Display device, display panel, and pixel drive circuit of display panel
US11355051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2021 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/17
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a display device and a display panel thereof, and a pixel drive circuit of a display panel. By changing a width-to-length ratio of a drive transistor in the pixel drive circuit of each sub-pixel, or changing a capacitance of a storage capacitor at the same time, such that: under the same gray scale, the width-to-length ratio of a drive transistor of each sub-pixel in same color is in direct proportion to a drive current; or at the same time a charging saturation of a storage capacitor of each sub-pixel in same color is the same, and the capacitance of the storage capacitor of each sub-pixel in same color is in direct proportion to the drive current, and the charging saturation is a difference value between an actual charging voltage and a theoretical charging voltage of the storage capacitor when a charging phase ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.