公开(公告)号：US11209693B2

公开(公告)日：2021-12-28

申请号：US16967105

申请日：2019-09-20

Applicant: LG CHEM, LTD.

Inventor： Jae Min Choi ,  Jin Yong Park ,  Sang Hyun Nah ,  Won Chul Lee ,  Jun Cheol Shin

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1337

Abstract: Provided is a liquid crystal display comprising: a liquid crystal cell; an upper polarizing plate provided on one surface of the liquid crystal cell and including a first polarizer and a low moisture-permeable film disposed on one surface of the first polarizer so as to face the liquid crystal cell; and a lower polarizing plate provided on the other surface of the liquid crystal cell and including a second polarizer, wherein a ratio of a shrinkage force in a direction parallel to the absorption axis of the second polarizer of the low moisture-permeable film to a shrinkage force in an absorption-axial direction of the second polarizer is 30% or more.

公开(公告)号：US20210364685A1

公开(公告)日：2021-11-25

申请号：US17287415

申请日：2020-01-10

Applicant: LG CHEM, LTD.

Inventor： Hyun Soo Lee ,  Gae Sung Kim ,  Young Gon Kim ,  Tae Woo Kim ,  Young Tae Kim ,  Jin Yong Park ,  Sang Hyun Nah

IPC: G02B5/30 ,  C08J5/18 ,  B29C71/02 ,  C08J7/04 ,  C08J5/12

Abstract: The present application relates to an optical film and a method for producing a polarizing plate. The present application can provide an optical film satisfying optical and mechanical durability required in a polarizing plate effectively and capable of forming a polarizing plate without causing bending when applied to a display device, and a method for producing a polarizing plate to which the optical film is applied. The present application can provide an optical film capable of realizing the required optical and mechanical durability without causing bending even in a polarizing plate applied to a thin display device and/or a thin polarizing plate, and a method for producing a polarizing plate to which the optical film is applied.

公开(公告)号：US10114159B2

公开(公告)日：2018-10-30

申请号：US15006819

申请日：2016-01-26

Applicant: LG CHEM, LTD.

Inventor： Ji Young Kim ,  Hye Min Yu ,  Kyun Il Rah ,  Jin Yong Park ,  Eungki Lee ,  Taek Geun Nam

IPC: G02B5/30 ,  B32B27/00

Abstract: The present specification relates to a method for manufacturing a polarizer and a polarizer manufactured by using the same, and more particularly, to a method for manufacturing a polarizer, which includes a cross-linking and elongating step using an aqueous solution including a polyvalent carboxylic acid compound and a boric acid compound, and a polarizer manufactured by using the same.