公开(公告)号：US20220246870A1

公开(公告)日：2022-08-04

申请号：US17728079

申请日：2022-04-25

Applicant: LG Display Co., Ltd.

Inventor： Hyokang Lee ,  Kihan Kim

IPC: H01L51/00 ,  G09G3/3225 ,  H01L27/32

Abstract: A stretchable display devices includes a flexible substrate. A plurality of first substrates and a plurality of second substrates are disposed on the substrate. The plurality of first substrates are spaced from each other and the plurality of second substrates, and the plurality of second substrates are spaced from each other. A plurality of connection supports are coupled to the plurality of first and second substrates. Connection lines extend on the plurality of connection supports to form an electrical connection between the plurality of first substrates and the plurality of second substrates. A distance between one of the plurality of second substrates and a corresponding outer one of the plurality of first substrates is greater than a distance between the plurality of first substrates to reduce stress on the plurality of second substrates during bending or stretching of the display device.

公开(公告)号：US20240258484A1

公开(公告)日：2024-08-01

申请号：US18421568

申请日：2024-01-24

Applicant: LG DISPLAY CO, LTD.

Inventor： Moonbae Gee ,  Hyokang Lee

IPC: H01L33/62 ,  G09G3/3225 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  G09G3/3225 ,  H01L25/167 ,  H01L27/1248 ,  G09G2300/0842

Abstract: Disclosed is a display device in which a redundant light-emitting element is applicable to a micro light-emitting display device to which a high-resolution panel is applied. The display device includes at least one light-emitting element; and at least one redundant light-emitting element respectively disposed in a manner corresponding to the at least one light-emitting element, wherein a first electrode of the light-emitting element is connected to a second electrode of the redundant light-emitting element via a connection electrode. Thus, even when the light-emitting element is defective, light of a corresponding color thereto is emitted normally from the redundant light-emitting element. Thus, a failure of each pixel may be lowered.

公开(公告)号：US11348990B2

公开(公告)日：2022-05-31

申请号：US17084565

申请日：2020-10-29

Applicant: LG Display Co., Ltd.

Inventor： Kihan Kim ,  Hyokang Lee

IPC: H01L27/32 ,  H01L27/15 ,  H01L51/52

Abstract: A stretchable display device comprises a lower substrate; a plurality of island substrates spaced apart from each other and disposed on the lower substrate; a plurality of pixels defined on the plurality of island substrates; a plurality of base polymers disposed between adjacent island substrates of the plurality of island substrates; and a plurality of conductive particles distributed in the base polymer and electrically connecting a plurality of pads disposed on the adjacent island substrates.

公开(公告)号：US10892314B2

公开(公告)日：2021-01-12

申请号：US16516795

申请日：2019-07-19

Applicant: LG Display Co., Ltd.

Inventor： Kihan Kim ,  Hyokang Lee

IPC: H01L27/32 ,  H01L27/15 ,  H01L51/52

Abstract: A stretchable display device comprises a lower substrate; a plurality of island substrates spaced apart from each other and disposed on the lower substrate; a plurality of pixels defined on the plurality of island substrates; a plurality of base polymers disposed between adjacent island substrates of the plurality of island substrates; and a plurality of conductive particles distributed in the base polymer and electrically connecting a plurality of pads disposed on the adjacent island substrates.

公开(公告)号：US20200161276A1

公开(公告)日：2020-05-21

申请号：US16688900

申请日：2019-11-19

Applicant: LG Display Co., Ltd.

Inventor： Kihan Kim ,  Hyokang Lee

IPC: H01L25/065 ,  G06F1/16 ,  G09F9/30

Abstract: The present disclosure discloses a stretchable display device, including a lower substrate as a first substrate, the lower substrate having an active area and a non-active area surrounding the active area; a plurality of second substrates positioned on the lower substrate and horizontally separated from each other; a transistor disposed on the second substrate; a plurality of light emitting elements disposed above the transistor and above the plurality of second substrates; a plurality of connecting substrate positioned between the plurality of second substrates to interconnect two adjacent second substrates. With this structure of the display, especially to the structure of the connecting substrate and the connection line, the stress applied to the stretchable display the connecting lines may be attenuated.

公开(公告)号：US11436950B2

公开(公告)日：2022-09-06

申请号：US16924012

申请日：2020-07-08

Applicant: LG Display Co., Ltd.

Inventor： Kihan Kim ,  Hyokang Lee

IPC: G09F9/30 ,  H01L51/00 ,  H01L27/32 ,  H01L51/52

Abstract: A stretchable display device according to embodiments of the present disclosure includes a plurality of first substrates in which a plurality of pixels are defined, the plurality of first substrates being spaced apart from each other; a plurality of second substrates disposed between first substrates adjacent to each other among the plurality of first substrates to connect the adjacent first substrates; a lower substrate on which a plurality of first areas, a plurality of second areas, and a plurality of third areas excluding the plurality of first areas and the plurality of second areas are defined, the plurality of first substrates being disposed in the plurality of first areas, and the plurality of second substrates being disposed in the plurality of second areas; and a plurality of align keys disposed in a portion of the plurality of third areas and formed of an elastic material.

公开(公告)号：US11342520B2

公开(公告)日：2022-05-24

申请号：US16795175

申请日：2020-02-19

Applicant: LG Display Co., Ltd.

Inventor： Hyokang Lee ,  Kihan Kim

IPC: H01L27/32 ,  H01L51/00 ,  G09G3/3225

Abstract: A stretchable display devices includes a flexible substrate. A plurality of first substrates and a plurality of second substrates are disposed on the substrate. The plurality of first substrates are spaced from each other and the plurality of second substrates, and the plurality of second substrates are spaced from each other. A plurality of connection supports are coupled to the plurality of first and second substrates. Connection lines extend on the plurality of connection supports to form an electrical connection between the plurality of first substrates and the plurality of second substrates. A distance between one of the plurality of second substrates and a corresponding outer one of the plurality of first substrates is greater than a distance between the plurality of first substrates to reduce stress on the plurality of second substrates during bending or stretching of the display device.

公开(公告)号：US11328629B2

公开(公告)日：2022-05-10

申请号：US16922545

申请日：2020-07-07

Applicant: LG Display Co., Ltd.

Inventor： MyoungHo Lee ,  Kihan Kim ,  Hyokang Lee

IPC: H01L51/00 ,  G09F9/30 ,  H01L27/32

Abstract: Provided is a display device. The display device includes a stretchable display device. The stretchable display device includes a lower substrate including a display area and a non-display area. The stretchable display device further includes a plurality of lower connection lines on the lower substrate. The stretchable display device further includes a plurality of first substrates disposed on the display area, the plurality of first substrates defines sub pixels, and a modulus of the plurality of first substrates is larger than a modulus of the lower substrate. The stretchable display device further includes a plurality of connection substrates connecting adjacent first substrates among the plurality of first substrates. The stretchable display device further includes a plurality of upper connection lines disposed on the plurality of connection substrates. Therefore, various connection lines are configured in a limited space to improve an image quality of a stretchable display device.

公开(公告)号：US11018324B2

公开(公告)日：2021-05-25

申请号：US16593860

申请日：2019-10-04

Applicant: LG Display Co., Ltd.

Inventor： Kihan Kim ,  Hyokang Lee ,  Hohyun Keum

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

Abstract: A stretchable display device includes a structure that can minimize damage to a polarizing layer when the stretchable display device is stretched and reduce visibility of external light being reflected to a user by using a polarizing plate having a stretchable characteristic, and the thickness of the stretchable display can be reduced because components disposed under the upper substrate and the polarizing layer are configured to include the same material as the polarizing layer that can be easily stretched in a plurality of directions by alternately disposing stretchable polarizing layers in different directions.

公开(公告)号：US12113160B2

公开(公告)日：2024-10-08

申请号：US17527885

申请日：2021-11-16

Applicant: LG Display Co., Ltd.

Inventor： JunHyuk Song ,  Hyokang Lee ,  Hyowon Kwon ,  MoonBae Gee ,  KiHan Kim

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/15 ,  H01L33/00 ,  H10K59/122 ,  H10K59/123 ,  H10K59/131

CPC classification number: H01L33/62 ,  H01L27/156 ,  H01L33/005 ,  H01L2933/0066

Abstract: According to an aspect of the present disclosure, the display device includes a lower substrate and a plurality of pixel substrates disposed on the lower substrate. The display device also includes a plurality of transistors disposed on the plurality of pixel substrates and a planarization layer disposed on the plurality of pixel substrates to cover upper portions of the plurality of transistors. The display device further includes a plurality of individual connection pads and a common connection pad disposed on the planarization layer. The display device also includes a plurality of light emitting diodes disposed on the plurality of individual connection pads and the common connection pad. At least one of the plurality of individual connection pads and the common connection pad may have a multilayer structure.