公开(公告)号：US20210115210A1

公开(公告)日：2021-04-22

申请号：US17041121

申请日：2019-04-29

Applicant: LG CHEM, LTD.

Inventor： Seungil BAEK ,  Eun Seon LEE ,  Ha Neul KIM ,  Woo Han KIM

IPC: C08J7/046 ,  C08J7/04 ,  C08J5/18 ,  C08J7/16

Abstract: Provided is a hard coating film exhibiting improved flexibility and curling properties together with excellent hardness property, the hard coating film including a top coating layer and a bottom coating layer each disposed on the top surface and the bottom surface of a support substrate layer, wherein the top coating layer includes a cured product of a first resin composition containing epoxy polysiloxane of the following Chemical Formula 1, and the bottom coating layer includes a cured product of a second resin composition containing epoxy polysiloxane of the following Chemical Formula 1 and an elastomer at a weight ratio of 95:5 to 60:40: (R1SiO3/2)a(R2SiO3/2)b(OR)c   [Chemical Formula 1] wherein in Chemical Formula 1, R1, R2, R, a, b, and c are the same as defined in the specification.

公开(公告)号：US20240059056A1

公开(公告)日：2024-02-22

申请号：US18259034

申请日：2022-10-07

Applicant: LG CHEM, LTD.

Inventor： Eun Seon LEE ,  Seung Joon LIM ,  Yoon Bin LIM ,  Seungil BAEK ,  Myoungseok CHO ,  Yeongkyu CHOI ,  Gieun PARK

IPC: B32B27/28 ,  B32B7/12 ,  B32B37/12 ,  B32B27/18 ,  B32B17/10 ,  H05K5/03

CPC classification number: B32B27/283 ,  B32B7/12 ,  B32B37/12 ,  B32B27/18 ,  B32B17/10 ,  H05K5/03 ,  B32B2457/20 ,  B32B2307/7376 ,  B32B2383/00

Abstract: The present invention relates to a cover window for a flexible display device of substrate-less type which simultaneously achieves a physical property balance between flexibility and high hardness even without a substrate film, particularly has almost no damage to the film even by repetitive bending or folding operation, and thus, can be easily applied to bendable, flexible, rollable, or foldable mobile devices, display devices, and the like, and a flexible display device including the same.

公开(公告)号：US20230161079A1

公开(公告)日：2023-05-25

申请号：US17996851

申请日：2021-11-30

Applicant: LG CHEM, LTD.

Inventor： Myoungseok CHO ,  Seung Joon LIM ,  Yoon Bin LIM ,  Eun Seon LEE ,  Yeongkyu CHOI ,  Gieun PARK

IPC: G02B1/14 ,  C08G77/14 ,  C08J7/046 ,  C08J7/04

CPC classification number: G02B1/14 ,  C08G77/14 ,  C08J7/046 ,  C08J7/042

Abstract: This invention relates to an optical laminate comprising: a hard coating layer comprising polysiloxane; a primer layer; and an anti-finger print layer comprising a fluorine-containing compound, and having specific change in water contact angle and specific change in coefficient of friction, before and after conducting friction test on the anti-finger print layer; and a flexible display device including the same.

公开(公告)号：US20210072427A1

公开(公告)日：2021-03-11

申请号：US17101967

申请日：2020-11-23

Applicant: LG CHEM, LTD.

Inventor： Ha Neul KIM ,  Eun Seon LEE ,  Seungil BAEK ,  Se Jeong KIM ,  Woo Han KIM ,  Yeongkyu CHOI

IPC: G02B1/14 ,  C09D5/00 ,  C09D183/06 ,  C09D127/18 ,  C09D133/06 ,  G02B1/18 ,  G02B5/30

Abstract: The present disclosure provides an optical laminate which exhibits improved adhesive strength and scratch resistance together with excellent hardness and fingerprint resistance properties, by further including a fingerprint-resistant layer including an organosilane having excellent adhesion strength with the hard coating layer and an anti-fouling function on the hard coating layer including the transparent support substrate layer and the hard coating layer.

公开(公告)号：US20230384834A1

公开(公告)日：2023-11-30

申请号：US18249780

申请日：2021-08-23

Applicant: LG CHEM, LTD.

Inventor： Gieun PARK ,  Eun Seon LEE ,  Seung Joon LIM ,  Yoon Bin LIM ,  Seungil BAEK ,  Se Jeong KIM ,  Myoungseok CHO ,  Yeongkyu CHOI

IPC: G06F1/16 ,  H04M1/02 ,  G02B1/14 ,  C09D183/04 ,  C08J7/04 ,  C09D133/10

CPC classification number: G06F1/1656 ,  G06F1/1652 ,  G06F1/1616 ,  H04M1/0268 ,  H04M1/0216 ,  G02B1/14 ,  C09D183/04 ,  C08J7/042 ,  C09D133/10 ,  C08J2383/04 ,  C08J2333/10

Abstract: The present disclosure relates to an optical laminate which hardly has a risk of damaging the film even in repetitive bending or folding operations, and thus can be easily applied to bendable, flexible, rollable or foldable mobile devices, display devices, and the like, to a cover window for flexible display device including the same, and to a flexible display device including the same.

公开(公告)号：US20220145129A1

公开(公告)日：2022-05-12

申请号：US17438159

申请日：2020-08-14

Applicant: LG CHEM, LTD.

Inventor： Eun Seon LEE ,  Seung Joon LIM ,  Ha Neul KIM ,  Seungil BAEK ,  Se Jeong KIM ,  Myoungseok CHO ,  Yeongkyu CHOI

IPC: C09D183/06 ,  C08G77/18 ,  H04M1/02 ,  G06F1/16

Abstract: The present disclosure relates to an optical laminate for a flexible display device comprising: a support substrate layer; and a hard coating layer positioned on at least one surface of the support substrate layer and having a thickness of 10 μm to 250 μm, wherein the hard coating layer is a polysiloxane containing 70 mol % or more of a repeating unit including an epoxy group-containing functional group; and an elastomeric polymer including polycaprolactone polyol, and wherein the polysiloxane has a number average molecular weight of more than 3,000 and less than 10,000, and a polydispersity Index (PDI) of 1.0 or more and less than 5.0, and a flexible display device including the same.

公开(公告)号：US20210245483A1

公开(公告)日：2021-08-12

申请号：US16973339

申请日：2019-10-25

Applicant: LG CHEM, LTD.

Inventor： Eun Seon LEE ,  Ha Neul KIM ,  Seungil BAEK ,  Woo Han KIM

IPC: B32B27/28 ,  B32B27/36 ,  B32B27/08 ,  C08G77/14 ,  C08G77/20

Abstract: The present disclosure relates to a hard coating laminate having an internal bending property and an external bending property including: a supporting substrate layer containing a thermoplastic resin; and a hard coating layer having a thickness of 50 to 240 μm, wherein the hard coating layer includes a cured product of a resin composition including a siloxane resin having a predetermined glycidoxypropyl modified silicone structure and an elastomeric polymer.