Pixel circuit, driving method thereof and display device
US11605322B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 29, 2020 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Jun 11, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Pixel circuit, driving method thereof and display device are provided. Pixel circuit includes driving transistor, storage capacitor, voltage-stabilizing capacitor, data writing sub-circuit, threshold compensation sub-circuit, reset sub-circuit, sensing sub-circuit and light-emitting control sub-circuit. First terminal of storage capacitor, gate electrode of driving transistor, first terminal of reset sub-circuit and first terminal of threshold compensation sub-circuit are coupled to first node. Second terminal of storage capacitor, first terminal of sensing sub-circuit and first electrode of light-emitting device are coupled to second node. Sensing sub-circuit is configured to transmit initial voltage signal on reference line to second node during reset sub-periods of sensing period and display period; and transmit voltage at second node to reference line during light-emitting sub-period of sensing period to read voltage at second node. Threshold compensation sub-circuit is configured to write threshold voltage of driving transistor into storage capacitor in response to control of scan line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.