Method for treating an aligning film for a liquid crystal display element
US5625475A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 26, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Apr 26, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133788
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for treating an aligning film for a liquid crystal display element wherein an aligning film consisting of an organic high molecular compound formed on a transparent substrate with a transarent electrode is subjected to a robbing treatment and thereafter said aligning film is irradiated with soft X-rays in a gas. A method for preparing a liquid crystal display element comprising the steps of arranging a transparent electrode on a pair of transparent substrates, forming an aligning film consisting of an organic high molecular compound on the said transparent electrode, treating said aligning film by a rubbing treatment, assembling the substrates to face each other with a spacer disposed therebetween, and then applying and sealing to a substrate a liquid crystal material wherein the aligning film is subjected to a robbing treatment and thereafter said aligning film is irradiated with soft X-rays in gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.