Patent application number | Description | Published |
20120007828 | Detection device and display apparatus - A detection device includes a sensor unit in which a plurality of detection electrodes is positioned in a detection surface, a selection unit that selects one of the plurality of detection electrodes or a plurality of detection electrodes, an oscillation unit in which an oscillation frequency is determined by a capacitance generated in the one or plurality of detection electrodes selected by the selection unit, a conversion unit that outputs a signal corresponding to the frequency of a signal from the oscillation unit, and a switch unit that performs electrical connection/disconnection between a wiring for connecting the oscillation unit and the selection unit and a constant voltage line. | 01-12-2012 |
20120044196 | Position detection apparatus, display apparatus and electronic apparatus - Disclosed herein is a position detection apparatus including: a sensor section having a plurality of detection electrodes laid out on a detection surface; a select section configured to select one or more detection electrodes from the detection electrodes; an oscillation section having an oscillation frequency determined by a capacitance generated in the one or more detection electrodes selected by the select section; a conversion section configured to output an output signal representing the frequency of an oscillation signal generated by the oscillation section; and a control section configured to change the frequency of the oscillation signal generated by the oscillation section in accordance with the output signal output by the conversion section. | 02-23-2012 |
20120075238 | Display device with touch detection function and electronic unit - A display device with a touch detection function includes a display function layer, a plurality of touch detection electrodes arranged side by side to extend in a first direction, and a plurality of drive electrodes arranged side by side to extend in a second direction, electrostatic capacitance being formed at intersections of the touch detection electrodes and the drive electrodes. The plurality of drive electrodes extends to a first position or a second position outside of the first position, the first position being away from a center of an outermost touch detection electrode by a half length of an arrangement pitch of the touch detection electrodes, the outermost touch detection electrode being defined as outermost one of touch detection electrodes included in an effective display region of the display function layer, and an outer edge of the effective display region is located on or inside the first position. | 03-29-2012 |
20120075239 | Touch detector and method of driving the same, display with touch detection function, and electronic unit - A touch detector capable of achieving high position resolution while improving detection sensitivity to a touch is provided. The touch detector includes: a plurality of drive electrodes arranged side by side to extend in one direction; a detection electrode extending in a direction orthogonal to a direction where the drive electrodes extend, and arranged to form a capacitance at each of intersections with the drive electrodes; and a scanning drive section sequentially selecting a predetermined plural number of target electrodes from the plurality of drive electrodes in a time-divisional manner, and applying a touch detection drive signal with a plurality of pulse waveforms for detecting an external adjacent object to the selected target electrodes to perform a scanning drive. A scanning pitch in the scanning drive is smaller than the total width of the plural number of selected target electrodes. | 03-29-2012 |
20120075240 | Display unit with touch detection function and electronic unit - A display unit with touch detection function includes a plurality of pixel signal lines each transmitting a pixel signal for display; a pixel signal line drive section applying the pixel signal to each of the pixel signal lines; display elements each performing display based on the pixel signal; touch detection electrodes each outputting a detection signal based on a change in capacitance occurring due to an external proximity object; and a touch detection section detecting, in a touch detection period, a touch event based on the detection signal, the touch detection period being different from a display period for the display elements to perform display operation. The pixel signal line drive section maintains a voltage of each of the pixel signal lines at a certain level during the touch detection period. | 03-29-2012 |
20120262389 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, DRIVE CIRCUIT, AND ELECTRONIC UNIT - There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend. | 10-18-2012 |
20120262390 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, METHOD OF DRIVING THE SAME, DRIVE CIRCUIT, AND ELECTRONIC UNIT - There are provided a display panel with a touch detection function and a method of driving the same, a drive circuit, as well as an electronic unit, which make it possible to reduce an influence of a disturbance noise. The display panel includes: a signal generation section selecting one pulse period from a plurality of pulse periods prepared beforehand, and generating a synchronization signal including a series of pulses appearing at the selected pulse period; a display section performing display based on the synchronization signal; and a touch detection section performing touch detection operation based on the synchronization signal. | 10-18-2012 |
20130082954 | DISPLAY UNIT, DISPLAY METHOD, AND ELECTRONIC SYSTEM - A display unit includes: a display section; a memory temporarily holding less than one frame of image information; a drive section driving the display section based on the image information which is stored in the memory; and a processing section performing a predetermined process in conjunction with the drive section. | 04-04-2013 |
20130082977 | DISPLAY, TOUCH DETECTION UNIT, DRIVING METHOD, AND ELECTRONIC UNIT - A display includes: display elements; drive electrodes; touch detection electrodes each forming an electrostatic capacitance with corresponding one of the drive electrodes; and a drive section applying an AC drive signal to the drive electrodes during each of a plurality of touch detection periods, the AC drive signal involving multiple transition to generate one or more transition timing pairs. The AC drive signal includes at least a first transition timing pair and a second transition timing pair over the plurality of touch detection periods. The first transition timing pair has a first transition interval, and the second transition timing pair has a second transition interval different from the first transition interval. | 04-04-2013 |
20130093706 | DISPLAY DEVICE, TOUCH DETECTION DEVICE AND ELECTRONIC APPARATUS - A display device includes: a display layer; plural first electrodes formed to be arranged above the display layer; a shield electrode formed apart from the plural first electrodes so as to surround the whole plural first electrodes along an arrangement surface; an insulating layer; and a semiconductive layer formed opposite to the first electrodes and the shield electrode so as to sandwich the insulating layer, wherein the difference between an average potential of the first electrodes and an average potential of the shield electrode is equal to or less than 0.5V. | 04-18-2013 |
20130093722 | DISPLAY APPARATUS, DRIVE CIRCUIT, DRIVING METHOD AND ELECTRONIC APPARATUS - A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M. | 04-18-2013 |
20140035867 | INPUT DEVICE AND DISPLAY DEVICE WITH INPUT DEVICE - When an ideal value of a width of each of a plurality of detecting electrodes (input-position detecting electrodes) in an X direction provided in an input device is defined as Wsmax [μm], an interval which is a center-to-center distance of adjacent detecting electrodes is defined as P [μm], and an effective inter-electrode distance represented by an inverse number of a value obtained by dividing a relative permittivity of an intermediate member by a thickness of the intermediate member is defined as D [μm], Wsmax is represented by a formula of: Wsmax=0.488×P-4.33×D-160. Also, a width of each of the plurality of detecting electrodes in the X direction falls within a range of not more than ±150 μm of a value of the Wsmax. | 02-06-2014 |
20140036166 | DISPLAY DEVICE WITH INPUT DEVICE, METHOD OF MANUFACTURING THE SAME, AND ELECTRONIC APPARATUS - The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed. | 02-06-2014 |
20140152613 | DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION AND ELECTRONIC APPARATUS - According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode. | 06-05-2014 |
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 |
20140168151 | DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION AND ELECTRONIC APPARATUS INCLUDING SAME - According to an aspect, a display device with a touch detection function includes: a pixel electrode; a touch detection electrode; a display drive unit for outputting the pixel signal to the pixel electrode in synchronization with a display drive signal; an operation drive unit for supplying the display drive signal in a display operation period to perform a display operation and supplying a touch detection drive signal in a touch detection period to perform a touch detection operation; a touch detection unit for detecting a detection signal outputted from the touch detection electrode; and a control unit for executing the display operation period and the touch detection period in a time divisional manner. The touch detection unit performs a noise detection operation for detecting a disturbance noise superimposed on the touch detection electrode in the display operation period. | 06-19-2014 |
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 |
20140218335 | INPUT DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE - A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP | 08-07-2014 |
20140253485 | DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, METHOD OF DRIVING THE SAME, DRIVE CIRCUIT, AND ELECTRONIC UNIT - There are provided a display panel with a touch detection function and a method of driving the same, a drive circuit, as well as an electronic unit, which make it possible to reduce an influence of a disturbance noise. The display panel includes: a signal generation section selecting one pulse period from a plurality of pulse periods prepared beforehand, and generating a synchronization signal including a series of pulses appearing at the selected pulse period; a display section performing display based on the synchronization signal; and a touch detection section performing touch detection operation based on the synchronization signal. | 09-11-2014 |
20140253498 | TOUCH-SENSOR DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE - In relation to touch sensors, technique capable of shortening total touch drive time and a touch detection period or suppressing increase thereof are provided. In a panel unit of a touch-sensor device, a touch drive unit generates a first pulse to an M-th pulses which are pulses of a plurality of types having mutually different cycles in accordance with differences in time constants with respect to paths including wirings of a peripheral area, touch drive electrodes, units of touch detection, touch detection electrodes, and wirings of the peripheral area through which pulses of touch drive signals to the plurality of touch drive electrodes are transmitted in a touch detection area in which the plurality of units of touch detection formed by pairs of the plurality of touch drive electrodes and the plurality of touch detection electrodes are formed like a matrix, and the touch drive unit applies the pulses. | 09-11-2014 |
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 |
20150097192 | DISPLAY DEVICE - A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer. | 04-09-2015 |
20150199057 | DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION AND ELECTRONIC UNIT - A display device with a touch detection function includes a display function layer, a plurality of touch detection electrodes arranged side by side to extend in a first direction, and a plurality of drive electrodes arranged side by side to extend in a second direction, electrostatic capacitance being formed at intersections of the touch detection electrodes and the drive electrodes. The plurality of drive electrodes extends to a first position or a second position outside of the first position, the first position being away from a center of an outermost touch detection electrode by a half length of an arrangement pitch of the touch detection electrodes, the outermost touch detection electrode being defined as outermost one of touch detection electrodes included in an effective display region of the display function layer, and an outer edge of the effective display region is located on or inside the first position. | 07-16-2015 |
20150205433 | TOUCH DETECTION DEVICE, DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION, AND ELECTRONIC APPARATUS - According to an aspect, a touch detection device includes drive electrodes, touch detection electrodes, a signal generation unit that generates direct-current signals having voltages different from one another, a first drive unit that selectively supplies one of the direct-current signals to the drive electrodes, an element, a second drive unit that selectively supplies one of the direct-current signals to one end of the element in synchronization with the first drive unit, and a detection unit that acquires output values from the touch detection electrodes and an output value from the element at the same time, and detects proximity or contact of a target object based on values obtained by correcting the output values from the touch detection electrodes using the output value from the element. | 07-23-2015 |
20150212638 | DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION - A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction. | 07-30-2015 |
20150212646 | TOUCH DETECTOR AND METHOD OF DRIVING THE SAME, DISPLAY WITH TOUCH DETECTION FUNCTION, AND ELECTRONIC UNIT HAVING PLURAL DIFFERENT DRIVE ELECTRODES - A touch detector capable of achieving high position resolution while improving detection sensitivity to a touch is provided. The touch detector includes: a plurality of drive electrodes arranged side by side to extend in one direction; a detection electrode extending in a direction orthogonal to a direction where the drive electrodes extend, and arranged to form a capacitance at each of intersections with the drive electrodes; and a scanning drive section sequentially selecting a predetermined plural number of target electrodes from the plurality of drive electrodes in a time-divisional manner, and applying a touch detection drive signal with a plurality of pulse waveforms for detecting an external adjacent object to the selected target electrodes to perform a scanning drive. A scanning pitch in the scanning drive is smaller than the total width of the plural number of selected target electrodes. | 07-30-2015 |
20150277657 | TOUCH DRIVE DEVICE, TOUCH DETECTION DEVICE AND DISPLAY DEVICE HAVING TOUCH DETECTION FUNCTION - According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal (TSVCOM) is supplied can be designated. | 10-01-2015 |
20150294629 | DISPLAY UNIT WITH TOUCH DETECTION FUNCTION AND ELECTRONIC UNIT - A display unit with touch detection function includes a plurality of pixel signal lines each transmitting a pixel signal for display; a pixel signal line drive section applying the pixel signal to each of the pixel signal lines; display elements each performing display based on the pixel signal; touch detection electrodes each outputting a detection signal based on a change in capacitance occurring due to an external proximity object; and a touch detection section detecting, in a touch detection period, a touch event based on the detection signal, the touch detection period being different from a display period for the display elements to perform display operation. The pixel signal line drive section maintains a voltage of each of the pixel signal lines at a certain level during the touch detection period. | 10-15-2015 |
20150346883 | DISPLAY APPARATUS, DRIVE CIRCUIT, DRIVING METHOD AND ELECTRONIC APPARATUS - A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M. | 12-03-2015 |
20150355766 | DISPLAY DEVICE - A display device comprises gate lines extending in a first direction, drain lines extending in a second direction, common electrodes extending in the second direction, and a drive circuit. The common electrodes are configured to be partitioned over drain lines of pixels of a specific color and to be used also as touch panel scan electrodes. The drive circuit is configured so that write periods for driving the gate lines and touch sensing periods for driving the scan electrodes are alternately repeated in each frame period, signal polarity of drain lines for colors other than the specific color is inverted every frame, signal polarity of drain lines for the specific color is inverted at a cycle shorter than one frame, and the cycle of the signal polarity inversion of the drain lines for the specific color can be changed. | 12-10-2015 |
20150364117 | TOUCH DETECTION DEVICE AND DISPLAY DEVICE HAVING TOUCH DETECTION FUNCTION - According to one embodiment, a touch detection device includes a plurality of drive electrodes, a plurality of detection electrodes, a display driver which performs a touch scanning drive by supplying a touch drive signal to a target drive electrode to be driven, and a touch driver which transmits and receives a signal to and from the display driver, wherein at least one of the number of pulses of the drive synchronizing signal and a pulse width of each of the pulses of the drive synchronizing signal is determined based on the signal received from the display driver. | 12-17-2015 |
20150370371 | DISPLAY DEVICE HAVING TOUCH DETECTION FUNCTION - A display device is provided and having a touch detection function includes drive electrodes, detection electrodes, a display driver which performs a touch scanning drive and a display scanning drive, and a touch driver which obtains touch information including detection information on the closely situated external object by acquiring detection signals from the detection electrodes. The display driver acquires the image signal, which is input in response to a master synchronizing signal output to the outside, and outputs the touch synchronizing signal to the touch driver after a predetermined time elapses from time when the image signal is input. The touch driver starts to operate in response to the touch synchronizing signal from the display driver, to acquire the touch information, and outputs the touch information to the outside to cause production of the image signal to start. | 12-24-2015 |
20150378507 | DISPLAY DEVICE, TOUCH DETECTION DEVICE AND ELECTRONIC APPARATUS - A display device includes: a display layer; plural first electrodes formed to be arranged above the display layer; a shield electrode formed apart from the plural first electrodes so as to surround the whole plural first electrodes along an arrangement surface; an insulating layer; and a semiconductive layer formed opposite to the first electrodes and the shield electrode so as to sandwich the insulating layer, wherein the difference between an average potential of the first electrodes and an average potential of the shield electrode is equal to or less than 0.5V. | 12-31-2015 |