Electrochromic display cell
US4392720A · kind A · utility
7Cited by
0References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1980 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Nov 28, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrochromic display cell comprises a frame interposed between an ionic conductor and an annular soldered zone sealing a cover of the cell to a substrate of the cell. The frame is squeezed between the cover and the substrate to tightly separate the ionic conductor and the solder, preventing any reaction therebetween. In a preferred embodiment, the frame is made of a thermofusible material. It partially melts during the sealing of the cell, adhering thus very tightly to the cover and to the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.