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US 2014/0211316 A1Published application
Anti-glare sheet for image display device
AssigneeDai Nippon Printing Co., Ltd.
InventorsGen Furui, Makoto Honda, Takashi Kodama
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AssigneeDai Nippon Printing Co., Ltd.
InventorsGen Furui, Makoto Honda, Takashi Kodama
Estimating the term…
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 comprising binder resin, diffusion particles, and binder particulates. The anti-glare sheet is characterized by the anti-glare layer having protrusions and recesses on the surface on the opposite side thereof to the transparent substrate, the protrusions and recesses being formed by protrusions based on agglomerations of the diffusion particles and/or diffusion particles having in the vicinity thereof a localized layer in which the density of binder particulates is high, 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 joining 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 joining the luminance in a direction −2 degrees from regular transmission to the luminance in a direction −1 degree from regular transmission. 10<Q/U<36 Equation (1) Log10(Q30/Q)<−6 Equation (2)
An antiglare sheet having an antiglare layer comprising a binder resin, diffusion particles and binder fine particles on at least one side of a transparent base material, the antiglare layer having irregularities on the side opposite the transparent base material, the irregularities being formed by raised sections, constituted by the diffusion particles and/or the diffusion particle aggregates, that are surrounded by a localization layer with high density of the binder fine particles, 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 antiglare 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 the direction +2 degrees from regular transmission with the luminance in the direction +1 degree from regular transmission, and a straight line connecting the luminance in the direction −2 degrees from regular transmission with the luminance in the direction −1 degree from regular transmission, to regular transmission respectively.
A method for producing an antiglare sheet having an antiglare layer comprising a binder resin, diffusion particles and binder fine particles on at least one side of a transparent base material, the antiglare layer having irregularities on the side opposite the transparent base material, the irregularities being formed by raised sections constituted by the diffusion particles and/or the diffusion particle aggregates, that are surrounded by a localization layer with high density of the binder fine particles, wherein the antiglare sheet is adjusted so as to satisfy the following (inequality 1) and (inequality 2), Q representing the luminance in the direction of regular transmission, when visible light rays have been irradiated on the antiglare 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 the direction +2 degrees from regular transmission with the luminance in the direction +1 degree from regular transmission, and a straight line connecting the luminance in the direction −2 degrees from regular transmission with the luminance in the direction −1 degree from regular transmission, to regular transmission.
A method for improving the vivid complexion and blackness, blackness in dark surroundings, antiglare property for dynamic images, glazed black feel and black tightness of an image device, wherein in an image device having on the viewing side of the image display device an antiglare sheet having an antiglare layer comprising a binder resin, diffusion particles and binder fine particles on at least one side of a transparent base material, the antiglare layer having irregularities on the side opposite the transparent base material, the irregularities being formed by raised sections based on the diffusion particles and/or the diffusion particle aggregates, that are surrounded by a localization layer with high density of the binder fine particles, the following (inequality 1) and (inequality 2) are satisfied, Q representing the luminance in the direction of regular transmission, when visible light rays have been irradiated on the antiglare 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 the direction +2 degrees from regular transmission with the luminance in the direction +1 degree from regular transmission, and a straight line connecting the luminance in the direction −2 degrees from regular transmission with the luminance in the direction −1 degree from regular transmission, to regular transmission.
Dependencies are inferred from the claim text.