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公开(公告)号：US20190280216A1
公开(公告)日：2019-09-12
申请号：US16302459
申请日：2017-04-06
Applicant: Konica Minolta, Inc.
Inventor： Satomi KAWABE , Kunio TANI , Hiroto ITO
Abstract: Provided are an organic electroluminescent element having a long lifetime and preventing a voltage rise and a decrease in efficiency after driven for a long time, a display and a lighting device both of which include the element. The organic electroluminescent element includes a luminescent layer sandwiched between an anode and a cathode, and a plurality of organic layers including the luminescent layer. The luminescent layer contains a phosphorescent compound and host compounds A and B both of which satisfy the following equations and requirement (11). Host Compound A=X+nR1, Host Compound B=X+mR2; and (11) [HOMO Energy level of Host Compound A]−[HOMO Energy level of Host Compound B]≥0.15 eV.
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公开(公告)号：US20190040314A1
公开(公告)日：2019-02-07
申请号：US16087479
申请日：2017-03-30
Applicant: Konica Minolta, Inc.
Inventor： Hiroto ITO , Hiroshi KITA
Abstract: The objective of the present invention is to provide: a luminescent thin film which has high luminous efficiency and a long emission life; and an organic electroluminescent element which uses this luminescent thin film and has improved stability during continuous driving. A luminescent thin film according to the present invention is characterized by containing a phosphorescent metal complex and a host compound which forms an exciplex together with the phosphorescent metal complex.
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公开(公告)号：US20210008872A1
公开(公告)日：2021-01-14
申请号：US16955627
申请日：2019-02-14
Applicant: Konica Minolta, Inc.
Inventor： Akihiro KIMURA , Miyuki OKANIWA , Hiroto ITO
Abstract: The present invention addresses the problem of providing: a composition for electronic devices in which when a film is formed therefrom, the amount of residual solvents including fluorine-containing solvents within the film is reduced, the effects of residual solvents on a device are minimized, and it is thus possible to achieve high element performance; an ink for electronic devices that is suitable for wet processes and that makes it possible to achieve high liquid stability and element performance as a result of containing the composition for electronic devices; and a method for producing an electronic device. This composition for electronic devices contains a component A and a component B and is characterized in that the component A is a fluorine-containing solvent and the component B is a compound having a structure represented by general formula (1).
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