Color filter and method of manufacturing the same
US4846556A · kind A · utility
74Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | May 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter useful for a color liquid crystal display device, wherein an opaque metal layer is used as a light-shielding layer, and formed on a transparent substrate in a matrix form. A black photoresist layer is left unremoved on the light-shielding layer and color filter layers are formed thereover to fill the matrix spaces of the light-shielding layer. A method of manufacturing such a color filter by means of photolithography is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.