Making liquid suspension type light valve film

Details Making liquid suspension type light valve film Making liquid suspension type light valve film

1993-01-08

1995-04-25

Lovering, Richard D.

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

252583, 252585, 359296, 427164, B05D 506, F21V 914, G02F 101

Patent

active

054097347

ABSTRACT:
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.

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