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：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：US20220206529A1

公开(公告)日：2022-06-30

申请号：US17542586

申请日：2021-12-06

Applicant: LG DISPLAY CO., LTD.

Inventor： Jieun LEE ,  NohJin MYUNG ,  Eun ROH

IPC: G06F1/16

Abstract: A foldable display device includes a display panel including a folding area and a non-folding area, and a support substrate disposed under the display panel, the support substrate includes a first metal sheet including a plurality of wavy curved portions and a first planarization layer disposed on the first metal sheet, and the support substrate includes a second metal sheet disposed on the first planarization layer and having a planar surface shape and a second planarization layer disposed under the first metal sheet, therefore, since the support substrate integrated into a single layer is disposed under the display panel, folding properties of the display device may be improved, and an overall thickness of the display device may be decreased and a transfer of a pattern boundary or a folding area boundary can be minimized.

公开(公告)号：US20220206528A1

公开(公告)日：2022-06-30

申请号：US17534948

申请日：2021-11-24

Applicant: LG Display Co., Ltd.

Inventor： NohJin MYUNG ,  Wansoo LEE ,  Youngjoo PARK ,  Jieun LEE ,  Eun ROH

IPC: G06F1/16

Abstract: A foldable display device includes a display panel which includes a folding area and non-folding areas on some sides of the folding area, and a hinge unit which is disposed in an area corresponding to the folding area below the display panel to in-fold or out-fold the display panel. The hinge unit includes a plurality of rotary shafts and a plurality of coupling links disposed between the plurality of rotary shafts. Accordingly, the foldable display device can be bi-directionally (e.g., inwardly or outwardly) folded by the hinge unit with a simple structure. Further, a radius of curvature during the folding can be desirably changed by adjusting a component of the hinge unit, for example, a number of the plurality of rotary shafts and the plurality of coupling links, a cross-sectional length, and the like.

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：US20220189349A1

公开(公告)日：2022-06-16

申请号：US17534143

申请日：2021-11-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Eun ROH ,  NohJin MYUNG ,  Jieun LEE

IPC: G09F9/30 ,  G09G3/00 ,  G02B1/14

Abstract: A flexible display device includes: a display panel including a folding area and a non-folding area; and a back plate which includes a base layer which supports the display panel, below the display panel and includes a plurality of grooves on a bottom surface corresponding to the folding area and a filler which is filled in at least a part of the plurality of grooves, and the filler includes a metal fiber. According to the exemplary embodiment of the present disclosure, components such as a plate top, a plate bottom, and a damping layer are not included, but a mechanical property such as impact resistance is satisfied and the thickness of the display device is minimized so that the folding characteristic and the reliability are significantly improved. Therefore, a flexible display device having a larger curvature than that of the related art may be easily implemented.

公开(公告)号：US20240223964A1

公开(公告)日：2024-07-04

申请号：US18513737

申请日：2023-11-20

Applicant: LG Display Co., Ltd.

Inventor： Eun ROH ,  NohJin MYUNG ,  SangWoo JIN ,  Seunghyun SUNG

IPC: H04R17/10 ,  H04R1/02 ,  H04R7/10

CPC classification number: H04R17/10 ,  H04R1/028 ,  H04R7/10 ,  H04R2307/023 ,  H04R2499/15

Abstract: A vibration apparatus includes a vibration member, a cover member, and a vibration generating part between the vibration member and the cover member. At least a portion of vibration generating part is configured to be one body with or directly connected with the vibration member.

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.