Curtains & BlindsClever use of curtains and blinds can provide a stylish means to improve privacy. They can also assist in climate control, providing insulation and reflecting away excessive sunlight. Intelligent control and automation can also improve security.
Automation & Control
Liquid Crystal (Smart) Glass
Liquid-crystal glass is a laminated glass, with clear or colored sheets sandwiching a liquid crystal film, assembled between at least two plastic interlayers. In this window normal "off" condition, the glazing is a translucent milky white. When electric current is applied, however, it turns slightly hazy clear. The switch between the two states is nearly instantaneous.
Liquid crystal glazing is typically designed for use in internal applications but, there are suppliers that provide glass suitable for external facing windows applications. It generally requires constant energy to maintain its clear state which could be considered a down side.