Electrochromic display device
US4699471A · kind A · utility
6Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1985 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Jun 4, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1524
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An electrochromic light transmission control device in which the electrochromic film is operated under control not to reach the color saturation condition, thereby preventing the occurrence of separation of the film and thus ensuring a long-term service life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.