Invention Grant
- Patent Title: Organic el element, and display device, imaging apparatus, lighting device, and movable body including the same
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Application No.: US16393642Application Date: 2019-04-24
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Publication No.: US10937979B2Publication Date: 2021-03-02
- Inventor: Naoki Yamada , Itaru Takaya , Jun Kamatani , Hirokazu Miyashita
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc., IP Division
- Priority: JPJP2018-085874 20180426
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L27/32 ; H01L51/52
Abstract:
An organic EL element includes a first electrode, a first luminescent layer, a second luminescent layer, a third luminescent layer, and a second electrode, in this order. The second luminescent layer is in contact with the first luminescent layer and the third luminescent layer. The first luminescent layer contains a red dopant and a first host material. The second luminescent layer contains a blue dopant and a second host material, and the third luminescent layer contains a green dopant and the second host material. The second host material is different from the first host material.
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Information query
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