Invention Grant
- Patent Title: Organic light emissive device comprising a trilayer cathode
- Patent Title (中): 包括三层阴极的有机发光装置
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Application No.: US12991381Application Date: 2009-03-31
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Publication No.: US08648334B2Publication Date: 2014-02-11
- Inventor: Daniel Alan Forsythe , Simon King , Matthew Roberts
- Applicant: Daniel Alan Forsythe , Simon King , Matthew Roberts
- Applicant Address: GB Cambridgeshire JP Tokyo
- Assignee: Cambridge Display Technology Limited,Sumitomo Chemical Co., Ltd.
- Current Assignee: Cambridge Display Technology Limited,Sumitomo Chemical Co., Ltd.
- Current Assignee Address: GB Cambridgeshire JP Tokyo
- Agency: Marshall, Gerstein & Borun LLP
- Priority: GB0808455.0 20080509
- International Application: PCT/GB2009/000858 WO 20090331
- International Announcement: WO2009/136133 WO 20091112
- Main IPC: H01L29/08
- IPC: H01L29/08
Abstract:
A method of manufacturing an organic light emissive device comprising: depositing an organic light emissive layer over an anode and depositing a cathode over the organic light emissive layer, wherein the cathode comprises a trilayer structure formed by: depositing a first layer comprising an electron injecting material; depositing a second layer over the first layer, the second layer comprising a metallic material having a workfunction greater than 3.5 eV; and depositing a third layer over the second layer, the third layer comprising a metallic material having a workfunction greater than 3.5 eV.
Public/Granted literature
- US20110057229A1 Organic Light Emissive Device Public/Granted day:2011-03-10
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