OLED display substrate and manufacturing method thereof, OLED display device, and brightness compensation method
US11508942B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 10, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | May 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/1201
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an OLED display substrate including a base substrate, a thin film transistor array layer and a planarization layer on the base substrate, and an anode, a pixel definition layer, a cathode, and a light emitting layer on a side of the planarization layer away from the base substrate, the pixel definition layer defining pixel regions, the light emitting layer being located on a side of the pixel definition layer away from the base substrate. The display substrate further includes a light guide that is in contact with the light emitting layer and is used to lead out light from the light emitting layer, so as to test the led-out light and adjust light emission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.