Invention Grant
- Patent Title: Organic electroluminescence element, organic electroluminescence display device, and method for producing organic electroluminescence element
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Application No.: US15773577Application Date: 2016-11-07
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Publication No.: US10381588B2Publication Date: 2019-08-13
- Inventor: Manabu Niboshi , Hideki Uchida , Shinji Nakajima , Yoshiyuki Isomura , Eiji Koike , Yuto Tsukamoto , Asae Ito
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: JP2015-222968 20151113
- International Application: PCT/JP2016/082996 WO 20161107
- International Announcement: WO2017/082216 WO 20170518
- Main IPC: H01L27/00
- IPC: H01L27/00 ; H01L51/00 ; H01L51/50 ; H01L51/52 ; H01L51/56 ; H01L27/12 ; H01L29/786
Abstract:
To provide an organic EL element having good injection properties and transport properties of a carrier. Included are: an InGaZnO layer with a composition rich in In2O3 as a transparent electrode contacting a negative electrode; an InGaZnO layer with a stoichiometric ratio of In:Ga:Zn:O=1:1:1:4 as an electron injecting layer; and an InGaZnO layer with a composition rich in Ga2O3 as an electron transport layer contacting a light emitting layer.
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