Patent application number | Description | Published |
20110099747 | ROBOT CLEANER - A robot cleaner comprises a main body having a suction port at a bottom surface thereof, a pair of wheel assemblies disposed at both sides of the main body, and configured to move the main body, a dust box mounted to contact the bottom surface of the main body, and configured to collect dust sucked through the suction port, a filter unit configured to filter air discharged from the dust box, a suction fan configured to form a suction pressure on a suction channel defined by the suction port, the dust box and the filter unit, and a battery disposed at a side of the dust box. | 05-05-2011 |
20150288197 | Charger Having Battery Diagnostic Function and Control Method Thereof - The present invention relates to a charger capable of diagnosing a lifespan of a battery when the battery is being charged, and a control method thereof. The charger includes a converter applying one of a perturbation voltage and a perturbation current to a battery, and a digital signal processor transmitting a perturbation signal in which an AC signal is added to a DC signal via the converter, measuring an output response of the battery, calculating an impedance spectrum according to the output response of the battery, calculating an impedance parameter by selecting an equivalent circuit according to the impedance spectrum, and estimating a lifespan of the battery by comparing the calculated impedance parameter of the battery with a predetermined impedance parameter of a reference battery. | 10-08-2015 |
20150372513 | MULTIPLE BATTERY CHARGER AND METHOD FOR CONTROLLING THE SAME - A multiple battery charger is provided. The multiple battery charger includes an input unit configured to receive or block power from a power supply unit, an output unit including a plurality of output terminals, wherein the plurality of output terminals are commonly connected to the input unit and charge a plurality of batteries, and wherein each of the plurality of output terminals includes at least one of a plurality of second switches for a selective receipt of the power from the input unit and the plurality of output terminals are controlled in a time division multiple control manner, and a switching control unit configured to transmit a pulse width modulation signal to the input unit and the output unit so as to independently control the power applied to the plurality of batteries. Accordingly, a plurality of different kinds of batteries and the same kind of batteries in which charge states are different can be simultaneously charged. | 12-24-2015 |
20150377974 | BATTERY STATE ESTIMATION METHOD AND SYSTEM USING DUAL EXTENDED KALMAN FILTER, AND RECORDING MEDIUM FOR PERFORMING THE METHOD - Provided are a battery state estimation method and system and a recording medium for performing the method. The battery state estimation is provided by applying an ARX model and a dual extended Kalman filter. A battery state estimation system estimates a parameter of a battery model using an ARX model and estimates a battery state by applying the estimated parameter of the battery model to a dual extended Kalman filter including a state filter used to estimate a state of charge (SOC) and a weight filter used to estimate a state of health (SOH) of the battery. | 12-31-2015 |
20150381067 | MULTIPLE OUTPUT CONVERTER AND METHOD FOR CONTROLLING THE SAME - A multiple output converter is provided. The multiple output converter includes a power conversion circuit and a switching control unit. The power conversion circuit includes an input unit having at least one first switch, a transformer unit configured to convert a magnitude of power from the input unit, an output unit having a plurality of output terminals, which are configured to receive the power from the transformer unit, and a second switch unit having a plurality of second switches, wherein each of the plurality of second switches is installed in each of the plurality of output terminals, respectively, and is controlled in a time division multiple control manner. The switching control is configured to transmit a pulse width modulation signal to the at least one first switch and the plurality of second switches for controlling the at least one first switch and the plurality of second switches in the time division multiple control manner. | 12-31-2015 |
20160006061 | POWER CONVERTER FOR FUEL CELL AND METHOD FOR CONTROLLING THE SAME - A power converter for a fuel cell is provided. The power converter includes a boost converter connected to the fuel cell and configured to control a load voltage at a predetermined magnitude in a normal operation mode and to induce an output response by applying a predetermined perturbation current to the fuel cell in a diagnosis mode, and a digital signal processor configured to extract an impedance parameter by detecting the output response of the fuel cell in the diagnosis mode, and predict a lifespan of the fuel cell according to the impedance parameter. The normal operation mode is configured to supply a voltage in response to a change of a load and the diagnosis mode is configured to predict the lifespan of the fuel cell. | 01-07-2016 |
Patent application number | Description | Published |
20130141650 | IMAGE DISPLAY APPARATUS, SERVER, AND METHODS FOR OPERATING THE SAME - An image display apparatus, a server, and methods for operating the same are disclosed. The method for operating an image display apparatus includes entering channel scan mode, receiving a broadcast signal of a detected broadcast channel in the channel scan mode, extracting, in the presence of an image representing a channel name in a broadcast image of the broadcast signal, the image representing a channel name from the broadcast image, determining channel number information and channel name information about the broadcast channel based on the extracted image, and storing the channel number information and the channel name information about the broadcast channel in a channel map. | 06-06-2013 |
20130145395 | IMAGE DISPLAY APPARATUS AND METHODS FOR OPERATING THE SAME - An image display apparatus, a server, and methods for operating the same are disclosed. The method for operating an image display apparatus includes displaying a broadcast program list listing a plurality of broadcast programs, receiving, upon selection of one of the plurality of broadcast programs, a broadcast signal of the selected broadcast program, and displaying the received broadcast program. The broadcast program list includes real-time viewer rating information, a thumbnail image, and a name for each of the plurality of broadcast programs. | 06-06-2013 |
20150242065 | METHOD AND APPARATUS FOR DISPLAYING SCREEN ON ELECTRONIC DEVICE - Disclosed is a screen display method, including recognizing a request for displaying a size-adjusted screen, displaying the size-adjusted screen on one region of a display unit in response to the request, and displaying an auxiliary screen on an outside region of the size-adjusted screen. | 08-27-2015 |
20150373411 | METHOD FOR CONTROLLING BROADCAST RECEIVING DEVICE - A method for controlling a broadcast receiving device includes receiving a first electronic program guide (EPG) via a broadcasting network via and a second EPG via the Internet, and combining first broadcast-related information generated from the first EPG and second broadcast-related information generated from the second EPG to generate and output third broadcast-related information. | 12-24-2015 |
Patent application number | Description | Published |
20100183902 | Magnetic memory devices and methods of manufacturing such magnetic memory devices - A magnetic memory device may include a first ferromagnetic layer, a second ferromagnetic layer, and a tunnel barrier layer arranged on a substrate. The tunnel barrier layer may include a crystal structure and may be arranged between the first ferromagnetic layer and the second ferromagnetic layer. At least the first ferromagnetic layer may include a first layer in contact with the tunnel barrier layer and a second layer in contact with the first layer, and an orientation of the first layer with respect to the tunnel barrier layer may be greater than an orientation of the second layer with respect to the tunnel barrier layer. | 07-22-2010 |
20110062537 | Magnetic Memory Devices - A magnetic memory device may include a first vertical magnetic layer, a non-magnetic layer on the first vertical magnetic layer, and a first junction magnetic layer on the non-magnetic layer, with the non-magnetic layer being between the first vertical magnetic layer and the first junction magnetic layer. A tunnel barrier may be on the first junction magnetic layer, with the first junction magnetic layer being between the non-magnetic layer and the tunnel barrier. A second junction magnetic layer may be on the tunnel barrier with the tunnel barrier being between the first and second junction magnetic layers, and a second vertical magnetic layer may be on the second junction magnetic layer with the second junction magnetic layer being between the tunnel barrier and the second vertical magnetic layer. | 03-17-2011 |
20110260272 | Magnetic Memory Device - A magnetic memory device is provided. The magnetic memory device includes a first vertical magnetic layer and a second vertical magnetic layer on a substrate, a tunnel barrier layer between the first vertical magnetic layer and the second vertical magnetic layer, and an exchange-coupling layer between a first sub-layer of the first vertical magnetic layer and a second sub-layer of the first vertical magnetic layer. | 10-27-2011 |
20110303996 | MAGNETIC MEMORY DEVICES - A magnetic memory device includes a reference magnetic layer having a fixed magnetization direction, a tunnel barrier layer on the reference magnetic layer, a free layer having a variable magnetization direction on the tunnel barrier layer opposite the reference magnetic layer, and a magnetization reversal auxiliary layer on the free layer. The magnetization reversal auxiliary layer has a fixed magnetization direction that is substantially perpendicular to a plane along an interface between the tunnel barrier layer and the reference layer. The magnetization reversal auxiliary layer may be directly on the free layer, or an exchange coupling control layer may be provided between the magnetization reversal auxiliary layer and the free layer. | 12-15-2011 |
20120018825 | MAGNETIC MEMORY DEVICES, ELECTRONIC SYSTEMS AND MEMORY CARDS INCLUDING THE SAME, METHODS OF MANUFACTURING THE SAME, AND METHODS OF FORMING A PERPENDICULAR MAGNETIC FILM OF THE SAME - Magnetic memory devices, electronic systems and memory cards including the same, methods of manufacturing the same, and methods of forming perpendicular magnetic films are provided. The magnetic memory device may include a seed pattern on a substrate having a first crystal structure, a perpendicular magnetic pattern on the seed pattern having a second crystal structure, and an interlayer pattern between the seed pattern and the perpendicular magnetic pattern. The interlayer pattern may reduce a stress caused by a difference between horizontal lattice constants of the first and the second crystal structures. | 01-26-2012 |
20120023386 | Magnetic Memory Devices, Electronic Systems And Memory Cards Including The Same, Methods Of Manufacturing The Same, And Methods Of Controlling A Magnetization Direction Of A Magnetic Pattern - Provided are magnetic memory devices, electronic systems and memory cards including the same, methods of manufacturing the same, and methods of controlling a magnetization direction of a magnetic pattern. In a magnetic memory device, atomic-magnetic moments non-parallel to one surface of a free pattern increase in the free pattern. Therefore, critical current density of the magnetic memory device may be reduced, such that power consumption of the magnetic memory device is reduced or minimized and/or the magnetic memory device is improved or optimized for a higher degree of integration. | 01-26-2012 |
20120112298 | MAGNETIC MEMORY DEVICES - A magnetic memory device includes a magnetic pattern, a reference pattern, a tunnel barrier pattern interposed between the magnetic pattern and the reference pattern, and at least one magnetic segment disposed inside the magnetic pattern. The magnetic segment(s) is/are of magnetic material whose direction of magnetization has at least a component which lies in a plane perpendicular to the magnetization direction of the magnetic pattern. | 05-10-2012 |
20120135544 | Method of Fabricating Semiconductor Device and Apparatus for Fabricating the Same - Provided is a method of fabricating a semiconductor device. The method of fabricating a semiconductor device includes forming a plurality of magnetic memory patterns spaced apart from each other on a substrate, with each of the magnetic memory patterns including a free pattern, a tunnel barrier pattern, and a reference pattern which are stacked on the substrate, performing a magnetic thermal treatment process on the magnetic memory patterns, and forming a passivation layer on the magnetic memory patterns. The magnetic thermal treatment process and the forming of the passivation layer are simultaneously performed in one reactor. | 05-31-2012 |
20130234269 | MAGNETIC MEMORY DEVICES INCLUDING MAGNETIC LAYERS SEPARATED BY TUNNEL BARRIERS - A magnetic memory device may include a first vertical magnetic layer, a non-magnetic layer on the first vertical magnetic layer, and a first junction magnetic layer on the non-magnetic layer, with the non-magnetic layer being between the first vertical magnetic layer and the first junction magnetic layer. A tunnel barrier may be on the first junction magnetic layer, with the first junction magnetic layer being between the non-magnetic layer and the tunnel barrier. A second junction magnetic layer may be on the tunnel barrier with the tunnel barrier being between the first and second junction magnetic layers, and a second vertical magnetic layer may be on the second junction magnetic layer with the second junction magnetic layer being between the tunnel barrier and the second vertical magnetic layer. | 09-12-2013 |
20130285178 | Magnetic Memory Device - A magnetic memory device is provided. The magnetic memory device includes a first vertical magnetic layer and a second vertical magnetic layer on a substrate, a tunnel barrier layer between the fist vertical magnetic layer and the second vertical magnetic layer, and an exchange-coupling layer between a first sub-layer of the first vertical magnetic layer and a second sub-layer of the first vertical magnetic layer. | 10-31-2013 |
20140021566 | MAGNETIC DEVICE AND METHOD OF FABRICATING THE SAME - Provided are a magnetic memory device and a method of fabricating the same. The device may include a magnetic tunnel junction including a lower magnetic structure, an upper magnetic structure, and a tunnel barrier interposed therebetween. The tunnel barrier may have a width greater than that of the lower magnetic structure. | 01-23-2014 |
20140183674 | MAGNETIC MEMORY DEVICES HAVING A UNIFORM PERPENDICULAR NONMAGNETIC RICH ANTISOTROPY ENHANCED PATTERN - Provided are magnetic memory devices, electronic systems and memory cards including the same, methods of manufacturing the same, and methods of controlling a magnetization direction of a magnetic pattern. In a magnetic memory device, atomic-magnetic moments non-parallel to one surface of a free pattern increase in the free pattern. Therefore, critical current density of the magnetic memory device may be reduced, such that power consumption of the magnetic memory device is reduced or minimized and/or the magnetic memory device is improved or optimized for a higher degree of integration. | 07-03-2014 |
20140191346 | MAGNETIC MEMORY DEVICES INCLUDING MAGNETIC LAYERS SEPARATED BY TUNNEL BARRIERS - A magnetic memory device may include a first vertical magnetic layer, a non-magnetic layer on the first vertical magnetic layer, and a first junction magnetic layer on the non-magnetic layer, with the non-magnetic layer being between the first vertical magnetic layer and the first junction magnetic layer. A tunnel barrier may be on the first junction magnetic layer, with the first junction magnetic layer being between the non-magnetic layer and the tunnel barrier. A second junction magnetic layer may be on the tunnel barrier with the tunnel barrier being between the first and second junction magnetic layers, and a second vertical magnetic layer may be on the second junction magnetic layer with the second junction magnetic layer being between the tunnel barrier and the second vertical magnetic layer. | 07-10-2014 |
20140339504 | MAGNETIC MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAME - A magnetic memory device and method of manufacturing the same are provided. The magnetic memory device can include a first vertical magnetic pattern on a substrate, a second vertical magnetic pattern on the first vertical magnetic pattern, and a tunnel barrier pattern disposed between the first vertical magnetic pattern and the second vertical magnetic pattern. The first vertical magnetic pattern can include a first pattern on the substrate, a second pattern on the first pattern, and an exchange coupling pattern between the first pattern and the second pattern. The first pattern can comprise an amorphous magnetic substance and a component comprising at least one of platinum, palladium, and nickel. | 11-20-2014 |
20140353784 | MAGNETIC MEMORY DEVICE - A magnetic memory device is provided. The magnetic memory device includes a first vertical magnetic layer and a second vertical magnetic layer on a substrate, a tunnel barrier layer between the first vertical magnetic layer and the second vertical magnetic layer, and an exchange-coupling layer between a first sub-layer of the first vertical magnetic layer and a second sub-layer of the first vertical magnetic layer. | 12-04-2014 |
20150008549 | MAGNETIC MEMORY DEVICES HAVING JUNCTION MAGNETIC LAYERS AND BUFFER LAYERS AND RELATED METHODS - A magnetic memory device may include a free magnetic structure, a tunnel barrier layer, and a pinned magnetic structure wherein the tunnel barrier layer is between the free magnetic structure and the pinned magnetic structure. The pinned magnetic structure may include first and second pinned layers and an exchange coupling layer between the first and second pinned layers. The second pinned layer may be between the first pinned layer and the tunnel barrier layer, and the second pinned layer may include a junction magnetic layer and a buffer layer between the junction magnetic layer and the exchange coupling layer. The buffer layer may include a layer of a material including a non-magnetic metallic element. Related devices, structures, and methods are also discussed. | 01-08-2015 |
20150035095 | MAGNETIC MEMORY DEVICES HAVING A PERPENDICULAR MAGNETIC TUNNEL JUNCTION - A magnetic memory device may include a free magnetic structure and a reference magnetic structure that are separated from each other by a tunnel barrier. The free magnetic structure may include an exchange-coupling layer, and first and second free layers that are separated from each other by the exchange-coupling layer. The first free layer may be provided between the second free layer and the tunnel barrier. A thickness of the first free layer may be greater than a first maximum anisotropy thickness, being the thickness at which the first free layer has maximum perpendicular anisotropy. A thickness of the second free layer may be smaller than a second maximum anisotropy thickness, being the thickness at which the second free layer has maximum perpendicular anisotropy. A magnetic tunnel junction having two free layers with different thicknesses can enable a magnetic memory device that has increased MR ratio and reduced switching current. | 02-05-2015 |
20150104883 | SEMICONDUCTOR DEVICES AND METHODS FOR FABRICATING THE SAME - A method of fabricating a semiconductor device includes providing a wafer in a chamber of a point-cusp magnetron physical vapor deposition (PCM-PVD) apparatus, the chamber including a metal target. The method further includes providing an inert gas and a reactive gas in the chamber and forming an amorphous conductive layer on the wafer by reacting the reactive gas with a metal atom separated from the metal target by the inert gas. | 04-16-2015 |
20150115380 | MAGNETIC MEMORY DEVICE - A magnetic memory device is provided. The magnetic memory device includes a first vertical magnetic layer and a second vertical magnetic layer on a substrate, a tunnel barrier layer between the first vertical magnetic layer and the second vertical magnetic layer, and an exchange-coupling layer between a first sub-layer of the first vertical magnetic layer and a second sub-layer of the first vertical magnetic layer. | 04-30-2015 |
20150145081 | MAGNETIC MEMORY DEVICES HAVING A UNIFORM PERPENDICULAR NONMAGNETIC RICH ANTISOTROPY ENHANCED PATTERN - Provided are magnetic memory devices, electronic systems and memory cards including the same, methods of manufacturing the same, and methods of controlling a magnetization direction of a magnetic pattern. In a magnetic memory device, atomic-magnetic moments non-parallel to one surface of a free pattern increase in the free pattern. Therefore, critical current density of the magnetic memory device may be reduced, such that power consumption of the magnetic memory device is reduced or minimized and/or the magnetic memory device is improved or optimized for a higher degree of integration. | 05-28-2015 |
Patent application number | Description | Published |
20100194346 | PROTECTION CIRCUIT FOR BATTERY PACK AND BATTERY PACK INCLUDING THE SAME - A protection circuit for a battery pack including a rechargeable battery cell having a positive electrode and a negative electrode is disclosed. The protection circuit includes a self-discharge switching device electrically connected to the positive electrode and the negative electrode of the battery cell, and a control unit electrically connected to the battery cell and the self-discharge switching device to turn-on or turn-off the self-discharge switching device according to a temperature of the battery cell. | 08-05-2010 |
20110064974 | BATTERY PACK - A battery pack that includes a bare cell, a bottom case and a resin part disposed on a lower surface of the bare cell. The bottom case has a number of holes. The resin part is disposed on a surface of the bare cell affixing the bottom case to the bare cell. Further, a number of protrusions is provided and composed of the same material as the resin part in which each protrusion corresponds to a hole. The protrusions and the holes have a circular, tetragonal or polygonal cross sectional shape in which upon thermal compression of the protrusions the bottom case is solidly coupled to the resin part. | 03-17-2011 |
20110123839 | SECONDARY BATTERY AND METHOD OF MAKING SECONDARY BATTERY - A secondary battery and a method for making the secondary battery, which are capable of preventing separation between a metal plating layer and a flexible printed circuit board, and improving adhering force between a battery pack and the flexible printed circuit board, through a structure of a metal plating layer and protective layer of the flexible printed circuit board. The secondary battery includes an insulation layer with a first and second surface, a first line pattern layer formed on the first surface of the insulation layer, a first protective layer formed on the insulation layer and the first line pattern layer to define a first opening that exposes a portion of the first line pattern layer, and a first metal plating layer formed in the first opening. The first protective layer contacts the first line pattern layer and a side surface of the first metal plating layer. | 05-26-2011 |
20150340123 | TRANSPARENT CONDUCTOR AND ELECTRONIC DEVICE INCLUDING THE SAME - A transparent conductor including a Group 5 transition metal and boron, wherein the compound has a layered structure. | 11-26-2015 |
20150376020 | ELECTRICALLY CONDUCTIVE THIN FILMS - An electrically conductive thin film includes a compound represented by Chemical Formula 1 and having a layered crystal structure: | 12-31-2015 |
20150380122 | ELECTRICALLY CONDUCTIVE THIN FILMS - An electrically conductive thin film including a compound represented by Chemical Formula 1 and having a layered crystal structure: | 12-31-2015 |
20160002051 | ELECTRICALLY CONDUCTIVE THIN FILMS - An electrically conductive thin film including a compound represented by Chemical Formula 1 and having a layered crystal structure Chemical Formula 1 | 01-07-2016 |
20160141067 | ELECTRICALLY CONDUCTIVE THIN FILMS - An electrically conductive thin film including: a material including a compound represented by Chemical Formula 1 and having a layered crystal structure, | 05-19-2016 |
Patent application number | Description | Published |
20110292578 | MOBILE TERMINAL - Disclosed is a mobile terminal capable of being slid in two directions. The mobile terminal includes a front body, a rear body, and a slide module configured to allow the front body to be slid along a lengthwise direction and widthwise direction with respect to the rear body. The slide module includes a cover plate having an area to cover a whole rear side of the front body; a middle plate having a pair of guide rails on a front side thereof, a slide plate on a rear side thereof, and a first keypad disposed on a region that is not occupied by the pair of guide rails and the slide plate, the pair of guide rails being configured to allow the cover plate to be slid along the lengthwise direction; and a guide plate coupled to the rear body, and configured to allow the slide plate slid along the widthwise direction. | 12-01-2011 |
20130114194 | MOBILE TERMINAL - A mobile terminal includes a terminal main body and a keypad assembly provided in the main body and formed to receive a control command, wherein the keypad assembly includes a key top disposed on one surface of the main body to cover a switch installed in the main body, an actuator mounted on the key top and having at least a portion protruded to press the switch, and a pattern member including a base portion coupled to the actuator and a plated layer having at least a portion penetrating the key top to form a pattern exposed to the outside and plated on an outer surface of the base portion. | 05-09-2013 |
20130114195 | MOBILE TERMINAL - A mobile terminal includes a terminal main body and a keypad assembly provided in the main body and formed to receive a control command, wherein the keypad assembly includes a key top disposed on one surface of the main body to cover a switch installed in the main body, an actuator mounted on the key top and having at least a portion protruded to press the switch, and a pattern member including a base portion coupled to the actuator and a plated layer having at least a portion penetrating the key top to form a pattern exposed to the outside and plated on an outer surface of the base portion. | 05-09-2013 |
20140166130 | ANTI-SURGE VALVE - An anti-surge valve opens or closes a path depending on a negative pressure formed at an intake manifold, and includes an operating unit movable in a direction in response to the negative pressure, a spring means provided to push the operating unit in a direction opposite to the moving direction of the operating unit in response to the negative pressure, a spring mounting portion for mounting the spring means, and a diaphragm disposed to cover an outer surface of the operating unit. The diaphragm may be formed in a substantially hollow cylindrical shape and include a circumference portion formed along a circumference of an opened top surface of the diaphragm, a coupling portion formed along a circumferential direction from an outer end of the circumference portion, and a side portion extended substantially vertically from an inner end of the circumference portion, and has substantially uniform outer and inner diameters. | 06-19-2014 |
Patent application number | Description | Published |
20130026505 | LARGE AREA ORGANIC LIGHT EMITTING DIODE DISPLAY - The invention relates to a large area organic light emitting diode display having a uniformed luminescence throughout the display area. The invention suggests an organic light emitting diode display comprising a thin film transistor substrate including a thin film transistor, a driving current line to supply an electric signal to the thin film transistor, a driving line contact hole to expose some portions of the driving current line, and an organic light emitting diode connected to the thin film transistor; a cap including a cap substrate and an auxiliary electrode disposed on a surface of the cap substrate with an area that is at least ⅓ of an area of the cap substrate; a conductive sealing material to electrically connect the auxiliary electrode and the driving current line through the driving line contact hole; and an organic adhesive joining the thin film transistor substrate and the cap. | 01-31-2013 |
20140062331 | ORGANIC LIGHT EMITTING DISPLAY AND DRIVING METHOD THEREOF - An organic light emitting display comprises: a driving TFT comprising a gate connected to a node B, a drain connected to an input terminal of high-potential cell driving voltage, and a source connected to the organic light emitting diode through a node C; a first switching TFT for switching the current path between a node A and the node B in response to a light emission control signal; a second switching TFT for initializing the node C in response to an initialization signal; a third switching TFT for initializing either the node A or the node B in response to the initialization signal; a fourth switching TFT for switching the current path between a data line and the node B in response to a scan signal; a compensation capacitor connected between the node B and the node C. | 03-06-2014 |
20140184481 | ORGANIC LIGHT EMITTING DISPLAY, METHOD FOR DRIVING THE SAME, AND METHOD FOR MANUFACTURING THE SAME - An organic light emitting display, a method for driving the same, and a method for manufacturing the same are discussed. The organic light emitting display according to an embodiment includes a panel including subpixels each having a compensation circuit including a reference voltage supply transistor, which receives a reference voltage and initializes a node of a gate electrode of a driving transistor using the reference voltage, a scan driver supplying a scan signal to scan lines of the panel, a data driver supplying a data signal to data lines of the panel, a timing controller controlling the scan driver and the data driver, and a reference voltage compensation unit which varies the reference voltage on each scan line and supplies the reference voltage to the subpixels. | 07-03-2014 |
20150034933 | ORGANIC LIGHT EMITTING DIODE DISPLAY HAVING THIN FILM TRANSISTOR SUBSTRATE USING OXIDE SEMICONDUCTOR AND METHOD FOR MANUFACTURING THE SAME - Provided is a thin film transistor having an oxide semiconductor material for an organic light emitting diode display and a method for manufacturing the same. The organic light emitting diode display comprises: a gate electrode formed on a substrate; a gate insulating layer formed on the gate electrode; a semiconductor layer formed on the gate insulating layer to overlap with the gate electrode, and including a channel area and source and drain areas which extend from the channel area to both outsides, respectively and are conductorized; an etch stopper formed on the channel area and exposing the source area and the drain area; a source electrode contacting portions of the exposed source electrode; and a drain electrode contacting portions of the exposed drain electrode. | 02-05-2015 |
20150154908 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF COMPENSATING FOR IMAGE QUALITY THEREOF - Provided is an organic light emitting diode (OLED) display device including a plurality of pixels to display images, each of the pixels including an OLED, a driving transistor connected to the OLED, and a switching transistor configured to supply data signals to the OLED, the device including: a sensor configured to sense a change amount of a mobility of the driving transistor; a compensation value calculator configured to obtain a change amount of a threshold voltage of the driving transistor based on the sensed change amount of the mobility; and a data compensator configured to adjust the data signals based on the sensed change amount of mobility and the obtained change amount of the threshold voltage. | 06-04-2015 |
20150179103 | Display Device - A display device includes: a display panel in which a plurality of data lines and a plurality of gate lines intersect in a matrix form and pixels are formed at intersecting points thereof; a data drive unit connected to the plurality of data lines and configured to output a black data voltage corresponding to a gradation level of 0 and expressing the black data voltage as a third voltage through the data lines, the third voltage greater than a first voltage, which is a minimum output value, and less than or equal to a second voltage corresponding to a gradation level of 0 when linearly extending data voltages of two or more low gradation levels; a gamma voltage supply unit outputting a gamma voltage for each gradation level to the data drive unit; and a timing controller generating a control signal to control driving of the display panel. | 06-25-2015 |
20150187268 | ORGANIC LIGHT EMITTING DISPLAY - An organic light emitting display includes a display panel including display lines, on which a plurality of pixels each including an organic light emitting diode and a driving thin film transistor (TFT) are formed. The display lines are sequentially charged to an image display data voltage in response to an image display gate pulse in an image display period of one frame. A sensing target display line among the display lines outputs a sensing voltage corresponding to changes in electrical characteristic of the driving TFT included in each pixel in response to a sensing gate pulse during a vertical blank period excluding the image display period from the one frame and then is charged to a luminance recovery data voltage. The sensing gate pulse is supplied in the same pulse shape as the image display gate pulse in a predetermined period for charging the luminance recovery data voltage. | 07-02-2015 |