Reflectivity adjustable wall unit, wall module and intelligent building exterior wall system
US10598984B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reflectivity adjustable wall unit includes a transflective layer, a reflective layer, a first sealing gap defined between the transflective layer and the reflective layer, and a liquid crystal layer in the first sealing gap. The transflective layer is used as an outer layer of the reflectivity adjustable wall unit, and reflects some of ambient light irradiated at the transflective layer while allowing some of the ambient light to pass through. The reflective layer is disposed opposite to the transflective layer. The reflective layer includes an electrochromic reflective layer, a liquid crystal electrode layer and a base substrate, and the electrochromic reflective layer, the liquid crystal electrode layer and the base substrate are sequentially arranged from an outside to an inside. The electrochromic reflective layer has variable reflectivity under control of an external control voltage; and the liquid crystal layer has variable index under control of the liquid crystal electrode layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.