Anti-glare film
An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value of 10 or less, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 40% or less, which is measured with 60-degree specular gloss, and a value of transmission image clarity of 40% or less, which has an optical comb of 0.5 mm. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
1. An anti-glare film attached on a surface of a display, the anti-glare film comprising an anti-glare layer, wherein
the anti-glare layer is set to have a sparkle value of 10 or less, a value of specular gloss of 20% or less, and a value of transmission image clarity of 40% or less,
where the sparkle value is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display,
the specular gloss is measured with 60-degree specular gloss,
the transmission image clarity has an optical comb of 0.5 mm, and
the anti-glare layer includes a matrix resin and a plurality of fine particles that have an average particle diameter set to a value falling within a range from 0.5 μm to 5.0 μm.
2. The anti-glare film according to claim 1 , wherein
the matrix resin in the anti-glare layer includes a plurality of resin components, and
the anti-glare layer has a co-continuous phase structure formed by phase separation of the plurality of resin components.
3. The anti-glare film according to claim 1 , wherein
the anti-glare layer includes the plurality of fine particles dispersed in the matrix resin, and
a difference of refractive indexes of the plurality of fine particles and the matrix resin falls within a range from 0 to 0.07.
4. The anti-glare film according to claim 3 , wherein a ratio G2/G1 of a weight G1 of the matrix resin of the anti-glare layer and a total weight G2 of the plurality of fine particles included in the anti-glare layer is a value falling within a range from 0.03 to 0.20.