公开(公告)号：US20210242289A1

公开(公告)日：2021-08-05

申请号：US17239259

申请日：2021-04-23

Applicant: LG Display Co., Ltd.

Inventor： Daehee KIM ,  JiYoung PARK ,  Hyeju CHOI

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/56

Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.

公开(公告)号：US20200212336A1

公开(公告)日：2020-07-02

申请号：US16725529

申请日：2019-12-23

Applicant: LG Display Co., Ltd.

Inventor： JoonYoung HEO ,  Daehee KIM ,  JiYoung PARK ,  YoungHoon SON ,  Hyeju CHOI

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52

Abstract: A display device comprises a substrate provided with a first subpixel and a second subpixel adjacent to the first subpixel, a first electrode provided on the substrate, including a first sub electrode provided on the first subpixel and a second sub electrode provided on the second subpixel, an organic light emitting layer including a first organic light emitting layer arranged on the first sub electrode and a second organic light emitting layer arranged on the second sub electrode, a second electrode arranged on the organic light emitting layer, and a first bank provided between the first sub electrode and the second sub electrode, partitioning the first subpixel from the second subpixel, wherein the first organic light emitting layer includes a light emitting layer and a first hole transporting layer arranged on the light emitting layer, the first hole transporting layer includes a first sub hole transporting layer and a second sub hole transporting layer, and the first sub hole transporting layer of the first hole transporting layer covers the light emitting layer between the light emitting layer and the second sub hole transporting layer. Therefore, as the first sub hole transporting layer is provided to cover the light emitting layer of the organic light emitting layer, the organic light emitting layer may be prevented from being damaged by an exposure process or a solution process, whereby a defect rate of the complete display device may be reduced.

公开(公告)号：US20240389401A1

公开(公告)日：2024-11-21

申请号：US18657500

申请日：2024-05-07

Applicant: LG Display Co., Ltd.

Inventor： Daehee KIM ,  MoonSoo KIM

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/38

Abstract: A light emitting display apparatus includes a substrate including a display area and a non-display area, a white pixel and color pixels provided in the display area, and a fluorine-based protective layer surrounding the white pixel.

公开(公告)号：US20230133983A1

公开(公告)日：2023-05-04

申请号：US17947303

申请日：2022-09-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Daehee KIM ,  Hyunmin PARK

IPC: H01L51/52 ,  H01L27/32

Abstract: An organic light-emitting display device includes a substrate including a display area in which a plurality of pixels are disposed, and a non-display area surrounding the display area; a dam pattern surrounding the display area and positioned in the non-display area; a first barrier pattern positioned in a first barrier area between the dam pattern and the display area; a second barrier pattern positioned in a second barrier area outside the dam pattern; an organic light-emitting element layer positioned in a pixel area, the first barrier area, and the second barrier area, wherein the organic light-emitting element layer is divided into discontinuous portions spaced from each other via each of the first barrier pattern and the second barrier pattern; and an encapsulation portion covering the display area, the organic light-emitting element layer, the first barrier pattern and the second barrier pattern.

公开(公告)号：US20200161383A1

公开(公告)日：2020-05-21

申请号：US16600440

申请日：2019-10-11

Applicant: LG Display Co., Ltd.

Inventor： Daehee KIM ,  JiYoung PARK ,  Hyeju CHOI

IPC: H01L27/32 ,  H01L51/50 ,  G02B27/01

Abstract: A display device comprises a substrate provided with a first subpixel area and a second subpixel area, a first electrode provided on the substrate, including a first sub electrode provided in the first subpixel area and a second sub electrode provided in the second subpixel area, an organic light emitting layer including a first organic light emitting layer arranged on the first sub electrode and a second organic light emitting layer arranged on the second sub electrode, and a second electrode arranged on the organic light emitting layer, wherein the first organic light emitting layer includes a first pattern layer, a second pattern layer provided on the first pattern layer and a third pattern layer provided on the second pattern layer, the second organic light emitting layer includes a first pattern layer, a second pattern layer provided on the first pattern layer and a third pattern layer provided on the second pattern layer, the first pattern layer of the first organic light emitting layer is spaced apart from the first pattern layer of the second organic light emitting layer, the second pattern layer of the first organic light emitting layer is spaced apart from the second pattern layer of the second organic light emitting layer, and the third pattern layer of the first organic light emitting layer is connected with the third pattern layer of the second organic light emitting layer, and the second pattern layer of the first organic light emitting layer is provided to cover an upper surface and a side of the first pattern layer of the first organic light emitting layer. Therefore, a damage of the light emitting layer can be reduced.

公开(公告)号：US20230200173A1

公开(公告)日：2023-06-22

申请号：US18057719

申请日：2022-11-21

Applicant: LG Display Co., Ltd.

Inventor： Daehee KIM ,  Jongchan SON

IPC: H01L51/00

CPC classification number: H01L27/3218 ,  H01L51/5234 ,  H01L27/3213 ,  H01L2251/308 ,  H01L2251/558

Abstract: The present disclosure provides an organic light-emitting display apparatus and method for manufacturing the same. The organic light-emitting display apparatus includes a pixel including a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel; wherein each of the first to fourth sub-pixels includes an organic light-emitting element including an anode electrode, an organic light-emitting layer disposed on the anode electrode, and a cathode electrode disposed on the organic light-emitting layer, wherein a thickness of the cathode electrode disposed in the fourth sub-pixel is larger than a thickness of the cathode electrode disposed in each of the first to third sub-pixels.

公开(公告)号：US20200176523A1

公开(公告)日：2020-06-04

申请号：US16660772

申请日：2019-10-22

Applicant: LG Display Co., Ltd.

Inventor： Daehee KIM ,  JiYoung PARK ,  Hyeju CHOI

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/56

Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.

公开(公告)号：US20240172486A1

公开(公告)日：2024-05-23

申请号：US18509225

申请日：2023-11-14

Applicant: LG Display Co., Ltd.

Inventor： Daehee KIM ,  MoonSoo KIM

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/1201 ,  H10K59/80521

Abstract: An organic light-emitting display device includes a first anode electrode disposed in a first sub-pixel; a second anode electrode disposed in a second sub-pixel; a third anode electrode disposed in a third sub-pixel; at least one ground electrode disposed in the third sub-pixel and spaced apart from the third anode electrode; a first organic light-emitting layer, a first cathode electrode, a first portion of a second organic light-emitting layer, and a first portion of a second cathode electrode sequentially stacked on the first anode electrode and the second anode electrode; and a second portion of the second organic light-emitting layer and a second portion of the second cathode electrode sequentially stacked on the third anode electrode, wherein at least a portion of a side edge of the second portion of the second cathode electrode contacts the at least one ground electrode.

公开(公告)号：US20200176533A1

公开(公告)日：2020-06-04

申请号：US16696531

申请日：2019-11-26

Applicant: LG Display Co., Ltd.

Inventor： JiYoung PARK ,  KyungHoon LEE ,  Daehee KIM ,  Hyeju CHOI

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: An electroluminescent display apparatus comprises a first subpixel, a second subpixel, and a third subpixel defined on a substrate; a first electrode disposed in each of the first subpixel, the second subpixel, and the third subpixel in the substrate; a bank provided between two adjacent subpixels among the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode; a first light emitting layer disposed on the first electrode of the first subpixel; a second light emitting layer disposed on the first electrode of the second subpixel; a third light emitting layer disposed on the first electrode of the third subpixel; and a second electrode disposed on the first to third light emitting layers, wherein the third light emitting layer is extended onto the bank between the first subpixel and the second subpixel.