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|1. (WO2014205896) LIGHT VALVE DEVICE, INFRARED DISPLAY APPARATUS, DEDICATED GLASSES, AND SYSTEM|
|Applicants:||BOE TECHNOLOGY GROUP CO., LTD.
|Title:||LIGHT VALVE DEVICE, INFRARED DISPLAY APPARATUS, DEDICATED GLASSES, AND SYSTEM|
Disclosed are a light valve device, an infrared display apparatus (1), a pair of dedicated glasses (2), and a display system. A display screen seen by a person with naked eyes is an information-free black picture, a glasses wearer can see effective image information, and an image is displayed more privately. The light valve device comprises a first liquid crystal box (7) and a second liquid crystal box (8) disposed opposite. Each of the first liquid crystal box and the second liquid crystal box is formed by two substrates (71, 72, 81, 82) disposed opposite thereto. Alignment films (76, 77, 86, 87) aligned in parallel directions or reverse parallel directions are separately formed on inner sides of the two substrates. The first liquid crystal box and the second liquid crystal box are separately filled with cholesteric liquid crystals (73, 83) which are opposite in arrangement and rotation directions.