Film for a light valve, and method for manufacturing the film

Details Film for a light valve, and method for manufacturing the film Film for a light valve, and method for manufacturing the film

G - Physics

02

F

G02F 1/07 (2006.01) B05D 3/00 (2006.01) C08J 3/11 (2006.01) G02F 1/01 (2006.01) G02F 1/1335 (2006.01) G02F 1/17 (2006.01)

Patent

CA 2127718

A film for a light valve is made by phase separation of a mixture comprising a homogeneous polymeric solution and a liquid suspension of light-polarizing particles. Uniform liquid-suspension droplets in a polymeric matrix are formed by phase separation processing, e.g., by polymerization or solvent evaporation. Such simple, one-step processing results in cost reduction in display and window applications. Sealing problems of conventional light valves are alleviated.

On fabrique un film (13) pour un modulateur de lumière au moyen d'une séparation de phase d'un mélange comprenant une solution polymère homogène et une suspension liquide de particules de photopolarisation. Les gouttelettes uniformes de suspension liquide dans une matrice polymère sont constituées au moyen d'un traitement de séparation de phase, par exemple, au moyen d'une polymérisation ou d'une évaporation de solvant. Ce procédé simple en une étape permet de diminuer les coûts dans des applications d'affichage et de fenêtres. Ceci permet également de limiter les problèmes de scellement des modulateurs de lumière classiques.

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