Display device performing image sticking compensation based on accumulated degradation amount, and method of compensating image sticking in a display device
US11854450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display panel including a plurality of pixels, a data driver configured to provide data signals to the plurality of pixels, a scan driver configured to provide scan signals to the plurality of pixels, and a controller configured to control the data driver and the scan driver. The controller includes a volatile age memory configured to store accumulated degradation amounts for the plurality of pixels, and an internal age memory configured to store backup accumulated degradation amounts generated based on the accumulated degradation amounts. The controller is further configured to compensate input image data by selectively using the accumulated degradation amounts of the volatile age memory or the backup accumulated degradation amounts of the internal age memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.