Active matrix liquid crystal display device
US6781643B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2000 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | May 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0876
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an active matrix liquid crystal display device having a thin film transistor array substrate (250) comprising a plurality of scan lines formed on an insulating substrate (100), a plurality of signal lines formed to cross the scan lines, thin film transistors formed near intersections between the scan lines and signal lines, respectively, pixel electrodes connected to one electrodes of the thin film transistors, respectively, and additional capacity portions connected to pixel electrodes (5) connected to source electrodes (4) of the thin film transistors, respectively; in order to provide a higher contrast and to allow driving at a lower voltage, a part of the additional capacity portion is formed, via insulating film (115) and semiconductor (120), between the pixel electrode (5) and that scan line (11) which is connected to a gate electrode (1) of the thin film transistor for switching the pixel electrode (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.