Liquid crystal cell filling method and apparatus
US5725032A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Feb 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1341
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for filling a liquid crystal (LC) cell with liquid crystal comprises the step of placing the LC cell having a LC cavity therein and LC inlet openings in its top and bottom edges, in a vacuum chamber which encloses upper and lower LC supply members each having a LC-impregnated yarn exposed through a slot therein. The method includes the steps of evacuating the vacuum chamber, moving the LC supply members to bring the yarns into contact with the top and bottom inlet openings of the cell, and returning the chamber to an atmospheric pressure to thereby cause liquid crystal to be sucked into the LC cavity through the inlet openings. Apparatus for filling a LC cell with liquid crystal is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.