Toppan (TYO: 7911), a global leader in communication, security, packaging, décor materials, and electronics solutions, has developed a "Normal Black" grade of LC MAGIC™, a liquid crystal light control film that changes from transparent to opaque with the flick of a switch.

With LC MAGIC™ Normal Black, visible light transmission is 43% when power is on (left) and 5% when power is off (right). © TOPPAN INC.

LC MAGIC™ Normal Black has a visible light transmission of 5% when power is off. Application to automobile windows and sunroofs creates bright, open spaces when power is on, while ensuring privacy when power is off. This can eliminate the need for shades, improve comfort, and reduce weight.

The shift to electric vehicles and progress of driving automation are expected to transform automobiles into places to relax. At high levels of automation, interiors will become living spaces, and windows will need to protect privacy. Shades or curtains, however, require moving parts—taking up interior space, adding weight, and consuming more power.