| CPC C09J 7/10 (2018.01) [B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/36 (2013.01); B32B 37/1284 (2013.01); C09J 7/22 (2018.01); C09J 7/403 (2018.01); B32B 2457/206 (2013.01); C09J 2301/122 (2020.08); C09J 2301/312 (2020.08); H10K 59/12 (2023.02); H10K 59/1201 (2023.02)] | 15 Claims |
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1. An adhesive sheet comprising:
a first release film;
a second release film disposed on the first release film; and
an adhesive layer disposed between the first release film and the second release film, the adhesive layer including:
an upper surface facing the second release film;
a lower surface facing the first release film; and
a side surface extending from an edge of the lower surface to an edge of the upper surface, wherein
the side surface of the adhesive layer is inclined with respect to a direction perpendicular to the upper surface and the lower surface,
the first release film, the adhesive layer, and the second release film are all completely cut through such that an incline surface is provided from a top of the second release film to a bottom of the first release film, the incline surface being incline with respect to a direction perpendicular to a lower surface of the first release film and a upper surface of the second release film,
the incline surface is formed on outermost edges of the first release film, the second release film, and the adhesive layer,
the adhesive layer comprises:
a central portion; and
an edge portion between the central portion and the side surface,
a modulus of the edge portion is greater than a modulus of the central portion,
a modulus of the side surface is greater than the modulus of the edge portion,
an indentation creep of the edge portion is less than an indentation creep of the central portion, and
an indentation creep of the side surface is less than the indentation creep of the edge portion.
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