Patent ID: 6864870
Filing Date: 2005-03-08
Classification: G09G

Abstract:
1. A liquid crystal display (LCD) controller generating control signals for displaying, in response to pixel data, pictures on a liquid crystal panel having a plurality of pixels, the LCD controller comprising: a dithering pattern register section, comprising a first, second, third, and fourth dithering pattern register each for storing binary data of a gray level having a denominator value, wherein the gray level of the binary data of each of the first, second, third, and fourth dithering pattern registers has a same bit number as the denominator value of its respective dithering pattern register; modular register counters for performing a counting operation to determine a binary value of a most significant bit of the gray levels in response to a frame clock, a line clock, and a pixel clock; multiplexers for generating data patterns for the gray levels in accordance with an output of the respective modular register counters; and a selection means for selecting and generating a corresponding bit of a data pattern corresponding to the pixel data provided on an LCD panel among the data patterns.