Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-11-27
2007-11-27
Lewis, David L. (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S087000, C345S096000
Reexamination Certificate
active
10823657
ABSTRACT:
The invention provides a driving method for an electro-optical apparatus, the electro-optical apparatus, and electronic equipment in which unevenness of luminance in the vertical direction can be controlled. A data signal is written to pixels in a first sub field SF1and a non-data signal, having the same polarity as the data signal, and of the maximum voltage is written to the pixels in a second sub field SF2in each frame. When proceeding from SF1to SF2, variations in potential applied to each signal line can be decreased, and the amount of leakage of each pixel electrode potential is reduced. After having obtained a black display (in the case of a normally white mode) by writing the non-data signal, a data signal having the opposite polarity from the data signal in the previous frame is written to the pixels. Since a black display is in the stable area of a V-T curve of the liquid crystal, and variations in transmittance ratio can be small even when the voltage is varied to some extent, variations in transmittance rate of the liquid crystal at the each pixel, that is, unevenness of luminance when proceeding from the SF2to the subsequent frame SF1is small.
REFERENCES:
patent: 5867234 (1999-02-01), Takano et al.
patent: 6064404 (2000-05-01), Aras et al.
patent: 6342881 (2002-01-01), Inoue
patent: 6396469 (2002-05-01), Miwa et al.
patent: 6784863 (2004-08-01), Yanagi et al.
patent: 6819311 (2004-11-01), Nose et al.
patent: 6873311 (2005-03-01), Yoshihara et al.
patent: 6873313 (2005-03-01), Washio et al.
patent: 6965367 (2005-11-01), Tanaka et al.
patent: 2002/0084969 (2002-07-01), Ozawa
patent: 2004/0196415 (2004-10-01), Kimura et al.
patent: A-1149932 (1997-05-01), None
patent: A-1236464 (1999-11-01), None
patent: 1 594 022 (2005-11-01), None
patent: A 8-334741 (1996-12-01), None
patent: A-10-198321 (1998-07-01), None
patent: A-11-109921 (1999-04-01), None
patent: A-11-119189 (1999-04-01), None
patent: A 2000-10076 (2000-01-01), None
patent: 2001-042282 (2001-02-01), None
patent: A-2001-343922 (2001-12-01), None
patent: A-2002-175057 (2002-06-01), None
patent: 2002-215111 (2002-07-01), None
patent: 2002-341310 (2002-11-01), None
patent: A-2002-366124 (2002-12-01), None
patent: A-2003-036056 (2003-02-01), None
patent: 2000-0064278 (2000-11-01), None
patent: 2001-0093034 (2001-10-01), None
patent: WO 02/097523 (2002-12-01), None
Lewis David L.
Oliff & Berridg,e PLC
Seiko Epson Corporation
LandOfFree
Driving method for electro-optical 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 Driving method for electro-optical apparatus,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving method for electro-optical apparatus,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3829442