Invention Grant
- Patent Title: Organic light emitting display panel having improved light efficiency and organic light emitting display device including the same
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Application No.: US18228812Application Date: 2023-08-01
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Publication No.: US12289964B2Publication Date: 2025-04-29
- Inventor: SeokWoo Son , JungSun Baek , Joyeon Kim
- Applicant: LG DISPLAY CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG DISPLAY CO., LTD.
- Current Assignee: LG DISPLAY CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2019-0115803 20190920
- Main IPC: H10K59/122
- 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.
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