Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2007-03-06
2007-03-06
Awad, Amr A. (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S087000, C345S208000, C345S212000, C345S213000, C345S098000, C345S100000
Reexamination Certificate
active
10492046
ABSTRACT:
Amplifier circuits (AMPi, AMPj) are provided corresponding to data lines (DLi, DLj) arranged corresponding to columns of display pixels (PX). In the amplifier circuit, a non-inversion input of a differential amplifier circuit (32) is connected to the corresponding data line, and an inversion input node (N2) is connected to a capacitance element (34). Before pixel data of a displaying pixel element is read onto the data line, the non-inversion input of the differential amplifier circuit is precharged to a predetermined voltage level, and an output node of the differential amplifier circuit is coupled to the inversion input node (N2). The differential amplifier circuit operates as a voltage follower, and the capacitance element stores a comparison reference voltage including information corresponding to an offset of the differential amplifier circuit. Thereafter, data of the displaying pixel element is read onto the data line, and is amplified by the amplifier circuit so that the pixel data can be accurately amplified while canceling the offset of the differential amplifier circuit.
REFERENCES:
patent: 5440272 (1995-08-01), Orisaka et al.
patent: 5459483 (1995-10-01), Edwards
patent: 5627557 (1997-05-01), Yamaguchi et al.
patent: 5739803 (1998-04-01), Neugebauer
patent: 5798747 (1998-08-01), Moraveji
patent: 5822264 (1998-10-01), Tomishima et al.
patent: 6064362 (2000-05-01), Brownlow et al.
patent: 6590552 (2003-07-01), Yokoyama et al.
patent: 6756962 (2004-06-01), Akimoto et al.
patent: 6784865 (2004-08-01), Akimoto et al.
patent: 56-120220 (1981-09-01), None
patent: 59-154808 (1984-09-01), None
patent: 61-69283 (1986-04-01), None
patent: 61-74481 (1986-04-01), None
patent: 4-56888 (1992-02-01), None
patent: 4-75389 (1992-07-01), None
patent: 4-291393 (1992-10-01), None
patent: 6-67151 (1994-03-01), None
patent: 7-160226 (1995-06-01), None
patent: 7-181446 (1995-07-01), None
patent: 9-320291 (1997-12-01), None
patent: 11-330874 (1999-11-01), None
patent: 2000-356974 (2000-12-01), None
patent: 2001-292041 (2001-10-01), None
patent: 2001-298333 (2001-10-01), None
patent: 2002-23705 (2002-01-01), None
patent: 2002-290172 (2002-10-01), None
Awad Amr A.
Gokhale Sameer
McDermott Will & Emery LLP
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3793689