Liquid crystal aligning agent composition, method for preparing liquid crystal alignment film using same, and liquid crystal alignment film and liquid crystal display device using same
US11592713B2 · kind B2 · utility
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Key dates
| Filing date | Jan 8, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jan 24, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a liquid crystal aligning agent composition including a urea-based compound that contains two or more urea functional groups and has a structure in which a hydroxyalkyl group is substituted for a terminal amino group of a urea functional group, together with polyimide and its precursor polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.