Invention Grant
- Patent Title: Charge transporting material and organic electroluminescence device
- Patent Title (中): 电荷输送材料和有机电致发光器件
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Application No.: US13518239Application Date: 2010-12-28
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Publication No.: US08735878B2Publication Date: 2014-05-27
- Inventor: Tetsu Kitamura , Toru Watanabe , Toshihiro Ise
- Applicant: Tetsu Kitamura , Toru Watanabe , Toshihiro Ise
- Applicant Address: IE Dublin
- Assignee: UDC Ireland Limited
- Current Assignee: UDC Ireland Limited
- Current Assignee Address: IE Dublin
- Agency: Morgan Lewis & Bockius LLP
- Priority: JP2010-007535 20100115; JP2010-116666 20100520; JP2010-247908 20101104
- International Application: PCT/JP2010/073816 WO 20101228
- International Announcement: WO2011/086861 WO 20110721
- Main IPC: H01L35/24
- IPC: H01L35/24

Abstract:
In order to provide an organic electroluminescence device with high luminous efficiency and good durability, the present invention provides a charge transporting material including a compound represented by Formula (Cz-1) wherein the content of a particular halogen-containing impurity in the charge transporting material is from 0.000% to 0.10% when the content is calculated as a proportion of the absorption intensity area of the impurity with respect to the total absorption intensity area of the charge transporting material, as measured by high-performance liquid chromatography at a measurement wavelength of 254 nm, and an organic electroluminescence device wherein the charge transporting material is included in an organic layer: wherein in Formula (Cz-1), each of R1 to R5 independently represents a particular atom or group; and each of n1 to n5 independently represents a particular integer.
Public/Granted literature
- US20120256173A1 CHARGE TRANSPORTING MATERIAL AND ORGANIC ELECTROLUMINESCENCE DEVICE Public/Granted day:2012-10-11
Information query
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