Liquid crystal display element
US6057906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1997 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Mar 27, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/606
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal display device which comprises, a pair of substrates facing to each other and each provided with an electrode, the electrode provided on one of the substrates being faced to the electrode provided on the other substrate, and a liquid crystal layer sandwiched between the pair of substrates, wherein the liquid crystal layer contains as a main component a liquid crystal having a dichroic dye molecule dissolved therein, the dichroic dye molecule having at least one group selected from the group consisting of thiocarbonyl group, thioester group, dithioester group, selenocarbonyl group, selenoester group and diselenoester group. The liquid crystal layer may contain a first compound which is proton-donative and a second compound which is proton-acceptive which are dissolved therein, the first compound being linked via a hydrogen bonding with the second compound, and at least one of the first compound and the second compound exhibiting an absorption in the visible light range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.