Liquid crystal display and method for producing the same
US6452651B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13775
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a liquid crystal display having high reliability, which is excellent in terms of optical characteristics, heat resistance, and shock resistance, wherein a liquid crystal display consisting of a cholesteric liquid crystal, a chiral nematic liquid crystal or a liquid crystal 1 layer, being a combination thereof, which is roughly pillar-like and polygonal in section or has a roughly pillar-like form enclosed by a closed curve, and divided by said polymer network into areas whose minimum diameter measured by vernier calipers is 5 &mgr;m and whose maximum diameter measured by vernier calipers is 100 &mgr;m, is obtained by polymer networks 4 formed by polymerization of monomer, so that sufficient reflection can be obtained from the liquid crystal 1 without being optical scattering. Although the perpendicular array of the helical axes of liquid crystal 1 is slightly disordered by a polymer network 4 with respect to the plane of a pair of ITO 2a, 2b and substrates 3a,3b, wherein since almost all light entering from the substrata 3a side is reflected backwards (substrate 3a side) by Bragg's reflection, it is possible to decrease the visual angle dependency in comparis…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.