Patent Number: 7,042,430

Title: Liquid crystal display device having stabilized drive circuit

Abstract: A liquid crystal display device has a liquid crystal display panel and a drive circuit for supplying gray scale voltages to pixels in the liquid crystal display panel. The drive circuit selects desired gray scale voltage levels from a gray scale voltage varying with time in a staircase fashion, in accordance with display data, and supplies the selected gray scale voltage levels to the pixels. The drive circuit includes a stabilizer circuit provided to a gray scale voltage line for supplying the gray scale voltage varying with time.

Inventors: Isami; Hironobu (Chiba, JP), Takemoto; Iwao (Mobara, JP), Matsumoto; Katsumi (Mobara, JP)

Assignee: Hitachi, Ltd.

International Classification: G09G 3/36 (20060101)

Expiration Date: 5/09/02018