Color display device

Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control

Reexamination Certificate

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Details

C345S072000, C345S077000, C345S083000, C345S088000

Reexamination Certificate

active

07071955

ABSTRACT:
A color display device includes a shutter type color display and signal processing means. The signal processing means has color conversion processing means for increasing a gradation level of a color signal having the highest gradation level while decreasing a gradation level of a color signal having the lowest gradation level when the gradation levels of the plural color signals are not equal one another, and for outputting a color signal has been processed to the shutter type color display. Further, a color display having a reflective member or a diffuse transmission member provided on a display screen or in the vicinity of the display screen, a color plasma display, or a color field emission display can also be used instead of the shutter type color display. Thus, even when chroma of the color display is low, a display in high chroma can be ensured.

REFERENCES:
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patent: 5414529 (1995-05-01), Terada et al.
patent: 5771108 (1998-06-01), Ikeda et al.
patent: 5801745 (1998-09-01), Wada et al.
patent: 6081254 (2000-06-01), Tanaka et al.
patent: 05-127635 (1993-05-01), None
patent: 06-291997 (1994-10-01), None
patent: 06-335013 (1994-12-01), None
patent: 09-247701 (1997-09-01), None
patent: 10-240198 (1998-09-01), None
patent: 02000112423 (2000-04-01), None
Korean Office Action dated Nov. 23, 2005.

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