Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2003-02-11
2008-01-15
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S087000, C345S090000, C345S098000, C345S100000, C345S089000
Reexamination Certificate
active
07319462
ABSTRACT:
In a display apparatus in accordance with the present invention, (i) a sampling circuit for sampling video signals supplied via a plurality of video lines and (ii) connecting lines for connecting the video lines with respective analog switch groups in the sampling circuit, the connecting lines being provided so as to intersect with the video lines, are integrally formed on a single substrate, and a delay adjustment section is further provided for delaying the video signals which pass through the video lines, in order to compensate the difference of the delay between the video signals passing through the connecting lines. With this arrangement, the difference of the delay between the pathways of the video signals from the video lines to the sampling circuit is compensated and this makes it possible to eliminate the non-uniformity of luminance looking like lines in the display apparatus so as to improve the display quality of the same.
REFERENCES:
patent: 4335380 (1982-06-01), Wright
patent: 5287025 (1994-02-01), Nishimichi
patent: 5619225 (1997-04-01), Hashimoto
patent: 6232947 (2001-05-01), Miyawaki et al.
patent: 6337677 (2002-01-01), Higashi
patent: 6373458 (2002-04-01), Yamakura et al.
patent: 6618043 (2003-09-01), Washio et al.
patent: 6693617 (2004-02-01), Sasaki et al.
patent: 6697040 (2004-02-01), Imajo et al.
patent: 6784880 (2004-08-01), Fujita et al.
patent: 6864874 (2005-03-01), Ozawa
patent: 6876352 (2005-04-01), Sato et al.
patent: 0554051 (1993-01-01), None
patent: 7-175038 (1995-07-01), None
patent: 7-319428 (1995-12-01), None
patent: 08-262994 (1996-10-01), None
patent: 9-325370 (1997-12-01), None
Korean Office Action mailed Dec. 21, 2004 (w/English translation thereof).
Ogawa Yasuyuki
Sakai Tamotsu
Hjerpe Richard
Nguyen Jennifer T.
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
LandOfFree
Display apparatus, driving method, and projection 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, driving method, and projection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display apparatus, driving method, and projection apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3965150