Patent ID: 7218316
Filing Date: 2007-05-15
Classification: G09G

Abstract:
1. An image signal processing apparatus to be used for an image display apparatus provided with a display panel having scan-wiring lines, modulation lines, and display elements that are driven via said scan-wiring lines and modulation lines; a scanning circuit for supplying scanning signals to said scan-wiring lines according to such a scanning method as to select a plurality of adjoining scan-wiring lines simultaneously in each selection period while changing the set of scan-wiring lines to be selected simultaneously so that the same scan-wiring line is selected two or more times in each frame; and a modulation circuit for supplying modulation signals to said modulation lines, wherein: said image signal processing apparatus comprises filter means for performing, on received image data, signal processing for compensating for a reduction in resolution in a vertical scanning direction that is caused by said scanning method of said scanning circuit, and for supplying resulting image data to said modulation circuit; and a normalized vertical spatial frequency response characteristic of said filter means satisfies 0 dB<G