Nitto-denko Corporation

Ryohei Sawazaki

Takeharu Kitagawa

Keiji Hayashi

Atsushi Yasui

Shinya Yamamoto

Akinori Izaki

Shou Takarada

Takuya Mori

Shou Uchida

Masakazu Morimoto

Yuki Kida

Ikkou Hanaki

Akifumi Kido

Jiro Yamato

Kouhei Takeda

A double-sided pressure-sensitive adhesive-layer-attached polarizing film has a polarizing film nearest to a viewer-side of an image display device among at least one polarizing film, a pressure-sensitive adhesive layer A located on the viewer-side, and a pressure-sensitive adhesive layer B on a side of the polarizing film that is opposite to the pressure-sensitive adhesive layer A. The pressure-sensitive adhesive layers A and B are equipped with separators SA and SB, respectively. The polarizing film is a single-side protected polarizing film having a polarizer of 15 &#x3bc;m or less thickness and having a transparent protective film on only a single side of the polarizer. The pressure-sensitive adhesive layer B is located on the polarizer side of the single-side protected polarizing film. The pressure-sensitive adhesive layer A has a thickness of 25 &#x3bc;m or more; and the pressure-sensitive adhesive layer B has a thickness of 25 &#x3bc;m or less.

Double-sided pressure-sensitive-adhesive-layer-attached polarizing film, and image display device

A polarizing plate including an optical functional film and a polarizing film (polarizer), the polarizing plate being thin and excellent in durability of the polarizing film. The polarizing plate includes an optical functional film, a pressure-sensitive adhesive layer, a polarizing film, and a protective film in the stated order, in which: the polarizing film has a thickness of 15 &#x3bc;m or less; the pressure-sensitive adhesive layer has a thickness of 15 &#x3bc;m or less; the optical functional film has a moisture permeability of 200 g/m/24 h or less; and the protective film has a moisture permeability of 1,000 g/m/24 h or less.

Polarizing plate comprising an optical functional film and a protective film having a specified moisture permeability

Growing community of inventors

Ibaraki, Japan

Ryohei Sawazaki