OPTICAL FILM
    21.
    发明申请

    公开(公告)号:US20210167334A1

    公开(公告)日:2021-06-03

    申请号:US16772933

    申请日:2018-12-26

    申请人: LG CHEM, LTD.

    IPC分类号: H01L51/52 G02B5/32

    摘要: The present application provides an optical film including a refractive index changing unit region comprising at least one high-refraction unit region and at least one low-refraction unit region, the refractive index changing unit region in which a refractive index varies along the plane direction, and the optical film having excellent abrasion resistance and pressure resistance while having excellent light extraction efficiency.