Driving circuit for display apparatus
US8730144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2010 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jun 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving circuit includes a plurality of stages driven in response to a start signal. Each normal stage outputs a gate signal and a carry signal, increases an electric potential of a node in response to a previous carry signal of a previous stage, and decreases the gate signal to a first voltage in response to a carry signal from a next stage. Each stage applies a second voltage lower than the first voltage to the node in response to receipt of a carry signal from a second next stage. A first dummy stage outputs a first dummy carry signal to the last two normal stages in response to a last carry signal from the last normal stage and the start signal, and a second dummy stage outputs a second dummy carry signal to the last normal stage in response to the first dummy carry signal and the start signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.