OLED pixel driving circuit, OLED display panel, and driving method
US10210810B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2017 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An OLED pixel driving circuit includes a first TFT having gate connected to a third node, and having a source and a drain connected to a second node and a first node respectively; a second TFT, having gate receiving a scan signal, and having a source and a drain connected to the first node and the third node respectively; a third TFT, having gate receiving the scan signal, and having a source and a drain connected to the second node and utilized for inputting a data voltage respectively; a fourth TFT, having gate receiving an illumination signal, and having a source and a drain connected to the second node and a DC high voltage power source respectively; a fifth TFT, having gate receiving the illumination signal, and having a source and a drain connected to the first node and an anode of an OLED, and two capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.