Patent ID: 7256763

Claim:
A method of driving a liquid crystal display, wherein the liquid crystal display comprises a liquid crystal display panel and an illuminating device; wherein the liquid crystal display panel has a matrix of a plurality of pixels arrayed two-dimensionally in a first direction and in a second direction crossing the first direction, and in the pixel matrix a plurality of pixel rows each made up of a group of pixels lined in the second direction are arrayed in the first direction and sequentially selected in each frame period from one end of the pixel matrix to the other end; wherein the illuminating device has a plurality of light sources facing the pixel matrix of the liquid crystal display panel and the plurality of light sources are arrayed in the first direction and divided into at least three light source areas facing at least three groups of pixel rows; wherein turn-on periods of the light source areas sequentially start in the each frame period when one of the at least three groups of pixel rows corresponding to the at least three light source areas is selected and the plurality of pixels belonging to the selected group of pixel rows begin to receive video signals; wherein the turn-on periods of the light source areas sequentially ends in the each frame period; wherein the at least three light source areas are a first light source area, a second light source area and a third light source area, the first light source area facing a middle area, with respect to the first direction, of the pixel matrix where a first group of the pixel rows is situated, the second light source area facing an area of the pixel matrix adjoining the middle area in the first direction where a second group of the pixel rows is situated which is selected before the first group of the pixel rows in the each frame period, the third light source area facing another area of the pixel matrix adjoining the middle area in the first direction where a third group of the pixel rows is situated which is selected after the first group of the pixel rows in the each frame period; wherein the turn-on period of the second light source area, the turn-on period of the first light source area and the turn-on period of the third light source area are sequentially start and end in that order; wherein the turn-on period of the second light source area ends after the turn-on period of the first light source area has started; wherein the turn-on period of the third light source area starts after the turn-on period of the first light source area has started and when or before the turn-on period of the second light source area ends.