Antiglare sheet for image display device, manufacturing method thereof, method of improving black tint and image sharpness of an image display device using said antiglare sheet and suited for use with both moving images and still images

摘要

The purpose of this invention is to achieve a video display device antiglare sheet having excellent black glossiness, darkness in dark places, and antiglare properties in video applications, and suited to realizing high image quality. The antiglare layer comprising a transparent resin and diffusion particles is provided on at least one surface of a transparent substrate. The antiglare layer is uneven on the surface opposite of the transparent substrate, said unevenness being formed mainly by convexities resulting from the diffusion particles, and the diffusion particles have an impregnation layer formed from the impregnation of the transparent resin. The brightness values and the transmission intensities about the antiglare sheet satisfy specific relational expressions.

主权项

1. A method for producing an antiglare sheet comprising a step of providing an antiglare layer on at least one side of a transparent base material,
wherein the antiglare layer comprises a translucent resin and diffusion particles, the antiglare layer has irregularities on the side opposite the transparent base material, the irregularities are formed primarily by raised sections based on the diffusion particles, the diffusion particles have an impregnation layer formed from the impregnation of the translucent resin into the diffusion particles, and the diffusion particles are dispersed in the translucent resin, wherein control is effected so that the antiglare sheet satisfies the following inequalities (8) and (9) to improve blackness in dark surroundings, to improve vivid complexion and blackness, and to prevent an increase of reflection thereby preventing the generation of stray light,
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