Pixel unit driving circuit having erasing transistor and matching transistor, method driving the same, pixel unit and display apparatus
US9852693B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 28, 2016 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel unit driving circuit and a method thereof, a pixel unit and a display apparatus can improve uniformity in the brightness of an OLED panel. The pixel unit driving circuit includes a driving thin film transistor, a matching thin film transistor, a signal-erasing thin film transistor, a charging control unit, a driving control unit and a storage capacitor, wherein a gate of the driving thin film transistor is connected with a high level output terminal of a driving power supply via the charging control unit, a source thereof is connected with the high level output terminal of the driving power supply, and a drain thereof is connected with an anode of an OLED; a gate and a source of the matching thin film transistor are connected with a data line via the charging control unit, and a drain thereof is connected with a second end of the storage capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.