Shift register having a compensation circuit, shift register circuit and display device
US11443706B2 · kind B2 · utility
1Cited by
0References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 20, 2019 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Mar 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A shift register includes an input circuit, a compensation circuit, an output circuit, a pull-down control circuit, a pull-down circuit, and a reset circuit. During operation of a pixel driving circuit, if a display abnormality occurs in one or more pixels corresponding to the shift register, a compensation signal may be provided by the compensation circuit to a pull-up node according to specific condition of the display abnormality, so as to change a voltage of the pull-up node, and further change a delay time of waveform of the signal passing the switching element in the output circuit connected to the pull-up node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.