Display panel having a voltage compensation circuit
US11423849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2021 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Jun 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0257
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display panel includes a data line, a pixel driving circuit, a light-emitting device and a voltage compensation circuit. The voltage compensation circuit includes a sampling and conditioning unit configured to obtain a driving current output by the pixel driving circuit and to output a control signal according to the driving current; a first switch unit including a control terminal, an input terminal and an output terminal, the control terminal of the first switch unit being connected to an output terminal of the sampling and conditioning unit, and the input terminal of the first switch unit being connected to the output terminal of the pixel driving circuit; a compensation unit including an input terminal and an output terminal, the input terminal of the compensation unit being connected to the output terminal of the first switch unit, and the output terminal of the compensation unit being connected to the data line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.