Pixel control circuit and control method thereof, display device
US10482808B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 1, 2018 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jun 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0276
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel control circuit and a control method thereof, and a display device. The pixel control circuit includes a control-signal output sub-circuit and a switch sub-circuit. An input terminal of the switch sub-circuit is electrically coupled to an output terminal of the control-signal output sub-circuit. An input terminal of the control-signal output sub-circuit is electrically coupled to a data line. The control-signal output sub-circuit is configured to: compare a voltage received by the data line with a reference voltage; and if a value of the voltage is equal to a value of the reference voltage, output a first control signal, otherwise output a second control signal. The switch sub-circuit is configured to be turned off under control of the first control signal and turned on under control of the second control signal. The reference voltage is a corresponding gamma voltage when the display panel is in a dark state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.