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US 7,009,665 B2Granted
Electro-optical glazing structures having scattering and transparent modes of operation and methods and apparatus for making the same
OwnerLe Li, Jian-Feng Li +1inventors
InventorsLe Li, Jian-Feng Li, Sadeg M. Faris
Life of this patent
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Abstract
Electro-optical glazing structures having total-scattering and total-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications.
Claims6
An electro-optical glazing structure comprising:
- an electro-optical glazing panel including polymer stabilized cholesteric texture liquid crystal material between electrically conductive electrodes having a first state of operation and a second state of operation,
- said polymer stabilized cholesteric texture liquid crystal material includes a polymer network formed from a polymerization product of a non-reactive chiral liquid crystal material, a monomer, and a photo-initiator, wherein a polymer network is free of a mesogenic groups,
- a radiation sensor coupled to said glazing panel for sensing electromagnetic radiation incident on said glazing panel;
- and
- a microcontroller coupled to said sensor and said microcontroller for switching said glazing panel from said first state of operation to said second state of operation,
- wherein said switching from said first state of operation to said second state of operation is responsive to said electromagnetic radiation.
3 more elements
An electro-optical glazing structure comprising:
- an electro-optical glazing panel including polymer stabilized cholesteric texture liquid crystal material between electrically conductive electrodes having a first state of operation and a second state of operation,
- wherein said polymer stabilized cholesteric texture liquid crystal material includes dichroic dyes;
- a radiation sensor coupled to said glazing panel for sensing electromagnetic radiation incident on said glazing panel;
- and
- a microcontroller coupled to said sensor and said microcontroller for switching said glazing panel from said first state of operation to said second state of operation,
- wherein said switching from said first state of operation to said second state of operation is responsive to said electromagnetic radiation.
3 more elements
Dependencies are inferred from the claim text.