Light shielding structure of a substrate for a liquid crystal device, liquid crystal device and projection type display device
US6388721B1 · kind B1 · utility
17Cited by
11References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2001 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Apr 5, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136209
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Placement of a first light shielding film (7) at least below the channel region (1c) of a TFT which drives a pixel, and of a second light shielding film (3) above the same prevents impingement of light coming from above or from below on that channel region (1c). Further, a second light shielding film (3) is formed to cover the channel region (1c) and the first light shielding film (7), thereby to prevent the surface of the first light shielding film (7) from direct exposure to light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.