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US 2007/0177271 A1Published application
Antireflection film, polarizing plate and image display
AssigneeFUJIFILM Corporation
InventorNaohiro Matsunaga
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Abstract
An antireflection film is provided and has at least one hard coat layer and a low refractive-index layer having a refractive index of 1.47 or less as the outermost layer on a transparent support. The roughness Ra of the antireflection film is 0.03 μm or more and when it is assumed that average 5° specular reflectance is A and average integrated reflectance is B in a wavelength range of 450 nm to 650 nm, B−A<4 Ra.
Claims6
An antireflection film comprising:
- a transparent support;
- at least one hard coat layer;
- and a low refractive index layer having a refractive index of 1.47 or less, the low refractive index layer being an uppermost layer of the antireflection film,
- wherein the antireflection film has a center-line average roughness Ra of 0.03 μm or more, and the antireflection film satisfies Expression (1):
- B−A<4Ra (1)
- wherein A represents an average 5° specular reflectance in a wavelength rage of 450 to 650 nm, and B represents an average integrated reflectance in the wavelength range.
3 more elements
Dependencies are inferred from the claim text.