Shift register and driving circuit and display device using the same
US7447292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2007 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jul 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A shift register, a driving circuit and a display device using the same are disclosed. The shift register includes a 1st and a 2nd rectifying elements and 1st˜4th transistors. 1st source/drains of the 1st˜3rd transistors receive a common voltage respectively. The gates of the 1st and 3rd transistors and a 2nd source/drain of the 2nd transistor are coupled to a 2nd terminal of the 2nd rectifying element. The gates of the 2nd and 4th transistors and a 2nd source/drain of the 1st transistor are coupled to a 2nd terminal of the 1st rectifying element. A 1st source/drain of the 4th transistor is coupled to a 2nd source/drain of the 3rd transistor. The 1st terminals of the 1st and 2nd rectifying elements respectively receive input signals and a 1st clock signal. A 2nd source/drain of the 4th transistor receives a 2nd clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.