公开(公告)号：US20230407026A1

公开(公告)日：2023-12-21

申请号：US18255733

申请日：2021-01-15

Applicant: LG CHEM, LTD.

Inventor： Hanna LEE ,  Inkyu LEE ,  Yeongrae CHANG ,  Jin Young PARK ,  Yongjoon HEO

IPC: C08J7/04 ,  B32B27/36 ,  B32B17/10 ,  B32B27/08 ,  C09D135/02 ,  C09D7/61

CPC classification number: C08J7/042 ,  B32B27/36 ,  B32B17/10 ,  B32B27/08 ,  C09D135/02 ,  C09D7/61 ,  B32B2307/7376 ,  B32B2255/28 ,  B32B2457/20 ,  B32B2255/26 ,  B32B2307/536 ,  B32B2307/546 ,  B32B2307/584 ,  B32B2307/414 ,  B32B2255/10 ,  C08J2435/02 ,  C08J2367/02

Abstract: The present disclosure relates to a protecting film for a cover window of a flexible display device in which a first hard coating layer containing 3 parts by weight or less of inorganic particles based on 100 parts by weight of a binder resin; a second hard coating layer containing 10 to 45 parts by weight of inorganic particles based on 100 parts by weight of a binder resin; and a light-transmitting substrate are sequentially laminated, wherein the first hard coating layer and the second hard coating layer have a specific thickness ratio, a cover window and a display device including the same.

公开(公告)号：US20230142827A1

公开(公告)日：2023-05-11

申请号：US17920684

申请日：2022-02-04

Applicant: LG CHEM, LTD.

Inventor： Inkyu LEE ,  Soonhwa JUNG ,  Chulsuk HONG ,  Yeongrae CHANG ,  Yeonhui YI

IPC: G03F7/00 ,  G03F7/075 ,  G03F7/033 ,  G03F7/038 ,  C08L83/12 ,  G02B5/32 ,  G02B1/04

CPC classification number: G03F7/001 ,  C08L83/12 ,  G02B1/04 ,  G02B5/32 ,  G03F7/033 ,  G03F7/038 ,  G03F7/0757

Abstract: The present invention relates to a photopolymer composition for hologram formation, comprising: a polymer matrix comprising a siloxane-based polymer and a (meth)acrylate polymer containing one or more reactive functional groups in the side chains, a holographic recording method, and an optical element.

公开(公告)号：US20250013197A1

公开(公告)日：2025-01-09

申请号：US18710498

申请日：2023-10-17

Applicant: LG CHEM, LTD.

Inventor： Yeonhui YI ,  Hanna LEE ,  Min Soo KIM ,  Inkyu LEE ,  Chulsuk HONG ,  Soonhwa JUNG

IPC: G03H1/02 ,  C08K13/00 ,  C08L83/04 ,  G03H1/04 ,  G11B7/24 ,  G11B7/24067

Abstract: The present invention relates to a holographic recording media wherein an adhesive force between the photopolymer layer and the adhesive protective layer before light irradiation is 500 to 5,000 gf/20 nm, and a haze value of the photopolymer layer is 3% or less, and an optical element including the holographic recording medium.