公开(公告)号：US20180183011A1

公开(公告)日：2018-06-28

申请号：US15738459

申请日：2016-03-18

Applicant: Konica Minolta, Inc. ,  NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY

Inventor： Kazuhiro OIKAWA ,  Toshihiko IWASAKI ,  Takayuki CHIBA ,  Yong-Jin PU ,  Junji KIDO

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  C09K11/06

Abstract: An object of the present invention is to provide an organic thin-film laminate capable of suppressing function reduction even when an intermediate layer is formed using a wet method. The organic thin-film laminate has one or more organic functional layers, the organic thin-film laminate being characterized by being provided with: a first light-emitting layer 12 containing a first light-emitting-layer material that is soluble in a polar solvent other than a fluorinated solvent, and is insoluble in a fluorinated solvent; a second light-emitting layer 14 laminated on the first light-emitting layer 12; and one or more intermediate layers comprising a non-curable material, the intermediate layers being provided between the first light-emitting layer 12 and the second light-emitting layer 14, an intermediate layer 13, among the one or more intermediate layers, containing a conductive polymer having no polymerizable group and containing a fluorinated solvent in the range of 1-1000 mass ppm.

公开(公告)号：US20190288219A1

公开(公告)日：2019-09-19

申请号：US16349056

申请日：2017-10-17

Applicant: KONICA MINOLTA, INC.

Inventor： Kazuhiro OIKAWA ,  Akihiro KIMURA

IPC: H01L51/00 ,  C07D471/04 ,  C07D271/107 ,  C07D213/22 ,  C07D401/14 ,  C07F9/6568 ,  C07D405/14 ,  C07D487/04 ,  C07D471/14 ,  C07D495/04 ,  C07F9/6571

Abstract: Provided is an organic electroluminescent element having high efficiency, a long lifetime, and bending resistance. An organic electroluminescent element includes a light emitting layer and an electron transport layer adjacent to the light emitting layer between a positive electrode and a negative electrode. A host compound of the light emitting layer has an ionization potential deeper than that of a light emitting dopant of the light emitting layer by 0.3 eV or more. At least one organic compound contained in the electron transport layer has a molecular dipole moment of 6.0 debye or more.

公开(公告)号：US20220285623A1

公开(公告)日：2022-09-08

申请号：US17650445

申请日：2022-02-09

Applicant: Konica Minolta, Inc.

Inventor： Hideo TAKA ,  Tomoo IZUMI ,  Kazuhiro OIKAWA

IPC: H01L51/00 ,  B41M5/50 ,  B41M3/00 ,  H01L51/10 ,  H01L51/44 ,  H01L51/52

Abstract: Provided is an inkjet recording medium for an organic semiconductor device including a base material, an electrode, and ink receiving layer in this order, wherein the ink receiving layer has an ink penetration prevention area on an electrode side that prevents ink which permeates from a surface far from the electrode toward the electrode from reaching the electrode.

公开(公告)号：US20160056393A1

公开(公告)日：2016-02-25

申请号：US14782110

申请日：2014-04-01

Applicant: KONICA MINOLTA, INC.

Inventor： Kazuhiro OIKAWA ,  Hideo TAKA ,  Dai IKEMIZU

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H01L51/0072 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  H01L27/32 ,  H01L51/0003 ,  H01L51/0004 ,  H01L51/0005 ,  H01L51/0064 ,  H01L51/0067 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/0094 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5028

Abstract: One objective of the present invention is to provide a coating liquid for forming a light emitting layer, which improves quantum efficiency. Another objective of the present invention is to provide: an organic electroluminescent element which is formed by means of this coating liquid for forming a light emitting layer; a lighting device, a display device and a white electroluminescent device, each of which is provided with this organic electroluminescent element; and a method for manufacturing an organic electroluminescent element. A coating liquid for forming a light emitting layer according to the present invention is used for the purpose of forming a light emitting layer, which is one of one or more organic layers held between a positive electrode and a negative electrode, and this coating liquid for forming a light emitting layer is characterized by containing a thermally activated delayed fluorescent compound.

Abstract translation: 本发明的一个目的是提供一种用于形成发光层的涂布液，其提高了量子效率。 本发明的另一个目的是提供：通过用于形成发光层的涂布液形成的有机电致发光元件; 一个照明装置，一个显示装置和一个白色电致发光装置，每一个装有这个有机电致发光元件; 以及有机电致发光元件的制造方法。 用于形成根据本发明的发光层的涂布液用于形成保持在正极和负极之间的一个或多个有机层之一的发光层的目的，并且该涂布液用于 形成发光层的特征在于含有热活化的延迟荧光化合物。