Method for changing states of electrochromic film
US10539851B2 · kind B2 · utility
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2References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 6, 2018 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Mar 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/163
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosure relates generally to a method of changing an optical state of an electrochromic film. The electrochromic film may have a plurality of optical states. The method may include selecting a desired state of the plurality of optical states; injecting electric charges into the electrochromic film; monitoring an amount of the electric charges injected into the electrochromic film; and stopping injecting the electric charges when the electric charges reaches a pre-set amount corresponding to the desired state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.