Alignment films in a liquid crystal display device and a method of manufacturing the same
US6583835B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Mar 30, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device including a pair of substrates in a spaced relationship with one another. A pair of alignment films are provided, one alignment film being formed on each substrate such that the alignment films face one another. A liquid crystal layer, including plural liquid crystals, is inserted between the pair of alignment films, wherein the alignment films impart a given pre-tilt angle to the liquid crystals. The alignment films are composed of a material containing at least two types of polymers having a prescribed initial alignment and different alignment variation rates in response to ultra-violet ray irradiation. The pre-tilt angle being adjusted, without rubbing the alignment films, through ultraviolet exposure of the alignment films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.