Polychrome screen
US5015074A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1990 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Jan 8, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a polychrome screen comprising alternating regions (40A, 40B) of a first (A) and a second (B) dichroic display materials placed between first and second insulating walls (31, 33) and alternating regions (42B, 42C) of a second (B) and a third (C) dichroic display materials placed between the second and third insulating walls (33, 35); each region of the first material of the first layer being superimposed both on a region of the second material of the second layer and part of a region of the third material of the second layer and each region of the second material of the first layer is superimposed on the other part of the region of the third material of the second layer. The present invention more particularly applies to polychrome display cells with liquid crystals, such as those of the nematic or ferroelectric type, using both a multiplexed and non-multiplexed display mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.