Computer graphics processing and selective visual display system – Display driving control circuitry – Adjusting display pixel size or pixels per given area
Reexamination Certificate
2001-03-26
2008-09-16
Nguyen, Kevin M. (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Adjusting display pixel size or pixels per given area
C345S100000, C345S469100
Reexamination Certificate
active
07425970
ABSTRACT:
A display device having a display matrix including a pixel border of width x and located around the edge locations of the matrix for improved viewability. In particular, the border can be several pixels wide, e.g., 1<x<5. In one embodiment, the border region is two pixels wide and surrounds a display region in which images are generated from a frame buffer memory. Both the border region and the display region are implemented using a negative mode passive display matrix using liquid crystal display (LCD) technology. The pixels of the border are controllable between an on state and an off state and have an adjustable threshold voltage level. In one embodiment, the display screen is a negative mode display in which the pixels are normally black when off. The pixel border is useful in providing contrast in display modes having a white background with black characters displayed therein.
REFERENCES:
patent: 4620289 (1986-10-01), Chauvel
patent: 4731742 (1988-03-01), Nishi et al.
patent: 4814756 (1989-03-01), Chauvel
patent: 4824212 (1989-04-01), Taniguchi
patent: 5038297 (1991-08-01), Hannah
patent: 5086295 (1992-02-01), Boettcher et al.
patent: 5355443 (1994-10-01), Kim et al.
patent: 5513028 (1996-04-01), Sono et al.
patent: 5559529 (1996-09-01), Maher
patent: 5657043 (1997-08-01), Fukui et al.
patent: 5719648 (1998-02-01), Yoshii et al.
patent: 5754186 (1998-05-01), Tam et al.
patent: 5784132 (1998-07-01), Hashimoto
patent: 5805149 (1998-09-01), Yuki et al.
patent: 5825343 (1998-10-01), Moon
patent: 5838334 (1998-11-01), Dye
patent: 5844539 (1998-12-01), Kitagawa
patent: 6018331 (2000-01-01), Ogawa
patent: 6064359 (2000-05-01), Lin et al.
patent: 6100858 (2000-08-01), Tran
patent: 6140992 (2000-10-01), Matsuzaki et al.
patent: 6181313 (2001-01-01), Yokota et al.
patent: 6195078 (2001-02-01), Dinwiddie et al.
patent: 6204895 (2001-03-01), Nakamura et al.
patent: 6288704 (2001-09-01), Flack et al.
patent: 6323834 (2001-11-01), Colgan et al.
patent: 6323849 (2001-11-01), He et al.
patent: 6476821 (2002-11-01), Sawada et al.
patent: 6535188 (2003-03-01), Morimoto
patent: 6577291 (2003-06-01), Hill et al.
patent: 6590592 (2003-07-01), Nason et al.
patent: 6597373 (2003-07-01), Singla et al.
patent: 0394814 (1990-04-01), None
patent: 0394814 (1990-10-01), None
patent: 0283235 (1988-09-01), None
patent: 2214342 (1989-08-01), None
Fraser Sherridythe
Gettemy Shawn R.
Lum David W.
Nguyen Kevin M.
Palm Inc.
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