Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2008-07-29
2008-07-29
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S055000, C345S063000
Reexamination Certificate
active
10433666
ABSTRACT:
A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
REFERENCES:
patent: 5352943 (1994-10-01), Tsukahara et al.
patent: 5801564 (1998-09-01), Gasparik
patent: 5987543 (1999-11-01), Smith
patent: 6154069 (2000-11-01), Ebihara
patent: 2004/0227544 (2004-11-01), Yin et al.
patent: 4-348385 (1992-12-01), None
patent: 5-48349 (1993-02-01), None
patent: 5-313609 (1993-11-01), None
patent: 6-337655 (1994-12-01), None
patent: 8-293745 (1996-11-01), None
patent: 09-219636 (1997-08-01), None
patent: 9-219636 (1997-08-01), None
patent: 93/00739 (1993-01-01), None
Office Action dated Mar. 14, 2008, from counterpart Chinese Appln. No. 01820203.9.
Endo Masuhiro
Kinjo Arata
Kotera Kouichi
Oda Hitoshi
Ookado Kazuo
Hitachi ULSI Systems Co. Ltd.
Hjerpe Richard
Miles & Stockbridge P.C.
Renesas Technology Corp.
Shapiro Leonid
LandOfFree
Semiconductor integrated circuit, liquid crystal drive... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor integrated circuit, liquid crystal drive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit, liquid crystal drive... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3916772