PDLC device and method of making, with liquid crystal microcapsules having a uniform diameter
US5784136A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Sep 9, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/544
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal layer composing a liquid crystal display apparatus is formed by being laminated with a plurality of single particle layers of liquid crystal micro-capsules having a uniform size and being arranged in a two-dimensional crystal array, the liquid crystal micro-capsule being formed by cladding a liquid crystal droplet with a medium having a constant thickness. The liquid crystal micro-capsule is formed by being cladded with a medium composed of gelatine and gum arabic. Further, the single particle layer has a filling medium for making the surface flat and filling the gaps among the liquid crystal micro-capsules. The filling medium is composed of gelatine and gum arabic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.