Sequential color display device
US6069676A · kind A · utility
105Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1997 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Apr 8, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.