Patent application number | Description | Published |
20100328239 | TOUCH SENSOR, DISPLAY AND ELECTRONIC UNIT - A display includes: display pixel electrodes; common electrodes; a display layer; a display control circuit performing image display control based on an image signal; touch detection electrodes each arranged to form a capacitance between each of the touch detection electrodes and each of the common electrodes; and a touch detection circuit detecting an external proximity object based on a detection signal obtained from the touch detection electrodes with use of a common drive voltage for display applied to the common electrodes by the display control circuit as a touch sensor drive signal. The touch detection circuit includes: an A/D (analog-digital) converter section performing sampling of a detection signal obtained from each of the touch detection electrodes at three or more different sampling frequencies to produce three or more sampling detection signals, and a detection section performing a detection operation based on the three or more sampling detection signals. | 12-30-2010 |
20100328256 | TOUCH SENSOR, DISPLAY AND ELECTRONIC UNIT - A display includes: display pixel electrodes; common electrodes; a display layer; a display control circuit; touch detection electrodes; and a touch detection circuit detecting an external proximity object based on a detection signal obtained from the touch detection electrodes with use of a common drive voltage for display applied to the common electrode as a touch sensor drive signal. The touch detection circuit includes: a first filter allowing a fundamental detection signal, contained in the detection signal and having a frequency same as a fundamental frequency of the touch sensor drive signal, to pass therethrough, a plurality of second filters separately allowing two or more harmonic detection signals, contained in the detection signal and having frequencies same as respective harmonic frequencies of the touch sensor drive signal, to pass therethrough, and a detection section performing a detection operation based on the fundamental detection signal and the harmonic detection signals. | 12-30-2010 |
20100328257 | METHOD OF DRIVING TOUCH PANEL, CAPACITANCE-TYPE TOUCH PANEL, AND DISPLAY APPARATUS WITH TOUCH DETECTION FUNCTION - A capacitance-type touch panel, allowing disturbance noise and touch detection time to be reduced and having a simple configuration, is provided. The capacitance-type touch panel including: a plurality of drive electrodes each having a strip shape; a drive control circuit performing control such that a drive signal for touch detection is selectively applied to the drive electrodes; a plurality of touch detection electrodes arranged to intersect with the drive electrodes in such a manner that capacitance is formed in each intersecting part, and each outputting a detection signal in synchronization with the drive signal; and a detection circuit detecting an external proximity object based on the detection signal. The drive control circuit controls application of the drive signal in such a manner that the detection signal is a polarity-alternating signal including a positive-negative asymmetrical signal component which is due to presence of the external proximity object. | 12-30-2010 |
20100328259 | TOUCH SENSOR AND DISPLAY DEVICE - A touch sensor that may detect an object away from the sensor is provided. The touch sensor includes one or more drive electrodes; one or more detection electrodes forming capacitance in cooperation with the respective drive electrodes; a detection circuit applying drive signals to the respective drive electrodes to detect the object based on detection signals obtained from the respective detection electrodes in response to the respective drive signals; and a controller controlling to change a range of electric flux lines generated between the drive electrodes and the detection electrodes. | 12-30-2010 |
20110134076 | CAPACITIVE TOUCH PANEL AND DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION - A capacitive touch panel capable of reducing a disturbance noise and reducing touch detection time with a simple structure is obtained. The capacitive touch panel includes: a plurality of drive electrodes each to which a drive signal for touch detection is applied; a plurality of touch detection electrodes arranged to intersect the plurality of drive electrodes, and each outputting a detection signal synchronized with the drive signal; a first sampling circuit (A/D conversion circuits | 06-09-2011 |
20140204060 | TOUCH SENSOR AND DISPLAY DEVICE - A touch sensor that may detect an object away from the sensor is provided. The touch sensor includes one or more drive electrodes; one or more detection electrodes forming capacitance in cooperation with the respective drive electrodes; a detection circuit applying drive signals to the respective drive electrodes to detect the object based on detection signals obtained from the respective detection electrodes in response to the respective drive signals; and a controller controlling to change a range of electric flux lines generated between the drive electrodes and the detection electrodes. | 07-24-2014 |
Patent application number | Description | Published |
20090251445 | DRIVING CIRCUIT FOR A LIQUID CRYSTAL DISPLAY - A method of driving a liquid crystal display and a drive circuit for a liquid crystal display module wherein the liquid crystal display of the liquid crystal display module is controlled and the image data displayed by the liquid crystal cells is refreshed. Received frames of image data are analysed to determine if individual frames of image data have characteristics prone to showing flicker. The refresh rate is reduced if the image analysis determines that the frames received of image data do not have characteristics prone to showing flicker. | 10-08-2009 |
20090251629 | LIQUID CRYSTAL DISPLAY MODULE - A liquid crystal display module including a liquid crystal display having a plurality of liquid crystal cells, a plurality of switches and a common connection, each liquid crystal cell being connected between a respective switch and a common connection. The common connection includes strips, each extending in a first direction and the strips being arranged side-by-side in a second direction. The liquid crystal cells are arranged in rows, each row being along and connected to a strip. The liquid crystal display has gate lines, each gate line operating a respective plurality of the switches. For dot inversion, each gate operates switches connected to respective liquid crystal cells of two adjacent rows. For each row, a first set of alternate liquid crystal cells are connected to respective switches operated by a respective gate line and a second set of interspersed liquid crystal cells are connected to respective switches operated by another respective gate line. | 10-08-2009 |
20140152616 | DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION AND ELECTRONIC APPARATUS - According to an aspect, a display device with a touch detection function includes a plurality of drive electrodes that face a plurality of pixel electrodes in an orthogonal direction to the surface of the substrate, and extend in a direction parallel to the direction in which a plurality of signal lines extend. The display device with a touch detection function also includes a scan driving unit that applies a touch drive signal to a signal line that faces, in an overlapping manner in the orthogonal direction, a drive electrode to which the touch drive signal is applied. | 06-05-2014 |
20140152617 | DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION, DRIVE METHOD THEREOF, AND ELECTRONIC APPARATUS - According to an aspect, a display device with a touch detection function includes: a scan drive unit that supplies a touch drive signal to a touch detection element in a touch detection operation period different from a display operation period in which a pixel signal and a display drive signal are sequentially supplied to display elements to perform display scanning; and a noise detector that detects noise included in a frequency component sampled by a touch detection unit. When the noise detector detects the noise, the scan drive unit changes a frequency of the touch drive signal in the touch detection operation period and supplies the changed frequency to the touch detection element. | 06-05-2014 |
20140176496 | TOUCH DETECTION DEVICE, DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION, AND ELECTRONIC APPARATUS - According to an aspect, a touch detection device includes a drive unit that supplies an excitation signal having at least variable magnitude to a first electrode at a predetermined period for detecting approach or a touch of an object; a detection unit electrically coupled to a second electrode provided to be opposed to the first electrode to detect approach or a touch of the object according to an output value from the second electrode; and an element that electrically couples the drive unit and the detection unit, receives the excitation signal from the drive unit, and has a predetermined size of electrostatic capacitance. The touch detection device corrects an output value from the second electrode by using an output value from the element and the output value from the second electrode obtained at the same timing. | 06-26-2014 |
20140192018 | TOUCH DETECTION DEVICE, DISPLAY DEVICE WITH TOUCH DETECTING FUNCTION, AND ELECTRONIC APPARATUS - According to an aspect, a touch detection device includes a drive electrode layer including a plurality of drive electrodes formed in stripes in an array direction; a plurality of touch detection electrodes that are arranged in a manner facing the plurality of drive electrodes and generate capacitance with the plurality of drive electrodes; and a touch detecting unit that applies a touch drive signal to the plurality of drive electrodes and detects a position of an object in contiguity with a touch detection area based on detection signals supplied from the plurality of touch detection electrodes. The plurality of the drive electrodes include an end drive electrode that is provided to at least one end in the array direction and has a larger width in the array direction than the width in the array direction of drive electrodes other than the end drive electrode. | 07-10-2014 |
20140210743 | TOUCH DETECTION DEVICE, AND DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION AND ELECTRONIC APPARATUS INCLUDING THE SAME - According to an aspect, a touch detection device has a detection surface for detecting a position of an external proximity object which is in contact therewith or in proximity thereto. The touch detection device includes: a drive electrode layer that has a plurality of drive electrodes; a plurality of touch detection electrodes that face the drive electrodes; a drive electrode driver for applying a driving signal to the drive electrodes; and a plurality of wirings for electrically coupling the plurality of drive electrodes with the drive circuit. In the drive electrode layer, a specific drive electrode coupled via the wiring with a longest distance has an overlapped area smaller than an average of the overlapped areas of the other drive electrodes. The overlapped area is an area that is overlapped with the wiring. | 07-31-2014 |
20140292676 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE ELECTRONIC DEVICE - There is provided a sensor-integrated display device including a display surface from which display information is output and a sensor surface to which operation information is input, the display surface and the sensor surface being formed integrally with the sensor-integrated display device as one piece, a data transfer unit which generates and outputs three-dimensional information (RAW-D) in response to a signal sensed on the sensor surface, and an application executing device having a processing function of generating three-dimensional image data in a plurality of points sensed on the sensor surface, based on the three-dimensional information output from the data transfer unit and computing a touch coordinate, based on the generated image data. | 10-02-2014 |
20140292677 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME - According to one embodiment, an electronic device includes a display device includes a plurality of first electrodes arranged in a matrix form, second electrodes opposite to the first electrodes, the second electrodes including a plurality of electrode patterns extending in a first direction and aligned in a second direction to cross the first direction, and third electrodes opposite to the second electrodes, the third electrodes including a plurality of electrode patterns extending in the second direction and aligned in the first direction, a display driver applying a sensor drive signal to the second electrodes, a detection circuit transmitting a detection data including physical quantity data detected from the plurality of electrode patterns of the third electrodes at each time when the sensor drive signal is applied to the second electrodes, and an application processor processing the detection data received from the detection circuit. | 10-02-2014 |
20140292678 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE ELECTRONIC DEVICE - A sensor-integrated display panel including an operation surface for performing an input operation and an image display surface which are formed integrally with a sensor as one piece. A data transfer device supplies the sensor-integrated display panel with a drive signal for driving the sensor and outputs sensing data corresponding to a potential of a sensor signal output from the sensor. A contact electrode is provided in a frame formed around the sensor-integrated display panel to vary the potential of the sensor signal when a conductor touches or does not touch to the frame. An application executing device receives and analyzes the sensing data and generates a signal to select an operating function in accordance with an analysis result. | 10-02-2014 |
20140292679 | ELECTRONIC DEVICE, APPLICATION-EXECUTING DEVICE AND METHOD FOR CONTROLLING THE ELECTRONIC DEVICE - The electronic device comprises a sensor-integrated display panel, a data transfer device, and an application execution device. The sensor-integrated display panel includes an operation surface for giving an operation input to a sensor and a display surface of an image. The data transfer device inputs a display signal and a driving signal for a sensor to the sensor-integrated display panel and receives a sensor signal from the sensor. And the application execution device time-divides display data which becomes a source of the display signal, transmits the display data and timing information to the data transfer device, the timing information indicating a period for inputting the driving signal to the sensor-integrated display panel in a blanking period of the time-divided display data. | 10-02-2014 |
20140292680 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME - According to one embodiment, the sensor-integrated display panel comprises an operation surface for operating a first sensor and a display surface of an image. The data transfer device is configured to input a driving signal for driving the first sensor to the sensor-integrated display panel and to output detection data corresponding to a potential of a sensor signal output from the first sensor. And the multi-sensor output determination module is configured to switch a processing form of the signal of the first sensor in accordance with a condition of output from a second sensor. | 10-02-2014 |
20140292681 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME - According to one embodiment, an electronic device includes a display device having a plurality of first electrodes arranged in a matrix form, second electrodes including a plurality of electrode patterns extending in a first direction and aligned in a second direction to cross the first direction, and third electrodes including a plurality of electrode patterns extending in the second direction and aligned in the first direction, a display driver configured to apply a sensor drive signal to the second electrodes, a detection circuit configured to transmit a detection data group including physical quantity data detected in one detection period from the plurality of electrode patterns of the third electrodes at each time when the sensor drive signal is applied to the second electrodes, and an application processor configured to process the detection data group received from the detection circuit. | 10-02-2014 |
20140292682 | ELECTRONIC APPARATUS AND METHOD OF CONTROLLING THE SAME - According to one embodiment, an electronic apparatus, includes a sensor-equipped display device includes a display device and a sensor configured to detect a contact or proximate position, a display driver configured to output an image display signal to the display device and to output a drive signal to the sensor, a detecting circuit configured to generate, based on the information from the sensor, raw data (Raw data) including three-dimensional information of coordinates of a position on the display device and a physical quantity at the coordinates, and an application processor configured to discriminate whether a part of the region in the display area should be further sensed or not, based on the raw data, and if the part of the region is further sensed, to output the range of the display device to be further sensed and the timing of driving the sensor to the display driver. | 10-02-2014 |
20140292683 | ELECTRONIC APPARATUS AND CONTROL METHOD OF ELECTRONIC APPARATUS - According to one embodiment, an electronic apparatus includes a sensor-equipped display device including a display device and a sensor which outputs information for detecting a contact position on the display device, a display driver which outputs a driving signal to the sensor based on one setting table, an application processor which outputs a table selection signal specifying a setting table and a sensor setting signal specifying a driving method of the sensor to the display driver, and a sensing circuit which outputs a dataset including three-dimensional information of a coordinate of a position on the display device and a physical quantity at the coordinate to the application processor, and outputs a table selection request signal generated based on the table selection signal, and a control signal which controls driving timing of the sensor to the display driver, the control signal having generated based on the sensor setting signal. | 10-02-2014 |
20140292686 | ELECTRONIC DEVICE AND METHOD OF CONTROLLING THE SAME - According to one embodiment, an electronic device includes a sensor-equipped display device including a pixel electrode, a common electrode opposed to the pixel electrode, and a detection electrode which is opposed to the common electrode, includes a plurality of segments, a display driver configured to supply a display signal to the pixel electrode and to supply a sensor driving signal or a common driving signal to the common electrode, a detection circuit configured to output to the display driver a data set including a sensor detection value from each of the segments of the detection electrode, based on the supplying of the sensor driving signal to the common electrode, and an application processor configured to receive the data set which has been output via the display driver from the detection circuit. | 10-02-2014 |
20140292687 | ELECTRONIC APPARATUS AND METHOD OF CONTROLLING THE SAME - According to one embodiment, an electronic apparatus includes a sensor-integrated display device integrally including a display surface and a sensor surface, a data transfer device, an image data generation module, and a processing module. The data transfer device configured to generate and output three-dimensional information. The image data generation module configured to generate three-dimensional image data at a plurality of sensing points on the sensor surface based on the three-dimensional information. The processing module configured to analyze an operation content of a conductor above the sensor surface based on the image data. | 10-02-2014 |
20150022494 | TOUCH DETECTING DEVICE, DISPLAY DEVICE WITH TOUCH DETECTING FUNCTION, AND ELECTRONIC APPARATUS - According to an aspect, a touch detecting device includes: a first drive area and a second drive area each including drive electrodes and detection electrodes, the drive electrodes extending in a first direction, being arrayed in a second direction intersecting with the first direction, and being applied with a drive signal, the detection electrodes extending in the second direction, being arrayed in the first direction, and outputting a detection signal. Application of the drive signal to the drive electrodes in the second drive area is stopped at a timing to apply the drive signal to the drive electrodes arranged in a first predetermined area included in the first drive area, and application of the drive signal to the drive electrodes in the first drive area is stopped at a timing to apply the drive signal to a second predetermined area included in the second drive area. | 01-22-2015 |
Patent application number | Description | Published |
20090058488 | Delay circuit, semiconductor control circuit, display device, and electronic device - Disclosed herein is a delay circuit for performing one of a charge and a discharge in two stages, and delaying a signal, the delay circuit including an output section configured to output a delayed signal; two power supplies; and a delay inverter; wherein the delay inverter has a first transistor and a second transistor of an identical channel type for one of a first charge and a first discharge, the first transistor and the second transistor being connected in series with each other between the output section and one power supply, and the delay inverter has a third transistor of a different channel type from the first transistor and the second transistor for one of a second charge and a second discharge, the third transistor being connected in parallel with one of the first transistor and the second transistor. | 03-05-2009 |
20090058776 | Display apparatus, driving method thereof and electronic equipment - A display apparatus including: an effective pixel section having a plurality of pixel circuits arranged to form a matrix, each pixel circuit including a switching device through which pixel video data is written into the pixel circuit; a plurality of scan lines each provided for an individual one of rows of the pixel circuits arranged on the effective pixel section to control the conduction states of the switching devices; a plurality of capacitor lines each arranged for individual one of the rows connected to the pixel circuits; a plurality of signal lines each arranged for individual one of columns connected to the pixel circuits to propagate the pixel video data; a first driving circuit configured to selectively drive the scan lines and the capacitor lines; and a second driving circuit configured to drive the signal lines. | 03-05-2009 |
20090128527 | Display apparatus, driving method of the same and electronic equipment using the same - Disclosed herein is a display apparatus including: an available pixel section having a plurality of available pixel circuits; a plurality of scan lines; a plurality of capacitor lines; a plurality of signal lines; a driving circuit; and a monitor circuit wherein each of the available pixel circuits laid out on the available pixel section includes a display element having first and second pixel electrodes and a storage capacitor having first and second electrodes, in each of the available pixel circuits, the first pixel electrode and the first electrode are connected to one terminal of a switching device, in each of the available pixel circuits provided on any individual one of the rows, the second electrode is connected to the capacitor line provided for the individual row, and the common voltage signal with the level changing at time intervals determined in advance is supplied to the second pixel electrode of each of the display elements. | 05-21-2009 |
20110164007 | Delay circuit, semiconductor control circuit, display device and electronic device - Disclosed herein is a delay circuit for performing one of a charge and a discharge in two stages, and delaying a signal, the delay circuit including an output section configured to output a delayed signal; two power supplies; and a delay inverter; wherein the delay inverter has a first transistor and a second transistor of an identical channel type for one of a first charge and a first discharge, the first transistor and the second transistor being connected in series with each other between the output section and one power supply, and the delay inverter has a third transistor of a different channel type from the first transistor and the second transistor for one of a second charge and a second discharge, the third transistor being connected in parallel with one of the first transistor and the second transistor. | 07-07-2011 |