Shift register circuit and driving method thereof, gate driver on array circuit, and touch sensing display panel
US10818255B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A shift register circuit including a switch control port configured to couple to a pull-up node via two transistors in series controlled by another transistor. The switch control port is configured to keep at a low voltage level during a display scan stage for the shift register circuit to output a gate scanning signal via an output port to a gate line which optionally still transmit a touch scanning signal, to switch to a high voltage level to halt the gate scanning signal while transmitting the touch scanning signal only in the gate line during a touch scan stage within the display scan stage, and to switch back to the low voltage level after the touch scan stage to output the gate scanning signal without coupling interference of the touch scanning signal. The shift register circuit is compatible for driving either 60 Hz or high-frequency (>60 Hz) Full-in-cell touch sensing display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.