Television – Video display – Color sequential
Patent
1997-08-18
1999-06-29
Lee, Michael
Television
Video display
Color sequential
348742, H04N 912
Patent
active
059175583
ABSTRACT:
A color control system for projection television displays having a projection lamp, a light valve and a device for varying the color of the light from the projection lamp, such as a color wheel. The color wheel driver provides an output signal which represents the position, that is the color, of the color wheel disposed in the lamp beam. The lamp driver varies the output power used to drive the lamp in response to the particular color of the color wheel disposed in the beam. If the projection lamp has a deficiency in a certain color the present system provides greater output power to the projection lamp during the presence of the filter for that color. A user input control provides for changing the tint of the system based on user preferences and/or any changes occurring in the color filters or projection lamp.
REFERENCES:
patent: 4090219 (1978-05-01), Ernstoff et al.
patent: 4546379 (1985-10-01), Sarofeen et al.
patent: 4713683 (1987-12-01), Fujimori et al.
patent: 4786146 (1988-11-01), Ledebuhr
patent: 4907862 (1990-03-01), Suntola
patent: 4929061 (1990-05-01), Tominaga et al.
patent: 4974095 (1990-11-01), Arov
patent: 5079544 (1992-01-01), DeMond et al.
patent: 5282121 (1994-01-01), Bornhorst et al.
Faller F. Brice
Lee Michael
Philips Electronics North America Corp.
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