Organic light emitting diode pixel driving circuit and display apparatus of same
US10685602B2 · kind B2 · utility
1Cited by
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20Claims
0Family size
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Key dates
| Filing date | Sep 10, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Sep 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an OLED pixel driving circuit and an OLED display apparatus utilizing the circuit scheme of 3T1C. The normal displaying mode and detecting mode of the pixel driving circuit both include two phases by controlling the conductions of different transistors. And, the pixel driving circuit is capable of implementing corresponding data compensation under the displaying mode according to the detected voltage threshold Vth of the driving TFT and the intrinsic conductivity factor value k of the aged OLED. This is capable of improving the uniformity of display and the illuminating efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.