Liquid crystal display device and driving method thereof
US10417980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Nov 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid-crystal display device and a driving method thereof are disclosed. The driving method of the liquid-crystal display device comprises: converting data of an input image into a positive gamma reference level voltage and a negative gamma reference voltage to generate a positive data voltage and a negative data voltage; selecting between the positive data voltage and the negative data voltage in response to a polarity control signal and supplying the selected data voltage to data lines; generating a compensated voltage based on the difference between a dummy data voltage and a preset gamma reference level voltage; and increasing the high-potential power supply voltage by an amount equal to the compensated voltage and decreasing the low-potential power-supply voltage by the amount equal to the compensated voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.