OPTICAL FILM USING MARKINGS, AND MANUFACTURING APPARATUS AND MANUFACTURING METHOD FOR OPTICAL FILM

• Main Authors: LEE, Moon Chan, HER, Eun Kyu, PARK, Jeong Ho, KWON, Hyun Cheol
• Format: Patent
• Language: English; French; Korean
• Published: 01.04.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to an optical film, and a manufacturing apparatus and a manufacturing method of the optical film, which enable optimal formation of markings in consideration of the fact that the physical properties of a stretched optical film vary along the axial direction thereof, and prevention of meandering during winding. La présente invention concerne un film optique, ainsi qu'un appareil de fabrication et un procédé de fabrication du film optique, qui permettent la formation optimale de marquages en tenant compte du fait que les propriétés physiques d'un film optique étiré varient le long de la direction axiale de celui-ci, et la prévention de formation de méandres pendant l'enroulement. 본 발명은 연신 처리된 광학 필름의 축 방향에 따라 물성을 달리하는 점을 고려하여 최적의 마킹 형성 및 권취 시 사행을 방지할 수 있도록 한 광학 필름, 광학 필름 제조 장치 및 제조 방법에 관한 것이다.