines disposed in parallel to the scanning lines; the driving section including a scanner for successively supplying a control signal to the scanning lines with a phase difference of a horizontal period, a selector for supplying an image signal having a signal potential, which changes over between a reference potential and a signal potential within each horizontal period, to the signal lines, and a power supply for supplying a power supply voltage, which changes over between a high potential and a low potential within each horizontal period, to the feed lines. | 08-06-2009 |
| 20090219230 | El Display panel module, el display panel and electronic apparatus - Disclosed herein is an electro luminescence display panel module, including: a pixel array section including a plurality of pixels, a plurality of signal lines extending in a vertical direction, and a plurality of horizontal lines extending in a horizontal direction, the signal lines and the horizontal lines being connected to the pixels such that each of the signal lines is connected to N ones of the pixel circuits which are connected to the same one of the horizontal lines, N being a natural number equal to or greater than 2; a first sampling control line; N second sampling control lines; a sampling scan driver; N pulse power supplies; and a horizontal selector; the pixel array section, the first sampling control lines, the N second sampling control lines, the sampling scan driver, the N pulse power supplies and the horizontal selector being mounted on the same substrate. | 09-03-2009 |
| 20090219231 | El display panel, electronic apparatus and a method of driving el display panel - Disclosed herein is an electro luminescence display panel having a pixel structure corresponding to an active matrix drive system, including: a reverse bias potential generating portion configured to generate a reverse bias potential in which corresponding one of gradation values of pixels is reflected; and a voltage applying portion configured to apply the reverse bias potential to a gate electrode of a drive transistor composing a pixel circuit adapted to operate for a non-emission time period. | 09-03-2009 |
| 20090219234 | EL display panel module, EL display panel, integrated circuit device, electronic apparatus and driving controlling method - Disclosed herein is an EL display panel module, including: a pixel array section including a panel serving as a substrate, and a plurality of pixels disposed in a matrix on the panel and each including a pixel circuit, and a light emitting region; and a driving circuit for driving the pixel circuits such that a threshold value correction operation is carried out commonly for plural ones of the pixel circuits which are connected to each signal line and writing of a signal potential corresponding to a gradation value is executed time-sequentially for the individual pixel circuits, the driving circuit applying a reset potential lower than a reference potential for the threshold value correction to the plural ones of the pixel circuits before first writing of the signal potential after the threshold value correction operation is completed; the pixel array section and the driving circuit being mounted on the same substrate. | 09-03-2009 |
| 20090219235 | EL display panel, electronic apparatus and EL display panel driving method - An electro luminescence display panel adopting an active-matrix driving method and including pixel circuits; a capacitor control line; a coupling capacitor; and a pulse voltage source. | 09-03-2009 |
| 20090219278 | Electroluminescence display panel, electronic apparatus and driving method for electroluminescence display panel - An EL display panel having a pixel structure ready for an active matrix driving method, includes: an input signal line driving section configured to output an intermediate potential for mobility correction, a threshold value correction potential and a signal potential corresponding to a gradation value in order for each horizontal scanning period; and a writing controlling driving section configured to have a control period for keeping an on state of a sampling transistor for controlling writing of the potentials within a period beginning with a timing midway of an application period of the intermediate potential and ending with another point of time midway of an application period of the signal potential. | 09-03-2009 |
| 20090243978 | Display apparatus - A display apparatus, includes: a plurality of pixel circuits disposed in rows and columns and each including a driving transistor configured to produce driving current, an electro-optical element connected to an output terminal of the driving transistor, a storage capacitor configured to store information corresponding to a signal amplitude of an image signal, and a first sampling transistor and a second sampling transistor connected in cascade connection for writing the information corresponding to the signal amplitude into the storage capacitor; a vertical scanning section configured to produce a vertical scanning pulse for vertically scanning the pixel circuits; a plurality of vertical scanning lines connected to the vertical scanning section; a horizontal scanning section configured to supply the image signal to the pixel circuits in synchronism with the vertical scanning by the vertical scanning section; and a plurality of horizontal scanning lines connected to the horizontal scanning section. | 10-01-2009 |
| 20090244049 | Panel and driving controlling method - The present invention provides a panel, including: a plurality of pixel circuits disposed in rows and columns and each including a light emitting element for emitting light in response to driving current, a sampling transistor for sampling an image signal, a driving transistor for supplying the driving current to the light emitting element, and a storage capacitor for storing a predetermined potential; a power supplying section configured to supply a predetermined power supply voltage to the pixel circuits disposed in rows and columns; and a power supply line for connecting all of the pixel circuits disposed in rows and columns and the power supply section to each other. | 10-01-2009 |
| 20090244050 | PANEL AND DRIVING CONTROLLING METHOD - The present invention provides a panel, including: a plurality of pixel circuits disposed in rows and columns and each including a light emitting element for emitting light in response to driving current, a sampling transistor for sampling an image signal, a driving transistor for supplying the driving current to the light emitting element, and a storage capacitor for storing a predetermined potential; and a power supplying section configured to supply a power supply voltage of a high potential or a low potential at a time to all of the pixel circuits arranged in rows and columns; the power supplying section setting the power supply voltage to be supplied to the low potential, with which the gate-source voltage of the driving transistor becomes higher than a threshold voltage of the driving transistor, by Q times within a one-field period, Q being equal to or greater than 2. | 10-01-2009 |
| 20090244055 | Image displaying apparatus and image displaying method - An image displaying apparatus is configured to display a desired image on an image displaying section employed in the image displaying apparatus by making use of a signal-line driving circuit and a scan-line driving circuit to drive pixel circuits. Each of the pixel circuits employs at least a light emitting device, a signal-level holding capacitor, a driving transistor for driving the light emitting device and a signal writing transistor. The signal-line driving circuit and the scan-line driving circuit drive each of the pixel circuits so as to put the light emitting device employed in the pixel circuit in a no-light emission state of emitting no light in a no-light emission period and a light emission state of emitting light in a light emission period repeatedly. | 10-01-2009 |
| 20090256168 | DISPLAY ELEMENT, MANUFACTURING METHOD OF THE SAME AND DISPLAY DEVICE - A display element including: a first electrode; an auxiliary wiring formed on the periphery of the first electrode in such a manner as to be insulated from the first electrode; an insulating portion having first and second openings, the first opening adapted to expose the first electrode, and the second opening adapted to expose the auxiliary wiring, an organic layer adapted to cover at least the exposed surface of the first electrode in the first opening; and a second electrode adapted to cover at least the organic layer and the exposed surface of the auxiliary wiring in the second opening, wherein the organic layer has a layered structure which includes at least a hole injection layer and light-emitting layer stacked in this order from the side of the first electrode, and the edge of the hole injection layer is provided more inward than the edge of the organic layer. | 10-15-2009 |
| 20090262047 | EL display panel and electronic apparatus - Disclosed herein is an electroluminescence display panel including pixel circuits corresponding to an active-matrix drive system, the electroluminescence display panel including a structure configured to include first light-emitting areas corresponding to an emission color that is strongest in a characteristic of changing a threshold voltage of a thin film transistor and second light-emitting areas that correspond to another emission color and are each disposed between the first light-emitting areas, wherein a sampling transistor in each of the pixel circuits for driving the second light-emitting areas is disposed in an area corresponding to a range of one fourth to three fourths of a length from a peripheral edge of one of two first light-emitting areas that are adjacent to each other with intermediary of the second light-emitting area of the sampling transistor to a peripheral edge of the other of the two first light-emitting areas. | 10-22-2009 |
| 20090273548 | DISPLAY DEVICE - A display device includes: a display element including a plurality of sub-elements connected to retention capacities, respectively; a plurality of writing transistors arranged corresponding to the sub-elements, respectively, and writing an image signal to the retention capacities; and a plurality of driving transistors driving the sub-elements, respectively based on the image signal written through the writing transistors. The writing transistors, the driving transistors or both of them are aligned along a source-drain alignment direction in which a drain electrode and a source electrode of each transistor in the writing transistors and driving transistors are aligned, and the writing transistors, the driving transistors or both of them are arranged so that drain electrodes or source electrodes in a pair of transistors are immediately adjacent to each other, the pair of transistors being a pair of the writing transistors or the driving transistors, and being immediately adjacent to each other. | 11-05-2009 |
| 20090278771 | EL display panel, electronic instrument and panel driving method - Disclosed herein is an organic electro luminescence display panel provided with a pixel structure and a wiring structure which are adapted to an active matrix driving method; and driven by an electric potential asserted on each multi-consecutive-row bundle composed of adjacent power-supply lines, which are electrically tied to each other, each stretched in a horizontal direction and each used for supplying a driving current to an organic electro luminescence light emitting device employed in every pixel circuit of said organic electro luminescence display panel, to serve as an electric potential having two or more different magnitudes. | 11-12-2009 |
| 20090284451 | DISPLAY DEVICE - A display device includes: a pixel array having a plurality of pixels arranged in a matrix form, each of the pixels including a sampling transistor configured to sample a data potential from a video signal line which is insulated from and intersects a control line in response to the change in potential of the control line, and a light-emitting element configured to emit light at the brightness commensurate with the magnitude of the post-sampling data potential. | 11-19-2009 |
| 20090294163 | Display device, method of laying out wiring in display device, and electronic device - A display device includes: a pixel array section having pixels arranged in a form of a matrix on a display panel; a first terminal group disposed on the display panel so as to correspond to each control line of a first control line group arranged in each pixel row of the pixel array section; a first wiring group for electrically connecting each terminal of the first terminal group to each control line of the first control line group; a second terminal group disposed on the display panel for a second control line group arranged in each pixel row of the pixel array section with a plurality of control lines as a unit; and a second wiring group for electrically connecting each terminal of the second terminal group to each control line of the second control line group through parts between the terminals of the first terminal group. | 12-03-2009 |
| 20090295785 | DISPLAY APPARATUS, DRIVING METHODS AND ELECTRONIC INSTRUMENTS - A display apparatus employs a pixel array section including pixel circuits forming a matrix, signal lines as columns, scan lines as rows and power-supply lines, and driving sections. The driving sections are a signal selector, a write scanner and a drive scanner. The signal selector provides an electric potential representing a gradation or a predetermined reference electric potential. The write scanner provides a control signal. The drive scanner provides a power-supply voltage changing the electric potential from high to low. The drive scanner drives adjacent power-supply lines as a group. The number of lines as a group is determined in advance. The drive scanner switches a power-supply voltage from high to low and vice versa, and applies the voltage to groups by shifting the phase from group to group. The voltage is supplied to a group at the same phase and switched the electric potential. | 12-03-2009 |
| 20090315812 | Panel and drive control method - In the present embodiment, threshold correction is performed simultaneously on all the pixels thanks to a common power line (DS) shared by all the pixels. Then, video signal lines are set to a second reference potential higher than a reference potential, followed by multi-step threshold correction and video signal writing which are performed in a line sequential manner. Performing the threshold correction immediately before the video signal writing ensures shorter time from the threshold correction to the video signal writing. This suppresses leak currents, providing improved image quality. | 12-24-2009 |
| 20090322722 | Display device, a method of driving the same, and electronic apparatus including the same - Disclosed herein is a display device, including a display portion including a plurality of first wirings and a plurality of second wirings each disposed in rows, respectively, a plurality of third wirings disposed in columns, respectively, and a plurality of light emitting elements and a plurality of pixel circuits each disposed in a matrix, a first drive portion for successively applying a selection pulse containing a first voltage, a second voltage and a third voltage to the plurality of first wirings, a second drive portion for successively applying a current control pulse in accordance with which a transient current is caused to flow through the pixel circuit to the plurality of second wirings, and a third drive portion for applying a signal pulse containing a signal potential corresponding to a video signal to each of the plurality of third wirings. | 12-31-2009 |
| 20090322730 | DISPLAY DEVICE - Disclosed herein is a display device that allows a vertical scanning line to be shared between a plurality of rows without increasing the number of control lines or control signals, the display device including pixel circuits; vertical scanning lines; and horizontal scanning lines. | 12-31-2009 |
| 20090322734 | Display device - Disclosed herein is a display device including a pixel array section having pixel circuits arranged in a form of a matrix, the pixel circuits each including a driving transistor for generating a driving current, an electrooptic element connected to an output terminal of the driving transistor, a storage capacitor for retaining information corresponding to signal amplitude of a video signal, and a sampling transistor for writing the information corresponding to the signal amplitude to the storage capacitor; a vertical scanning section configured to generate a vertical scanning pulse for vertical scanning of the pixel circuits; a horizontal scanning section configured to supply the video signal to the pixel circuits so as to coincide with the vertical scanning in the vertical scanning section; and a driving signal constancy achieving circuit for holding the driving current constant. | 12-31-2009 |
| 20100006853 | ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE SAME - An electronic device includes: a substrate; and a plurality of thin film transistors disposed in lines at least in one direction in terms of planar view when viewed from one principal surface of the substrate; each of the plurality of thin film transistors including a preliminary heating layer on the substrate, an insulating layer on the preliminary heating layer, and a thin film semiconductor layer a part of which overlaps the preliminary heating layer through the insulating film, wherein a portion of the preliminary heating layer other than the portion overlapping the thin film semiconductor layer has a planar shape which is line-symmetrical with respect to an axis extending in a direction perpendicularly intersecting the one direction. | 01-14-2010 |
| 20100026612 | Display device and electronic apparatus - Disclosed herein is a sampling transistor in an embodiment of the present invention is kept at the on-state with a time width shorter than one horizontal cycle, during the period from the rising of a control pulse supplied from a scanner to a scan line WS to the falling of the control pulse, and samples a video signal from a signal line SL to write the video signal to a hold capacitor. The sampling transistor includes the channel region between the source and the drain and has a sandwich gate structure in which a shield that electrically shields the channel region is disposed on the other side of the channel region. This suppresses change in the threshold voltage of the sampling transistor. | 02-04-2010 |
| 20100033476 | Display device and electronic apparatus - A sampling transistor in embodiments of the present invention is kept at the on-state with a time width shorter than one horizontal cycle, during the period from the rising of a control pulse supplied from a scanner to the falling of the control pulse, and samples a video signal Vsig from a signal line SL to write the video signal Vsig to a hold capacitor. A sampling transistor T1 has a double gate structure in which a pair of transistor elements are connected in common. This suppresses change in the threshold voltage of the sampling transistor. | 02-11-2010 |
| 20100033510 | Image pickup apparatus and method of driving the same - A display apparatus includes: a display area formed by disposing pixel circuits in a matrix; a signal line drive circuit for generating drive signals for signal lines in accordance with image data, and outputting the drive signals for the signal lines to signal lines of the display area, respectively; and a scanning line drive circuit for outputting write signals to scanning lines for write of the display area, respectively; wherein when there is no change in the image data, the scanning line drive circuit stops the write signals from being outputted. | 02-11-2010 |
| 20100039421 | DRIVING METHOD FOR ORGANIC ELECTROLUMINESCENCE LIGHT EMITTING SECTION - A driving method for an organic EL light emitting section is provided which achieves optimization of a mobility correction process for a transistor of a driving circuit in response to luminance. In a driving method for an organic EL light emitting section wherein a driving circuit | 02-18-2010 |
| 20100149143 | Display apparatus, pixel layout method for display apparatus, and electronic device - In a display apparatus, a plurality of pixels are disposed in an array. Each pixel includes: an electro-optical element; a write transistor that writes a picture signal; a drive transistor that drives the electro-optical element according to the picture signal written by the write transistor; a hold capacitor, connected between the gate and source electrodes of the drive transistor, that holds the picture signal written by the write transistor; and an auxiliary capacitor, connected between the anode of the electro-optical element and a fixed potential node. Each auxiliary capacitor is formed straddling the boundary between specific pixel pairs adjacent in the pixel layout direction on a pixel row. An island metal pattern is formed between pixel pairs other than the specific pixel pairs, at a site corresponding to that of the auxiliary capacitor. | 06-17-2010 |
| 20100149152 | Display device, driving method for the display device, and electronic apparatus - A display device includes: a pixel array unit in which pixels are arranged in a matrix shape, each of the pixels including an electro-optic element, a writing transistor that writes a video signal, a driving transistor that drives the electro-optic element according to the video signal written by the writing transistor, and a storage capacitor that is connected between a gate electrode and a source electrode of the driving transistor and stores the video signal written by the writing transistor; and a power supply line that supplies power supply potential to the pixels, the power supply potential selectively taking first potential for supplying an electric current to the driving transistor and second potential for applying reverse bias to the electro-optic element. | 06-17-2010 |
| 20100149153 | Display device, display device drive method, and electronic apparatus - In a display device in which pixels are arranged in a matrix, each pixel has an electro-optical element, a write transistor that writes a video signal, a drive transistor that drives the electro-optical element in accordance with the video signal written by the write transistor, a storage capacitor that is connected between a gate electrode and a source electrode of the drive transistor to store the video signal written by the write transistor. Current is prevented from flowing to the drive transistor when the write transistor writes the video signal. | 06-17-2010 |
| 20100156860 | Display apparatus and electronic apparatus - Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel. | 06-24-2010 |
| 20100230681 | Display unit - A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity. | 09-16-2010 |
| 20100271347 | Display unit - A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode. | 10-28-2010 |
| 20100289782 | Pixel circuit, display apparatus, and driving method for pixel circuit - A pixel circuit includes: a light emitting element; a driving transistor for applying current to the light emitting element in response to a signal value applied between a gate and a source thereof when a driving voltage is applied between a drain and the source thereof; first and second capacitors connected in series between the gate and the source of the driving transistor; a sampling transistor connected between the gate of the driving transistor and a predetermined signal line; a switching transistor connected to supply a potential of the signal line to a node between the first and second capacitors; and a light detection element connected between the gate of the driving transistor and the node between the first and second capacitors for supplying current of a current amount in accordance with an emitted light amount of the light emitting element. | 11-18-2010 |
| 20100289793 | Driving method for pixel circuit and display apparatus - Disclosed here is a driving method for a pixel circuit which includes a light emitting element, a driving transistor for applying current in response to a signal value applied between a gate and a source thereof to the light emitting element when a driving voltage is applied between a drain and the source thereof, and a holding capacitor connected between the gate and the source of the driving transistor for holding the input signal value, the driving method comprising steps carried out within a light emitting period of one cycle which includes a no-light emitting period and the light emitting period, the steps including a first step to a sixth step. | 11-18-2010 |
| 20100289829 | Display apparatus, light detection method and electronic apparatus - Disclosed herein is a display apparatus, including a plurality of pixel circuits disposed in a matrix at positions at which a plurality of signal lines and a plurality of scanning lines cross each other and individually including a light emitting element, a light emission driving section adapted to apply a signal value to each of the pixel circuits to cause the pixel circuit to emit light of a luminance corresponding to the signal value, and a light detection section including a light detection element which functions as a switching element by switching the light detection element between an on state and an off state and functions as a light sensor for detecting light from the light emitting element in the off state, the light detection section further including a detection signal outputting circuit formed in the light detection section for outputting light detection information from the light detection element. | 11-18-2010 |
| 20100289830 | Display device and display method - Disclosed herein is a display device including: a pixel circuit for generating a signal value for display by synthesizing signal values input within one horizontal period, and making display at a gradation corresponding to the signal value for display; a signal line disposed in a form of a column on a pixel array where the pixel circuit is arranged in a form of a matrix; a scanning line disposed in a form of a row on the pixel array; a signal line driving section configured to output signal values as a signal value to be supplied to each pixel circuit to the signal line within one horizontal period; and a scanning line driving section configured to sequentially introduce the signal values within one horizontal period, the signal values being generated in the signal line, into the pixel circuit in each row by driving the scanning line. | 11-18-2010 |
| 20100289831 | Display apparatus, method for controlling light detection operation - Disclosed herein is a display apparatus, including: pixel circuits disposed in a matrix at positions at which a plurality of signal lines and scanning lines cross each other and each including a light emitting element; a light emission driving section adapted to apply a signal value to each of the pixel circuits; a light detection section having a light sensor; a correction information production section adapted to detect the light detection information outputted to the light detection line and supply information for correction of the signal value corresponding to a result of the detection to the light emission driving section; and an initialization control section adapted to set all nodes of the detection signal outputting circuit to an equal potential within a period in which the light detection section does not carry out the light detection operation. | 11-18-2010 |
| 20100289832 | Display apparatus - A display apparatus includes: a pixel array including a plurality of pixel circuits disposed in a matrix and each including a light emitting element, a driving transistor for supplying current in response to a signal value applied between a gate and a source thereof to the light emitting element when a driving voltage is applied between a drain and the source thereof, and a holding capacitor connected between the gate and the source of the driving transistor for holding the input signal value, the driving transistor having a multi-gate structure wherein two or more transistors formed using an oxide semiconductor material are connected in series; and a light emission driving section. | 11-18-2010 |
| 20110001741 | Display device and electronic apparatus - A display device includes: plural pixel circuits; and a scanning circuit that supplies a scanning signal for supplying a video signal including information of a display target video to the plural pixel circuits and transitions potential of the scanning signal to off-potential halfway in a mobility correction period for correcting mobility, wherein each of the plural pixel circuits includes a storage capacitor for storing voltage equivalent to the video signal, a writing transistor that writes the video signal in the storage capacitor on the basis of the scanning signal and changes to a non-conduction state when the off-potential of the scanning signal is supplied, a driving transistor that outputs electric current corresponding to the voltage equivalent to the video signal written in the storage capacitor, and a light emitting element that emits light according to the electric current output from the driving transistor. | 01-06-2011 |
| 20110074753 | Display apparatus - A display apparatus includes a pixel array that has pixel units arranged in a matrix on the basis of a predetermined array pattern, each pixel unit having a light emitting element formed therein and having a structure configured to emit light generated from the light emitting element. In the structure of the pixel unit, a photodetection element which allows a current to flow in response to received light is provided to correspond to an inner area of a light emitting layer which forms the light emitting element. The pixel unit has a light incidence structure configured to allow the light, which is generated from the light emitting element, to be incident to the photodetection element. | 03-31-2011 |
| 20110074838 | DISPLAY DEVICE - A display device according to the present invention includes pixel units. Each of the pixel units is made up of N consecutive pixels. One of N (N≧3) colors including R (red), G (green) and B (blue) is assigned to each of the N pixels. Each of the N pixels includes a sampling transistor Ms, drive transistor Md, holding capacitor Cs and light-emitting element (organic light-emitting diode OLED). Of the N pixels, a specific color pixel that is susceptible to a dark dot (e.g., B) or that has the highest relative luminosity factor (e.g., G) has more sets of pixel circuit elements including the drive transistor Md, holding capacitor Cs and organic light-emitting diode OLED than other color pixels and has two or more sets thereof. | 03-31-2011 |
| 20110109610 | Display device and electronic apparatus - A display device includes: pixel circuits; a signal electric potential generating unit generating a first signal electric potential used for increasing the number of gray scales of luminance of light emission of the pixel circuits and a second signal electric potential equal to or higher than the first signal electric potential, based on a video signal; and a control signal generating unit generating a control signal used for supplying the first and second signal electric potentials to the pixel circuits. Each of the pixel circuits includes a holding capacitor used for maintaining a signal voltage corresponding to the second signal electric potential, a writing transistor writing the second signal electric potential to the holding capacitor based on the control signal after writing the first signal electric potential, a driving transistor outputting a signal current based on the signal voltage corresponding to mobility of the driving transistor at the first signal electric potential written by the writing transistor, and a light emitting device emitting light in accordance with the signal current. | 05-12-2011 |
| 20110109664 | Display device, method for driving the same, and electronic unit - A display device includes: a display section including a plurality of pixels each having a light emitting element and a pixel circuit; and a drive circuit performing display drive on the plurality of pixels through selecting each of the plurality of pixels to write a first signal voltage and a second signal voltage in this order into the selected pixel, the first and second signal voltages being provided based on a video signal. The drive circuit varies magnitude of each of the first and second signal voltages in accordance with a gray-scale value of the video signal, thereby performing gray-scale interpolation on a light emission luminance level for each of the light emitting elements. | 05-12-2011 |
| 20110164010 | Display apparatus, light detection method and electronic apparatus - Disclosed herein is a display apparatus including a plurality of pixel circuits, a displaying driving section, and a light amount information detection section. The pixel circuits are disposed in a matrix at positions at which a signal line and a plurality of scanning lines cross with each other. The displaying driving section applies a signal value to each pixel circuit and drives the scanning lines to cause the pixel circuit to emit light with a luminance according to the signal value to carry out image display. The light amount information detection section detects light amount information. Each pixel circuit includes a light emitting element, a driving transistor, a sampling transistor, and a switching transistor. Each pixel circuit can execute light detection operation of varying the gate potential of the driving transistor in response to a received light amount and outputting the source potential of the driving transistor. | 07-07-2011 |
| 20110164011 | Display apparatus, light detection method and electronic apparatus - Disclosed herein is a display apparatus, including pixel circuits disposed in a matrix at positions at which signal lines and scanning lines cross each other and individually including a light emitting element; a light emission driving section to apply a signal value to each of the pixel circuits to cause the circuit to emit light of a luminance; and a light detection section provided in each of the pixel circuits and including a sensor-switch serving element which functions by switching thereof between an on state and an off state and functions, in the off state thereof, as a light sensor for detecting light from the light emitting element of the pixel circuit, and a detection signal outputting transistor connected to a light detection line for outputting light detection information corresponding to a variation amount of current of the sensor-switch serving element in the off state to the light detection line. | 07-07-2011 |
| 20110169802 | Signal processing apparatus, display apparatus, electronic apparatus, signal processing method and program - A signal processing apparatus including a conversion efficiency degradation value calculation section adapted to calculate a conversion efficiency degradation value regarding degradation of a conversion efficiency when driving current supplied to a light emitting element in each of a plurality of pixel circuits is converted into a luminance based on information regarding degradation of the conversion efficiency produced in response to lapse of light emission time of the light emitting element; a current amount degradation value calculation section adapted to calculate a current amount degradation value regarding degradation of the driving current based on information regarding degradation of the driving current produced in response to lapse of the light emission time of the light emitting element; and a correction section adapted to correct a gradation value of an image signal to be inputted to the pixel circuit based on the conversion efficiency degradation value and the current amount degradation value. | 07-14-2011 |
| 20110193843 | Display device and electronic apparatus - A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels. | 08-11-2011 |
| 20110205205 | Pixel circuit, display device, method of driving the display device, and electronic unit - A display device includes: a pixel circuit including a light emitting element, first to third ,transistors, and a capacitive element; and a scan line. The pixel circuit is configured in such a manner that, one of a drain and a source of the first transistor is connected to a gate of the second transistor, the third transistor and the capacitive element are connected in series between a gate of the first transistor and the gate of the second transistor, and variation in scan line voltage is transmitted to the gate of the second transistor via the third transistor and the second capacitive element. | 08-25-2011 |
| 20110241729 | Inverter circuit and display - An inverter circuit includes: first to third transistors; and first and second capacity elements. The first transistor makes/breaks connection between an output terminal and a first voltage line in response to potential difference between an input terminal and the first voltage line or its correspondent. The second transistor makes/breaks connection between a second voltage line and the output terminal in response to potential difference between a gate of the second transistor and the output terminal or its correspondent. The third transistor makes/breaks connection between a gate of the second transistor and a third voltage line in response to potential difference between the input terminal and the third voltage line or its correspondent. The first and second capacity elements are inserted in series between the input terminal and the gate of the second transistor. A junction between the first and second capacity elements is connected to the output terminal. | 10-06-2011 |
| 20110241730 | Inverter circuit and display - An inverter circuit includes: first to third transistors; and first and second capacity elements. The first transistor makes/breaks connection between an output terminal and a first voltage line in response to potential difference between an input terminal and the first voltage line or its correspondent. The second transistor makes/breaks connection between a second voltage line and the output terminal in response to potential difference between a gate of the second transistor and the output terminal or its correspondent. The third transistor makes/breaks connection between a gate of the second transistor and a third voltage line in response to potential difference between the input terminal and the third voltage line or its correspondent. The first and second capacity elements are inserted in series between the input terminal and the gate of the second transistor. A junction between the first and second capacity elements is connected to the output terminal. | 10-06-2011 |
| 20110242069 | Inverter circuit and display device - An inverter circuit including: first to third transistors; first and second switches; and a first capacitive element. The first and second transistors are connected in series between a first voltage line and a second voltage line. The third transistor is connected between the second voltage line and a gate of the second transistor. The first and second switches are connected in series between a voltage supply line and a gate of the third transistor, and are turned on/off alternately to prevent the first and second switches from simultaneously turning ON. One end of the first capacitive element is connected to a node between the first and second switches. Off-state of the first transistor allows a predetermined fixed voltage to be supplied from the voltage supply line to the gate of the second transistor, via the first switch, the one end of the first capacitive element and the second switch. | 10-06-2011 |
| 20110242079 | Inverter circuit and display device - An inverter circuit includes: first and second transistors connected between first and second voltage lines; a fifth transistor having a drain connected to a fifth voltage line and a source connected to a gate of the second transistor; a first capacitive element between a gate and the source of the fifth transistor; a second capacitive element between a first input terminal and the source of the fifth transistor; and the third capacitive element between a second input terminal and the source of the fifth transistor. A first pulse signal into the first input terminal has a phase advanced more than a second pulse signal into the second input terminal. The second pulse signal is switched while the gate of the fifth transistor and the first voltage line are connected. The first pulse signal is switched while the gate of the fifth transistor and the first voltage line are unconnected. | 10-06-2011 |
| 20110242080 | Inverter circuit and display - An inverter circuit includes: a first transistor and a second transistor; a first switch and a second switch; and a first capacity element, in which the first and second transistors are connected in series between a first voltage line and a second voltage line, the first and second switches are connected in series between a supply voltage line and a gate of the second transistor, and are alternately turned on and off so as not to be turned on simultaneously, an end of the first capacity element is connected between the first switch and the second switch, and off-state of the first transistor allows a predetermined fixed voltage to be supplied from the supply voltage line to the gate of the second transistor through the first switch, the end of the first capacity element and the second switch. | 10-06-2011 |
| 20110242143 | Signal processing apparatus, display apparatus, electronic apparatus, signal processing method and program - Disclosed herein is a signal processing apparatus, including: a luminance degradation information production section adapted to produce luminance degradation information regarding degradation of a luminance in accordance with a temperature condition upon emission; a luminance degradation value calculation section adapted to calculate a luminance degradation value regarding degradation of the luminance for each pixel circuit; and a correction section adapted to correct the gradation value of an image signal to be inputted to the pixel circuit based on the luminance degradation value. | 10-06-2011 |
| 20110285692 | Display apparatus and driving method therefor, and electronic device - After a sampling transistor is turned ON at a first timing when a control signal has risen, during a sampling period from a second timing when a video signal has risen from a reference potential to a signal potential to a third timing when the control signal has fallen and is turned OFF, the sampling transistor samples and writes the signal potential in a holding capacitance, and negatively feeds back a current flowing into a drive transistor during the sampling period to the holding capacitance and applies mobility correction of the drive transistor on the written signal potential. A signal driver adjusts the second timing for the video signal supplied to respective signal lines to correct a backward shift of the third timing due to a transmission delay along a scanning line of the control signal output from the control scanner. | 11-24-2011 |
| 20120038620 | DISPLAY DEVICE, METHOD OF DRIVING SAME, AND ELECTRONIC DEVICE - A display device is disclosed. The display device includes: a pixel array portion and a driver portion for driving the pixel array portion. The pixel array portion has rows of scanning lines, columns of signal lines, pixels arranged in rows and columns at intersections of the scanning lines and the signal lines, and power lines disposed in a corresponding manner to the rows of the pixels. The driver portion includes a main scanner, a power-supply scanner, and a signal selector. Each of the pixels includes light-emitting devices, a sampling transistor, a driving transistor, a retaining capacitor. | 02-16-2012 |
| 20120044130 | DISPLAY APPARATUS AND ELECTRONIC APPARATUS - A display apparatus includes a pixel unit in which pixels are arranged in a matrix pattern; and a driving circuit for driving the pixel unit. Each of the pixels includes a signal level holding capacitor; a first transistor that is turned on/off in response to a writing signal and via which one end of the signal level holding capacitor is connected to a signal line; a second transistor having one end of the signal level holding capacitor connected to a gate thereof and the other end of the signal level holding capacitor connected to a source thereof; a current-driven self-light-emitting element whose cathode is held at a cathode potential and whose anode is connected to the source of the second transistor; a third transistor that is turned on/off in response to a driving pulse signal; and a fourth transistor that is turned on/off in response to a control signal. | 02-23-2012 |
| 20120068992 | DRIVING METHOD FOR ORGANIC ELECTROLUMINESCENCE LIGHT EMITTING SECTION - A driving method for an organic EL light emitting section achieves optimization of mobility correction for a transistor of a driving circuit in response to luminance. In a driving circuit formed from a driving transistor, an image signal writing transistor and a capacitor section having a pair of electrodes, a driving method carries out a pre-process, a threshold voltage cancellation process and a writing process. A variable correction voltage which relies upon the image signal voltage is applied to a first node of the capacitor and a voltage which is higher than a potential of the second node of the capacitor in the threshold voltage cancellation process is applied to the drain electrode of the driving transistor, between the threshold voltage cancellation process and the writing process, to raise the potential of the second node in response to a characteristic of the driving transistor. | 03-22-2012 |
| 20120081417 | DISPLAY APPARATUS AND DRIVING METHOD FOR DISPLAY APPARATUS - The present invention provides a display apparatus, including: a display section including a plurality of pixels disposed in a matrix and a plurality of signal lines and a plurality of scanning lines; and a horizontal driving circuit and a vertical driving circuit configured to drive the signal lines and the scanning lines of the display section to display an image on the display section; each of the pixels including a light emitting device; a signal level storage capacitor, a writing transistor, and a driving transistor. | 04-05-2012 |
| 20120112989 | DISPLAY APPARATUS AND METHOD FOR MAKING THE SAME - A pixel has an outer region extending linearly along a boundary with an adjacent pixel and an inner region extending along the inner side of the outer region. Wiring lines are arranged across the outer region and the inner region. An outer uneven zone is formed along the outer region and on a substrate due to level differences resulting from the presence of the wiring lines. Similarly, an inner uneven zone is formed along the inner region and on the substrate due to level differences resulting from the presence of the wiring lines. A pattern of a conductor film of which the wiring lines are made is formed properly such that recessed portions of the outer uneven zone are located directly behind their corresponding raised portions of the inner uneven zone, as viewed from inside the pixel. | 05-10-2012 |
| 20120133637 | DISPLAY DEVICE AND ELECTRONIC APPARATUS - Disclosed herein is a display device including a pixel array part configured to include scan lines disposed along rows, signal lines disposed along columns, and pixels that are disposed at intersections of the scan lines and the signal lines and arranged in a matrix, each of the pixels having at least a sampling transistor, a drive transistor, a switching transistor, a hold capacitor, and a light-emitting element; and a drive part configured to include a scanner and a driver, the driver supplying a video signal to the signal lines along the columns. | 05-31-2012 |
| 20120162164 | PIXEL CIRCUIT AND DISPLAY DEVICE - A pixel circuit able to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn able to reliably prevent deterioration of uniformity, wherein a source of a TFT serving as a drive transistor is connected to an anode of a light emitting element, a drain is connected to a power source potential, a capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT serving as a switch transistor and wherein pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts. | 06-28-2012 |
| 20120169794 | PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT - A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT | 07-05-2012 |
| 20120182281 | DISPLAY DEVICE AND ELECTRONIC APPARATUS - A sampling transistor in embodiments of the present invention is kept at the on-state with a time width shorter than one horizontal cycle, during the period from the rising of a control pulse supplied from a scanner to the falling of the control pulse, and samples a video signal Vsig from a signal line SL to write the video signal Vsig to a hold capacitor. A sampling transistor T | 07-19-2012 |
| 20120223925 | PHOTODETECTION CIRCUIT, PHOTODETECTION METHOD, DISPLAY PANEL, AND DISPLAY - There is provided a photodetection circuit and a photodetection method capable of obtaining high detection accuracy while reducing burn-in, and a display panel and a display including the above-described photodetection circuit. A photodetection circuit detecting incident light includes: a transistor provided between a fixed power supply line and a photodetection line; a photodiode provided between a gate of the transistor and a control line, and having a cathode directed toward the control line; a first capacitor connected, between the gate of the transistor and the control line, in parallel with the photodiode; and a second capacitor provided between the gate of the transistor and the fixed power supply line. | 09-06-2012 |
| 20120223978 | PIXEL CIRCUIT, DISPLAY PANEL, DISPLAY DEVICE AND ELECTRONIC UNIT - There is provided a pixel circuit capable of obtaining high-luminance while suppressing power consumption. Further, there are provided a display panel having the pixel circuit, and a display device including the display panel. Still further, there is provided an electronic unit including the display device. The pixel circuit includes a first transistor driving a light-emitting element, a plurality of holding capacitors connected in series between a gate and a source of the first transistor, a second transistor provided between a first signal line and the gate of the first transistor, and a third transistor provided between a second signal line and one of junctions of the holding capacitors. | 09-06-2012 |
| 20120235185 | DISPLAY - Disclosed herein is a display including an acceptor substrate having thereon a red light-emitting element column, a green light-emitting element column, and a blue light-emitting element column that are arranged along a row direction and are each obtained by arranging rectangular organic light-emitting elements for generating light of one of red, green, and blue along a longitudinal direction of the organic light-emitting elements. | 09-20-2012 |
| 20120249517 | METHOD OF DRIVING ORGANIC ELECTROLUMINESCENCE EMISSION PORTION - A pixel circuit and driving method are disclosed, wherein the pixel circuit comprises a first transistor, a second transistor, and a capacitor. The first transistor is connected between a power source and a light emission portion, and the second transistor is connected to a data line. The capacitor is initialized according to a potential, and a video signal is applied from the data line to the capacitor through the second transistor. For driving, an initialization voltage is applied to the data line and the video signal is supplied to the data line, with the second transistor being turned ON prior to applying the initialization voltage to the data line. | 10-04-2012 |
| 20120319929 | DISPLAY APPARATUS AND METHOD FOR MAKING THE SAME - A pixel has an outer region extending linearly along a boundary with an adjacent pixel and an inner region extending along the inner side of the outer region. Wiring lines are arranged across the outer region and the inner region. An outer uneven zone is formed along the outer region and on a substrate due to level differences resulting from the presence of the wiring lines. Similarly, an inner uneven zone is formed along the inner region and on the substrate due to level differences resulting from the presence of the wiring lines. A pattern of a conductor film of which the wiring lines are made is formed properly such that recessed portions of the outer uneven zone are located directly behind their corresponding raised portions of the inner uneven zone, as viewed from inside the pixel. | 12-20-2012 |
| 20120319930 | DISPLAY APPARATUS AND FABRICATION METHOD FOR DISPLAY APPARATUS - Disclosed herein is a display apparatus, including: a plurality of pixel circuits arrayed in a matrix; a driving wiring line to which the pixel circuits are connected; and a plurality of signal lines wired so as to cross with the driving wiring line and having the pixel circuits connected; the signal lines being wired in parallel to each other. | 12-20-2012 |
| 20130069851 | EL DISPLAY PANEL, ELECTRONIC APPARATUS AND EL DISPLAY PANEL DRIVING METHOD - An electro luminescence display panel adopting an active-matrix driving method and including pixel circuits, a capacitor control line, a coupling capacitor, and a pulse voltage source. | 03-21-2013 |
| 20130099222 | DISPLAY, METHOD FOR DRIVING DISPLAY, AND ELECTRONIC APPARATUS - Disclosed herein is a display including: a pixel array part configured to include pixels that are arranged in a matrix and each have an electro-optical element, a write transistor for writing a video signal, a drive transistor for driving the electro-optical element based on the video signal written by the write transistor, and a holding capacitor connected between gate and source of the drive transistor, wherein the holding capacitor includes a first electrode, a second electrode disposed to face one surface of the first electrode for forming a first capacitor, and a third electrode disposed to face the other surface of the first electrode for forming a second capacitor, and the first capacitor and the second capacitor are connected in parallel to each other electrically. | 04-25-2013 |
| 20130100104 | DISPLAY, METHOD FOR DRIVING DISPLAY, AND ELECTRONIC APPARATUS - Disclosed herein is a display including: a pixel array part configured to include pixels that are arranged in a matrix and each have an electro-optical element, a write transistor for writing a video signal, a drive transistor for driving the electro-optical element based on the video signal written by the write transistor, and a holding capacitor connected between gate and source of the drive transistor, wherein the holding capacitor includes a first electrode, a second electrode disposed to face one surface of the first electrode for forming a first capacitor, and a third electrode disposed to face the other surface of the first electrode for forming a second capacitor, and the first capacitor and the second capacitor are connected in parallel to each other electrically. | 04-25-2013 |
| 20130120339 | BUFFER CIRCUIT, SCANNING CIRCUIT, DISPLAY DEVICE, AND ELECTRONIC EQUIPMENT - A buffer circuit includes a first transistor circuit having a first conductivity type transistor, a second transistor circuit having a second conductivity type transistors, in which the first and second transistor circuits are serially connected between a first fixed power supply and a second fixed power supply, and input terminals and output terminals of each of the first and second transistor circuits are connected in common respectively, in which at least one transistor circuit of the first transistor circuit and the second transistor circuit is a double gate transistor, and in which wherein a switch element, when any one transistor circuit of the first and the second transistor circuits is in an operating state, is included to supply a voltage of a third fixed power supply to a common connection node of the double gate transistor of the other transistor circuit. | 05-16-2013 |
| 20130120347 | LEVEL SHIFTER CIRCUIT, SCANNING CIRCUIT, DISPLAY DEVICE AND ELECTRONIC EQUIPMENT - A level shifter circuit, wherein a first and a second transistor circuit are connected serially, a third and a fourth transistor circuit are connected serially; a first input voltage is applied to the second transistor circuit and a second input voltage is applied to the fourth transistor circuit; an input terminal of the first transistor circuit is connected to an output terminal of the third and the fourth transistor circuits, and an input terminal of the third transistor circuit is connected to an output terminal of the first and the second transistor circuits; two transistor circuits of at least one side of two transistor circuits of a first fixed power source side and two transistor circuits of a second fixed power source side are configured of double gate transistors; and the level shifter circuit has a switch element for applying a voltage to a common connection node. | 05-16-2013 |
| 20130120348 | DRIVING METHOD FOR ORGANIC ELECTROLUMINESCENCE LIGHT EMITTING SECTION - A driving method for an organic EL light emitting section is provided which achieves optimization of a mobility correction process for a transistor of a driving circuit in response to luminance. The light emitting section may include a driving circuit with a driving transistor, an image signal writing transistor and a capacitor section having a pair of electrodes (corresponding to a first node ND | 05-16-2013 |
| 20130127370 | EL DISPLAY PANEL MODULE, EL DISPLAY PANEL, INTEGRATED CIRCUIT DEVICE, ELECTRONIC APPARATUS AND DRIVING CONTROLLING METHOD - Disclosed herein is an EL display panel module, including: a pixel array section including a panel serving as a substrate, and a plurality of pixels disposed in a matrix on the panel and each including a pixel circuit, and a light emitting region; and a driving circuit for driving the pixel circuits such that a threshold value correction operation is carried out commonly for plural ones of the pixel circuits which are connected to each signal line and writing of a signal potential corresponding to a gradation value is executed time-sequentially for the individual pixel circuits, the driving circuit applying a reset potential lower than a reference potential for the threshold value correction to the plural ones of the pixel circuits before first writing of the signal potential after the threshold value correction operation is completed; the pixel array section and the driving circuit being mounted on the same substrate. | 05-23-2013 |
| 20130127373 | DISPLAY DEVICE - A display device including a pixel array having a plurality of pixels arranged in a matrix form, each of the pixels including a sampling transistor configured to sample a data potential from a video signal line which is insulated from and intersects a control line in response to the change in potential of the control line, and a light-emitting element configured to emit light at the brightness commensurate with the magnitude of the post-sampling data potential. | 05-23-2013 |
| 20130127819 | DISPLAY DEVICE, METHOD OF LAYING OUT WIRING IN DISPLAY DEVICE, AND ELECTRONIC DEVICE - A display device includes: a pixel array section having pixels arranged in a form of a matrix on a display panel; a first terminal group disposed on the display panel so as to correspond to each control line of a first control line group arranged in each pixel row of the pixel array section; a first wiring group for electrically connecting each terminal of the first terminal group to each control line of the first control line group; a second terminal group disposed on the display panel for a second control line group arranged in each pixel row of the pixel array section with a plurality of control lines as a unit; and a second wiring group for electrically connecting each terminal of the second terminal group to each control line of the second control line group through parts between the terminals of the first terminal group. | 05-23-2013 |
| 20130135280 | DISPLAY DEVICE, DRIVING METHOD THEREOF, AND ELECTRONIC APPARATUS - A display device includes pixel array unit and a driver unit. A sampling transistor samples a signal potential to hold the signal potential in a holding capacitor. A driver transistor flows a drive current to a light emitting element in accordance with the signal potential held. A main scanner in the driver unit outputs the control signal having a shorter pulse width than the time period to the scan line to make the sampling transistor conductive during a time period while the signal line is at the signal potential, thereby adding the signal potential a correction for a mobility of the driver transistor when the signal potential is held in the holding capacitor. | 05-30-2013 |
| 20130249878 | DISPLAY APPARATUS AND ELECTRONIC APPARATUS - Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel. | 09-26-2013 |
| 20130265214 | ELECTROLUMINESCENT DISPLAY PANEL AND ELECTRONIC APPARATUS - An electroluminescent display panel has pixel circuits for an active matrix driving system. At least one of the pixel circuits has a thin-film transistor in which a portion of a pattern of a metal wiring material above a channel layer of the thin-film transistor is disposed to shield the channel region of the thin-film transistor. | 10-10-2013 |
| 20130271435 | PIXEL CIRCUIT, ACTIVE MATRIX APPARATUS AND DISPLAY APPARATUS - A pixel circuit having a function of compensating for characteristic variation of an electro-optical element and threshold voltage variation of a transistor is formed from a reduced number of component elements. An input signal is sampled from a signal line so as to be held in a holding capacitor. The threshold voltage of the drive transistor is imparted to the holding capacitor in order to cancel an influence of the threshold voltage. | 10-17-2013 |
| 20130321250 | PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT - A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT | 12-05-2013 |
| 20130321383 | PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT - A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT | 12-05-2013 |
| 20130341603 | DISPLAY - Disclosed herein is a display including an acceptor substrate having thereon a red light-emitting element column, a green light-emitting element column, and a blue light-emitting element column that are arranged along a row direction and are each obtained by arranging rectangular organic light-emitting elements for generating light of one of red, green, and blue along a longitudinal direction of the organic light-emitting elements. | 12-26-2013 |
| 20140028642 | DISPLAY UNIT - A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode. | 01-30-2014 |
| 20140035973 | DISPLAY APPARATUS AND ELECTRONIC APPARATUS - Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel. | 02-06-2014 |
| 20140049530 | DISPLAY DEVICE AND ELECTRONIC APPARATUS - A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels. | 02-20-2014 |
| 20140054575 | DISPLAY UNIT - A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity. | 02-27-2014 |
| 20140055432 | DISPLAY DEVICE - Disclosed herein is a display device that allows a vertical scanning line to be shared between a plurality of rows without increasing the number of control lines or control signals, the display device including pixel circuits; vertical scanning lines; and horizontal scanning lines. | 02-27-2014 |
| 20140062844 | DISPLAY DEVICE AND ELECTRONIC APPARATUS - There is provided a display device including pixel circuits which are arranged and each of which includes a driving transistor to drive an electro-optical element and a capacitor connected between a gate electrode and one source/drain electrode of the driving transistor. The driving transistor is configured by stacking the gate electrode and the source/drain electrode and a peripheral portion of the gate electrode is covered by the source/drain electrode. | 03-06-2014 |
| 20140125566 | ELECTROLUMINESCENT DISPLAY PANEL AND ELECTRONIC APPARATUS - An electroluminescent display panel has pixel circuits for an active matrix driving system. At least one of the pixel circuits has a thin-film transistor in which a portion of a pattern of a metal wiring material above a channel layer of the thin-film transistor is disposed to shield the channel region of the thin-film transistor. | 05-08-2014 |
| 20140125717 | DISPLAY APPARATUS, DRIVING METHOD THEREOF, AND ELECTRONIC SYSTEM - A display apparatus includes: a pixel array section including a row of first and second scanning lines, a column of signal lines, and pixels in a matrix, each of the pixels disposed at an intersection of both of the lines; and a drive section. The drive section performs line progressive scanning on the pixels. The pixel includes a light emitting device, a sampling transistor, a driving transistor, a switching transistor, and a holding capacitor. The sampling transistor samples a video signal on the signal line to hold the signal potential in the holding capacitor, the driving transistor makes the light emitting device conductive to be in a luminous state in accordance with the held signal potential, and the switching transistor becomes ON in accordance with the control signal supplied in advance of the sampling of the video signal to change the light emitting device to a non-luminous state. | 05-08-2014 |
| 20140183510 | DISPLAY UNIT HAVING AN ARRANGEMENT OF A RETENTIVE CAPACITOR AND AN EL DEVICE OF EACH PIXEL WITH RESPECT TO ADJACENT PIXEL FOR LOW LIGHT LEAKAGE AMONG ADJACENT PIXELS - A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity. | 07-03-2014 |
| 20140246662 | DISPLAY APPARATUS AND ELECTRONIC APPARATUS - Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel. | 09-04-2014 |
| 20140247204 | PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT - A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT | 09-04-2014 |
| 20140327665 | PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT - A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT | 11-06-2014 |
| 20140333212 | PIXEL CIRCUIT AND DISPLAY DEVICE - A pixel circuit able to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn able to reliably prevent deterioration of uniformity, wherein a source of a TFT serving as a drive transistor is connected to an anode of a light emitting element, a drain is connected to a power source potential, a capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT serving as a switch transistor and wherein pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts. | 11-13-2014 |
| 20140340378 | ELECTROLUMINESCENT DISPLAY PANEL AND ELECTRONIC DEVICE - An EL display panel including: a pixel array section in which EL display elements whose light emission state is controlled by an active matrix driving system are arranged in a form of a matrix; a first writing control line driving section and a second writing control line driving section configured to drive each writing control line from both sides of the pixel array section; and a first power supply line driving section and a second power supply line driving section configured to drive a power supply line disposed along a direction of a horizontal line from both sides of the pixel array section, the first power supply line driving section and the second power supply line driving section being respectively arranged between the first writing control line driving section and the pixel array section and between the second writing control line driving section and the pixel array section. | 11-20-2014 |
| 20140346490 | DISPLAY UNIT - A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity. | 11-27-2014 |
| 20140347337 | DISPLAY DEVICE AND ELECTRONIC APPARATUS - A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels. | 11-27-2014 |
| 20150042232 | LEVEL SHIFTER CIRCUIT, SCANNING CIRCUIT, DISPLAY DEVICE AND ELECTRONIC EQUIPMENT - A level shifter circuit, wherein a first and a second transistor circuit are connected serially, a third and a fourth transistor circuit are connected serially; a first input voltage is applied to the second transistor circuit and a second input voltage is applied to the fourth transistor circuit; an input terminal of the first transistor circuit is connected to an output terminal of the third and the fourth transistor circuits, and an input terminal of the third transistor circuit is connected to an output terminal of the first and the second transistor circuits; two transistor circuits of at least one side of two transistor circuits of a first fixed power source side and two transistor circuits of a second fixed power source side are configured of double gate transistors; and the level shifter circuit has a switch element for applying a voltage to a common connection node. | 02-12-2015 |
| 20150054802 | BUFFER CIRCUIT, SCANNING CIRCUIT, DISPLAY DEVICE, AND ELECTRONIC EQUIPMENT - A buffer circuit includes a first transistor circuit having a first conductivity type transistor, a second transistor circuit having a second conductivity type transistors, in which the first and second transistor circuits are serially connected between a first fixed power supply and a second fixed power supply, and input terminals and output terminals of each of the first and second transistor circuits are connected in common respectively, in which at least one transistor circuit of the first transistor circuit and the second transistor circuit is a double gate transistor, and in which wherein a switch element, when any one transistor circuit of the first and the second transistor circuits is in an operating state, is included to supply a voltage of a third fixed power supply to a common connection node of the double gate transistor of the other transistor circuit. | 02-26-2015 |
| 20150070782 | LENS BARREL AND IMAGING APPARATUS - A lens barrel includes a first barrel which rotates around an optical axis; and a second barrel which supports the first barrel to slide freely around the optical axis and to be movable in an optical axis direction. One of the barrels includes a cam follower, and a cam groove is formed in the other. When the first barrel rotates, the cam follower slides in the cam groove. The cam groove includes first and second sliding portions, and an inclination angle of the first sliding portion to the optical axis is smaller than that of the second sliding portion. When transitioning from the collapsed to the photographing state, the cam follower slides on the first sliding portion and the first barrel extends. When transitioning from the photographing to the collapsed state, the cam follower slides on the second sliding portion and the first barrel is incorporated in the second barrel. | 03-12-2015 |
| 20150084940 | DISPLAY APPARATUS AND FABRICATION METHOD FOR DISPLAY APPARATUS - Disclosed herein is a display apparatus, including: a plurality of pixel circuits arrayed in a matrix; a driving wiring line to which the pixel circuits are connected; and a plurality of signal lines wired so as to cross with the driving wiring line and having the pixel circuits connected; the signal lines being wired in parallel to each other. | 03-26-2015 |
