Liquid crystal display device and driving method therefor
US11967294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2023 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | May 1, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.