Liquid crystal display device with compensation and LC twist angle varying in a nonlinear fashion in the thickness direction
US5241408A · kind A · utility
26Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Feb 4, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1396
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a liquid crystal display device having a voltage-driven liquid crystal cell sandwiched between two spaced polarizers, the cell comprises a liquid crystal layer having a twisted molecular alignment with no applied voltage and also having an optical rotary power with respect to visible rays. In the vicinity of the cell or in close contact therewith, there is disposed an optically anisotropic layer having an optical rotary power smaller than that of the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.