Invention Grant
- Patent Title: Organic electroluminescence element
- Patent Title (中): 有机电致发光元件
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Application No.: US12177951Application Date: 2008-07-23
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Publication No.: US07847479B2Publication Date: 2010-12-07
- Inventor: Tasuku Satou , Masaru Kinoshita , Manabu Tobise
- Applicant: Tasuku Satou , Masaru Kinoshita , Manabu Tobise
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolash & Birch, LLP
- Priority: JP2007-196677 20070727
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
An organic electroluminescence element including an organic layer including a light-emitting layer between a pair of electrodes, wherein the light-emitting layer contains at least two light-emitting materials having different Ea values and at least one host material, a concentration of a light-emitting material having a larger Ea value in the light-emitting layer gradually decreases from a cathode side toward an anode side, and a concentration of a light-emitting material having a smaller Ea value in the light-emitting layer gradually decreases from the anode side toward the cathode side.
Public/Granted literature
- US20090026936A1 ORGANIC ELECTROLUMINESCENCE ELEMENT Public/Granted day:2009-01-29
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