公开(公告)号：US12289964B2

公开(公告)日：2025-04-29

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

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：US11456343B2

公开(公告)日：2022-09-27

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：US11758769B2

公开(公告)日：2023-09-12

申请号：US17892853

申请日：2022-08-22

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. 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.