Liquid crystal display device with influences of offset voltages reduced
US6731263B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 14, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Dec 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0289
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Each video signal driver circuit in a liquid crystal display device includes a first amplifier circuit with a first output terminal and first and second input terminals; a second amplifier circuit with a second output terminal and third and fourth input terminals; a first connecting circuit switchable between a first connection wherein an output voltage from the first output terminal is input to the first input terminal as a reference voltage, and a second connection wherein the output voltage from the first output terminal is input to the second input terminal as a reference voltage; and a second connecting circuit switchable between a third connection wherein an output voltage from the second output terminal is input to the third input terminal as a reference voltage, and a fourth connection wherein the output voltage from the second output terminal is input to the fourth input terminal as a reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.