Color temperature compensation for digital display system with color wheel
US5668572A · kind A · utility
44Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | May 26, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0841
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of adjusting color temperature of images displayed by a display system (10) whose images are based on sequential pixel data and are filtered with a color wheel (15, 15', 15"). The relative display times for each color are adjusted to result in a corresponding adjustment of color temperature. In a first embodiment (FIG. 2), the size of the color wheel's segments are changed as well as the display times for data corresponding to each segment. In a second embodiment (FIG. 3), the display times for data corresponding to one or more segments are decreased with a black display time to fill in the difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.