Sequential color display device

Details Sequential color display device Sequential color display device

1997-04-08

2000-05-30

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 50, 359142, 34082522, 235380, 368 10, G02F 1136, G02F 11335

Patent

active

060696761

ABSTRACT:
Red, green and blue light sources, and a shutter are provided. Photosensors are provided for detecting the luminance of each of the light sources. A controller is provided for sequentially operating each of the light sources, the shutter, and the photosensor in synchronism with each other at regular intervals. A luminance control circuit is provided for comparing a luminance detected by the photosensor with a reference value and for controlling the luminance of each of the light sources based on the comparison so as to keep a color balance of the light emitted from the color display device.

REFERENCES:
patent: 4816855 (1989-03-01), Kitaura et al.
patent: 5138590 (1992-08-01), Masuda et al.
patent: 5578999 (1996-11-01), Matsuzawa et al.
patent: 5606158 (1997-02-01), Takemoto et al.

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