Mitsui Chemicals, Inc.

Toshihisa Kitagawa

Shin Fukuda

Tomoyuki Okamura

Katsuhiko Koike

Tsutami Misawa

Tetsunori Shinozaki

Kazuhiro Tanimoto

Taizo Nishimoto

Katsuki Onishi

Fumiharu Yamazaki

Keisuke Sato

Hiroaki Tsushima

Hiroaki Saigou

Makoto Morohashi

Hiroaki Saigo

A polymeric piezoelectric film, including a helical chiral polymer (A) having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, in which, in the film: a crystallinity given by a DSC method is from 20% to 80%; a standardized molecular orientation MORc is from 3.5 to 15.0 when a reference thickness measured by a microwave transmission-type molecular orientation meter is 50 &#x3bc;m; and when a direction parallel to a phase difference streak is a direction X, a direction perpendicular to the direction X and parallel to a main plane of a film is a direction Y, and the phase difference streak is evaluated by an evaluation method A, per a length of 1,000 mm in the direction Y, a number of phase difference streaks with an evaluation value of 60 or more is 0, and a sum of the evaluation values of phase difference streaks with an evaluation value of 20 or more is 1000 or less.

Polymeric piezoelectric film and method for manufacturing thereof

A laminate is provided that can easily attain safety standards, such as impact resistance, while cost reduction is aimed for, for example, when the laminate is provided on a display viewing surface. A display apparatus using the laminate is also provided. By using a filter for a display having a specified parameter, for example, containing a transparent adhesive layer or a transparent resin layer having a specified Young's modulus and a specified thickness, impact resistance is enhanced. By using the filter for a display containing an impact absorption layer having a specified penetration and a specified thickness, impact resistance is enhanced.

Laminate and display apparatus using the same

The display filter is constituted by laminating a transparent adhesive layer (C)containing dye, a polymer film (B), a transparent electrically conductive layer (D), a transparent adhesive layer (E), and a functional transparent layer (A)having an anti-reflection property, a hard coat property, a gas barrier property, an antistatic property and an anti-fouling property sequentially in this order, adhered on a display area; on this occasion, the transparent electrically conductive layer (D)is grounded to a ground terminal of the display via an electrodeand an electrically conductive copper foil adhesive tape

Display filter, display apparatus, and method for production of the same

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Sodegaura, Japan

Toshihisa Kitagawa