Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-08-23
1996-09-03
Saras, Steven
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345149, 345152, G09G 336, G09G 510, G09G 502
Patent
active
055528007
ABSTRACT:
According to this invention, a panel controller converts display data having 64 gray scale levels for a color CRT output from an RAMDAC into display data having 57 gray scale levels to perform display driving of a color LCD. The panel display controller has a function of generating 7 intermediate pseudo gray scales between the base frames of R, G, and B signals by a frame rate control method in the color LCD having 8 base gray scale levels of each of the R, G, and B signals to generate (180K colors) display data having 57 gray scale levels and a function of generating 3 intermediate pseudo gray scales between the base gray scales of the signals by a dither method to generate (24K colors) display data having 39 gray scale levels. The selection of the frame rate control or the dither method and the selection of the 512-color, 180-K-color, or 24-K-color display are arbitrarily performed, or these selection operations are automatically performed in accordance with a display mode.
REFERENCES:
patent: 4760387 (1988-07-01), Ishii et al.
patent: 4779083 (1988-10-01), Ishii et al.
patent: 4827255 (1989-05-01), Ishii
patent: 4921334 (1990-05-01), Akodes
patent: 5059962 (1991-10-01), Sekiya et al.
patent: 5059963 (1991-10-01), Fukuoka
patent: 5122783 (1992-06-01), Bassetti, Jr.
patent: 5155478 (1992-10-01), Sekiya et al.
patent: 5222212 (1993-06-01), Johary et al.
patent: 5266940 (1993-11-01), Shiraishi
PVGA1A Paradise Video Graphics Array (manual), Western Digital Imaging/Paradise Systems, Dec. 9, 1988.
Shimamoto Hajime
Uchikoga Hiroshi
Zenda Hiroki
Kabushiki Kaisha Toshiba
Saras Steven
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