Liquid crystal driving device for controlling a liquid crystal panel and liquid crystal display apparatus
US6801178B2 · kind B2 · utility
25Cited by
7References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | May 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0276
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal driving device for controlling a liquid crystal panel and a liquid crystal display apparatus. Reference voltages are generated in a data driver from input reference voltages, and reference voltages are selected in accordance with the settings of gray scale control registers thereby to control the gray scale voltages. The gray scale control registers can be set using a data bus for transferring the display data from a liquid crystal controller, and the gray scale control operation is performed by the liquid crystal controller in accordance with the image data
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.