Title:
FINGERPRINT-RESISTANT ANTI-REFLECTION FILM
Document Type and Number:
WIPO Patent Application WO/2015/056738
Kind Code:
A1
Abstract:
A fingerprint-resistant anti-reflection film having a hard coat layer, a high-refractive-index layer, and a low-refractive-index layer laminated in the stated order on one side of a transparent base film. The refractive index of the high-refractive-index layer is 1.50-1.65, and the film thickness thereof is 130-180 nm. The refractive index of the low-refractive-index layer is 1.36-1.42, and the film thickness thereof is 70-100 nm. The minimum reflectance wavelength (λ(min)) in a wavelength range of 350-850 nm is 350-530 nm, and the wavelength (λ(bend)) at the bending point in the wavelength range of 350-850 nm satisfies the relationship λ(min) <λ(bend). Furthermore, the luminous reflectance of the fingerprint-resistant anti-reflection film is 2.0% or lower, the reflection chroma (C) is less than 6.0, and the reflection color difference (△Ｅ) before and after adhesion of sebum soil is less than 7.0.
Inventors:
UCHIDA KEISUKE (JP)
MURASE MASAYUKI (JP)
NOJIMA TAKAYUKI (JP)
MURASE MASAYUKI (JP)
NOJIMA TAKAYUKI (JP)
Application Number:
PCT/JP2014/077537
Publication Date:
April 23, 2015
Filing Date:
October 16, 2014
Export Citation:
Assignee:
NOF CORP (JP)
International Classes:
G02B1/11; B32B7/02; G02B1/10
Foreign References:
| JPH10282305A | 1998-10-23 | |||
| JP2014092770A | 2014-05-19 | |||
| JP2009122416A | 2009-06-04 | |||
| JP2007293301A | 2007-11-08 | |||
| JP2010167744A | 2010-08-05 | |||
| JP2010256880A | 2010-11-11 | |||
| JP2011068000A | 2011-04-07 |
Attorney, Agent or Firm:
OKADA PATENT & TRADEMARK OFFICE, P. C. (JP)
Patent business corporation Okada international patent firm (JP)
Patent business corporation Okada international patent firm (JP)
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