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.: US17021514Application Date: 2020-09-15
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Publication No.: US11456343B2Publication Date: 2022-09-27
- 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: H01L27/32
- 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.
Public/Granted literature
- US20210091154A1 ORGANIC LIGHT EMITTING DISPLAY PANEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME Public/Granted day:2021-03-25
Information query
IPC分类: