| Patent application number | Description | Published |
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| 20080238817 | DISPLAY DEVICE - In a display device, pixel electrodes I, II and III corresponding to color filters R, G and B are coupled to TFTs which are turned on in accordance with signals on gate lines G, and the drain (source) of the TFT coupled to the pixel electrode II is connected with the source (drain) of the TFT coupled to the pixel electrode III. A signal voltage is written in the pixel electrode I when the gate line G | 10-02-2008 |
| 20080246707 | Display Device - A display device includes a pair of substrates, a drain signal line, a capacitance line and a counter voltage line formed on one substrate of the pair of substrates, a pixel including a thin film transistor connected to the drain signal line, a pixel electrode connected to the thin film transistor, and a counter electrode connected to the counter voltage line, a video signal driver circuit formed on the one substrate and connected to the drain signal line, and a first interconnection layer disposed between the pixel and the video signal driver circuit. At least one of the capacitance line and the counter voltage line is connected to the first interconnection layer between the video signal driver circuit and the pixel. | 10-09-2008 |
| 20080259088 | Display device - Disclosed herein is a display device in which input data is written to a RAM as current frame data and read from the RAM as preceding frame data. Then, the current frame data and the preceding frame data are added up in a correction circuit and the result is subjected to an overdriving processing. After this, the processed (over-driven) data is assumed as current frame corrected data, which is then written to the RAM. The written corrected data is read from the RAM and subjected to a double-speed driving processing. | 10-23-2008 |
| 20080278650 | DISPLAY DEVICE - An inverter includes an input inverter having a high-resistance load and a first transistor and an output buffer including second and third transistors coupled in series. A power supply voltage is provided to satisfy an inequality VDD | 11-13-2008 |
| 20080291339 | DISPLAY DEVICE - A data driver circuit is divided into a low potential region, an intermediate potential region, and a high potential region, and relative withstand voltages in the respective regions are set equal to each other. Both of the transmission of a power source voltage to the high potential region from the low potential region and the transmission of video signals are performed via the intermediate potential region. Due to such a constitution, the withstand voltages in the respective regions can be suppressed to low values. | 11-27-2008 |
| 20090002338 | Screen input type image display - In an image display device incorporating a touch sensor capable of detecting coordinates with simple structure and high precision, a transparent conductive film on a substrate SUB forming a display screen of the image display device is patterned to form detection electrodes taking the shape of a plurality of pad electrodes SSP arranged in a two-dimensional matrix form of rows (X direction) and columns (Y direction). Row connection electrodes LNL and column connection electrodes LNC connecting the detection electrodes in rows and columns of the two-dimensional matrix to each other are formed of the same transparent conductive film as the pad electrodes. By arranging the pad electrodes in the matrix form, the contact area of a finger or the like touching the screen can be made large, resulting in improved detection precision (resolution). The pad electrodes are connected at four corners to coordinate detection terminals PDT | 01-01-2009 |
| 20090009487 | Display device with touch panel - Provided is a display device with a touch panel having the cost thereof reduced without a decrease in the transmittance ratio of light. A substrate has a planar transparent conductive film formed on an observer side thereof. The transparent conductive film is used as a transparent electrode of an electrostatic capacitance coupling type touch panel. A position detection pulsating voltage production circuit that inputs a pulsating voltage for position detection, and a coordinate position arithmetic circuit that computes a touched position on the transparent conductive film touched with an observer's finger are included. The transparent conductive film is shaped to have four corners. The position detection pulsating voltage generation circuit applies the position detection pulsating voltage to each of the four corners of the transparent conductive film at different timings. When the position detection pulsating voltage is applied to one of the four corners of the transparent conductive film, the coordinate position arithmetic circuit computes the touched position on the transparent conductive film, which is touched with the observer's finger, on the basis of a voltage outputted through the corner diagonally opposite to the corner to which the pulsating voltage is applied. | 01-08-2009 |
| 20090021670 | Display Device - A TFT element for ambient light detection and a TFT element for temperature detection are connected in series. In a first period, a first switch element is off, and a second switch element is at a hi side, so that a threshold voltage of the TFT element for temperature detection is detected. In a second period, a first switch element is on, and a second switch element is at a low side, so that temperature is detected. In a third period, a first switch element is on, and a second switch element is at a hi side, so that ambient light is detected. An input voltage and a control voltage to each of the TFT elements are set by a voltage controller provided in a drive circuit based on the threshold voltage. | 01-22-2009 |
| 20090046046 | Display device - An image processing unit ( | 02-19-2009 |
| 20090102809 | Coordinate Detecting Device and Operation Method Using a Touch Panel - In a touch panel capable of detecting the coordinates of two pressed-down points individually at the same time, the coordinates detected while one point is pressed are stored and, if a second point is subsequently pressed, the stored coordinates of a first point are used to identify the coordinates closer to the stored coordinates as the first point and the coordinates of another detected point as the second point, thereby identifying an order in which the two points are pressed. Thereafter, what mouse operation has been executed at the coordinates of the first point is detected based on a positional relation between the coordinates of the first point and the coordinates of the second point, and a result of the detection is output to an application operable through a graphical user interface. | 04-23-2009 |
| 20090102813 | On-screen input image display system - Provided is a capacitance coupling type on-screen input image display device that enables multipoint detection in a short period of time. The on-screen input image display device includes: a detection circuit ( | 04-23-2009 |
| 20090115742 | ON-SCREEN INPUT IMAGE DISPLAY SYSTEM - A detection resolution is improved in a display device that employs an electrostatic capacity coupling type touch panel provided with a transparent conductive film serving as a detection film. A plurality of electrode terminals ( | 05-07-2009 |
| 20090146938 | Display device - In RGB time division drives, there is capacitor coupling due to the effects of fluctuation in the drain lines, and thus, the image quality deteriorates (lateral smearing), so that the display brightness becomes different from the desired display brightness due to delay in the convergence of the fluctuation of the common potential, and thus, it is a goal to prevent the image quality from deteriorating (lateral smearing). | 06-11-2009 |
| 20090207182 | Display Device - The deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved. A processing portion for conversion from RGB to RGBW | 08-20-2009 |
| 20090213090 | Display Panel - A display panel is provided having a capacitive touch panel over a display region, wherein the capacitive touch panel comprises a plurality of X electrodes and a plurality of Y electrodes formed with an insulating layer there between and in a manner to cross each other, each of the X electrodes and the Y electrodes is formed such that a pad portion and a narrow line portion are alternately placed in a direction of extension, and when viewed from top, the pad portion of the X electrode and the pad portion of the Y electrode are placed to not overlap each other and a dummy electrode which is in a floating relationship with the X electrode and the Y electrode is formed between the pad portion of the X electrode and the pad portion of the Y electrode. | 08-27-2009 |
| 20090256821 | DISPLAY DEVICE - The electrostatic capacity coupling type touch panel includes X electrodes (XP) and Y electrodes (YP) which intersect each other via a first insulating layer, and a plurality of Z electrodes in floating states to each other via a second insulating layer. For the second insulating layer, a material which changes in thickness by pressing of touch is used. The Z electrode is disposed so as to overlap both an X electrode and a Y electrode which are adjacent to each other. In a pad part of the X electrode, an area is larger toward the center of the X electrode and an area is smaller toward the center of the adjacent X electrode. Therefore, the nonconductive input means can be used, and highly accurate position detection is realized with a small number of electrodes even when a touch area is small. | 10-15-2009 |
| 20090262095 | Electrostatic Capacitance Type Touch Panel and Screen Input Display Device Including the Same - An electrostatic capacitance type touch panel includes: a substrate; a plurality of first electrodes disposed in parallel on the substrate; an insulating film formed so as to cover the plurality of first electrodes; a plurality of second electrodes disposed in parallel to intersect the plurality of first electrodes on the insulating film; a plurality of first drawing wiring lines connected to the plurality of first electrodes to be drawn to a connection terminal; and a plurality of second drawing wiring lines connected to the plurality of second electrodes to be drawn to the connection terminal. The plurality of first drawing wiring lines have different lengths, larger widths as the lengths are shorter, and larger intervals between adjacent two of the plurality of first drawing wiring lines as the lengths are longer. | 10-22-2009 |
| 20090315858 | Display Device with Touch Panel - A present display device with a highly reliable capacitive touch panel includes: a display panel; and a capacitive touch panel which is placed on an observer side of the display panel, in which the touch panel includes a first substrate and a second substrate which are arranged to face each other, in which the first substrate includes on a surface thereof, which is opposed to the second substrate: a plurality of first electrodes which extend in a first direction side by side; and a plurality of second electrodes which extend in the second direction to intersect the plurality of first electrodes side by side, in which the second substrate includes on a surface thereof, which is opposed to the first substrate a planar third electrode, and the display device includes a gel-like sheet interposed between the plurality of first electrodes and the plurality of second electrodes, and the third electrode. | 12-24-2009 |
| 20100007628 | Screen Input-Type Image Display System - A touch sensor ( | 01-14-2010 |
| 20100020032 | Display Device - A display device having an electrostatic capacity touch panel includes: X electrodes XP and Y electrodes YP which intersect each other via a first insulating layer; and a plurality of Z electrodes disposed in a floating state via a second insulating layer. For the second insulating layer, a material such as an elastic insulating material which changes in thickness by pressing of touch is used. The Z electrode is disposed so as to overlap both one of the X electrodes and one of the Y electrodes. A pad part of the X electrode has a largest area in the vicinity of a thin line part of the X electrode, and a smallest area in the vicinity of the thin line part of the adjacent X electrode. An area of the pad part is reduced as the pad part departs from the thin line part of the X electrode. | 01-28-2010 |
| 20100060609 | Touched Position Detection Method for Touch Panel - In a touched position detection method for a touch panel for detecting a touched position, based on measured values by a plurality of sensors, presence of a touch is determined when a measured value by a sensor exceeds a touch threshold. As a touch threshold, a value which cannot be attained due to a mere noise but can due to presence of a touch is set. With respect to sensors located in the vicinity of a sensor showing a high measured value, a higher weighted value is applied to modify a measured value in a touched position calculation process than that to be applied to other sensors. | 03-11-2010 |
| 20100085322 | COORDINATE INPUT DEVICE AND DISPLAY DEVICE WITH THE SAME - A capacitance detection device of a capacitance system includes: a capacitance sensor electrode for detecting a capacitance; a power source for supplying charges to be charged in the capacitance sensor electrode; an electric charge storage capacitor in which an amount of charges to be charged therein changes according to the electric charges charged in the capacitance sensor electrode; and a switch for changing a reference potential of the electric charge storage capacitor. The reference potential of the electric charge storage capacitor is changed in a period of measuring the capacitance. | 04-08-2010 |
| 20100108409 | CAPACITIVE COUPLING TYPE TOUCH PANEL - A capacitive coupling type touch panel includes an XY-coordinate electrode configured to detect an XY-position coordinate. The XY-coordinate electrode is provided on a transparent substrate and detects a position inputted by capacitive coupling. The capacitive coupling type touch panel also includes an electrode provided at a position so as to be isolated from and opposed to the XY-coordinate electrode. | 05-06-2010 |
| 20100134440 | DISPLAY DEVICE - The display device is provided with X electrodes XP and Y electrodes YP which cross with a first insulating layer in between and a number of Z electrodes which are electrically floating from each other with a second insulating layer in between. The Z electrodes are arranged so that each Z electrode overlaps both an adjacent X electrode and Y electrode. The pad portion of a first X electrode has such a form that the area is maximum in the vicinity of the fine wire portion of the first X electrode and the area is minimum in the vicinity of the fine wire portion of an adjacent second X electrode, and the area of the pad portion is smaller towards the direction in which the distance increases away from the vicinity of the fine wire portion of the first X electrode. A pulse signal is sequentially applied to one set of X electrodes or Y electrodes. | 06-03-2010 |
| 20100214260 | LIQUID CRYSTAL DISPLAY DEVICE WITH INPUT FUNCTION - In a liquid crystal display device having a built-in capacitive coupling touch sensor, a pair of facing transparent substrates sandwich a liquid crystal layer | 08-26-2010 |
| 20100259504 | TOUCH-PANEL DEVICE - Provided is a touch-panel device capable of detecting a touched position with high accuracy even when a touched area extends off an electrode area. According to the present invention, the touched area is assumed to be, for example, a circular in shape. A width in an X direction (overlap width (X | 10-14-2010 |
| 20100271328 | INPUT DEVICE AND DISPLAY DEVICE HAVING THE SAME - An electrostatic capacitive coupling-type touch panel is provided which interacts not only with a finger-based input but also with a touch using non-conductive input means. The touch panel includes coordinate detection electrodes for detecting XY position coordinates and transparent Z electrodes. The Z electrodes are arranged over the coordinate detection electrodes at certain intervals with spacers disposed therebetween. An elastic layer that is deformed along the shape of the spacers by compressive force resulting from touch pressing presses the Z electrodes. | 10-28-2010 |
| 20100295810 | SENSORING APPARATUS OF PROXIMITY AND CONTACT, AND DISPLAY DEVICES - A sensor apparatus for detecting contact or proximity of an object includes a calculation section for separating a plurality of points of the contact or the proximity that are generated simultaneously, and calculating individual sets of positional coordinates, and the calculation section includes an analysis section for determining, based on a spatial distribution of signal intensity obtained through detection, a condition for separating the spatial distribution of the signal intensity into a plurality of regions. | 11-25-2010 |
| 20110050553 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device employing a dot inversion drive method includes a pixel array, a data driver circuit, a short circuit, and a scanning circuit. The short circuit is disposed for respective outputs of the data driver circuit, and includes a switching element for connecting each of the outputs to a precharge voltage different from an output voltage. The short circuit includes the switching element disposed in one of a first switching group and a second switching group; the switching element of one of the first switching group and the second switching group is connected to respective pairs of pixel column units including an odd-numbered pixel column and an even-numbered pixel column which are adjacent to each other; and the pairs of pixel column units which are adjacent to each other are each connected to the switching element disposed in respective switching groups different from each other. | 03-03-2011 |
| 20110090175 | TOUCH PANEL AND DISPLAY DEVICE USING THE SAME - Provided is a capacitive touch panel, including: a plurality of coordinate detection electrodes (XP | 04-21-2011 |
| 20110122118 | DISPLAY DEVICE - To obtain a display device that can perform measurements in a wider range and detect characteristic changes with high accuracy while suppressing the increase in circuit size. The display device includes display elements and a characteristic testing unit that tests characteristics of the display elements, and the characteristic testing unit includes a current supply unit for the display element as a target of test, a reference voltage output unit, an output voltage detecting unit that detects a code of a voltage of the test target display element relative to the reference voltage at each time, and a test control unit that allows the reference voltage output unit to sequentially output the reference voltages in response to the codes and acquires a measurement result of the voltage of the test target display element based on the codes. | 05-26-2011 |
