ANTI-GLARE SHEET FOR IMAGE DISPLAY DEVICE

摘要

An anti-glare sheet that exhibits excellent glossy black textures, blackness in dark locations, and anti-glare properties for dynamic images, and that is suited to the implementation of high quality images. The anti-glare sheet has, on at least one surface of a transparent substrate, an anti-glare layer in which a texturized layer comprising diffusion particles and a first binder, and a smoothing layer comprising a second binder are layered in said order from the transparent substrate. The anti-glare sheet is characterized by the texturized layer having first protrusions based on the diffusion particles and on the surface on the opposite side of the texturized layer to the transparent substrate, the smoothing layer having second protrusions based on the first protrusions and on the surface on the opposite side of the smoothing layer to the transparent substrate, and equation (1) and equation (2) being satisfied where Q is the luminance in the direction of regular transmission when visible light is perpendicularly irradiated on the anti-glare sheet from the transparent substrate side, Q30 is the luminance in a direction 30 degrees from regular transmission; and U is the average value of the transmission intensity obtained by respectively extrapolating, to a regular transmission, a straight line connecting the luminance in a direction +2 degrees from regular transmission to the luminance in a direction +1 degree from regular transmission, and a straight line connecting the luminance in a direction −2 degrees from regular transmission to the luminance in a direction −1 degree from regular transmission.;10

主权项

1. An anti-glare sheet having an anti-glare layer comprising a texturized layer made of diffusion particles and a first binder, and a smoothing layer made of a second binder, laminated on at least one side of a transparent base material, in that order from the transparent base material, the texturized layer having first raised sections based on the diffusion particles on the side opposite the transparent base material side, and the smoothing layer having second raised sections based on the first raised sections on the side opposite the transparent base material side, wherein the following inequalities (1) and (2) are satisfied, Q representing the luminance in the direction of regular transmission, when visible light rays have been irradiated on the anti-glare sheet perpendicular to the transparent base material side, Q30 representing the luminance in a direction 30 degrees from regular transmission, and U representing the mean value of the transmission intensity determined by extrapolation of a straight line connecting the luminance in a direction +2 degrees from regular transmission with the luminance in a direction +1 degree from regular transmission, and a straight line connecting the luminance in a direction −2 degrees from regular transmission with the luminance in a direction −1 degree from regular transmission, to regular transmission respectively.
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