Method of color calibration for transmissive displays
US7312779B1 · kind B1 · utility
12Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2003 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Apr 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transmissive display system is calibrated by applying DAC values for a target color and noting the color displayed on the screen. The displayed color is compared to the target color in high and low ambient light levels to determine if it is within a specified tolerance of the target color. Should the displayed color not be within the tolerance range, a calibration procedure is launched for both the high and low light levels which establishes new DAC values and backlight levels for accurate target color presentation on the screen over a wide dynamic range of input signal levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.