광학 필름, 이것을 사용한 표시 장치, 광학 필름의제조에 사용하는 자외선 흡수층 형성용 조성물

• Main Authors: INOUE RUI, OGATA KEISUKE, MINATO KOICHI, ISHIMARU YOSHIKO, YOKOYAMA YURI
• Format: Patent
• Language: Korean
• Published: 22.09.2023
• Subjects: ADHESIVES; ADVERTISING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; DYES; EDUCATION; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; LABELS OR NAME-PLATES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; SEALS; SIGNS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

표시 장치의 저반사율화, 고휘도화 및 박형화를 도모할 수 있는 광학 필름 및 그것을 사용한 표시 장치, 광학 필름의 제조에 사용하는 자외선 흡수층 형성용 조성물을 제공한다. 투명 기재와, 투명 기재의 한쪽 면 측에 적층되고, 색소를 함유하는 착색층과, 착색층 상에 적층되는 기능층을 구비하고, 색소는, 극대 흡수 파장이 470 내지 530㎚의 범위 내에 있는 제1 색재와, 극대 흡수 파장이 560 내지 620㎚의 범위 내에 있는 제2 색재를 함유하고, 기능층이, 자외선 차폐율 85％ 이상의 자외선 흡수층을 포함하고, 표면의 500g 하중에서의 연필 경도가 H 이상인 것을 특징으로 하는, 광학 필름. Provided are an optical film that can reduce reflectance, increase luminance, and reduce thickness of a display device, a display device using the optical film, and a composition for forming ultraviolet absorbing layer used for producing the optical film. An optical film characterized in that having a transparent substrate, a colored layer laminated on one side of the transparent substrate and containing a dye, and a functional layer laminated on the colored layer, in which the dye contains a first coloring material having a maximum absorption wavelength within the range of 470 to 530 nm, and a second coloring material having a maximum absorption wavelength in the range of 560 to 620 nm, and the functional layer includes an ultraviolet absorbing layer having an ultraviolet shielding rate of 85% or more, and the pencil hardness of the surface under a load of 500 g is H or higher.