Invention Grant
- Patent Title: Phosphorescent organic light emitting devices
- Patent Title (中): 磷光有机发光器件
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Application No.: US10698233Application Date: 2003-10-31
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Publication No.: US07674531B2Publication Date: 2010-03-09
- Inventor: Chihaya Adachi , Marc A. Baldo , Stephen R. Forrest
- Applicant: Chihaya Adachi , Marc A. Baldo , Stephen R. Forrest
- Applicant Address: US CA Los Angeles US NJ Princeton
- Assignee: The University of Southern California,The Trustees of Princeton University
- Current Assignee: The University of Southern California,The Trustees of Princeton University
- Current Assignee Address: US CA Los Angeles US NJ Princeton
- Agency: Kenyon & Kenyon LLP
- Main IPC: H01L51/54
- IPC: H01L51/54 ; H05B33/14
Abstract:
The present invention relates to an organic light emitting device structure having an organic light emitting device (OLED) over a substrate, where the OLED has, for example, an anode, a hole transporting layer (HTL), a first electron transporting layer (ETL) that is doped with a phosphorescent material, a second electron transporting layer (ETL), and a cathode. The OLEDs of the present invention are directed, in particular, to devices that include an emissive layer comprised of an electron transporting host material having a triplet excited state energy level that is higher than the emissive triplet excited state energy level of the phosphorescent dopant material.
Public/Granted literature
- US20040100189A1 Phosphorescent organic light emitting devices Public/Granted day:2004-05-27
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