Patent ID: 8253756
Filing Date: 2012-08-28
Classification: G09G

Abstract:
1. A circuit for performing dithering of pixel data on a display, the circuit comprising: a lookup table module utilized for storing a lookup table, the lookup table used for storing a plurality of binary dithering parameters, each binary dithering parameter of the plurality of binary dithering parameters generated by performing encoding of a corresponding odd pixel dithering parameter and a corresponding even pixel dithering parameter; a dithering parameter decoder utilized for receiving a first dithering parameter looked up in the lookup table, and generating a second dithering parameter and a third dithering parameter from the first dithering parameter, wherein the second dithering parameter corresponds to an odd pixel, and the third dithering parameter corresponds to an even pixel; a first adder comprising: a second adder comprising: an overflow handling module utilized for detecting overflow of the dithered odd pixel parameter and the dithered even pixel parameter, the overflow handling module generating an output odd pixel parameter according to the dithered odd pixel parameter, and generating an output even pixel parameter according to the dithered even pixel parameter for performing display on the display according to the output odd pixel parameter and the output even pixel parameter.