Pixel driving circuit with wide range input voltage
US11468834B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 18, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Jul 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present application discloses a pixel driving circuit for a sub-pixel in light-emitting display. The pixel driving circuit includes a driving sub-circuit comprising N driving transistors connected in series. N is an integer greater than 1. The N driving transistors include a first driving transistor having a source electrode coupled to a first input voltage port and an N-th driving transistor having a drain electrode coupled to a light-emitting diode. Additionally, the pixel driving circuit includes a power-storage sub-circuit coupled to a gate electrode of the first driving transistor and the drain electrode of the N-th driving transistor. Furthermore, the pixel driving circuit includes a charge-input sub-circuit configured to use a first control signal from a first scan line to control a connection between the gate electrode of the first driving transistor and a data line supplying a data voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.