OPTICAL FILM AND IMAGE DISPLAY UNIT

• Main Authors: OGAWA YOSHIMASA, EBISU KEISUKE, SATO JUN, KOSAKA YOSUKE, MATSUSHITA HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2019
• Subjects: ADVERTISING; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LABELS OR NAME-PLATES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS; TRANSPORTING

To provide an optical film that can improve yield during manufacture and scratch resistance, and an image display unit including the same.SOLUTION: According to one aspect of the present invention, there is provided an optical film 10 having a multilayer structure with two or more layers, where the surface resistance value on a surface 10A of the optical film 10 is 1×10Ω/square or less, and when a steel wool test is conducted in which the surface 10A of the optical film 10 is rubbed with steel wool back and forth 10 times at a speed of 50 mm/sec while a load of 1 kg/cmis applied to the steel wool, the absolute value of the difference between the haze value of the optical film 10 after the steel wool test and the haze value of the optical film 10 before the steel wool test is 0.1% or less.SELECTED DRAWING: Figure 1 【課題】製造時の歩留まりおよび耐擦傷性を向上させることが可能な光学フィルムおよびこれを備えた画像表示装置を提供する。【解決手段】本発明の一の態様によれば、２層以上の多層構造を有する光学フィルム１０であって、光学フィルム１０の表面１０Ａにおける表面抵抗値が、１×１０１４Ω／□以下であり、光学フィルム１０の表面１０Ａに対しスチールウールに１ｋｇ／ｃｍ２の荷重を加えながら、速度５０ｍｍ／秒で１０往復擦るスチールウール試験を行ったとき、スチールウール試験後の光学フィルム１０のヘイズ値とスチールウール試験前の光学フィルム１０のヘイズ値との差の絶対値が０．１％以下である、光学フィルム１０が提供される。【選択図】図１