System and method for providing voltages for a liquid crystal display
US6744415B2 · kind B2 · utility
27Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A matrix of liquid crystal pixels (160) is provided. A digital-to-analog converter (DAC) (150) is coupled to the matrix and produces an output voltage that can be applied to one or more pixels in the matrix. The DAC (150) receives a multi-bit digital input and generates its output voltage to correspond to the digital input. The conversion function of the DAC is adapted to have a higher resolution within a voltage range in which most grayshade changes of the LCD occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.