公开(公告)号：US20230021348A1

公开(公告)日：2023-01-26

申请号：US17890584

申请日：2022-08-18

Applicant: LG Display Co., Ltd.

Inventor： Eunae CHO ,  Seungkyu LEE

IPC: G09F9/30 ,  G06F1/16 ,  H01L27/32

Abstract: Provided is a foldable display device. The display device comprises a display panel including a folding area and non-folding areas on both sides of the folding area, a back plate disposed under the display panel, a first support layer disposed under the back plate and having an opening pattern in a portion thereof corresponding to the folding area, and an impact absorbing layer disposed under the first support layer. The impact absorbing layer includes a first portion corresponding to the folding area and a second portion corresponding to the non-folding areas, and a modulus of the first portion is greater than a modulus of the second portion. Accordingly, even when a point impact is applied to the folding area, the point impact is converted into a surface impact, so that damage to the display panel or the touch panel by the point impact can be prevented more effectively. Consequently, impact resistance characteristics of the display device may be improved.

公开(公告)号：US20220093867A1

公开(公告)日：2022-03-24

申请号：US17408015

申请日：2021-08-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Heeyeon HWANG ,  Eun ROH ,  NohJin MYUNG ,  Seungkyu LEE ,  Jieun LEE

IPC: H01L51/00 ,  G09F9/30 ,  C08L101/12

Abstract: A flexible substrate, a method for preparing the same, and a display device including the same, and more particularly, to a flexible substrate including: a first polymer layer including a first polymer; second polymer layers which include second polymers and are located above and below the first polymer layer; and first interfacial crosslinked layers which are located between the first polymer layer and the second polymer layers and include a first crosslinked polymer having a network structure in which the first polymer and the second polymer are crosslinked, in which the stiffness of the first polymer layer is higher than the stiffness of the second polymer layer and the softness of the second polymer layer is higher than the softness of the first polymer layer, a method for preparing the same, and a display device including the same.

公开(公告)号：US20190165060A1

公开(公告)日：2019-05-30

申请号：US16033084

申请日：2018-07-11

Applicant: LG Display Co., Ltd.

Inventor： Suk CHOI ,  NohJin MYUNG ,  Wansoo LEE ,  Sinchul KANG ,  Seungkyu LEE ,  Miyeon Seo

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52

Abstract: A foldable display device includes a display panel configured to be folded around a folding axis. The display panel includes spacers disposed in a non-folding area and a folding area, and the spacers may have different sizes or densities. Dimensions of the spacers may be in a direction of the folding axis or intersect the direction of the folding axis. The display panel also includes pixels in an active area that overlap with the spacers, which may help reduce peeling, cracking, defects, or reduction in pixel brightness due to folding of the display device.

公开(公告)号：US20230200110A1

公开(公告)日：2023-06-22

申请号：US17980219

申请日：2022-11-03

Applicant: LG Display Co., Ltd.

Inventor： SangHoon OH ,  NohJin MYUNG ,  Seungkyu LEE ,  Jieun LEE ,  Eun ROH ,  Heeyeon HWANG

IPC: H01L51/52

CPC classification number: H01L51/5237 ,  H01L2251/5338

Abstract: Provided is a display device. The display device includes a display panel; a support substrate supporting the display panel below the display panel and including a plurality of opening patterns; and an adhesive layer which is disposed on the support substrate and includes a plurality of first areas provided so as to correspond to each of the plurality of opening patterns and a second area enclosing the plurality of first areas and having a Young's modulus lower than that of the plurality of first areas. Each of the first area is larger than the corresponding opening pattern.

公开(公告)号：US20220037601A1

公开(公告)日：2022-02-03

申请号：US17373459

申请日：2021-07-12

Applicant: LG Display Co., Ltd.

Inventor： Wansoo LEE ,  Seungkyu LEE ,  Yeonjae JEONG ,  JooHye PARK ,  NohJin MYUNG ,  Sejin JANG

IPC: H01L51/00 ,  H01L51/52 ,  B32B17/06

Abstract: A flexible display device includes a flexible substrate including a display area and a non-display area, an organic light emitting element disposed on the flexible substrate, and a cover member disposed on the organic light emitting element and including a plurality of thin glass plates and an adhesive layer between the plurality of thin glass plates, wherein each of the plurality of thin glass plates has a thickness of 0.1 mm or less. According to an aspect of the present disclosure, it is possible to provide a flexible display device that simultaneously satisfies folding characteristics and impact resistance while maintaining high surface characteristics of glass itself by using a cover member in which the plurality of thin glass plates are stacked.

公开(公告)号：US20230209233A1

公开(公告)日：2023-06-29

申请号：US17941927

申请日：2022-09-09

Applicant: LG Display Co., Ltd.

Inventor： Eun ROH ,  NohJin MYUNG ,  Seungkyu LEE ,  SangHoon OH ,  Jieun LEE

IPC: H04R1/02 ,  H04R17/00

CPC classification number: H04R1/028 ,  H04R17/00 ,  H04R2499/15

Abstract: A sound apparatus includes a first vibration member, a second vibration member adjacent to the first vibration member, a third vibration member adjacent to the second vibration member, a first vibration apparatus configured to vibrate the first vibration member and the second vibration member and output a sound of a first pitched sound band and a sound of a second pitched sound band which differ, and a second vibration apparatus disposed at a rear surface of the third vibration member and configured to vibrate the third vibration member and output a sound of a third pitched sound band which differs from the sound of the first pitched sound band.

公开(公告)号：US20210174711A1

公开(公告)日：2021-06-10

申请号：US17109983

申请日：2020-12-02

Applicant: LG Display Co., Ltd.

Inventor： Eunae CHO ,  Seungkyu LEE

IPC: G09F9/30 ,  H01L27/32 ,  G06F1/16

Abstract: Provided is a foldable display device. The display device comprises a display panel including a folding area and non-folding areas on both sides of the folding area, a back plate disposed under the display panel, a first support layer disposed under the back plate and having an opening pattern in a portion thereof corresponding to the folding area, and an impact absorbing layer disposed under the first support layer. The impact absorbing layer includes a first portion corresponding to the folding area and a second portion corresponding to the non-folding areas, and a modulus of the first portion is greater than a modulus of the second portion. Accordingly, even when a point impact is applied to the folding area, the point impact is converted into a surface impact, so that damage to the display panel or the touch panel by the point impact can be prevented more effectively. Consequently, impact resistance characteristics of the display device may be improved.

公开(公告)号：US20250107427A1

公开(公告)日：2025-03-27

申请号：US18971167

申请日：2024-12-06

Applicant: LG DISPLAY CO., LTD.

Inventor： Wansoo LEE ,  Seungkyu LEE ,  Yeonjae JEONG ,  JooHye PARK ,  NohJin MYUNG ,  Sejin JANG

IPC: H10K77/10 ,  B32B17/06 ,  H10K50/842 ,  H10K102/00

Abstract: A flexible display device includes a flexible substrate including a display area and a non-display area, an organic light emitting element disposed on the flexible substrate, and a cover member disposed on the organic light emitting element and including a plurality of thin glass plates and an adhesive layer between the plurality of thin glass plates, wherein each of the plurality of thin glass plates has a thickness of 0.1 mm or less. According to an aspect of the present disclosure, it is possible to provide a flexible display device that simultaneously satisfies folding characteristics and impact resistance while maintaining high surface characteristics of glass itself by using a cover member in which the plurality of thin glass plates are stacked.

公开(公告)号：US20240078935A1

公开(公告)日：2024-03-07

申请号：US18506760

申请日：2023-11-10

Applicant: LG Display Co., Ltd.

Inventor： Eunae CHO ,  Seungkyu LEE

IPC: G09F9/30 ,  G06F1/16 ,  H10K59/40

CPC classification number: G09F9/301 ,  G06F1/1616 ,  G06F1/1656 ,  H10K59/40

Abstract: Provided is a foldable display device. The display device includes a display panel including a folding area and non-folding areas, a back plate disposed under the display panel, a first support layer disposed under the back plate and having an opening pattern in a portion thereof corresponding to the folding area, and an impact absorbing layer disposed under the first support layer. The impact absorbing layer includes a first portion corresponding to the folding area and a second portion corresponding to the non-folding areas, and a modulus of the first portion is greater than a modulus of the second portion. Accordingly, even when a point impact is applied to the folding area, the point impact is converted into a surface impact, so that damage to the display or touch panels by the point impact can be prevented more effectively. Consequently, impact resistance characteristics of the display device may be improved.

公开(公告)号：US20240081092A1

公开(公告)日：2024-03-07

申请号：US18505541

申请日：2023-11-09

Applicant: LG Display Co., Ltd.

Inventor： Youngjoo PARK ,  Seungkyu LEE ,  Sejin JANG ,  Jungmin LEE ,  Taehyoung KWAK ,  Hyesun SONG

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

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.