GOA circuit with forward-backward scan function
US9779682B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Nov 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a GOA circuit with forward-backward scan function. In the GOA unit circuit of every stage, the pull-up controlling module comprises two thin film transistors respectively controlling the forward, backward scans. With proper received signals, as the thin film transistor controlling the forward scan is on, the GOA circuit performs forward scan from the GOA unit circuit of the first stage to the GOA unit circuit of the last stage, and as the thin film transistor controlling the backward scan is on, the GOA circuit performs backward scan from the GOA unit circuit of the last stage to the GOA unit circuit of the first stage. Thurs, the GOA circuit possessing functions of forward scan and backward scan at the same time can be achieved to expand the application field of the GOA circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.