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：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：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：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：US20220102449A1

公开(公告)日：2022-03-31

申请号：US17488625

申请日：2021-09-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Dongyul KIM ,  Jieun LEE

IPC: H01L27/32 ,  H01L51/52 ,  G06F3/041

Abstract: An organic light emitting display device includes a substrate over which a plurality of first to third subpixels is disposed, each having a light-emitting portion and a non-light-emitting portion surrounding the light-emitting portion, a first electrode disposed in the light-emitting portion of each of the first to third subpixels, a bank having an inverse taper disposed between the first to third subpixels in the non-light-emitting portion, a structure located to contact at least one lateral surface of the bank on the first electrode, a light emitting layer located on the first electrode, the bank and the structure, and having a separation portion in a lateral portion of the bank, and a second electrode located on the light emitting layer.

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.