Invention Grant
- Patent Title: Organic electroluminescent device comprising a plurality of light emissive units
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Application No.: US15993516Application Date: 2018-05-30
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Publication No.: US10312474B2Publication Date: 2019-06-04
- Inventor: Junji Kido , Toshio Matsumoto
- Applicant: Rohm Co., Ltd. , Junji Kido , Mitsubishi Heavy Industries, Ltd.
- Applicant Address: JP Kyoto JP Yonezawa-shi JP Tokyo
- Assignee: ROHM CO., LTD.,Junji Kido,MITSUBISHI HEAVY INDUSTRIES LTD
- Current Assignee: ROHM CO., LTD.,Junji Kido,MITSUBISHI HEAVY INDUSTRIES LTD
- Current Assignee Address: JP Kyoto JP Yonezawa-shi JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2002-86599 20020326; JP2003-70135 20030314
- Main IPC: H01L51/52
- IPC: H01L51/52 ; C07C211/58 ; C07C211/61 ; C09K11/06 ; H01L51/50 ; H01L51/56

Abstract:
An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0×102 Ωcm.
Public/Granted literature
- US20180277796A1 ORGANIC ELECTROLUMINESCENT DEVICE Public/Granted day:2018-09-27
Information query
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