Patent ID: 8482510
Filing Date: 2013-07-09
Classification: G09G,H05B

Abstract:
1. A method of driving a light source comprising a plurality of light-emitting blocks, each of the light-emitting blocks comprising a first color light source, a second color light source and a third color light source, the method comprising: differently setting reference duty ratios for driving signals of first, second and third colors in accordance with a plurality of local dimming driving modes of a light source module, the local dimming driving mode being determined using representative image data corresponding to each of a plurality of image blocks, which correspond to the plurality of light-emitting blocks, respectively; applying a driving signal of a substantially equal peak current level to the light source module in accordance with the driving mode; and driving the first, second and third color light sources by using a driving current having a reference duty ratio set in accordance with the driving mode and the equal peak current level in accordance with the driving mode, wherein the peak current levels of the local dimming driving modes are the same as each other, and the reference duty ratios of the local dimming driving modes are different from each other.