Liquid crystal driving circuit and liquid crystal display device
US6275207A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Dec 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are provided a liquid crystal driving circuit and a liquid crystal display device in which the display brightness and color variation to input display data values can be adjusted. Input display data of one line period are taken into a latch circuit (1) with a latch signal output from a latch address control circuit, and latch circuit (1) data are taken into a latch circuit (2) at the timing of a line clock. Further, the latch circuit (2) data are input to a decode circuit. In accordance with set data output from a set register which sets the set register setting data with a set register setting clock, a gray-scale voltage which is matched with data of each pixel is selected and output as a selection voltage from the decode circuit. The selection voltage is buffered in an amplifying circuit, and then a liquid crystal applying voltage is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.