Liquid crystal cell provided with bubble traps
US5037185A · kind A · utility
18Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Sep 6, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1339
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The liquid crystal cell comprises a volume divided by a separating wall into a main chamber and a secondary chamber which define an active surface and a passive surface respectively. The secondary chamber is partially filled with the liquid crystal and with a gas. According to the invention the cell comprises, in addition, compensation means for variations in the volume of the liquid crystal constituted by a secondary chamber divided into a plurality of compartments, a plurality of passage openings being provided in the separating wall so that the main chamber and the secondary chamber are intercommunicating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.