公开(公告)号：US20220344598A1

公开(公告)日：2022-10-27

申请号：US17809786

申请日：2022-06-29

申请人： KYULUX, INC.

发明人： Hajime NAKANOTANI ,  Chihaya ADACHI ,  Takahiro HIGUCHI ,  Taro FURUKAWA

IPC分类号： H01L51/00 ,  H01L51/50 ,  C09K11/06

摘要： An organic electroluminescent device having an anode, a cathode, and a light emitting layer between the anode and the cathode, in which the light emitting layer contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. ES1(A), ES1(B) and ES1(C) represent a lowest, singlet excitation energy level of the first, second and third organic compound, respectively. ES1(A)>ES1(B)>ES1(C)   (A)

公开(公告)号：US11444250B2

公开(公告)日：2022-09-13

申请号：US16210422

申请日：2018-12-05

申请人： Kyulux, Inc.

发明人： Yoshitake Suzuki ,  Shuo-Hsien Cheng ,  Yu Seok Yang ,  Jorge Aguilera-Iparraguirre ,  Rafael Gomez-Bombarelli ,  Timothy D. Hirzel

IPC分类号： C07D403/10 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50

摘要： The present disclosure relates to compounds of Formula (I) as compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.

公开(公告)号：US11101433B2

公开(公告)日：2021-08-24

申请号：US15036129

申请日：2014-11-12

申请人： KYULUX, INC.

发明人： Hiroyuki Tanaka ,  Hiroki Noda ,  Katsuyuki Shizu ,  Masatsugu Taneda ,  Chihaya Adachi

IPC分类号： H01L51/00 ,  C07D403/14 ,  C09K11/06 ,  C07D403/10 ,  C09K11/02 ,  H01L51/50

摘要： A light-emitting material containing a compound represented by the general formula (1) is capable of achieving an excellent external quantum efficiency on using in an organic light-emitting device. R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 represents a substituted or unsubstituted carbazolyl group; and Ar1 to Ar3 represent a substituted or unsubstituted aromatic ring or heteroaromatic ring.

公开(公告)号：US11069860B2

公开(公告)日：2021-07-20

申请号：US16107453

申请日：2018-08-21

申请人： Kyulux, Inc.

发明人： Jorge Aguilera-Iparraguirre ,  Rafael Gomez-Bombarelli ,  Timothy D. Hirzel ,  Shuo-Hsien Cheng ,  Yoshitake Suzuki ,  Yu Seok Yang

IPC分类号： H01L51/00 ,  C07D487/04 ,  C07D491/048 ,  C09K11/06 ,  H01L51/52 ,  H01L51/50 ,  H01L51/56

摘要： The present disclosure relates to compounds of Formula (I) as compounds capable of emitting delayed fluorescence, and uses of these compounds in organic light-emitting diodes.

公开(公告)号：US20210167295A1

公开(公告)日：2021-06-03

申请号：US17046661

申请日：2019-04-04

申请人： Nanoco Technologies Ltd. ,  Kyulux, Inc.

发明人： Stuart STUBBS ,  Nathalie GRESTY ,  James HARRIS ,  Nigel PICKETT ,  Zugang LIU ,  Ayataka ENDO ,  Chris BROWN

IPC分类号： H01L51/00 ,  C09K11/08 ,  C09K11/70 ,  C09K11/06 ,  C09K11/02

摘要： Emissive layers for electroluminescent display devices are described herein. The emissive layer can include a two-dopant system having a population of quantum dots (QDs) and a population of molecules exhibiting thermally activated delayed fluorescence (TADF). In some instances, one or both of the QDs and TADF molecules can be disposed in a host matrix. In some instances, the QDs and TADF molecules can be disposed in separate host matrices. In some instances, an electroluminescent display device can include an emissive layer comprising a population of quantum dots (QDs) and a layer adjacent to the emissive layer, the adjacent layer comprising a population of molecules exhibiting thermally activated delayed fluorescence (TADF).

公开(公告)号：US20210155849A1

公开(公告)日：2021-05-27

申请号：US17046658

申请日：2019-04-04

申请人： Nanoco Technologies Ltd. ,  kyulux, Inc.

发明人： Stuart STUBBS ,  Chris BROWN

IPC分类号： C09K11/70 ,  C09K11/08 ,  C09K11/06 ,  C09K11/02 ,  H01L51/00

摘要： An emissive layer of a top-emitting (TE) printed display comprises a combination of solution-processable nanocrystal quantum dots, thermally activated delayed fluorescent molecules, and a suitable host material along with both electron and hole charge transport materials sandwiched into a microcavity between a reflective bottom electrode and a transparent or semi-transparent top electrode. The electrodes may be reflective metals and the thickness of the emissive layers and charge transport layers may be tuned according to the required resonant wavelength along with the thickness of the top semi-transparent electrode to optimize the resonant condition and maximize the light output.

公开(公告)号：US20210066613A1

公开(公告)日：2021-03-04

申请号：US17040402

申请日：2019-03-28

申请人： KYULUX, INC.

发明人： Shuo-Hsien CHENG ,  Yu Seok YANG ,  Yoshitake SUZUKI ,  Hayato KAKIZOE ,  Ayataka ENDO ,  Jorge AGUILERA-IPARRAGUIRRE

IPC分类号： H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  C07D487/04

摘要： The present disclosure relates to compounds of Formula (I), (II), or (III) as compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.

公开(公告)号：US10559757B2

公开(公告)日：2020-02-11

申请号：US15508236

申请日：2015-09-02

申请人： KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

发明人： Hirokazu Kuwabara ,  Takumi Shibata ,  Takehiro Takahashi ,  William John Potscavage, Jr. ,  Chihaya Adachi

IPC分类号： H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  C07C49/788 ,  C07C15/38 ,  C09K11/02 ,  H01L51/50

摘要： A compound represented by (Tr)n-Z is useful as a host material for delayed fluorescent materials. Tr represents a substituted or unsubstituted triphenylenyl group, and plural Tr's existing in the general formula (1) may be the same as or different from each other. Z represents a carbonyl group or a substituted or unsubstituted, n-valent aromatic hydrocarbon group. n represents an integer of 2 to 6, but when Z is a carbonyl group, n is 2.

公开(公告)号：US20190194131A1

公开(公告)日：2019-06-27

申请号：US16331374

申请日：2017-09-08

申请人： TOYOBO CO., LTD. ,  KYULUX, INC.

发明人： Masayuki YOKOYAMA ,  Kazutake HAGIYA ,  Chihaya ADACHI

IPC分类号： C07D209/86 ,  C07D401/14 ,  C07D403/10 ,  C07D413/14 ,  C07D417/14 ,  C07D495/22 ,  H01L51/50 ,  C07D403/14 ,  C07D487/16 ,  C07C13/567

CPC分类号： C07D209/86 ,  C07C13/567 ,  C07D401/14 ,  C07D403/10 ,  C07D403/14 ,  C07D413/14 ,  C07D417/14 ,  C07D471/06 ,  C07D487/04 ,  C07D487/16 ,  C07D495/22 ,  C07F9/572 ,  C09K11/06 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0067 ,  H01L51/007 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/50 ,  H01L51/5012

摘要： Using a compound that contains a structure where a carbazol-9-yl group substituted with a perfluoroalkyl group at the 2-position and the 7-position and a structural unit having a positive Hammett constant σp (but excluding an aromatic hydrocarbon group) bond to each other directly or via a π-conjugated linking group, wherein at least a part of the carbazol-9-yl group and at least a part of the structural unit having a positive Hammett constant σp and, if any, the π-conjugated linking group form a π-electron conjugated system, an organic light emitting device having a high emission efficiency can be provided.

公开(公告)号：US10032995B2

公开(公告)日：2018-07-24

申请号：US14762308

申请日：2014-01-28

申请人： HODOGAYA CHEMICAL CO., LTD. ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

发明人： Chihaya Adachi ,  Takuma Yasuda ,  Katsuyuki Shizu ,  Takehiro Takahashi ,  Kazunori Togashi

IPC分类号： H01L51/50 ,  H01L51/00 ,  C07D401/14 ,  C07D413/14 ,  C07D417/14 ,  C09K11/06 ,  C07D333/76 ,  C07D401/12 ,  C07D403/14 ,  C07D413/08 ,  C07F3/00 ,  C07F5/02 ,  C07F5/06 ,  C07F7/08 ,  C07F9/50 ,  C07F9/53 ,  C07F9/6553 ,  C07F9/6584 ,  C07D241/48 ,  C07D401/04 ,  C07D403/04 ,  C07D413/04 ,  C07D417/04 ,  C07D421/14

摘要： A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of a general formula (1) having a diazatriphenylene ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.