Method of manufacturing photo-alignment layer
US6582776B2 · kind B2 · utility
7Cited by
4References
7Claims
0Family size
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Key dates
| Filing date | Nov 19, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Nov 19, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photo-alignment layer having excellent long-term stability to light and heat is manufactured by coating a material for the photo-alignment layer, which contains a dichroic dye having two or more polymerizable groups per molecule, on a substrate, and exposing the coating layer to polarized light, thereby imparting a photo-alignment function, and polymerizing the polymerizable groups by heating or light exposure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.