Lamellar pellicle for thermography
OwnerYves Quennevilleinventor
Life of this patent
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Abstract
The disclosure is of a composite lamellar pellicle for producing thermographic patterns by means of liquid crystals which are spread upon an inner sheet and sandwiched between two outer sheets both of which have adequate mechanical strength for normal handling and at least one of which is transparent, all three layers preferably being poor conductors of heat and flexible without being elastic.
Claims7
A temperature-responsive lamellar flexible pellicle for producing thermographic displays, comprising in combination a transparent inner sheet, a covering of liquid crystals which change color with temperature upon said inner sheet, an opaque inner backing sheet covering said crystals, an outer backing sheet covering said inner backing sheet, a transparent outer front sheet covering said transparent inner sheet, said outer backing sheet and said outer front sheet being of material having mechanical strength and being secured to each other by adhesive at their marginal zones, and a stiff rectangular frame in which said pellicle is mounted.
Dependencies are inferred from the claim text.