Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-11-14
2006-11-14
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C349S061000
Reexamination Certificate
active
07136044
ABSTRACT:
The invention provides a display panel9; a gain variable liquid crystal driving circuit10for driving the display panel9; a backlight operating circuit6for operating, based on a lamp control signal, a backlight8for illuminating the display panel9; a level extension signal calculating circuit11for outputting an optical output level extension signal Lout by extending a predetermined output level used to operate the backlight8; and a white peak improving circuit5for receiving the optical output level extension signal, and for outputting a lamp control signal, whose white peak level has been adjusted according to a change in brightness of a scene and for calculating and outputting a video amplitude gain as a coefficient to a gain variable driving amplifier circuit3, wherein the lamp control signal is outputted when the brightness of a scene is above normal level, and the video amplitude gain is outputted when the brightness is at normal level.
REFERENCES:
patent: 5717422 (1998-02-01), Fergason
patent: 6111559 (2000-08-01), Motomura et al.
patent: 6795053 (2004-09-01), Funamoto et al.
patent: 05-066501 (1993-03-01), None
patent: 06-102484 (1994-04-01), None
patent: 06-160811 (1994-06-01), None
patent: 09-244548 (1997-09-01), None
patent: 11-065528 (1999-03-01), None
patent: 11-109317 (1999-04-01), None
patent: 2002-156951 (2002-05-01), None
patent: 2002-258401 (2002-09-01), None
patent: WO 00/68926 (2000-11-01), None
Nikkei Electronics No. 757 (published on Nov. 15, 1999).
Harness & Dickey & Pierce P.L.C.
Hjerpe Richard
Pervan Michael
Sharp Kabushiki Kaisha
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