Display device and pixel driving circuit
US11335248B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2021 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Mar 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0262
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a pixel driving circuit including a data writing unit, a light emitting unit and a compensation unit. The data writing unit includes first and second capacitors. A first terminal of the first capacitor is coupled to a first node, and a second terminal of the first capacitor is coupled to a second node. A first terminal of the second capacitor is coupled to the first node. The light emitting unit includes a first switch and a light emitting element. A control terminal of the first switch is coupled to the second node, and a first terminal of the first switch is coupled to a second terminal of the second capacitor. The compensation unit includes a second switch. The second switch is coupled to the second node and a second terminal of the first switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.