광학 시트, 편광판, 광학 시트의 선별 방법 및 광학 시트의 제조 방법, 그리고 표시 장치

• Main Authors: TAYA SHUBOU, MORIKANE HIROYUKI, TOBE YUKI, EGUCHI JUNYA, MATSUDA YOSHINARI
• Format: Patent
• Language: Korean
• Published: 11.06.2018
• Subjects: 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

방현성, 콘트라스트 및 화상의 선명성이 우수함과 함께, 박력 있는 동화상을 표시 가능한 광학 시트를 제공한다. 적어도 한쪽 표면이 요철면인 광학 시트이며, 상기 요철면의 컷오프값 0.8mm의 JIS B0601:1994의 10점 평균 조도 Rz, 컷오프값 0.25mm의 JIS B0601:1994의 10점 평균 조도 Rz및 컷오프값 0.8mm의 JIS B0601:1994의 산술 평균 조도 Ra의 표준 편차 SD가, 이하의 조건 (1) 내지 (3)을 만족시키는 광학 시트. 0.300㎛≤Rz≤0.650㎛ (1) 0.170㎛≤Rz≤0.400㎛ (2) SD≤0.015㎛ (3) 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 μm ≤ Rz0.8 ≤ 0.650 μm; (2) 0.170 μm ≤ Rz0.25 ≤ 0.400 μm; (3) SD ≤ 0.015 μm.