Double layer display
US4693560A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1986 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Sep 25, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display apparatus comprising a first liquid crystal means and a second liquid crystal means spaced from the first liquid crystal means. Means are disposed between the first and second liquid crystal means for transmitting and reflecting incident light. The first and second liquid crystal means comprise liquid crystal material containing a dye that conforms to the structure of the liquid crystal material and a containment medium for inducing distorted alignment of the liquid crystal material which in response to such alignment scatters and absorbs light and which response to a prescribed input reduces the amount of such scattering and absorption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.