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US 4,310,577 AGranted
Liquid crystal film laminate
AssigneeLiquid Crystal Products, Inc.
InventorsThomas W. Davison, Fred K. Suzuki
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AssigneeLiquid Crystal Products, Inc.
InventorsThomas W. Davison, Fred K. Suzuki
Estimating the term…
A liquid crystal film laminate embodies an indicator component and a supportive and protective component removable from the indicator component to provide maximum flexibility and minimum mass in the resulting indicating article. The indicator component includes a liquid crystal film and may include a protective layer and/or an adhesive layer. The film has an outer surface which forms one of two opposite side surfaces on the indicator component. The supportive and protective component includes two release surfaces provided by at least one release sheet, such release surfaces separably contacting respective ones of the indicator component side surfaces in covering relation thereto, for removably supporting and protecting the indicator component. The outer surface of the film thereby is exposed to unobstructed view upon removal of the supportive and protective component, for maximum clarity of the indication given by the film. The maximum total thickness of the indicator component preferably is about 4 mils.
A liquid crystal film laminate which comprises an indicator component and a supportive and protective component removable therefrom, said indicator component including a discrete flexible liquid crystal film having an outer surface which forms one of two opposite side surfaces on the component, said film comprising a film-forming polymer matrix having a cholesteric liquid crystalline phase material dispersed therein for providing a visible response to the application of energy, said supportive and protective component including two release surfaces provided by at least one release sheet, said release surfaces separably contacting respective ones of said indicator component side surfaces in covering relation thereto for removably supporting and protecting the indicator component, said outer surface of the film thereby being exposed directly to the atmosphere to provide an unobstructed view of the surface upon removal of said supportive and protective component.
A liquid crystal film laminate which comprises an indicator component and a supportive and protective component removable therefrom, said indicator component having a maximum total thickness of about 4 mils and including, in successive contacting layers:
Dependencies are inferred from the claim text.