Liquid crystal display element and manufacturing method thereof
US6462796B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 21, 1999 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display element is formed by providing a liquid crystal layer made of ferroelectric liquid crystal material between electrode substrates. One of the electrode substrate is composed of a substrate, electrodes, an insulating film, and an alignment film, while the other substrate is composed of a substrate, electrodes, an insulating film, and an alignment plate. The alignment film is formed by mixing a substance with ionic bond in an alignment film material and thereafter applying the mixture on the paired substrates on each of which the electrodes and the insulating film are provided. With this arrangement, ions are eluted from the alignment films thus formed into the liquid crystal layer, thereby becoming dispersed therethrough homogeneously. This remarkably reduces influences of display history, and half-tone display with excellent response characteristics can be realized, being not affected by display history.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.