公开(公告)号：US20210091154A1

公开(公告)日：2021-03-25

申请号：US17021514

申请日：2020-09-15

Applicant: LG DISPLAY CO., LTD.

Inventor： SeokWoo SON ,  JungSun BAEK ,  Joyeon KIM

IPC: H01L27/32 ,  H01L51/52

Abstract: Embodiments of the disclosure relate to an organic light emitting display panel and organic light emitting display device including the same, and more specifically, to an organic light emitting display panel and organic light emitting display device which includes an insulation film including at least one concave portion including a flat portion and an inclined portion surrounding the flat portion in at least one subpixel of the active area and a first electrode of an organic light emitting diode disposed on a portion of the concave portion and a surrounding portion disposed around the concave portion in the at least one subpixel area and including at least one protrusion on a surface thereof, thereby enhancing light extraction efficiency.

公开(公告)号：US20240224601A1

公开(公告)日：2024-07-04

申请号：US18388379

申请日：2023-11-09

Applicant: LG Display Co., Ltd.

Inventor： Seongjoo LEE ,  SeungHee NAM ,  JungSun BAEK ,  Yongmin KIM ,  Seungpyo HONG ,  Yooji HWANG

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/80515 ,  H10K59/80518 ,  H10K59/878

Abstract: A subpixel for a display device can include a transistor disposed on a substrate; a first planarization layer disposed on the transistor, the first planarization layer including a concave portion that corresponds to an emission area of the subpixel; an anode electrode disposed in the concave portion of the first planarization layer, a light emitting layer disposed on the anode electrode; and a bank disposed on the anode electrode. Also, a portion of the bank is disposed in the concave portion of the first planarization layer in an area between a portion of light emitting layer and a portion of an inclined side surface of the anode electrode.

公开(公告)号：US20230380220A1

公开(公告)日：2023-11-23

申请号：US18228812

申请日：2023-08-01

Applicant: LG DISPLAY CO., LTD.

Inventor： SeokWoo SON ,  JungSun BAEK ,  Joyeon KIM

IPC: H10K59/122 ,  H10K50/818 ,  H10K59/35

CPC classification number: H10K59/122 ,  H10K50/818 ,  H10K59/35

Abstract: A display panel can include a substrate including an active area and a non-active area; a transistor disposed on the substrate; an insulation film disposed on the transistor, the insulation film including at least one concave portion; and a sub-pixel electrically connected to the transistor, the sub-pixel including an organic light emitting diode disposed on the insulation film. Also, the sub-pixel includes at least two light emitting parts and at least one non-light emitting part, and the at least one non-light emitting part is disposed between the at least two light emitting parts, and a surface of the organic light emitting diode includes at least one protrusion located in the at least one non-light emitting part.

公开(公告)号：US20230077261A1

公开(公告)日：2023-03-09

申请号：US17898170

申请日：2022-08-29

Applicant: LG Display Co., Ltd.

Inventor： JungSun BAEK ,  Seongjoo LEE ,  ChangHyun SONG ,  Seungpyo HONG

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device is disclosed. The display device includes: a substrate including a plurality of sub-pixels; an auxiliary line disposed between the plurality of sub-pixels on the substrate; an overcoating layer including a base part having an opening that exposes the auxiliary line and a plurality of protrusion parts protruding from the base part; a first electrode corresponding to each of the plurality of sub-pixels and covering the base part and the plurality of protrusion parts; a bank on a part of the first electrode; an organic layer on the first electrode and the bank; and a second electrode on the organic layer and in contact with the auxiliary line exposed through the opening. An end portion of the bank overlaps with the opening.

公开(公告)号：US20220399414A1

公开(公告)日：2022-12-15

申请号：US17892853

申请日：2022-08-22

Applicant: LG DISPLAY CO., LTD.

Inventor： SeokWoo SON ,  JungSun BAEK ,  Joyeon KIM

IPC: H01L27/32 ,  H01L51/52

Abstract: A display panel can include a substrate including an active area and a non-active area; a transistor disposed on the substrate; an insulation film disposed on the transistor, the insulation film including at least one concave portion; and a sub-pixel electrically connected to the transistor, the sub-pixel including an organic light emitting diode disposed on the insulation film. The sub-pixel includes at least two light emitting parts and at least one non-light emitting part, and the at least one non-light emitting part is disposed between the at least two light emitting parts. A surface of the organic light emitting diode includes at least one protrusion located in at least one of the at least two light emitting parts.

公开(公告)号：US20210074955A1

公开(公告)日：2021-03-11

申请号：US17016938

申请日：2020-09-10

Applicant: LG Display Co., Ltd.

Inventor： JungSun BAEK ,  Taehwan KIM ,  Sunmi LEE ,  Hyeonchul IM

IPC: H01L51/52 ,  H01L27/32

Abstract: Embodiments of the disclosure relate to an organic light emitting display panel and an organic light emitting display device including the same, and more specifically, to an organic light emitting display panel and an organic light emitting display device which include: an insulation film with at least one concave portion including a flat portion and an inclined portion surrounding the flat portion in at least one subpixel, a first electrode disposed on the concave portion, an organic layer disposed on the first electrode, a second electrode disposed on the organic layer, an encapsulation layer disposed on the second electrode, and at least one structure disposed on the encapsulation layer, overlapping at least one light emitting area, and having at least a side surface where a light reflecting member is disposed, thereby enhancing light extraction efficiency.