Hitachi Chemical Company, Ltd.

Hiroaki Takahashi

Hiroshi Nomura

Michio Uruno

Junichi Imaizumi

Kouhei Horiuchi

Tomoyuki Nakamura

Hajime Nakamura

Mitsuyoshi Shimamura

An adhesive film includes a film-like adhesive layer and a pair of separators sandwiching the adhesive layer. The outer edges of both separators extend outward beyond the outer edge of the adhesive layer, and a blade is used to form a notch on the adhesive layer side of the heavy release separator, along the outer edge of the adhesive layer. The thickness of the heavy release separator is between 50 &#x3bc;m and 200 &#x3bc;m, the average notch depth is between 5 &#x3bc;m and 45 &#x3bc;m and the standard deviation for the notch depth is no greater than 15 &#x3bc;m. Specifying the notch depth allows complete cutting of the adhesive layer with the blade, while also limiting release problems between the heavy release separator and the adhesive layer.

Adhesive film

An electromagnetic wave shield film () comprises a transparent base (), a conductor () positioned on the transparent base () via an adhesive () and having a mesh geometric pattern, and an earth portion () arranged around the conductor () and including conductive regions () which absorb electromagnetic waves, and non-conductive regions () which prevent the earth portion () from being creased.

Electromagnetic shield film, electromagnetic shield unit and display

Growing community of inventors

Chikusei, Japan

Hiroaki Takahashi