公开(公告)号：US11581397B2

公开(公告)日：2023-02-14

申请号：US17232809

申请日：2021-04-16

Applicant: LG Display Co., Ltd.

Inventor： Eunah Kim ,  Hyunju Jung

IPC: H01L23/58 ,  H01L21/36 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L25/065 ,  H01L25/16

Abstract: Disclosed herein are a stretchable display panel and a stretchable device. The stretchable display panel comprises: a lower substrate having an active area and a non-active area surrounding the active area; a plurality of individual substrates disposed on the lower substrate, spaced apart from each other and located in the active area; a connection line electrically connecting a pad disposed on the individual substrate; a plurality of pixels disposed on the plurality of individual substrates; and an upper substrate disposed above the plurality of pixels, wherein the modulus of elasticity of the individual substrates is higher than that of at least one part of the lower substrate. Accordingly, the stretchable display device according to the present disclosure may have a structure that enables the stretchable display device to be more easily deformed when a user stretches or bends the stretchable display device and that can minimize damage to the components of the stretchable display device when the stretchable display device is deformed.

公开(公告)号：US11489127B2

公开(公告)日：2022-11-01

申请号：US17106065

申请日：2020-11-27

Applicant: LG Display Co., Ltd.

Inventor： Hyunju Jung ,  Eunah Kim

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

Abstract: A stretchable display device comprises a plurality of island substrates where a plurality of pixels is defined and spaced apart from each other; a lower substrate disposed under the plurality of island substrates and including a plurality of grooves; and a plurality of connecting lines electrically connecting a plurality of pads disposed on adjacent island substrates of the plurality of island substrates; and a lower adhesive layer disposed under the plurality of island substrates and the plurality of connecting lines, and overlapping the plurality of island substrates.

公开(公告)号：US10943893B2

公开(公告)日：2021-03-09

申请号：US16532942

申请日：2019-08-06

Applicant: LG Display Co., Ltd.

Inventor： Hyunju Jung ,  Eunah Kim

IPC: H01L25/16 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: The present disclosure provides a stretchable display device, comprising: a lower substrate made of a stretchable insulating material and having an active area and a non-active area adjacent to the active area; a plurality of individual substrates spaced apart from each other and disposed in the active area of the lower substrate; pixels disposed on the plurality of individual substrates respectively; and a plurality of connecting lines disposed between the plurality of individual substrates on the lower substrate, and electrically connecting corresponding pads disposed within the plurality of individual substrates respectively. The modulus of the plurality of individual substrates is higher than the lower substrate.

公开(公告)号：US12033544B2

公开(公告)日：2024-07-09

申请号：US17184252

申请日：2021-02-24

Applicant: LG Display Co., Ltd.

Inventor： Eunah Kim ,  Hyunju Jung

IPC: G09F9/30 ,  G06F1/16

CPC classification number: G09F9/301 ,  G06F1/1626 ,  G06F1/1652

Abstract: Disclosed herein are a stretchable display panel and device and a manufacturing method thereof. The stretchable display panel comprises: a lower substrate having an active area and a non-active area surrounding the active area; a plurality of individual substrates disposed on the lower substrate and located in the active area; a plurality of pixels disposed on the plurality of individual substrates; and a connection line disposed between the plurality of individual substrates and the lower substrate, wherein the modulus of the plurality of individual substrates is higher than that of at least one part of the lower substrate, and wherein the connecting line extends to the bottom surface of the individual substrates, such that the connecting line electrically connects a pad disposed on the individual substrates without a step in the top surface of the connecting line. That is, the connecting line has a uniform height from the lower substrate for its entire length. Accordingly, the stretchable display device according to the present disclosure may reduce damage to the connecting line due to a step of the connecting line, so reliability of the stretchable display device may be improved.

公开(公告)号：US11335225B2

公开(公告)日：2022-05-17

申请号：US17029926

申请日：2020-09-23

Applicant: LG Display Co., Ltd.

Inventor： Seulki Kim ,  Hyunju Jung

IPC: G09G3/00 ,  G09G3/3233 ,  G09G3/3266 ,  H01L51/00 ,  H01L27/32 ,  H01L25/16

Abstract: One or more embodiments of the present disclosure provides a stretchable display device. The stretchable display device includes a lower substrate including a display area and a non-display area, a plurality of first substrates and a plurality of second substrates disposed in the display area, a plurality of light emitting elements disposed on each of the plurality of first substrates, a switching transistor and a driving transistor disposed on each of the plurality of second substrates, in which the switching transistor may output a data signal to the driving transistor in accordance with a scan signal and the driving transistor may output a driving current to the light emitting element in accordance with the data signal.

公开(公告)号：US11011599B2

公开(公告)日：2021-05-18

申请号：US16520159

申请日：2019-07-23

Applicant: LG Display Co., Ltd.

Inventor： Eunah Kim ,  Hyunju Jung

IPC: H01L23/58 ,  H01L21/46 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L25/065 ,  H01L25/16

Abstract: Disclosed herein are a stretchable display panel and a stretchable device. The stretchable display panel comprises: a lower substrate having an active area and a non-active area surrounding the active area; a plurality of individual substrates disposed on the lower substrate, spaced apart from each other and located in the active area; a connection line electrically connecting a pad disposed on the individual substrate; a plurality of pixels disposed on the plurality of individual substrates; and an upper substrate disposed above the plurality of pixels, wherein the modulus of elasticity of the individual substrates is higher than that of at least one part of the lower substrate. Accordingly, the stretchable display device according to the present disclosure may have a structure that enables the stretchable display device to be more easily deformed when a user stretches or bends the stretchable display device and that can minimize damage to the components of the stretchable display device when the stretchable display device is deformed.

公开(公告)号：US12166018B2

公开(公告)日：2024-12-10

申请号：US17497640

申请日：2021-10-08

Applicant: LG Display Co., Ltd.

Inventor： Aesun Kim ,  Hyunju Jung

IPC: H01L25/075 ,  H01L23/538 ,  H01L33/62

Abstract: A stretchable display device includes a lower substrate; a plurality of first substrates which is disposed on the lower substrate and includes a first area in which a plurality of sub pixel including a display element and a driving element is disposed and a second area excluding the first area; a plurality of second substrates configured to couple adjacent first substrates among the plurality of first substrates; and a plurality of connection lines which are disposed on the plurality of second substrates and are configured to couple the plurality of sub pixels, and in the second area, a first contact pad and a second contact pad are disposed and the first contact pad and the second contact pad are coupled to the plurality of connection lines via a plurality of contact holes.

公开(公告)号：US12002388B2

公开(公告)日：2024-06-04

申请号：US17184252

申请日：2021-02-24

Applicant: LG Display Co., Ltd.

Inventor： Eunah Kim ,  Hyunju Jung

IPC: G09F9/30 ,  G06F1/16

CPC classification number: G09F9/301 ,  G06F1/1626 ,  G06F1/1652

Abstract: Disclosed herein are a stretchable display panel and device and a manufacturing method thereof. The stretchable display panel comprises: a lower substrate having an active area and a non-active area surrounding the active area; a plurality of individual substrates disposed on the lower substrate and located in the active area; a plurality of pixels disposed on the plurality of individual substrates; and a connection line disposed between the plurality of individual substrates and the lower substrate, wherein the modulus of the plurality of individual substrates is higher than that of at least one part of the lower substrate, and wherein the connecting line extends to the bottom surface of the individual substrates, such that the connecting line electrically connects a pad disposed on the individual substrates without a step in the top surface of the connecting line. That is, the connecting line has a uniform height from the lower substrate for its entire length. Accordingly, the stretchable display device according to the present disclosure may reduce damage to the connecting line due to a step of the connecting line, so reliability of the stretchable display device may be improved.

公开(公告)号：US11699363B2

公开(公告)日：2023-07-11

申请号：US16913457

申请日：2020-06-26

Applicant: LG Display Co., Ltd.

Inventor： Hyunju Jung ,  Eunah Kim

IPC: H01L51/56 ,  G09F9/30 ,  H10K50/844 ,  H10K59/121 ,  H10K59/131 ,  H10K71/00 ,  H10K59/12 ,  H10K102/10

CPC classification number: G09F9/301 ,  H10K50/844 ,  H10K59/121 ,  H10K59/131 ,  H10K71/00 ,  H10K59/1201 ,  H10K2102/101

Abstract: In the stretchable display device of the present disclosure, peeling and delamination of connection lines between adjacent circuits mounted on individual fixed substrates that might occur during stretching is reduced. According to one embodiment of the stretchable display device, the steepness of a slope in step in an insulating layer in contact with connection lines is reduced, which prevents delamination. A plurality of individual substrates are disposed on the lower substrate and located in the active area on the lower substrate. The modulus of elasticity of the individual substrates is significantly higher than the modulus of elasticity of the lower substrate. There is a first inorganic layer positioned on each of the plurality of individual substrates, the first inorganic layer having a sidewall surface extending upward from the first substrate. A organic layer is deposited overlying the first inorganic layer, including overlying the sidewall surface of the first inorganic layer. An electrical connection line is on the organic layer and not in contact with any part of the inorganic layer, providing the additional adhesion and thus preventing delamination of the electrical connection lines from the substrate.

公开(公告)号：US11430773B2

公开(公告)日：2022-08-30

申请号：US17031567

申请日：2020-09-24

Applicant: LG Display Co., Ltd.

Inventor： Hyunju Jung ,  Eunah Kim

IPC: H01L27/15 ,  H01L25/16 ,  H01L23/00

Abstract: In one or more embodiments of the present disclosure, a stretchable display device includes a base substrate having thereon a display area and a non-display area, a plurality of first substrates which is disposed on the display area and has a modulus larger than a modulus of the base substrate, at least one transistor formed on each of the plurality of first substrates, a planarization layer which covers the at least one transistor; at least one light emitting diode which is electrically connected to the at least one transistor and is formed on the planarization layer, and a plurality of adhesive patterns which is attached to each of the at least one light emitting diode, in which the planarization layer includes at least one first sink pattern formed at a side portion of the at least one light emitting diode. The stretchable display device according to the embodiments thereby suppresses the degradation of an extension rate of the stretchable display device.