Liquid crystal display with continuous grayscale, wide viewing angle, and exceptional shock resistance
US6040889A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Dec 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A novel liquid crystal display device which enables continuous gray-scale display, has a wide viewing angle and readily allows an active-matrix drive. The liquid crystal display device has a pair of substrates and a liquid crystal material having an antiferroelectric phase sandwiched between said pair of substrates, at least one of the substrates undergoing an aligning process. In the liquid crystal display element, a natural helical pitch of the liquid crystal material is smaller than a gap between the substrates, and moreover, smaller than twice a lower-limit wavelength of the wavelength range of light used in the liquid crystal display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.