Method and device for brightness compensation of display panel, and display device
US11164543B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2020 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Oct 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and a device for brightness compensation of a display panel, and a display device are provided. The method includes obtaining a brightness degradation rate of each sub-pixel of a plurality of sub-pixels of the display panel at a first gray-scale value. The method also includes determining whether brightness degradation rates of the plurality of sub-pixels include a brightness degradation rate greater than a first preset threshold, and whether a proportion of sub-pixels, having brightness degradation rates greater than the first preset threshold, over the plurality of sub-pixels is greater than a preset percentage. Further, the method includes performing brightness compensation on the display panel according to one of a first brightness compensation method (increasing brightness of at least a portion of the plurality of sub-pixels) and a second brightness compensation method (reducing brightness of at least a portion of the plurality of sub-pixels).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.