Shift-register circuit, gate drive circuit, liquid crystal display and touch panel
US10976866B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 23, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Jan 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present application discloses a shift-register circuit and driving method, a gate-driving circuit and display apparatus. The shift-register circuit includes an input sub-circuit, a reset sub-circuit, an output sub-circuit, a pull-down control sub-circuit, and a pull-down sub-circuit. The pull-down control sub-circuit is configured, after an output period of an operation cycle for displaying one frame of image, to control the pull-down node at a first voltage level to keep voltage level low at an output port. Additionally, the pull-down sub-circuit is configured, under control of power signals, to pull down the voltage level at the output port. For the display-touch panel with full-in-cell touch sensors, the voltage level at output port can be effectively reduced to avoid mutual interference between drive signals and touch-control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.