Sequential color display device
First Claim
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1. A sequential color display device comprising:
- a plurality of light sources, each emitting different color light from other light sources;
a shutter for sequentially passing color light beams from the light sources;
at least one photosensor for detecting luminance of each of the light sources;
a controller for sequentially operating each of the light sources, the shutter, and the photosensor in synchronism with each other at regular intervals; and
luminance control means responsive to a luminance detected by the photosensor for controlling the luminance of each of the light sources so as to keep a color balance of the light emitted from the color display device.
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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.
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Citations
12 Claims
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1. A sequential color display device comprising:
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a plurality of light sources, each emitting different color light from other light sources; a shutter for sequentially passing color light beams from the light sources; at least one photosensor for detecting luminance of each of the light sources; a controller for sequentially operating each of the light sources, the shutter, and the photosensor in synchronism with each other at regular intervals; and luminance control means responsive to a luminance detected by the photosensor for controlling the luminance of each of the light sources so as to keep a color balance of the light emitted from the color display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification