Logic gate, scan driver and organic light emitting diode display using the same
US7528631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2007 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Jul 13, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A logic gate includes a first driver to receive an input signal, and to control a connection between a first power source and a first node in correspondence with the input signal, a second driver coupled to the first node and a second power source, and to control a voltage of the first node, a third driver to control a connection between an output terminal and the first power source in correspondence with the voltage of the first node, a control transistor to control a connection between the third driver and the second power source, a fourth driver to control a connection between a gate electrode of the control transistor and the second power source, and a second capacitor between a first electrode of the control transistor and the gate electrode of the control transistor, wherein the transistors are a same type of MOS transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.