CPC G02F 1/1335 (2013.01) [C08F 290/067 (2013.01); C08L 51/003 (2013.01); G02F 1/133308 (2013.01); G02F 1/133502 (2013.01); C08L 2203/20 (2013.01); G02F 1/133331 (2021.01); G02F 2201/50 (2013.01); G02F 2202/023 (2013.01); G02F 2202/28 (2013.01)] | 15 Claims |
1. An image display device comprising:
an image display part;
a light-transmitting protective part arranged on the image display part;
a polarizing plate arranged on a surface of the image display part; and
a cured resin layer disposed on the polarizing plate and arranged between the image display part and the protective part,
wherein the cured resin layer is a cured product of a photocurable resin composition comprising (i) at least one kind of polymer selected from the group consisting of a polyurethane acrylate, a polyisoprene acrylate or an ester thereof, a hydrogenated terpene resin, and a butadiene polymer; and (ii) a photopolymerization initiator, and has:
a light transmittance in a visible region of 90% or more,
a refractive index (nD) of 1.45 or more and 1.55 or less, and
a storage modulus at 25° C. of 1.0×103 to 1.0×106 Pa to function as an adhesive between the image display part and the protective part.
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10. A photocurable resin composition for forming a cured resin layer that is arranged between an image display part of an image display apparatus and a light-transmitting protective part and disposed on a polarizing plate that is arranged on a surface of the image display part, the photocurable resin composition comprising:
at least one kind of polymer selected from the group consisting of a polyurethane acrylate, a polyisoprene acrylate or an ester thereof, a hydrogenated terpene resin, and a butadiene polymer; and
a photopolymerization initiator,
wherein the photocurable resin composition has a curing shrinkage ratio of 5.0% or less, and
a cured resin formed by curing the photocurable resin composition has:
a light transmittance in a visible region of 90% or more,
a refractive index (nD) of 1.45 or more and 1.55 or less and
a storage modulus at 25° C. of 1.0×103 to 1.0×106 Pa to function as an adhesive between the image display part and the protective part.
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12. A cured resin layer arranged between an image display part of an image display apparatus and a light-transmitting protective part and disposed on a polarizing plate that is arranged on a surface of the image display part, the cured resin layer being a cured product of a photocurable resin composition comprising (i) at least one kind of polymer selected from the group consisting of a polyurethane acrylate, a polyisoprene acrylate or an ester thereof, a hydrogenated terpene resin, and a butadiene polymer; and (ii) a photopolymerization initiator, wherein the cured resin layer has:
a light transmittance in a visible region of 90% or more,
a refractive index (nD) of 1.45 or more and 1.55 or less, and
a storage modulus at 25° C. of 1.0×103 to 1.0×106 Pa to function as an adhesive between the image display part and the protective part.
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