| Patent application number | Description | Published |
|---|
| 20080198150 | DISPLAY DEVICE - A display device wherein a common voltage generating circuit selectively outputs a high- or a low-potential-side common voltage to common electrodes in response to an alternating signal; a complement circuit which selectively outputs display data or complement data of display data in response to the alternating signal; a storage circuit; a reference data generating circuit; a ramp voltage generating circuit; a plurality of comparing circuits which compare data stored in the storage circuit and the reference data generated by the reference data generating circuit; and a plurality of sampling circuits which sample the ramp voltage in response to comparison results of the comparing circuits and output the sampled ramp voltage as a video signal voltage to respective video lines, wherein a inclination of the ramp voltage is the same when the storage circuit stores both the display data and the complement data of the display data. | 08-21-2008 |
| 20080316156 | Display device - A shift register circuit has a plurality of shift pulse generation circuits, and a scanning voltage generation circuit has a plurality of base circuits. The base circuits are presented with a first shift pulse generated by a shift pulse generation circuit, and a scanning line clock. The base circuits have a first transistor in which the first shift pulse is input to a first electrode, and a first power supply voltage is input to a control electrode; and a second transistor in which a control electrode is connected to a second electrode in the first transistor, a scanning line clock is input to the first electrode, and the second electrode is connected to a scanning voltage output terminal. The base circuits output a selected scanning voltage synchronized with the scanning line clock from the scanning voltage output terminal when the first shift pulse is at a first voltage level. | 12-25-2008 |
| 20090002341 | Display device - It is an object of the present invention to allow a specified function to be readily selected in a mobile telephone or the like without performing a complicated operation. A liquid crystal ( | 01-01-2009 |
| 20090009486 | Display device with touch panel - A touch panel includes plural first electrodes extending in a first direction, plural second electrodes extending in a second direction different from the first direction, a driving circuit, a detection circuit, and a coordinate-position calculating circuit. The driving circuit sequentially selects two first electrodes out of the plural first electrodes, supplies a high potential voltage higher than a reference voltage to one of the selected two first electrodes, and supplies the reference voltage to the other, the detection circuit detects a capacitance difference (A-B) between a capacitor A between a selected one of the second electrodes and the first electrode to which the high potential voltage is supplied and a capacitor B between the selected second electrode and the first electrode to which the reference voltage is supplied, and the coordinate-position calculating circuit calculates a touch position on the touch panel touched by the observer on the basis of positions of the selected first and second electrodes and the capacitance difference (A-B). | 01-08-2009 |
| 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 |
| 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 |
| 20090213059 | Liquid crystal display device - The present invention provides a liquid crystal display device which can recover a charge stored in a liquid crystal display panel without using an exteriorly mounted part such as a coil thus achieving the low power consumption. A display device includes a liquid crystal display panel having a plurality of pixels, a plurality of video lines which apply a video voltage to the plurality of pixels, and a drive circuit which supplies the video voltage to the plurality of video lines. In such a display device, the liquid crystal display panel has a common electrode to which a first voltage and a second voltage having a potential higher than a potential of the first voltage are alternately applied. The liquid crystal display panel further includes a charge recovering circuit which is connected between the respective video lines and a power source line and recovers charge when a voltage applied to the common electrode is changed over from the first voltage to the second voltage or when the voltage applied to the common electrode is changed over from the second voltage to the first voltage. | 08-27-2009 |
| 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 |
| 20090315857 | DISPLAY DEVICE WITH TOUCH PANEL - A present display device with a touch panel includes: four detection circuits each of which is provided in one of the four corners of the transparent conductive film; and a coordinate position arithmetic circuit to which voltages detected by the four detection circuits are input. The detection circuits each include: a detection switch which supplies the position detection voltage to the corner of the transparent conductive film; and an integration circuit which integrates a current that flows in the corner of the transparent conductive film where its own detection circuit is provided after the detection switch is switched off. Based on voltages integrated by the four integration circuits, the coordinate position arithmetic circuit calculates which point on the transparent conductive film has been touched with one of a finger of an observer and a pen held by the observer. | 12-24-2009 |
| 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 |
| 20100001969 | Display Device with Touch Panel - In a display device with a touch panel which includes a display panel and a touch panel which is arranged to face the display panel in an opposed manner, the touch panel includes a transparent substrate, a plurality of first electrodes which is formed on a surface of the transparent substrate on a side facing the display panel, and a plurality of second electrodes which intersects with the plurality of first electrodes and is formed on the surface of the transparent substrate on the side facing the display panel, the display panel forms a planar third electrode which faces the plurality of first electrodes and the plurality of second electrodes on a surface thereof on a side facing the touch panel, and a distance between the plurality of first electrodes and the third electrode and a distance between the plurality of second electrodes and the third electrode are respectively set to 0.5 mm or less. | 01-07-2010 |
| 20100007628 | Screen Input-Type Image Display System - A touch sensor ( | 01-14-2010 |
| 20100149155 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device which arranges a drive circuit on left and right sides of a display region in a two-split manner, flickering at an edge of a screen can be reduced. In a liquid crystal display device which arranges first and second counter electrode drive circuits on left and right sides of a display region respectively, during an arbitrary 1 frame period, a first counter electrode signal drive circuit | 06-17-2010 |
| 20100149156 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device which can reduce a scale of the whole counter-electrode-signal drive circuits is provided. The liquid crystal display device includes: a substrate; a plurality of counter electrodes which are formed on the substrate corresponding to pixels; a plurality of counter electrode signal lines which are formed on the substrate, are electrically made conductive with the counter electrodes, extend in the X direction, and are arranged parallel to each other in the Y direction which intersects the X direction; and counter electrode signal drive circuits having control signal outputting parts which are mounted on the substrate at a rate of one control signal outputting part for two counter electrode signal lines. | 06-17-2010 |
| 20100171739 | DISPLAY DEVICE - The present invention provides a display device which includes a common electrode drive circuit having the single channel constitution which can miniaturize a circuit scale without increasing elements compared to a conventional display device. A display device includes a plurality of pixels and a common electrode drive circuit. The common electrode drive circuit includes a plurality of basic circuits, wherein the basic circuit includes a first circuit which latches a first input signal at a point of time that a clock signal is changed to a first voltage level from a second voltage level; a second circuit which latches a second input signal at the point of time that the clock signal is changed to the first voltage level from the second voltage level; a first switching circuit which is turned on based on the first circuit and a second switching circuit which is turned on based on the voltage second circuit. | 07-08-2010 |
| 20100177073 | DISPLAY DEVICE - A display device is provided which includes a common electrode drive circuit having the single channel constitution which can miniaturize a circuit scale without increasing elements compared to a conventional display device. A display device includes a plurality of pixels and a common electrode drive circuit. The common electrode drive circuit includes a plurality of basic circuits, wherein the basic circuit includes a first circuit which latches a first input signal at a point of time that a clock signal is changed to a first voltage level from a second voltage level; a second circuit which latches a second input signal at the point of time that the clock signal is changed to the first voltage level from the second voltage level; a first switching circuit which is turned on based on the first circuit and a second switching circuit which is turned on based on the second circuit. | 07-15-2010 |
| 20110019118 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device which can reduce a circuit scale of a drive circuit is provided. A TFT substrate of the liquid crystal display device includes a pixel circuit in each pixel, and the pixel circuit includes a thin film transistor, a pixel electrode which is connected to a source side of the thin film transistor, and a common electrode which is one planar transparent electrode extending in a display region in a planar shape. A vertical drive circuit includes a transistor which is driven by a control signal voltage including a clock signal from a drive IC, and constitutes a damper for a high voltage. The drive IC outputs an equalizing switch signal voltage to equalizing switches which connect the common electrode and data signal lines. | 01-27-2011 |
