Abstract: An interpolation frame generation unit includes a first unit that uses, with respect to each of pixel positions, which are determined to be a motionless region by a region determination unit, in an interpolation frame, any of an image at the same pixel position in the preceding frame, an image at the same pixel position in the current frame, and an average of the images at the same pixel position in the preceding frame and the current frame as an interpolated image at the pixel position, and a second unit that extracts, with respect to each of pixel positions, which are determined to be a motion region by the region determination unit, in the interpolation frame, an image corresponding to the pixel position in the interpolation frame from either one of the preceding frame and the current frame on the basis of a motion vector for a block including the pixel position and uses the extracted image as an interpolated image.

Abstract: An image signal processor includes a controller configured to generate a red output signal, a green output signal, a blue output signal and a fourth color output signal in accordance with image input signals. A fourth color light component enables to reproduce a color outside the range of a color reproducible by the red light component, the green light component and the blue light component. The controller generates the fourth color output signal on the basis of a reference signal corresponding to a color different from a complementary color of a color reproduced by the fourth color light component.

Abstract: An image data conversion device includes an image data input unit to which image data formed of a plurality of first pixel data, each including values of three basic colors of red, green and blue, is inputted; and a color converter configured to convert first pixel data into second pixel data including at least the values of the three basic colors and a value of a fourth color, by processing each of the plurality of first pixel data forming the image data. The color converter includes a controller configured to control changes in the value of the fourth color included in the second pixel data corresponding to the first pixel data, on the basis of the values of the three basic colors included in the first pixel data.

Abstract: The invention provides an organic LED display device of the digital drive type which has a display panel comprising a plurality of pixels 51. Each of the pixels 51 comprises an organic EL element 50, a drive transistor TR2 for effecting or interrupting the passage of current through the EL element 50 in response to the input of an on/off control signal, a write transistor TR1 to be brought into conduction upon receiving scanning voltage applied thereto from a scanning driver, a capacitance element C to be supplied with data voltage from a data driver by the write transistor TR1 conducting, and a comparator 9 for comparing a predetermined ramp voltage with the output voltage of the capacitance element C and supplying the result of comparison to the drive transistor TR2 as the on/off control signal.

Abstract: A projection-type image display device has a solid light source and a light valve, and causes light emitted from the solid light source to perform scanning on the light valve along a predetermined scanning line. The projection-type image display device is provided with a modulation amount controller configured to control a modulation amount of the light valve according to an input video signal which is a video signal inputted to the projection-type image display device, and an output controller configured to determine a reference output according to the input video signal. The output controller controls an output of the solid light source according to the reference output.

Abstract: A luminance control method for an organic EL display comprises a first step of calculating a luminance accumulation value for each screen on the basis of a video input signal, and a second step of controlling the amplitude of the video input signal on the basis of the luminance accumulation value calculated in the first step and feeding to the organic EL display the video signal whose amplitude has been controlled.

Abstract: A light source controller includes a light source driver, a light amount sensor, a memory configured to store property information indicating a relationship between the drive current and the outgoing light amount for each level of the environmental temperature of the solid-state light source, and a controller configured to control the drive current supplied from the light source driver. The controller obtains the property information corresponding to the environmental temperature of the solid-state light source according to the relationship between the drive current and the outgoing light amount, and controls the drive current according to the obtained property information so as to bring the outgoing light amount close to a target light amount.

Abstract: A luminance control method for an organic EL display comprises a first step of calculating a luminance accumulation value for each screen on the basis of a video input signal, and a second step of controlling the amplitude of the video input signal on the basis of the luminance accumulation value calculated in the first step and feeding to the organic EL display the video signal whose amplitude has been controlled.

Abstract: There is provided a stereoscopic video display that enables a viewer to recognize a more real stereoscopic video. A light source device 2 comprises a backlight 21 and a pinhole array plate 22. A liquid crystal display panel driver 5 feeds a pixel driving signal to a liquid crystal display panel 3, to form a pixel region 3a composed of a plurality of pixels respectively corresponding to pinholes 22a. Each of the pixels composing the pixel region 3a controls an amount of light transmission with respect to a light beam in each direction from the corresponding pinhole 22a. Consequently, the intensity of the light beam in each direction is reproduced. Lines respectively connecting the centers of the pinholes 22a and the centers of the pixel regions 3a are not parallel to one another, and are so set as to cross at one point of a position corresponding to the standard distance between the video display panel 3 and a viewer Z.

Abstract: An uneven display correction method including a first step of dividing a display area of a display panel into a plurality of unit areas, the first step setting one arbitrary unit area among the unit areas at a reference area, the first step previously determining a value as a correction parameter in each unit area, the value corresponding to a difference between a light-emission start gradation level of the unit area and the light-emission start gradation level of the reference area; and a second step of correcting an input video signal based on the correction parameter determined in each unit area.

Abstract: A display apparatus includes an RGB-RGBX signal converter having a variable RGB-RGBX conversion ratio and configured to convert an RGB signal into an RGBX signal. An RGBX type self light-emitting display is configured to display video, based on the RGBX signal obtained by the RGB-RGBX signal converter. A controller is configured to control the RGB-RGBX conversion ratio utilized for converting the RGB signal into the RGBX signal, in accordance with a display position of the RGB signal.

Abstract: A display apparatus includes an RGB-RGBX signal converter configured to convert digital R, G, and B input signals into digital R, G, B, and X input signals. A D/A converter is configured to convert the digital R, G, B, and X input signals into analog R, G, B, and X output signals. An RGBX type self light-emitting display is configured to receive the analog R, G, B, and X output signals. A calculator is configured to calculate an accumulated power consumption value of the self light-emitting display for each screcn, based on the digital R, G, B, and X input signals. A controller is configured to control amplitudes of the respective analog R, G, B, and X input signals by controlling a reference voltage supplied to the D/A converter based on the accumulated power consumption value, and to supply the respective amplitudeaontrolled analog R, G, B, and X input signals to the self light-emitting display.

Abstract: The invention provides a flat display device which comprises for pixels arranged along drive lines a voltage drop calculator 27 for calculating a voltage drop occurring in accordance with the position of each pixel, and a video signal converter 30 and a lookup table 31 for correcting the input signal to be supplied to the pixel in accordance with the magnitude of the calculated voltage drop, whereby crosstalk due to the voltage drop is prevented.

Abstract: A color space correction circuit in a display apparatus comprises: means for holding optimal R, G and B correction values at chromaticity coordinate points corresponding to a white, primary colors and complementary colors, respectively, in a color reproduction region of a display on a chromaticity diagram; means for connecting the respective chromaticity coordinate points corresponding to the primary colors and the complementary colors to the chromaticity coordinate point corresponding to the white in the color reproduction region of the display on the chromaticity diagram, thereby dividing the color reproduction region of the display into a plurality of areas and judging to which area the chromaticity coordinate points corresponding to input signals belong; and means for correcting R, G and B values for the input signals based on optimal R, G and B correction values corresponding to the chromaticity coordinate points that correspond to three vertexes of the area to which the chromaticity coordinate points co

Abstract: In a self-luminous type display in which one pixel includes four unit pixels of RGBW, a signal processing circuit includes first, second and third parts. The first part subtracts a minimum value in RGB input signals from each input signal of RGB. The second part calculates an RGBW signal corresponding to the case in which all the RGB input signals are the minimum value, based on an RGB signal value for realizing target white when all the RGB input signals are a maximum value. The third part determines the RGBW signal by adding a signal corresponding to each RGB subtraction result to the RGBW signal calculated by the second part. Each RGB subtraction result is calculated by the first part.

Abstract: There are provided image taking means for taking an image displayed on a display panel on which the non-uniformity of the display is to be corrected, and correction value calculating means for generating the correction value for the non-uniformity of the display with respect to each luminescence area on the display panel based on the image taken by the image taking means in a state where all pixels on the display panel produce luminescence.

Abstract: The invention provides an organic LED display device of the digital drive type which has a display panel comprising a plurality of pixels 51. Each of the pixels 51 comprises an organic EL element 50, a drive transistor TR2 for effecting or interrupting the passage of current through the EL element 50 in response to the input of an on/off control signal, a write transistor TR1 to be brought into conduction upon receiving scanning voltage applied thereto from a scanning driver, a capacitance element C to be supplied with data voltage from a data driver by the write transistor TR1 conducting, and a comparator 9 for comparing a predetermined ramp voltage with the output voltage of the capacitance element C and supplying the result of comparison to the drive transistor TR2 as the on/off control signal.

Abstract: The present invention provides a display device comprising a display having an arrangement of a plurality of pixels, a drive IC for supplying to each pixel of the display data voltage or data current corresponding to a video signal fed from the outside, comparing/calculating unit for supplying the video signal to the drive IC, and a current monitor unit for measuring the total quantity of currents to have been passed through a plurality of pixels of the display. The comparing/calculating unit derives the sum of currents to be passed through each pixel of the display based on the values of the video signals for each pixel of the display, to correct the video signals for each pixel of the display based on the derived value and measurement value obtained by the current monitor unit.

Abstract: When an input detection unit has detected that no user operation has been performed to an organic EL display apparatus for a predetermined period of time or when a processing detection unit has detected that a predetermined processing is being performed, the input detection unit or the processing detection unit outputs an instruction to a reference voltage adjusting unit to modify a reference voltage referenced by a DAC unit upon conversion to an analog output signal.

Abstract: A luminance control method for an organic EL display comprises a first step of calculating a luminance accumulation value for each screen on the basis of a video input signal, and a second step of controlling the amplitude of the video input signal on the basis of the luminance accumulation value calculated in the first step and feeding to the organic EL display the video signal whose amplitude has been controlled.