Alignment film, preparation method and liquid crystal display panel
US10093859B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2015 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jul 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133761
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to the field of liquid crystal technology, and more particularly to an alignment film being applied in a PSVA liquid crystal display panel and including a first branched chain M and a second branched chain Q bonded on polyimide as a main chain and thus having a structure as shown in the following formula:The first branched chain M is a group applied to deflect the liquid crystal in a distribution state; the second branched chain Q is a group containing nitrobenzophenone or benzoquinonyl. The invention also provides a liquid crystal display panel using the alignment film. The invention can effectively suppress the broken bright point issue of panel and thereby improve panel quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.