Invention Grant
- Patent Title: Polymer enhanced cholesteric electro-optical devices
- Patent Title (中): 聚合物增强胆甾型电光器件
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Application No.: US11435083Application Date: 2006-05-16
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Publication No.: US07652731B2Publication Date: 2010-01-26
- Inventor: Liang-Chy Chien , Lei Shi , Sang Hwa Kim
- Applicant: Liang-Chy Chien , Lei Shi , Sang Hwa Kim
- Applicant Address: US OH Kent
- Assignee: Kent State University
- Current Assignee: Kent State University
- Current Assignee Address: US OH Kent
- Agency: Hudak, Shunk & Farine Co. LPA
- Main IPC: C02F1/1333
- IPC: C02F1/1333 ; C09K19/52 ; C09K19/38

Abstract:
The present invention provides liquid crystal devices comprised of a composite of an internal polymer network localized on the substrate surfaces and short-pitch dual-frequency switchable cholesteric liquid crystal that operate in two different modes including in-plane switching (amplitude modulation) and out-of-plane switching (phase modulation). The invention further provides a method of making a liquid crystal device demonstrating uniform lying helical axis where the device comprises a composite of an internal spatially ordered polymer network localized by in-situ photo-polymerization at the surface of the substrate. The invention can be used for flat panel displays, as well as spatial light modulators for applications such as optical waveguides, optical beam scanners, computer-generated holograms, and adaptive optics.
Public/Granted literature
- US20070269613A1 Polymer enhanced cholesteric electro-optical devices Public/Granted day:2007-11-22
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