Antiglare Glass Sheet Article for Display Device and Method of Manufacturing Same
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United States of America Patent
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Oct 23, 2015
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Jan 14, 2015
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Disclosed herein is an antiglare glass sheet article for display devices in which at least one main surface of the glass sheet is roughened. The article has a roughened surface that includes: a surface with continuous irregularities having an arithmetic average roughness (Ra) of 0.01 to 0.1 μm, and an average interval (RSm) of 1 to 20 μm; and depressions dispersed over the surface and each having a circular entrance portion measuring 3 to 20 μm in diameter, and a depth of 0.2 to 1.5 μm from the entrance portion, the roughened surface having 60 to 600 of the depressions in an observed 250 μm ×250 μm region. The article has desirable antiglare properties with reduced sparkling.
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