Liquid crystal display device and driving method therefor
US6331845A · kind A · utility
46Cited by
10References
14Claims
0Family size
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Inventors
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136213
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal active matrix display device includes a first substrate having a thin film transistor formed thereon. A light-screening film 1 is located on the first substrate in a manner to be overlapped with an ITO. The display device includes a second substrate having a color filter and a light-screening film 2 formed thereon. The second substrate is opposed to the first substrate. The light-screening film 2 extends from the uncontrollable area by a certain value depending on a voltage from the external, resulting in improving a numerical aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.