Invention Application
- Patent Title: LIGHT MODULATING MATERIALS COMPRISING LIQUID CRYSTAL MICRODROPLETS DISPERSED IN A BIREFRINGENT POLYMERIC MATRIX
- Patent Title (中): 包含在双向聚合物基体中分散的液晶微球的光调制材料
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Application No.: PCT/US1989001446Application Date: 1989-04-07
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Publication No.: WO1989009807A1Publication Date: 1989-10-19
- Inventor: KENT STATE UNIVERSITY , DOANE, Joseph, W. , WEST, John, L.
- Applicant: KENT STATE UNIVERSITY
- Assignee: KENT STATE UNIVERSITY
- Current Assignee: KENT STATE UNIVERSITY
- Priority: US180,215 19880411; US267,232 19881104; US324,051 19890320
- Main IPC: C09K19/52
- IPC: C09K19/52
Abstract:
A haze-free light modulating polymer dispersed liquid crystal (PDLC) material is disclosed which comprises a polymer matrix which is birefringent and possesses anisotropic optical properties similar to those of the dispersed liquid crystal microdroplets such that the PDLC material in its transparent state exhibits a refractive index that is matched for all directions of incident light providing for an optically clear, scatter-free film for all angles of view. Electrooptic light shutters are possible from this material which are transparent in the field OFF-state and opaque in the field ON-state or vice versa, depending upon the microdroplet structure and configuration of the light shutter device.
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