Active matrix substrate, display device, and drive method therefor
US10984747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2020 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Jul 22, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a display device including an active matrix substrate in which a demultiplexing circuit is formed, a boost circuit, which generates a plurality of connection control signals respectively applied to gate terminals of a plurality of connection control transistors as switching elements configuring the demultiplexing circuit are respectively generated, is provided in the demultiplexing circuit. An internal node of each boost circuit is precharged via a transistor turned on by a boosted voltage of an internal node of another boost circuit, and thereafter, a voltage of the internal node of the boost circuit is boosted via a boost capacitor by a control signal applied to a demultiplexing circuit. The boosted voltage of the internal node is applied to a gate terminal of a connection control transistor as a connection control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.