David Brooks England

US Patent:

20180088431, Mar 29, 2018

Filed:

Sep 22, 2017

Appl. No.:

15/713045

Inventors:

- Alameda CA, US
Guillermo GARCIA - Oakland CA, US
Scott THOMSEN - South Lyon MI, US
David ENGLAND - Alameda CA, US

International Classification:

G02F 1/163
G02F 1/157

Abstract:

An electrochromic (EC) privacy window includes an EC pane unit including a first EC device having a bright state and a dark state, and a privacy device facing the EC pane unit and having a bright state and a privacy state configured to attenuate visible radiation transmitted through the window. In some embodiments, when the privacy device is in the privacy state, the window has transmitted haze of greater that 80%. In other embodiments, when the privacy device is in the privacy state and the first EC device is in the dark state, the window has a visible transmittance of about 0.1% or less.