Pixel compensation circuit, organic light-emitting display panel and organic light-emitting display device thereof
US10242622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2018 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Jan 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel compensation circuit, an organic light-emitting display panel and an organic light-emitting display device are provided. The pixel compensation circuit includes a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor, a fifth switch transistor, a sixth switch transistor, a light-emitting element, a seventh switch transistor, a storage capacitor, and a drive transistor. The first switch transistor, the fourth switch transistor, and the fifth switch transistor provide a signal on a reference voltage signal terminal to a first node and provide a threshold voltage to a gate of the drive transistor. The second switch transistor and the third switch transistor couple a signal on a first power supply terminal in real time to the gate of the drive transistor. A driving current generated by the drive transistor is protected from adverse effects caused by IR Drop on the first power supply terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.