Liquid crystal device having opening in reflection film outside pixel area for evaluating color filter and light shield, its method, and apparatus
US6573960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133388
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal device which has a plurality of pixels and which is configured in such a manner that a counter substrate is opposed to a color filter substrate with a liquid crystal interposed therebetween. The color filter substrate has a reflection film on the surface of a substrate body. Blue, green, and red colored layers, are formed on the surface of the reflection film in matrix form so as to correspond to the respective pixels. A light shield layer is formed between the colored layers. Colored layers for color characteristic evaluation and a light shield layer for optical density measurement are provided in an area located outside an effective pixel area of the color filter substrate. The reflection film is not formed between the colored layers for color characteristic evaluation and the substrate body and between the light shield layer for optical density measurement and the substrate body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.