Computer graphics processing and selective visual display system – Computer graphics processing – Character generating
Reexamination Certificate
2004-04-30
2008-08-12
Lefkowitz, Sumati (Department: 2629)
Computer graphics processing and selective visual display system
Computer graphics processing
Character generating
C345S467000, C345S469100, C345S471000
Reexamination Certificate
active
07411589
ABSTRACT:
Methods and apparatus are provided for a color liquid crystal display (CLCD). The apparatus includes a processor coupled to the CLCD for receiving a character code and a color code and translating them into character and color pixel arrays that are overlaid and summed to produce a composite pixel array corresponding to the CLCD pixel array, where each entry in the composite array is used in conjunction with a color table to establish drive levels for each pixel in the CLCD. The character pixel array includes gray level color mixing and the color pixel array includes spatial shading color mixing, so that the composite array uses both techniques to determine the individual CLCD pixel drive levels to provide a wider range of color choices without significant color dependence on viewing angle.
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Wright, S.L. et al., “17.4: Low-cost Method to Improve Viewing-Angle Characteristics of Twisted-Nematic Mode Liquid-Crystal Display,” SID 02 DIGEST, vol. XXXIII, 2002, pp. 717-719.
Haim Victoria P.
Triplett James L.
Zulch, III Harold A.
Carter III Robert E
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
Lefkowitz Sumati
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