Optical sheet, polarizing plate, optical sheet sorting method, optical sheet production method, and display device

Provided is an optical sheet that has excellent anti-glare properties, contrast, and image clarity, and can display dynamic moving images. This optical sheet has at least one surface that is a textured surface, and the ten-point average roughness Rz0.8 determined in accordance with JIS B0601:1994 wi...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUDA, YOSHINARI, TAYA, SHUBOU, EGUCHI, JUNYA, MORIKANE, HIROYUKI, TOBE, YUKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	Provided is an optical sheet that has excellent anti-glare properties, contrast, and image clarity, and can display dynamic moving images. This optical sheet has at least one surface that is a textured surface, and the ten-point average roughness Rz0.8 determined in accordance with JIS B0601:1994 with a cutoff value of 0.8 mm, the ten-point average roughness Rz0.25 determined in accordance with JIS B0601:1994 with a cutoff value of 0.25 mm, and the standard deviation (SD) of the arithmetic mean roughness Ra0.8 determined in accordance with JIS B0601:1994 with a cutoff value of 0.8 mm of the textured surface satisfy conditions (1) to (3). (1) 0.300 [mu]m ≤ Rz0.8 ≤ 0.650 [mu]m; (2) 0.170 [mu]m ≤ Rz0.25 ≤ 0.400 [mu]m; (3) SD ≤ 0.015 [mu]m.