Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2005-11-22
2008-08-05
Lewis, David L (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S098000, C345S204000, C345S210000, C326S062000, C326S081000, C327S333000
Reexamination Certificate
active
07408544
ABSTRACT:
A display device includes a pixel driver circuit. Each of level converter circuits in the pixel driver circuit has: an input terminal supplied with a signal swinging between a first voltage and a second voltage lower than the first voltage; a first first-conductivity-type transistor having a gate electrode coupled to the input terminal, and a source region coupled to ground; a second second-conductivity-type transistor having a gate electrode coupled to a drain region of the first transistor, a source region coupled to a power supply, and a drain region coupled to an output terminal; one circuit element among a diode, a resistor and a fourth second-conductivity-type transistor, coupled between the gate electrode of the second transistor and the power supply; a third first-conductivity-type transistor having a source region coupled to the input terminal, a drain region coupled to the output terminal, and a gate electrode supplied with a dc voltage.
REFERENCES:
patent: 3801831 (1974-04-01), Dame
patent: 5498991 (1996-03-01), Tanoi
patent: 5502406 (1996-03-01), Traynor et al.
patent: 5677641 (1997-10-01), Nishio et al.
patent: 6034549 (2000-03-01), Matsumoto et al.
patent: 6081131 (2000-06-01), Ishii
patent: 6107857 (2000-08-01), Orisaka et al.
patent: 6359491 (2002-03-01), Cairns et al.
patent: 6522323 (2003-02-01), Sasaki et al.
patent: 04-242319 (1991-01-01), None
patent: 6-113771 (1991-10-01), None
patent: 06-037624 (1992-07-01), None
patent: 06-204850 (1993-01-01), None
Ode Yukihide
Okumura Haruhisa
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Hitachi , Ltd.
Hitachi Device Engineering & Co., Ltd.
Lewis David L
LandOfFree
Level converter circuit and a liquid crystal display device... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Level converter circuit and a liquid crystal display device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Level converter circuit and a liquid crystal display device... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4010799