公开(公告)号：US11347109B2

公开(公告)日：2022-05-31

申请号：US16756068

申请日：2019-01-21

申请人： LG CHEM, LTD.

发明人： Ji Young Kim ,  Youngjin Kim ,  Kyun Do Park ,  Dae Hee Lee

IPC分类号： G02F1/1337 ,  B32B7/023 ,  B32B7/06 ,  B32B27/16 ,  B32B27/30 ,  G02F1/1335 ,  G02B5/30

摘要： The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film provided on the substrate; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film and comprising a multifunctional acrylate; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, including: laminating the multi-layer liquid crystal film to a polarizer, and peeling off the substrate.

公开(公告)号：US20210333627A1

公开(公告)日：2021-10-28

申请号：US17268319

申请日：2020-01-21

申请人： LG Chem, Ltd.

发明人： Sunghak Bae ,  Sangcholl Han ,  Byung Mook Kim ,  Dae Hee Lee ,  Youngjin Kim

IPC分类号： G02F1/1335

摘要： The present specification relates to a film for compensating for a viewing angle, which comprises a base substrate; a pattern layer; and an optical layer, and in which the pattern layer has a first surface comprising a flat surface and a second surface facing the first surface, and the second surface comprises a plurality of protrusions comprising a curved surface, thereby improving a contrast ratio and a viewing angle and decreasing a color band phenomenon, and a polarizing plate comprising the same, and a display device comprising the same.

公开(公告)号：US11686967B2

公开(公告)日：2023-06-27

申请号：US16757741

申请日：2019-02-27

申请人： LG CHEM, LTD.

发明人： Byung Mook Kim ,  Sunghak Bae ,  Do Ki Chang ,  Kyungki Hong ,  Dae Hee Lee ,  Sangcholl Han ,  Youngjin Kim

IPC分类号： G02F1/1335

CPC分类号： G02F1/133502 ,  G02F1/133528

摘要： The present specification relates to a viewing angle compensation film, a polarizing plate including the same, and a display device including the same, and the viewing angle compensation film includes: a pattern layer; and a low refractive layer, in which a difference in refractive index between the pattern layer and the low refractive layer is 0.02 to 0.4, the pattern layer includes: a first surface which comprises a flat surface; and a second surface which faces the first surface and includes multiple protruding portions, each of the protruding portions includes a first inclined surface and a second inclined surface, an angle θ1 between the first surface and the first inclined surface or a surface extending from the first inclined surface and an angle θ2 between the first surface and the second inclined surface or a surface extending from the second inclined surface are different from each other, and an angle θ between the first inclined surface or the surface extending from the first inclined surface and the second inclined surface or the surface extending from the second inclined surface is 20° to 60°, such that there is an effect of improving a contrast ratio and a viewing angle.

公开(公告)号：US11579484B2

公开(公告)日：2023-02-14

申请号：US17268319

申请日：2020-01-21

申请人： LG Chem, Ltd.

发明人： Sunghak Bae ,  Sangcholl Han ,  Byung Mook Kim ,  Dae Hee Lee ,  Youngjin Kim

IPC分类号： G02F1/1335

摘要： The present specification relates to a film for compensating for a viewing angle, which comprises a base substrate; a pattern layer; and an optical layer, and in which the pattern layer has a first surface comprising a flat surface and a second surface facing the first surface, and the second surface comprises a plurality of protrusions comprising a curved surface, thereby improving a contrast ratio and a viewing angle and decreasing a color band phenomenon, and a polarizing plate comprising the same, and a display device comprising the same.

公开(公告)号：US20200319517A1

公开(公告)日：2020-10-08

申请号：US16756068

申请日：2019-01-21

申请人： LG CHEM, LTD.

发明人： Ji Young Kim ,  Youngjin Kim ,  Kyun Do Park ,  Dae Hee Lee

IPC分类号： G02F1/1337 ,  B32B27/16 ,  G02F1/1335 ,  B32B27/30 ,  B32B7/023 ,  B32B7/06

摘要： The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film provided on the substrate; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film and comprising a multifunctional acrylate; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, including: laminating the multi-layer liquid crystal film to a polarizer, and peeling off the substrate.

公开(公告)号：US11550184B2

公开(公告)日：2023-01-10

申请号：US17609332

申请日：2020-08-20

申请人： LG CHEM, LTD.

发明人： Youngjin Kim ,  Kyun Do Park ,  Do Hyun Kim ,  Dae Hee Lee ,  Sunghak Bae ,  Han Min Seo

IPC分类号： G02F1/1335

摘要： The polarizing plate laminate according to an exemplary embodiment of the present disclosure includes: a polarizer; an adhesive agent layer or a bonding agent layer provided on the polarizer; a viewing angle compensation film provided on the adhesive agent layer or the bonding agent layer; and a base film provided on the viewing angle compensation film.

公开(公告)号：US12124066B2

公开(公告)日：2024-10-22

申请号：US17263079

申请日：2019-07-26

申请人： LG CHEM, LTD.

发明人： Youngjin Kim ,  Do Hyun Kim ,  Seung Kyu Park ,  Dae Hee Lee ,  Ji Young Kim ,  Dong Min Nho ,  Kyun Do Park

IPC分类号： G02B5/30 ,  B29D11/00 ,  G02F1/1335

CPC分类号： G02B5/3033 ,  B29D11/00644 ,  G02F1/133528

摘要： Provided is a method of manufacturing a viewing angle compensation film, comprising the steps of preparing a base and forming a pattern layer on the base, wherein the pattern layer comprises a first surface comprising a flat surface and a second surface opposite to the first surface; the second surface comprises multiple protruding portions, each of the protruding portions includes a first inclined surface and a second inclined surface, and the angle θ formed by the first inclined surface and the second inclined surface is 20° to 60°. Also provided are a method of manufacturing a polarizing plate by using a viewing angle compensation film manufactured by the manufacturing method, a viewing angle compensation film, a polarizing plate, and a display device including same.

公开(公告)号：US11372288B2

公开(公告)日：2022-06-28

申请号：US16756369

申请日：2019-01-22

申请人： LG CHEM, LTD.

发明人： Ji Young Kim ,  Youngjin Kim ,  Kyun Do Park ,  Dae Hee Lee

IPC分类号： G02B5/30 ,  G02F1/1337 ,  B32B7/03 ,  B32B27/16 ,  G02F1/1335 ,  G02F1/13363

摘要： The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film comprising an alignment material and an acrylate in which a weight ratio of the alignment material to the acrylate is 3:1 to 5:1; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, the method including: laminating the multi-layer liquid crystal film to a polarizer and peeling off the substrate.