Gamma reference voltage generator
US7233305B1 · kind B1 · utility
6Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Jun 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0276
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A programmable buffer integrated circuit which can be programmed to output a set of gamma correction reference voltages to be used in LCD displays. Once programmed, the buffers will continuously output the programmed value. The device incorporates a programming interface to allow the programming of the buffer outputs to the desired values during manufacturing and test of the panel. Multiple sets of values can be programmed to provide different gamma correction curves for different user or application requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.