Twisted nematic micropolarizer and its method of manufacturing
US7385669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Apr 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133538
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is a method for creating a micropolarizer, including providing a first plate having a first and a second surface, providing a second plate having a first and a second surface. Then coating a polyimide on each of the first surface of the two plates followed by rubbing the polyimide coated upon the first surface of the first plate along a predetermined direction and rubbing the polyimide coated upon the first surface of the second plate along a direction having a predetermined angle in relation to the predetermined direction. An alignment process includes aligning the first plate and the second plate having the first surface of the first plate and the first surface of the second plate facing each other thereby creating a space there between. In conclusion there is a filling of a liquid crystal material in the space whereby a cell, or film is created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.