External compensation circuit and method, and display device
US10943536B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2019 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are an external compensation circuit and method, and display device in the field of display techniques. The external compensation circuit includes a regulation sub-circuit that may collect a driving current loaded to a light-emitting unit and a reference current from a reference current source, and regulate potentials at two nodes connected to a compensation sub-circuit according to the collected current, to enable the compensation sub-circuit to calibrate a data signal to be input to a pixel circuit according to a potential difference between the two nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.