Patent ID: 7088316
Filing Date: 2006-08-08
Classification: G09G

Abstract:
1. A color adjustment device for a plasma display panel, comprising: a look up table, wherein the look up table stores a plurality of gray scale data, selects a data from the plurality of gray scale data according to a received gray scale input value, then outputs the selected gray scale data; and an error diffusion circuit, receiving the selected gray scale data output from the look up table to perform an error adjustment, wherein the error diffusion circuit comprises: an error value provision device, providing an error value; an adder, adding the gray scale data to the error value for performing an add operation, and outputting a first data that is obtained from the add operation; an operation and discriminance unit, receiving the first data, dividing the first data by a predetermined value to obtain a quotient, and outputting an integer portion of the quotient; a multiplier, multiplying the integer portion of the quotient by the predetermined value and outputting a result value from the multiplication; and a subtractor, receiving an output from the multiplier, subtracting the first data from the output of the multiplier, providing a second data that is obtained from the subtraction to the error value provision device.