Driving method for electro-optical apparatus,...

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

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

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