LOW-HAZE ANTI-REFLECTION FILM FOR HIGH RESOLUTION DISPLAY

• Main Authors: KANG, SIN BI, CHOI, HYUN WOO, KIM, BYUNG NAM, WOO, SANG SUN, KIM, YONG WON
• Format: Patent
• Language: English; Korean
• Published: 14.08.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICS; POLISHES; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to an anti-reflection film, which can control convex and concave surfaces. The anti-reflection film includes a hard coat layer on one or more surfaces of a base layer film. A hard coat composition of the hard coat layer includes 6 to 10 functional urethane acrylates, 3 to 6 functional acrylates, and a poly (vinyl alcohol) resin. According to the present invention, the low-haze anti-reflection film with excellent optical properties can cover the uniform concave and convex surfaces in a coating operation to have excellent antiglare properties while increasing production yields by reducing defects and shortening the production process. According to the present invention, the poly (vinyl alcohol) resin is included in the hard coat composition to adjust the molecular weight, content, resin composition, solid content, and other properties thereof. The anti-reflection film has the suitable transparency clarity and haze properties for a high-definition display device. 본 발명은 기재층 필름의 적어도 일면에 하드코팅층을 포함하고, 상기 하드코팅층의 하드코팅 조성물은 6~10관능 우레탄아크릴레이트, 3~6관능 아크릴레이트, 폴리(비닐 알코올)수지를 포함하는 것을 특징으로 하는 표면 요철 제어가 가능한 반사방지필름을 제공한다. 본 발명에 따른 광특성이 우수한 저헤이즈 반사방지 필름은 코팅시 균일한 표면의 요철을 얻을 수 있어 방현 특성이 우수하며, 공정 단축 및 불량 감소에 따른 수율 증가의 효과가 있다. 본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로, 하드코팅 조성물 내에 폴리(비닐 알코올) 수지를 포함하며 이의 분자량, 함량, 수지의 구성, 고형분 등을 조절함으로써, 고해상도 디스플레이에 적합한 투과 선명성 및 헤이즈를 가지는 반사방지 필름을 제공하는 것을 목적으로 한다.