Laminated light-polarizing sheet
First Claim
1. A laminated light-polarizing sheet comprising a light-polarizing film, a polymeric supporting film or sheet having a thickness in the range of 5 to 1000 microns formed to at least one surface of said light-polarizing film, and a transparent conductive layer comprising a metal oxide or a mixture of metal oxides or a metal formed on the surface of said polymeric supporting film or sheet opposite to said light-polarizing film wherein said polymeric supporting film or sheet has the following physical properties:
- Retardation value;
not more than 30 millimicrons;
Heat distortion temperature;
not lower than 80°
C.;
Average visible light transmittance;
not less than 75%;
Water vapor permeability;
not higher than 30 g/m2 ·
24 hr.;
Izod impact strength;
not less than 1.5 kg·
cm/cm;
Degree of swelling on a surface in a solvent;
not more than 0.5%.
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Accused Products
Abstract
A laminated light-polarizing sheet comprising a film or sheet of a polymer, especially a phenoxyether polymer, laminated at least on one surface of a light-polarizing film and a transparent conductive layer formed by vacuum metal evaporation etc. on a surface of a film or sheet to the light-polarizing film, wherein the film or sheet has specified ranges of retardation value, heat distortion temperature, average visible light transmittance, water vapor permeability, Izod impact strength and degree of swelling in solvents.
83 Citations
17 Claims
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1. A laminated light-polarizing sheet comprising a light-polarizing film, a polymeric supporting film or sheet having a thickness in the range of 5 to 1000 microns formed to at least one surface of said light-polarizing film, and a transparent conductive layer comprising a metal oxide or a mixture of metal oxides or a metal formed on the surface of said polymeric supporting film or sheet opposite to said light-polarizing film wherein said polymeric supporting film or sheet has the following physical properties:
-
Retardation value;
not more than 30 millimicrons;Heat distortion temperature;
not lower than 80°
C.;Average visible light transmittance;
not less than 75%;Water vapor permeability;
not higher than 30 g/m2 ·
24 hr.;Izod impact strength;
not less than 1.5 kg·
cm/cm;Degree of swelling on a surface in a solvent;
not more than 0.5%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification