Shatter-proof liquid crystal panel with infrared filtering properties
Patent 4749261 Issued on June 7, 1988. Estimated Expiration Date: 
December 30, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 30, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2237566 3226903 3227593 3406085 3473863 3605594 3703329 3898977 Double-insulated glass window with insulating spacer Erasable thermo-optic storage display of a transmitted image InventorsAssigneeApplicationNo. 06/947793 filed on 12/30/1986US Classes:349/16, Liquid crystal window349/104, Filter349/158, Substrate349/163, Nonchiral additive in the liquid crystal material349/86Microencapsulated or polymer dispersed liquid crystalExaminersPrimary: Miller, Stanley D.Assistant: Gallivan, Richard F. Attorney, Agent or FirmInternational ClassesB60J 3/04 (20060101)B60J 3/00 (20060101) G02F 1/13 (20060101) G02F 1/1334 (20060101) G02F 1/139 (20060101) AbstractLiquid crystal material is operable to modulate light transmitted through a panel such as a sunroof, window or partition. The panel may have safety glazing properties. The panel may also include means for reflecting infrared energy. The liquid crystal material includes operationally nematic liquid crystal having positive dielectric anisotropy and a containment medium for containing plural volumes of the liquid crystal material. The panel includes transparent surfaces with the liquid crystal material disposed therebetween and selectively operable primarily to transmit or primarily to scatter light. The liquid crystal material may alternatively include volumes of liquid crystal with a pleochroic dye in a containment medium for selectively attenuating light.Other References
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