Liquid crystal display with different twisting directions of liquid crystal molecules
US8045115B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jul 8, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display includes a first alignment film having a first alignment direction, a second alignment film having a second alignment direction, and a liquid crystal layer having liquid crystal molecules between the first and second alignment films. The liquid crystal layer is doped with a chiral material that tends to induce a first twist in directors of the liquid crystal molecules when an electric field is applied to the liquid crystal layer. The first and second alignment films have orientations that tends to induce a second twist in the directors when an electric field is applied to the liquid crystal layer, in which the direction of the first twist is different from the direction of the second twist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.