Output circuit, data driver, and display apparatus
US11568831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2022 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Feb 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An output circuit includes a first switch that outputs a positive voltage signal received via a first node when in an ON state, a second switch that outputs a negative voltage signal received via a second node when in an ON state, third and fourth switches that set the first and second nodes to a reference power supply voltage when in an ON state, a first follower circuit that generates, as a gate voltage, a voltage signal following and being in phase with a voltage signal of the first node through source follower operation and supplies the gate voltage to a gate of the first switch, and a second follower circuit that generates, as a gate voltage, a voltage signal following and being in phase with a voltage signal of the second node through source follower operation and supplies the gate voltage to a gate of the second switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.