Electrochromic display device
US4354741A · kind A · utility
21Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1980 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Sep 10, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1533
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrochromic display device and apparatus for producing such a device including a display electrode, a confronting electrode, and an electrolyte-impregnated porous layer disposed between the electrodes. The porous member has an average pore diameter of 0.1 to 50 .mu.m with porous spaces occupying at least 30% by volume of the porous member. Pigment is held in the porous spaces to an extent of 1 to 50% by volume of the porous spaces. With this construction, the display device provides an excellent display background.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.