Liquid crystal display
US7425394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2005 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Nov 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133788
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A main object of the present invention is to provide a liquid crystal display using a ferroelectric liquid crystal, showing the mono-stability operation mode using a material showing the chiral smectic C phase via the smectic A phase in the temperature cooling process as the ferroelectric liquid crystal.The present invention achieves the above-mentioned object by providing a liquid crystal display with a ferroelectric liquid crystal sandwiched between two substrates, wherein an electrode and a photo alignment layer are formed successively each on the surfaces of the substrates facing with each other, with the constituent materials for the above-mentioned photo alignment layers having compositions different with each other with the above-mentioned ferroelectric liquid crystal sandwiched therebetween, and the above-mentioned ferroelectric liquid crystal shows the chiral smectic C phase via the smectic A phase in the temperature cooling process, and it shows the mono-stability in the above-mentioned chiral smectic C phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.