Polymer stabilized four domain twisted nematic liquid crystal display
US5831700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13775
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystalline light modulating pixel includes first and second cell wall structures and nematic liquid crystal within a UV cured polymer network disposed therebetween. The first and second cell wall structures cooperate with the liquid crystal to form four liquid crystal domains within the pixel. The liquid crystal in each of the domains exhibits a twisted nematic liquid crystal structure and the orientation of the liquid crystal director of the liquid crystal adjacent one of the cell wall structures in at least two domains is different. The polymer network stabilizes the four domain structure at both high field and zero field conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.