Electro-optical element including IMI coatings
US7830583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2007 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Mar 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/48
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrochromic element comprises a first substrate having a first surface and a second surface opposite the first surface, a second substrate in spaced-apart relationship to the first substrate and having a third surface facing the second surface and a fourth surface opposite the third surface, and an electrochromic medium located between the first and second substrates, wherein the electrochromic medium has a light transmittance that is variable upon application of an electric field thereto. The electrochromic element further comprises a transparent electrode layer covering at least a portion of at least a select one of the first surface, the second surface, the third surface, and the fourth surface, wherein the transparent electrode layer comprises an insulator/metal/insulator stack. The materials utilized to construct the insulator/metal/insulator stack are selected to optimize optical and physical properties of the electrochromic element such as reflectivity, color, electrical switch stability, and environmental durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.