Cholestric liquid crystal device and a method for its manufacture
US5731859A · kind A · utility
0Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1995 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Dec 29, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A single substrate polymeric cholesteric liquid crystal (CLC) device useful in display applications such as for high efficiency polarizers and color filters is created by a process that coats a first substrate with a polyimide layer and a second substrate with an amorphous fluoropolymer layer. Both layers are buffed and liquid CLC material is placed between the grooved layers. After annealing, the amorphous fluoropolymer coated substrate is removed, leaving the CLC material bonded to a single substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.