Invention Grant
- Patent Title: Organic light-emitting device
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Application No.: US15480471Application Date: 2017-04-06
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Publication No.: US10756274B2Publication Date: 2020-08-25
- Inventor: Younsun Kim , Seulong Kim , Dongwoo Shin , Jungsub Lee , Jino Lim , Hyein Jeong
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin-si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@508a5ffe
- Main IPC: H01L51/00
- IPC: H01L51/00 ; H01L51/50 ; H01L27/32 ; H01L51/52

Abstract:
An organic light-emitting device including a first electrode; a second electrode; emission units stacked between the first electrode and the second electrode and including at least one emission layer; and charge generation layers between two adjacent emission units, the charge generation layers each including an n-type charge generation layer and p-type charge generation layer, a maximum emission wavelength of light emitted by at least one of the emission units is different from that of another emission unit, one n-type charge generation layer includes a first compound and a metal-containing material, the first compound being represented by Formula 1, the p-type charge generation layers include an amino group-free compound, at least one of the emission units further includes a hole transporting (HT)-emission auxiliary layer on a first electrode side thereof, and the HT-emission auxiliary layer includes at least one second compound, the second compound being represented by Formula 2:
Public/Granted literature
- US20170294587A1 ORGANIC LIGHT-EMITTING DEVICE Public/Granted day:2017-10-12
Information query
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