Driving circuit system for use in electro-optical device and electro-optical device
US6670943B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1999 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jul 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0297
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electro-optical device copes with a decreased size of a pixel pitch by using a comparatively simple configuration in which a driving circuit system is formed on one substrate. In a scanning-line driving circuit, each transfer signal of a shift register is branched off into three signal components, and an enable circuit is provided for each signal component. During a pulse cycle of the transfer signal, one transfer signal is divided into three components while being sequentially shifted in the time domain in accordance with enable signals whose phases are sequentially shifted from each other, and the divided components are output as scanning signals. The same applies to a data-line driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.