Patent ID: 6104364
Filing Date: 2000-08-15
Classification: G09G

Abstract:
A liquid crystal display driving device comprising:a comparator circuit which compares input pixel data and preceding input pixel data, said preceding input pixel data being said input pixel data delayed by a clock cycle, said comparator circuit generating a discrimination signal, in response to said comparison, indicative of whether said input pixel data is coincident with said preceding input pixel data;a liquid crystal display driving circuit which receives said input pixel data and outputs driving signals to a liquid crystal display through output terminals coupled to said liquid crystal display; anda switch control circuit connected to said liquid crystal display driving circuit, said switch control circuit being controlled by said discrimination signal to short-circuit a first output terminal having data corresponding to said input pixel data and a second output terminal having data corresponding to said preceding input pixel data when said discrimination signal indicates that said input pixel data is coincident with said preceding input pixel data.