Shift register unit, gate driving circuit and display apparatus
US10417983B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 31, 2015 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Mar 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The embodiments of the present disclosure provide a shift register unit, a gate driving circuit with bi-directional scan, and a display apparatus. The shift register unit comprises: an input module configured to provide a first input signal to a first node; a first control module configured to provide a pull-up output based on the first input signal and the third clock signal, and then provide a pull-down output; and a second control module configured to maintain a level at the output node at the source voltage based on a fourth clock signal. The first control module comprises a first transistor that remains on after the pull-up output to provide the pull-down output, and the second control module comprises a second transistor that maintains the level at the output node. The shift register unit according to the embodiment of the present disclosure achieves bi-directional scan with a simple design, which is beneficial for wiring in display panels with narrow rims and high resolutions. Further, since the second transistor is provided only for pull-down maintenance, a transistor of a small size can be used to further reduce the size of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.