Patent ID: 8411116
Filing Date: 2013-04-02
Classification: G09G

Abstract:
1. A method of lighting a liquid crystal display, comprising: calculating a luminance for a plurality of pixels in an image in a liquid crystal display (LCD) based upon a light spread function and a brightness value of light emitting diodes (LEDs); changing the brightness value of one or more LEDs based upon a consideration of a gray value of the plurality of pixels and luminance generated by other LEDs; performing iterative steps for changing the LED brightness values to successively cover a pixel gray value of the plurality of pixels; and setting the brightness value of the LEDs to a brightness value substantially greater than or equal to a gray value of a majority of the pixels of the image, and further comprising establishing an influence queue for each pixel in the plurality of pixels by considering the influences of the LEDs on each pixel in the plurality of pixels.