Patent ID: 9394465
Filing Date: 2016-07-19
CPC Classification: B32B,C09J,G02F,G06F,Y10T

Claim Text:
1. An image display device, comprising: a glass protective panel; a polarized film; and a laminate comprising a transparent adhesive sheet disposed between the protective panel and the polarized film; wherein: the glass protective panel is an outermost layer of the image display device; the glass protective panel has a thickness of 0.8 mm or greater; the transparent adhesive sheet comprises: the first adhesive layer exhibits different viscoelastic behavior from the second adhesive layers; the first adhesive layer and the second adhesive layers are integrally laminated in an order of second adhesive layer, first adhesive layer, second adhesive layer; the second adhesive layers are formed from a composition comprising an acrylic acid ester polymer and a cross-linking agent selected from multifunctional organic functional group resins having two or more organic functional groups selected from an isocyanate group, an epoxy group, a melamine group, a glycol group, a siloxane group, and an amine group; and a dynamic shear storage modulus G′ (measured with use of a device for measuring viscoelasticity in a shear method under the conditions Jig: Φ25 mm parallel plate, strain level: 0.5%, frequency: 1 Hz, temperature: −70 to 200° C. (measured at 3° C./min temperature elevation rate from −70° C.), sample thickness: 250 μm) of the transparent adhesive sheet is within the ranges below when measured with a 1 Hz frequency temperature dispersion: G′(20° C.) is 2×10 G′(150° C.) is 1×10