Scan driving circuit and driving method for active matrix liquid crystal display
US6801182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Jul 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0297
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scan driving circuit and driving method for active matrix liquid crystal display is disclosed. The scan driving circuit comprises a switching circuit including a plurality of low-temperature poly-silicon MOS devices of same conductivity type formed on the liquid crystal display panel and a plurality of control signal input ports connected to the switching circuit, in which the number of the control signal input ports is less than that of the scan lines of the liquid crystal display panel, and the switching circuit is coupled between the scan lines and the control signal input ports. The driving method comprises providing a plurality of control signals consisted of sequential or back-and-forth pulses coupled to the control signal input ports from outside of the panel for operation of the switching circuit to drive the scan lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.