Liquid crystal display device
US11004408B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Dec 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a liquid crystal display device that provides improved local dimming. The liquid crystal display device includes: a liquid crystal display panel; a backlight unit divided and driven into a plurality of blocks and supplying light to the liquid crystal display panel; a local dimming value calculator calculating a dimming value of each of the blocks in accordance with input image data; and a backlight dimming controller having a pixel corrector correcting image data on the basis of the dimming values, in which the backlight dimming controller can correct at least some of the dimming values of the blocks calculated by the local dimming value calculator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.