Patent ID: 6252581
Filing Date: 2001-06-26
Classification: G09G

Abstract:
A color image signal generator for generating red, green and blue analog image signals based on first red, green and blue image data and on first brightness data, each of the first red, green and blue image data having a predetermined first bit number, the first brightness data having a predetermined second bit number, the color image signal generator comprising:a brightness data modifier for providing second brightness data based on the first brightness data, the second brightness data having a predetermined third bit number which is greater than the second bit number;a data multiplier arranged to multiply the second brightness data with the first red, green and blue image data for output of second red, green and blue image data, each of the second red, green and blue image data having a fourth bit number which is greater than the first and the third bit numbers; anda digital-to-analog converter for converting predetermined top bits of each of the second red, green and blue image data into analog signals.