Adjustment of liquid crystal display voltage
US8816999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Jun 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0407
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Drive voltages of a liquid crystal display are adjusted based on one or more environmental conditions. The pixel drive voltages may be adjusted based on temperature. A pixel voltage may be varied such that it is a higher voltage at relatively lower temperatures and a lower voltage at relatively higher temperatures. The window voltage may be varied based on temperature. The window voltage may be stepped through different values within a display phase. The window voltage may be varied during a blanking period of the display phase such that the pixel sees a relatively larger voltage to obtain a desired initial state more quickly. Then, during a light modulating time period, the window voltage may be stepped such that there is a lower voltage field for holding the state of the pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.