Liquid crystal alignment agent composition, method of preparing liquid crystal alignment film, and liquid crystal alignment film, and liquid crystal display using the same
US11667843B2 · kind B2 · utility
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6References
18Claims
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Key dates
| Filing date | Jan 9, 2020 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Nov 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133788
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a liquid crystal alignment agent composition including a copolymer for liquid crystal alignment agent containing two types of repeating units classified according to the types of diamine-derived functional groups, and a crosslinker compound in which the protecting group having a specific structure was introduced, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.