Invention Grant
- Patent Title: Organic light-emitting device, method of fabricating the same, and organic light-emitting display apparatus including the device
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Application No.: US15141910Application Date: 2016-04-29
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Publication No.: US09905616B2Publication Date: 2018-02-27
- Inventor: Hajin Song , Jihwan Yoon , Sangwoo Lee , Sangwoo Pyo
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin-Si, Gyeonggi-Do
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Yongin-Si, Gyeonggi-Do
- Agency: Lee & Morse, P.C.
- Priority: KR10-2015-0150453 20151028
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L35/24 ; H01L51/00 ; H01L27/32 ; H01L51/50 ; H01L51/56

Abstract:
An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.
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