Abstract: Provided is a display device including: a control portion; a display panel including one or more pixel circuits and an image signal line connected to the pixel circuits; and an image signal line driving circuit. The control portion includes a difference acquiring circuit for acquiring difference data between a value of a gray-level potential, which is to be applied to one of the pixel circuits from the image signal line, and a value of a precharge potential based on the gray-level potential. The image signal line driving circuit calculates the precharge potential based on the value of the gray-level potential and the difference data, and supplies the image signal line with the precharge potential and the gray-level potential in sequence.

Abstract: A display device and system are disclosed, wherein the display system is so configured that an n-fold rate increasing circuit is arranged with a signal generating device instead of with the display device to realize a low-cost n-fold rate impulse-type drive. The n-fold rate display data is output to the display device from the signal generating device, and the display device includes a circuit to subject the input n-fold rate display data to the data conversion process for the n-fold rate impulse drive. In addition to the n-fold rate display data, an identification signal for identifying the position of the turn of the frames of the original video signal is input to the display device to prevent the erroneous data conversion operation.

Abstract: A hold-type display device reduces the blur of a moving image and makes less conspicuous the color shift caused due to different blur positions among RGB. In the case where the relative brightness of the video data of one or two of the three primary colors RGB changes from between 0 and 0.5 inclusive for the previous frame to between 0 and 0.5 inclusive for the present frame, the video image of the one or two colors is delayed by one frame and displayed.

Abstract: A liquid crystal display device includes data lines, a plurality of pixel circuits, and a control circuit which obtains data line potentials which are formed by correcting potentials which allow the respective pixel circuits to display tones. The control circuit obtains the data line potentials such that a correction amount from a first potential to the data line potential when a tone potential in a frame which is displayed is the first potential and a tone potential in a frame right before the frame is a second potential, and a correction amount from the second potential to the data line potential when the tone potential of the frame which is displayed is the second potential and the tone potential of the frame right before the frame is the first potential differ from each other.

Abstract: The present invention realizes proper driving circuits in a driving-circuit integral type liquid crystal display device which has an increased screen size. The liquid crystal display device includes a liquid crystal display panel and a driving circuit which supplies video signals to video signal lines formed on the liquid crystal display panel. The driving circuit is comprised of a first driving circuit which is formed in a step similar to a step for forming pixels provided to the liquid crystal display panel and a second driving circuit which is connected to the liquid crystal display panel after formation of the liquid crystal display panel. The first driving circuit is constituted of a switching circuit which is capable of distributing an output of the second driving circuit to a plurality of video signal lines.

Abstract: A liquid crystal display device includes: a plurality of pixel circuits which is arranged in a matrix shape; a plurality of data lines; a selection unit which sequentially selects the plurality of pixel circuits for every group which is fewer in number than the number of rows of the pixel circuits; a control unit which sequentially changes the pixel circuits included in the groups; and a data signal supply unit which outputs a data signal to each data line. Each of the plurality of sequentially selected pixel circuits is connected to each of the different data lines.

Abstract: The present invention realizes proper driving circuits in a driving-circuit integral type liquid crystal display device which has an increased screen size. The liquid crystal display device includes a liquid crystal display panel and a driving circuit which supplies video signals to video signal lines formed on the liquid crystal display panel. The driving circuit is comprised of a first driving circuit which is formed in a step similar to a step for forming pixels provided to the liquid crystal display panel and a second driving circuit which is connected to the liquid crystal display panel after formation of the liquid crystal display panel. The first driving circuit is constituted of a switching circuit which is capable of distributing an output of the second driving circuit to a plurality of video signal lines.

Abstract: A liquid crystal display device includes: a drive circuit; and a plurality of divided display sections which are arranged parallel to each other in a predetermined direction. Each divided display section includes: a plurality of scanning lines which are arranged parallel to each other in the predetermined direction; a plurality of data signal lines, and a plurality of pixel circuits which are provided correspondingly to intersections of the scanning lines and the data signal lines . The drive circuit supplies a signal potential to the data signal line based on a data signal before selecting the scanning line which is included in one or more of the divided display sections, is arranged adjacent to the scanning line included in another divided display section, and is firstly selected and within a blanking period.

Abstract: A speed doubling circuit receiving display data in one frame period and outputting field A display data and field B display data in one frame period. A field conversion circuit converts the field A display data to have a highest gray-scale if the display data has a high gray-scale, and converts the field B display data to have a lowest gray-scale if the display data has a low gray-scale. Between the speed doubling circuit and field conversion circuit, an emphasis circuit is disposed which emphasizes each of the field A display data and field B display data in accordance with the display data one frame period before and the display data in the present frame period.

Abstract: The present invention provides a display device which can reduce motion picture blurring while suppressing the lowering of luminance, the lowering of contrast or the increase of electric power necessary for emission of light. In a hold-type display device which holds a display of gradations for 1 frame period, each pixel displays 1 gradation required by an external system by displaying a plurality of gradations within 1 frame period, and the plurality of gradations within 1 frame period is displayed based on voltages which are generated by gradation voltage generation circuits which differ from each other.

Abstract: The backlight device includes: a backlight including a plurality of light sources; and a backlight control part. The backlight includes a plurality of divided areas, and light sources disposed in each of the plurality of divided areas are chain-connected. The backlight control part includes at least one backlight control unit for controlling turning on and off of the backlight which includes the plurality of divided areas, with respect to the each divided area. The backlight control unit includes a selection unit for selecting one of divided areas, at least one backlight drive path. The selection unit selects the one of divided areas in a time division manner, and the light sources of the one of divided areas are driven by sharing the at least one backlight drive path in common.

Abstract: The display device including: a display panel; a backlight; a memory for converting frame rate of an input video signal and outputting a video signal; an interpolation frame generation unit for generating an interpolation frame based on the video signal output from the memory; a histogram generator for generating a histogram based on the input video signal; and a backlight brightness calculation unit for calculating a backlight control signal, the display device further comprising: wherein image data for display, which is obtained by an N-th frame of the input video signal, and image data of the interpolation frame generated based on the N-th frame and an (N+1)-th frame of the input video signal, is input to the display panel; and wherein the backlight control signal calculated based on the histogram generated based on the image data of the N-th frame is used for displaying the image data for display.

Abstract: In a display device which displays a black image by periodically inserting a black image, after the display of the black image, a first period in which a video signal different from a video signal for the black image is outputted to video signal lines is made different from a succeeding period in length.

Abstract: In a display device which displays a black image by periodically inserting a black image, after the display of the black image, a first period in which a video signal different from a video signal for the black image is outputted to video signal lines is made different from a succeeding period in length.

Abstract: The present invention reduces moving image blurring while suppressing the lowering of brightness, lowering of contrast and the increase of electricity necessary for light emission. A display device includes a first gradation voltage generation circuit which generates a first gradation voltage based on gradations of display data amounting to 1 screen displayed during 1 frame period, and a second gradation voltage generation circuit which generates a second gradation voltage based on the gradations of display data amounting of 1 screen displayed in 1 frame period, wherein the gradations of the respective pixels on the display data are displayed by performing a display based on the first gradation voltage and a display based on the second gradation voltage during 1 frame period. The first gradation voltage generation circuit and the second gradation voltage generation circuit respectively include a resistance voltage dividing circuit which is formed by connecting a plurality of resistances in series.

Abstract: In the case where one horizontal period becomes shorter as a high frame rate drive of 120 Hz or higher is introduced or the resolution is increased, the time for the writing in of a voltage to the holding capacitor of pixels cannot be sufficiently secured.

Abstract: There is provided a display device capable of delivering adequate video display performance even when a lighting period of a backlight is varied in accordance with the content or the like of image data. The device has circuits (8050, 8060) for varying a lighting period of a backlight (8090) for illuminating a display panel (8010) in accordance with image data (8002), setting information (8003), and the like from an external device; and circuits (8070, 8080) for adjusting the timing of start (and turning off) of lighting of the backlight in accordance with the length of the lighting period.

Abstract: To reduce moving image blurring with a simple circuit while an image quality of a still image is maintained, a display apparatus emphasizes and deemphasizes a change in display data along a temporal direction based upon preceding frame data and current frame data, emphasizes and deemphasizes a change in the emphasized and deemphasized display data along a spatial direction, and displays, with respect to a portion where the display data has been changed between frames, an image in which the change in display data is emphasized along both the temporal direction and the spatial direction, and another image in which the change in display data is deemphasized along both the temporal direction and the spatial direction within one rendering frame period.

Abstract: The present invention provides a display device which displays a black image by periodically inserting the black image, wherein after the display of the black image, a first period in which a video signal different from a video signal for the black image is outputted to video signal lines is made different from a succeeding period in length.

Abstract: An overdrive device corrects IN data by referring to a look-up table based on IN data, ODA data outputted from the look-up table, which is previous by one frame and ODB data outputted from the look-up table, which is previous by two frames.