TFT array substrate and active-matrix addressing liquid-crystal display device
US7027109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Dec 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136227
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A TFT array substrate blocks light traveling toward active layers of the TFTs. A patterned first light-shielding layer is formed between a transparent plate and TFTs to overlap with the active layers of the TFTs. A patterned third light-shielding layer is formed to cover the TFTs on the opposite side to the plate with respect to the TFTs. The third light-shielding layer has the first parts extending along rows of the matrix and the second parts extending along the columns thereof. A patterned second light-shielding layer is formed between the first light-shielding layer and the TFTs. The second light-shielding layer has a light-absorbing property, which absorbs the light entering the inside of the substrate. A patterned fourth light-shielding layer may be additionally provided between the TFTs and the third light-shielding layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.