公开(公告)号：US11476444B2

公开(公告)日：2022-10-18

申请号：US16933657

申请日：2020-07-20

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo Park ,  Sejin Jang ,  Taehyoung Kwak

IPC: H01L51/52 ,  H01L27/32 ,  G06F1/16

Abstract: A flexible display device includes a flexible display panel. The flexible display device further includes a cover window structure on the flexible display panel, including a flexible film and a first hard coating layer on the flexible film. The first hard coating layer includes a material made of a combination of a siloxane resin and a urethane-acrylic-, acrylic- or epoxy-type linker.

公开(公告)号：US20190155083A1

公开(公告)日：2019-05-23

申请号：US16256610

申请日：2019-01-24

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Geesung Chae ,  Dongcheon Shin ,  Jinki Kim ,  Hyesun Son ,  Sejin Jang

IPC: G02F1/1339 ,  G03F7/20 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1333 ,  H01L29/66 ,  C09K19/54 ,  G02F1/1343 ,  C08F220/18 ,  C08F220/28 ,  G02F1/1362

Abstract: A liquid crystal polymer composition comprising a liquid crystal, acrylic monomers including an acrylic monomer group (A) including a cyclic ring and an acrylic monomer group (B) including a chain structure or a cyclohexanol, and a photo initiator.

公开(公告)号：US12041806B2

公开(公告)日：2024-07-16

申请号：US17116563

申请日：2020-12-09

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo Park ,  Seungkyu Lee ,  Sejin Jang ,  Jungmin Lee ,  Taehyoung Kwak ,  Hyesun Song

IPC: H10K50/00 ,  G02B1/14 ,  H10K50/84 ,  H10K50/86 ,  H10K59/12 ,  H10K77/10 ,  H10K102/00

CPC classification number: H10K50/841 ,  G02B1/14 ,  H10K50/86 ,  H10K59/12 ,  H10K77/111 ,  H10K2102/311

Abstract: A foldable display device includes a foldable display panel and a foldable cover window disposed on the foldable display panel. The foldable cover window includes a flexible film and a first hard coating layer located on the flexible film with the first hard coating layer including a base material in combination with a linker material. The base material is a siloxane-based resin and the linker material is one of: a urethane-acrylic-based linker, an acrylic-based linker, and an epoxy-based linker.

公开(公告)号：US11721244B2

公开(公告)日：2023-08-08

申请号：US17130630

申请日：2020-12-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Changwoo Chun ,  Jungmin Lee ,  Sejin Jang ,  Youngjoo Park

IPC: G09F9/30 ,  G06F1/16 ,  B32B3/30 ,  B32B7/14 ,  B32B27/08

CPC classification number: G09F9/301 ,  B32B3/30 ,  B32B7/14 ,  B32B27/08 ,  G06F1/1616 ,  B32B2255/26 ,  B32B2457/20

Abstract: Provided is a cover window. The cover window includes a substrate layer. The cover window further includes a hard-coating layer on the substrate layer. The cover window further includes a protective film disposed on the hard-coating layer and including a base film and a plurality of protrusions protruding from the base film. The cover window further includes an adhesive layer disposed on surfaces of the plurality of protrusions and bonding the hard-coating layer and the protective film. The protective film includes a first area and second areas disposed on both sides of the first area. The plurality of protrusions are disposed in the first area. The plurality of protrusions have a shape in which the protrusions disposed on one side and the protrusions disposed on the other side are symmetrical to each other with respect to a central line of the first area.

公开(公告)号：US20200051881A1

公开(公告)日：2020-02-13

申请号：US16530634

申请日：2019-08-02

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo Park ,  Sejin Jang ,  YuLim Won ,  KyungHwan Oh

IPC: H01L23/13 ,  H01L27/12

Abstract: A foldable display device is disclosed. The foldable display device includes a display panel including a folding area and a non-folding area, a back plate unit, and a plurality of adhesive layers disposed between the display panel and the back plate unit and between the back plate units. Some of the plurality of adhesive layers includes a first adhesive part and a second adhesive part having different adhesiveness. Therefore, an adhesiveness of the plurality of adhesive layers is controlled to reduce the stress generated at the time of folding the foldable display device.

公开(公告)号：US11978370B2

公开(公告)日：2024-05-07

申请号：US17370581

申请日：2021-07-08

Applicant: LG Display Co., Ltd.

Inventor： Changwoo Chun ,  Sejin Jang ,  JooHye Park ,  Wansoo Lee

IPC: G09F9/30 ,  C09J175/04 ,  H10K50/84 ,  H10K50/844 ,  G02F1/1333 ,  G06F1/16 ,  H10K102/00

CPC classification number: G09F9/301 ,  C09J175/04 ,  H10K50/844 ,  G02F1/133305 ,  G02F1/133331 ,  G06F1/1641 ,  G06F1/1652 ,  H10K2102/331 ,  H10K2102/351

Abstract: A cover window includes a first layer having a first modulus, a second layer disposed on the first layer and having a second modulus smaller than the first modulus, and a third layer disposed on the second layer and having a third modulus equal to or larger than the first modulus, and in which the third layer includes a nanoparticle-polyurethane complex in which polyurethane is bonded with nanoparticles by a covalent bond. Therefore, the cover window of the present disclosure provides effects that the folding and rolling are possible with excellent surface characteristic and the restorability against the pressing and excellent optical property. A flexible display device may include the cover window.

公开(公告)号：US20230006179A1

公开(公告)日：2023-01-05

申请号：US17942877

申请日：2022-09-12

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo Park ,  Sejin Jang ,  Taehyoung Kwak

IPC: H01L51/52 ,  H01L27/32 ,  G06F1/16

Abstract: A flexible display device includes a flexible display panel. The flexible display device further includes a cover window structure on the flexible display panel, including a flexible film and a first hard coating layer on the flexible film. The first hard coating layer includes a material made of a combination of a siloxane resin and a urethane-acrylic-, acrylic- or epoxy-type linker.

公开(公告)号：US10670927B2

公开(公告)日：2020-06-02

申请号：US16256610

申请日：2019-01-24

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Geesung Chae ,  Dongcheon Shin ,  Jinki Kim ,  Hyesun Son ,  Sejin Jang

IPC: G02F1/1339 ,  G03F7/20 ,  G02F1/1343 ,  G02F1/1362 ,  C09K19/54 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368 ,  H01L29/66 ,  C08F220/18 ,  C08F220/28

Abstract: A liquid crystal polymer composition comprising a liquid crystal, acrylic monomers including an acrylic monomer group (A) including a cyclic ring and an acrylic monomer group (B) including a chain structure or a cyclohexanol, and a photo initiator.

公开(公告)号：US09733522B2

公开(公告)日：2017-08-15

申请号：US14327763

申请日：2014-07-10

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Sejin Jang

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1333

CPC classification number: G02F1/133723 ,  G02F1/1333 ,  G02F1/133305 ,  G02F1/133377 ,  G02F1/13378 ,  G02F1/133784 ,  G02F1/1339 ,  G02F2202/28

Abstract: The present disclosure provides a liquid crystal display device and a method for manufacturing the same. The device includes: a first substrate; a second substrate spaced apart from and opposite to the first substrate; a first lower alignment layer formed on an upper surface of the first substrate; a first upper alignment layer formed on a lower surface of the second substrate; a second alignment layer formed in an array on either or both of an upper surface of the first lower alignment layer and a lower surface of the first upper alignment layer; a polymer barrier positioned between the first substrate and the second substrate, the polymer barrier formed on the array of the second alignment layer; and a liquid crystal positioned between the polymer barriers.

公开(公告)号：US11281041B2

公开(公告)日：2022-03-22

申请号：US16702345

申请日：2019-12-03

Applicant: LG Display Co., Ltd.

Inventor： KyungHwan Oh ,  Sejin Jang ,  YuLim Won ,  Youngjoo Park

IPC: G02F1/1335 ,  G02F1/13363

Abstract: According to an aspect of the present disclosure, a cover glass structure includes: a cover glass; a polarizing layer disposed under the cover glass and including a liquid crystal and a dye; and a phase retardation layer disposed under the polarizing layer. The polarization layer polarizes light propagating through the polarizing layer and the phase retardation layer delays a phase of light propagating through the phase retardation layer.