LCD device having coupling capacitances and shielding films
US5966193A · kind A · utility
131Cited by
4References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention is characterized by providing light shield patterning on a TFT substrate for an active matrix type liquid crystal display device. A liquid crystal display device comprising an active matrix circuit using a TFT having a top gate-type structure. The light-shield film are formed under a semiconductor layer and superposed at least one of the source bus line and the gate bus line. A capacitance is formed by the light-shield film and at least a part of the semiconductor layer with an insulating layer interposed therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.