Antiflector black matrix having successively a chromium oxide layer, a molybdenum layer and a second chromium oxide layer
US5566011A · kind A · utility
10Cited by
14References
4Claims
0Family size
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Inventor
Key dates
| Filing date | Dec 8, 1994 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Dec 8, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A black matrix structure suitable for use in an active matrix liquid crystal display is described. The novel antireflective black matrix comprises successive layers of chromium oxide, a metal selected from among chromium, tungsten, molybdenum, vanadium, iron and niobium, a second layer of chromium oxide and a chromium mirror, all of which are deposited upon the front surface of a glass substrate member. An alternate structure includes the same sequence of layering on the back surface of the chromium mirror. The described black matrixes reduce reflectance of incident light to less than 0.5%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.