Display apparatus and voltage stabilization method
US10755628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Mar 6, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus including a voltage buffer, a display panel and a pixel loading compensation circuit is disclosed. The voltage buffer is used to receive a ramp voltage and output an output current. The display panel includes pixel switches and pixel capacitors. The pixel switches are arranged in parallel and coupled to the voltage buffer. The pixel capacitors are coupled between the pixel switches and ground. The pixel loading compensation circuit includes compensation switches and compensation current sources. The compensation switches corresponding to the pixel switches are arranged in parallel and coupled to the voltage buffer. The compensation current sources are coupled between the compensation switches and ground. The operation of the compensation switches is opposite to the operation of the corresponding pixel switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.