Non-uniformly-rigid barrier wall spacers used to correct problems caused by thermal contraction of smectic liquid crystal material
US6337730B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Jun 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to this liquid crystal cell, a vacuum to be established between two electrode substrates as a result of the volume shrinkage of a liquid crystal having a high viscosity at the room temperature can be damped by communicating between two of a plurality of filling portions formed between two electrode substrates by a plurality of barrier walls through the intervening barrier walls. An anti-ferroelectric liquid crystal (AFLC) is used as the liquid crystal. The liquid crystal cell has a lower electrode substrate and an upper electrode substrate, between which a smectic liquid crystal is disposed together with a plurality of barrier walls on the inner side of a band seal. Each barrier wall has through holes to communicate between the two filling portions located on the two sides of the barrier walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.