Patent ID: 7315314
Filing Date: 2008-01-01
Classification: G09G

Abstract:
1. An image display apparatus, comprising: a plurality of image-forming devices that are driven via a plurality of row and column wirings, and used to form an image; and a scan unit that sequentially selects the row wirings, wherein the image display apparatus further comprises an adjusted image data calculation unit that calculates an adjusted image data, and a modulator that outputs a modulation signal that is applied to the column wiring, wherein the adjusted image data calculation unit comprises a discrete adjusted image data calculation unit which calculates adjusted image data with regard to image data reference values correspondingly to each of reference positions, the image data reference values are a plurality of discrete values, and the reference positions are a plurality of positions along at least the row wiring, and an adjusted image data interpolation unit for calculating adjusted image data corresponding to an image data other than the image data reference value, correspondingly to a position other than the reference position, by interpolating the adjusted image data calculated with regard to the image data reference value, and wherein the discrete adjusted image data calculation unit comprises a comparator for comparing the image data with the image data reference value, and an adder for summing an output from the comparator per each of a plurality of areas corresponding to each of the reference positions, and the modulator outputs the modulation signal based on the adjusted image data calculated by the adjusted image data interpolation unit.