Anti-glare film
AssigneeDaicel Corporation
InventorsYoshitaka Sugawara, Masaki Hayashi
Life of this patent
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Abstract
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 falling within a range from 6 to 10, 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 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
Claims4
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 falling within a range from 6 to 10, a value of specular gloss of 30% or less, a value of transmission image clarity of 34.1% 60% or less, and a haze value of 50% or less,
- wherein 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,
- wherein the specular gloss is measured with 60-degree specular gloss,
- wherein the transmission image clarity has an optical comb of 0.5 mm,
- wherein the anti-glare layer includes a matrix resin and a plurality of inorganic fine particles dispersed in the matrix resin, the inorganic fine particles having an average particle diameter that is a value falling within a range from 0.5 μm to 5.0 μm, and
- wherein the inorganic fine particles form recesses and protrusions on a surface of the anti-glare layer, and no organic fine particles are included in the anti-glare layer.
Dependencies are inferred from the claim text.