Electrochromic devices having optimized visual characteristics
US11086184B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2017 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Apr 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/155
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The current invention describes an electrochromic panel having optimized visual properties. The properties have been optimized to provide an electrochromic panel having a very transparent clear state and a very black and opaque dark state. The coloration of the electrochromic panel has also been optimized to provide options for aesthetically pleasing windows. In one embodiment, the clear state comprises a CIE-Lab L* in transmission from 70 to 95, b* in transmission from −8 to 8, and a* in transmission from −4 to 4 and a dark state comprises a Tvis less than 0.01%, a CIE-Lab b* in transmission from −8 to 8, and a CIE-Lab a* in transmission from −8 to 8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.