Liquid crystal display panel driving device
US6184855A · kind A · utility
33Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An analog driver for a liquid crystal display has sample hold circuits and buffer amplifiers divided into one group for positive inputs and the other groups for negative inputs which buffer amplifiers are selected in accordance with a first and second control signals thereby reducing the power consumption by the driver of buffer amplifiers. Furthermore, when none of the buffer amplifiers are selected, the data lines are held at common voltage to reduce the consumed power by the buffer amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.