Liquid crystal compound and liquid crystal composition
US11130911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2019 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Oct 6, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/546
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A compound represented by formula I, a negative liquid crystal composition comprising such a compound, and a liquid crystal display element or liquid crystal display comprising the compound or liquid crystal composition are provided. The compound represented by formula I contains two hydroxy groups. In an ODF process for a panel, due to an intermolecular force between the hydroxyl groups and the surface of the panel (a glass surface or an ITO electrode surface), the compound is spontaneously aligned, in a standing manner, on the panel glass or transparent ITO electrode substrate, causing liquid crystal molecules similar to the compound represented by formula ITO be vertically aligned, and UV light irradiation, a polymer layer with a rough surface is formed on the substrate by means of polymerization, and achieves the effects of PI insulation and vertical alignment of the liquid crystal molecules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.