Patent ID: 8269804
Filing Date: 2012-09-18
Classification: G09G

Abstract:
1. An image display apparatus for displaying an image on an image display panel having a plurality of pixels, each pixel including a plurality of subpixels of different colors, the apparatus comprising: a color data converter operable to convert an image data signal into pieces of color input data, the pieces of color input data corresponding to the different colors of subpixels of the image display panel, wherein a subpixel is a component of a pixel; an interpolation operator operable to interpolate consecutive sampling values of the pieces of input color data provided to the image display panel, wherein the consecutive sampling values are interpolated based on positions of subpixels within corresponding pixels with respect to the center of the corresponding pixel; a coefficient generator to generate interpolation coefficients corresponding to the pieces of input color data and based on types of colors of the pieces of input color data; a delay unit operable to hold the pieces of input color data for a clock cycle of a clocking signal; multipliers operable to multiply the held pieces of input color data with the interpolation coefficients to generate multiplication outputs after the clock cycle; an adder circuit operable to add the multiplication outputs to generate a sum, wherein the interpolation operator outputs pieces of output color data by correcting phases of the pieces of input color data based on the sum and positions of the subpixels in the pixels; a correction unit operable to correct signal levels of the pieces of output color data based on predetermined gains; an angle information calculator operable to calculate, for one of the pixels or for one of the subpixels, a direction of a viewer of the image display panel on the basis of a position of the viewer relative to the image display panel; and a gain setting unit operable to set the predetermined gains for the pieces of input color data to correct a luminance of the one subpixel, wherein the luminance level changes depending on a viewing direction of the viewer and the predetermined gains are set on the basis of a calculation result obtained by the angle information calculator.