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AssigneeDai Nippon Printing Co., Ltd.
InventorsHitomu Watanabe, Makoto Kimura, Ryuji Hashimoto, Yasuhiro Doi
Estimating the term…
Disclosed are a base plate for use for a lens sheet that can realize the unlikeliness to be cracked while the self-sustenance of the lens sheet is being maintained, the lens sheet, and a projection screen comprising that lens sheet. In a base plate, the base plate constructing a lens sheet as a base sheet for a UV-curable resin layer by being bonded to the UV-curable resin layer and being made of ductile materials, the breaking flexure by bending of the ductile material is 0.08 or more; and the Izod impact value thereof is 5 KJ/m2 or more. Also, in a base plate consisting of fragile material, there is used a material that has respective physical properties wherein when it is assumed that F (MPa) represents the shearing force of the UV-curable resin; h (m) represents the thickness of the base plate; E (MPa) represents the bending modulus of elasticity of the fragile material; and ω (dimensionless quantity) represents the breaking flexure by bending, the relationship of F/hEω<1.5 holds true.
A base plate, the base plate constructing a lens sheet as a base sheet for a UV-curable resin layer by being bonded to the UV-curable resin layer and being made of a ductile material, wherein the breaking flexure by bending of the ductile material is 0.08 or more;
A base plate, the base plate constructing a lens sheet as a base sheet for a UV-curable resin layer by being bonded to the UV-curable resin layer and being made of a fragile material, wherein, when it is assumed that F (MPa) represents a shearing force of the UV-curable resin;
A base plate, the base plate constructing a lens sheet as a base sheet for a UV-curable resin layer by being bonded to the UV-curable resin layer and being made of a fragile material, wherein, when it is assumed that F (MPa) represents a shearing force of the UV-curable resin;
Dependencies are inferred from the claim text.