Anti-reflective film with surface protection film

The anti-reflective film with a surface protection film addresses hue changes by using a film with specific hardness and water contact angle, ensuring image visibility in high humidity environments.

JP2026110904APending Publication Date: 2026-07-03NITTO DENKO CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NITTO DENKO CORP
Filing Date
2024-12-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Anti-reflective films with surface protection films change hue when exposed to high temperature and high humidity environments, affecting image visibility in display devices.

Method used

An anti-reflective film with a surface protection film comprising a transparent film substrate, an antireflection layer, an antifouling layer, and a surface protection film, where the surface protection film has a base material layer and an adhesive layer with specific hardness and water contact angle, and the antifouling layer has low reflectance and high water contact angle, suppressing hue changes.

Benefits of technology

The film effectively prevents hue changes under high temperature and high humidity conditions, maintaining image visibility by reducing adhesive residue and external contamination.

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Abstract

This invention provides an anti-reflective film with a surface protective film that can suppress color changes of the anti-reflective film when exposed to high temperature and high humidity environments. [Solution] The anti-reflective film 10 with a surface protective film comprises a transparent film substrate 11, an anti-reflective layer 20, an anti-fouling layer 12, and a surface protective film 13 in this order. The surface protective film 13 has a substrate layer 14 and an adhesive layer 15. The anti-fouling layer 12 and the adhesive layer 15 are in contact. The surface hardness of the main surface 15a of the adhesive layer 15 on the side of the anti-fouling layer 12 is 30 kPa or more and 2000 kPa or less. When light with a wavelength of 450 nm is incident on the main surface 12a of the anti-fouling layer 12 on the side of the adhesive layer 15, the reflectance of the light is 1.00% or less. The water contact angle of the main surface 12a of the anti-fouling layer 12 on the side of the adhesive layer 15 is 115° or more.
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