Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 106 is formed of a W generating circuit 201, which is the same as in the prior art, a sub-pixel rendering circuit 202, a W intensity calculating portion 203 which transmits a W intensity setting value 205 to a W generating circuit 201, and a low power backlight control circuit 204 which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion 202 and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion 203. A backlight control signal is generated in accordance with the amount of data expansion in the sub-pixel rendering portion 202.

Abstract: 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.

Abstract: A booster circuit of a two-step booster structure is manufactured by NMOS single channel processes and has two basic booster circuits to raise a gate voltage of a charge transfer transistor. The gate voltage of the transistor is first raised at one basic booster circuit, and this raised voltage is further raised at the other basic booster circuit.

Abstract: 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). In RGB time division drives, the order of time division is switched for each frame, or in the direction of the horizontal lines.

Abstract: A display device having an on-screen display (OSD) function receives a YUV video signal such as the camera video signal or broadcast video signal of YUV format from a camera or recording medium, receives an RGB-OSD signal from a circuit device (serial interface) of another system different from this YUV video signal, causes a memory within an OSD processor to store the OSD signal, converts an RGB video signal resulting from conversion of the YUV video signal to a panel-matched RGB video signal synchronized with a display synchronization signal, reads a panel-matched RGB OSD signal from the memory of the OSD processor in synchronism with this display synchronization signal, composes those RGB video signal and OSD signal, using an OSD composer, and supplies the resulting RGB composite video signal and the display synchronization signal to a display panel.

Abstract: 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 (102) is provided such that at least three electrode terminals (102) are aligned in each side of a detection transparent conductive film (101). A touch panel control circuit is provided for selecting one of two to four numbers of electrode terminals from among the plurality of electrode terminals (102) of the detection transparent conductive film (101), applying an AC signal provided from a signal source (105) through a current detection resistor (r) (103), and then detecting a current that flows through each of the selected electrode terminals.

Abstract: 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.

Abstract: 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 (4) for detecting a change in capacitance between the plurality of X coordinate electrodes and the plurality of Y coordinate electrodes of the touch sensor (3); a touch panel control circuit (6) for determining a touched coordinate point; and a main control circuit (7) for receiving touch coordinate data from the touch panel control circuit (6). The main control circuit (7) judges occurrence of a user's touch and coordinates of the occurrence from the touch coordinate data, and supplies a display signal corresponding to the judged coordinates to the display device (1) via the display control circuit (2), whereby the display signal is reflected on the display.

Abstract: An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.

Abstract: 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.

Abstract: 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.

Abstract: 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 PDT1 to PDT4.

Abstract: 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.

Abstract: 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 VDD1>VDD2+Vth where VDD1 is the power supply voltage of the input inverter, VDD2 is the power supply voltage of the output buffer, and Vth is the threshold voltage of the transistors. Use of the high-resistance load allows an output waveform to rise and fall quickly, as well as reduces current consumption.

Abstract: 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.

Abstract: 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.