| 摘要 |
The present invention provides a transparent pressure-sensitive adhesive functional film in which interference fringes hardly occur and corrosion resistance is excellent. The invention relates to a pressure-sensitive adhesive functional film including a transparent substrate, a functional layer (hard coat layer and/or anti-reflection layer) on one surface of the transparent substrate, and a pressure-sensitive adhesive layer on the other surface of the transparent substrate, wherein an amount of (meth)acrylic acid ion extracted from the pressure-sensitive adhesive functional film under the specific conditions is suitably controlled, and an approximate integral value calculated by using a transmittance curve at a wavelength of 400 to 780 nm is suitably controlled.
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