Patent application number | Description | Published |
20080259216 | COLOR SIGNAL CONVERTING APPARATUS, VIDEO DISPLAY APPARATUS INCLUDING THE SAME, AND COLOR SIGNAL CONVERTING METHOD - According to one embodiment, a color signal converting apparatus includes: a minimum value detecting section detecting a minimum value signal having a smallest value among a plurality of input color signals; a difference extracting section extracting a difference between the minimum value signal detected by the minimum value detecting section and a reference value; a difference adding section adding the difference extracted by the difference extracting section to each of the plural color signals; and a saturation converting section converting saturation of each of the plural color signals to which the difference is added, according to a ratio of brightness of the plural input color signals and brightness of the plural color signals to which the difference is added by the difference adding section. | 10-23-2008 |
20090002308 | LIGHT EMISSION CONTROL APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS INCLUDING THE SAME - According to one embodiment, a light emission control apparatus controlling light emissions of plural light sources in a light emission device which includes the light sources in respective light source areas and lights a liquid crystal panel using the plural light sources has following sections: an initial value setting section setting initial control values of the plural light sources; an illumination value calculation section calculating an illumination value to illuminate the liquid crystal panel for the respective light source areas based on a spread characteristic of light emitted from the plural light sources, using the initial control values set by the initial value setting section; an additional value determination section determining an additional value to increase an emission intensity of the plural light sources when an illumination value of the light source areas corresponding to screen areas of the liquid crystal panel is smaller than a maximum display value for the respective screen areas, the additional value being determined based on a difference between the maximum display value and the illumination value; and a control value determination section correcting the initial control value according to the additional value determined by the additional value determination section and determining a light source control value to emit light from the light sources. | 01-01-2009 |
20090322796 | Video Signal Control Apparatus and Video Signal Control Method - According to one embodiments a video signal control apparatus includes an average luminance detector and a display luminance controller. The average luminance detector detects the average luminance of a video signal with respect to each frame. The display luminance controller controls the display luminance of a first frame using the average luminance of a second frame prior to the first frame. When luminance change from the average luminance of the first frame to that of the second frame exceeds a predetermined threshold, the display luminance controller replaces the average luminance of the second frame with that of the first frame to control the display luminance of the first frame based on the average luminance of the first frame. | 12-31-2009 |
20110007100 | BACKLIGHT CONTROLLER AND LIQUID CRYSTAL DISPLAY DEVICE - A backlight controller for controlling a backlight unit having a plurality of light sources arranged in a grid layout for illuminating a liquid crystal panel, the backlight controller including: a first calculator configured to calculate an average value and a standard deviation of control values for controlling the light sources, the control values being obtained from a feature quantity of an input image; a second calculator configured to calculate a ratio of the standard deviation to the average value; and a gain controller configured to control a gain to be applied to the control values based on the ratio calculated by the second calculator. | 01-13-2011 |
20120033054 | Stereoscopic Video Display Apparatus and Display Method - In one embodiment, a stereoscopic video display apparatus includes: a plane display unit including a display screen in which first to third subpixels having respectively different color components are arranged in a matrix form; and an optical plate. The plane display unit includes a configuration obtained by arranging a first subpixels and the second subpixels alternately on a first subpixel row, arranging the third subpixels on a second subpixel row adjacent to the first subpixel row, arranging the first subpixels and the second subpixels alternately on a third subpixel row adjacent to the second subpixel row to have a sequence opposite to that on the first subpixel row, arranging the third subpixels on a fourth subpixel row adjacent to the third subpixel row, and arranging a set of the first to fourth subpixel rows in the column direction of subpixels on the display screen repeatedly. | 02-09-2012 |
20120033055 | Stereoscopic Video Display Apparatus and Display Method - In one embodiment, a stereoscopic video display apparatus is configured to assign one subpixel column to each of a plurality of parallax images, and select three subpixels, which are the first to third subpixels, arranged consecutively in the column direction of subpixels with the third subpixel located in the center, as a pixel displaying each parallax image; cause pixels adjacent in the column direction of subpixels in each parallax image to share the first subpixel or the second subpixel; divide each of frames displaying a stereoscopic video into two subframes; assign one pixel from among the plurality of parallax images to each row in each subframe; display odd-numbered rows when displaying one of the first and second subframes; and display even-numbered rows when displaying the other of the first and second subframes. | 02-09-2012 |
20120033056 | Stereoscopic Video Display Apparatus and Display Method - In one embodiment, a stereoscopic video display apparatus includes: a plane display unit including a display screen in which first to third subpixels having respectively different color components are arranged in a matrix form; and an optical plate disposed to be opposed to the plane display unit and having a plurality of optical aperture parts. The plane display unit includes a configuration obtained by arranging the first subpixels on a first subpixel row, arranging the third subpixels on a second subpixel row adjacent to the first subpixel row, arranging the second subpixels on a third subpixel row adjacent to the second subpixel row, arranging the third subpixels on a fourth subpixel row adjacent to the third subpixel row, and arranging a set of the first to fourth subpixel rows in the column direction of subpixels on the display screen repeatedly. | 02-09-2012 |
20120033058 | Stereoscopic Video Display Apparatus and Display Method - In one embodiment, a stereoscopic video display apparatus is configured to divide each of frames displaying a stereoscopic video into two subframes; assign one pixel from among the plurality of parallax images to each row in each subframe; display parallax images of a first group from among the plurality of parallax images in odd-numbered rows and displaying parallax images of a remaining second group from among the plurality of parallax images in even-numbered rows, when displaying one of the first and second subframes; and display parallax images of the second group in odd-numbered rows and displaying parallax images of the first group in even-numbered rows when displaying the other of the first and second subframes. | 02-09-2012 |