TRANSPARENT DOUBLE-SIDED ADHESIVE SHEET FOR IMAGE DISPLAY UNIT, CONSTITUENT MEMBER FOR IMAGE DISPLAY UNIT WITH TRANSPARENT DOUBLE-SIDED ADHESIVE SHEET USING THE SAME, AND IMAGE DISPLAY UNIT

摘要

PROBLEM TO BE SOLVED: To provide a novel transparent double-sided adhesive sheet for an image display unit, which can mitigate distortion generated in the adhesive sheet after bonding, even when the bonding surface has a level difference of 50 μm to 100 μm under limitation that a thickness of the adhesive sheet is kept at 200 μm or less, has resistance to foaming, and has an excellent cutting property and storage stability.;SOLUTION: The transparent double-sided adhesive sheet for an image display unit comprises an overlapping layer of at least an adhesive layer (A) and an adhesive layer (B). A thickness of the adhesive layer (A) and a thickness of the adhesive layer (B) satisfy a relation, (A)/(B)1.0, at least the adhesive layer (A) has curability by heat or ultraviolet rays, and the adhesive sheet has indentation hardness (C2 Asker hardness) of 40 or more and less than 50.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT