Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-01-04
2011-01-04
Nguyen, Chanh (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
07864155
ABSTRACT:
A display control circuit includes a vertical timing control circuit that generates first and second start signals, a panel driving unit that sequentially drives a plurality of OCB liquid crystal pixels in units of one row under the control of the first start signal to hold pixel voltages for gradation display in the pixels PX of the driven row, and that sequentially drives the pixels in units of at least one row under the control of the second start signal to hold pixel voltages for black insertion in the pixels of the driven row, and a light source driving unit that drives a plurality of backlight sources arranged substantially in parallel to the rows of pixels. In particular, the light source driving unit is configured to start, in synchronism with the first start signal, an operation for sequentially blinking the backlight sources with a predetermined duty ratio. The predetermined duty ratio is determined in accordance with a dimmer signal from outside such that the predetermined duty ratio, at a maximum value thereof, is not greater than a ratio of a holding period of the pixel voltage for gradation display to a sum of the holding period of the pixel voltage for gradation display and a holding period of the pixel voltage for black insertion.
REFERENCES:
patent: 2003/0038770 (2003-02-01), Lee et al.
patent: 2004/0001054 (2004-01-01), Nitta et al.
patent: 2004/0056825 (2004-03-01), Min et al.
patent: 2004/0113900 (2004-06-01), Abe et al.
patent: 2005/0078080 (2005-04-01), Kang et al.
patent: 11-109921 (1999-04-01), None
patent: 2001-183622 (2001-07-01), None
patent: 2002-202491 (2002-07-01), None
patent: 2003-44007 (2003-02-01), None
patent: 2003-280600 (2003-10-01), None
patent: 2003-295156 (2003-10-01), None
patent: 2004-157373 (2004-06-01), None
U.S. Appl. No. 11/441,091, filed May 26, 2006, Kawaguchi.
U.S. Appl. No. 11/217,462, filed Sep. 2, 2005, Kawaguchi et al.
Nguyen Chanh
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Park Sanghyuk
Toshiba Matsushita Display Technology Co., Ltd.
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