公开(公告)号：EP4361158A1

公开(公告)日：2024-05-01

申请号：EP22828032.7

申请日：2022-03-30

申请人： Kyulux, Inc.

发明人： YOSHIZAKI Makoto ,  MORIMOTO Kei ,  HWANG Songhye ,  OZAWA Hiroaki ,  KAKIZOE Hayato ,  KODAMA Yuka

IPC分类号： C07F5/02 ,  C09K11/06 ,  C07D209/86 ,  C07D519/00 ,  H01L51/50

CPC分类号： C07D519/00 ,  C07D209/86 ,  C07F5/02 ,  C09K11/06

摘要： Provided is an organic electroluminescence device in which a high luminous efficiency can be obtained even in a case where the LUMO level of a fluorescence material is lower than the LUMO level of a delayed fluorescence material. In the organic electroluminescence device, a light-emitting layer contains a first organic compound, a second organic compound that is a delayed fluorescence material, and a third organic compound that emits fluorescence, the second organic compound has the LUMO energy higher than that of the third organic compound, the largest component of light emitted from the device is fluorescence from the third organic compound, and an orientation value of the third organic compound in the light-emitting layer is -0.3 or less.

公开(公告)号：EP4410789A1

公开(公告)日：2024-08-07

申请号：EP22875707.6

申请日：2022-08-31

申请人： Kyulux, Inc.

发明人： OZAWA Hiroaki ,  MORIO Momoko ,  GOTO Aiko ,  KASHIWAZAKI Takahiro ,  MORIMOTO Kei ,  HWANG Songhye

IPC分类号： C07D405/10 ,  C09K11/06 ,  H10K50/00 ,  H10K50/15

CPC分类号： H10K50/00 ,  H10K50/15 ,  C09K11/06 ,  C07D405/10

摘要： A compound of the following formula is useful as a host material or an electron barrier material. R1 to R5 are a deuterium atom or an alkyl group, but one or two among R4 and R5 are a phenyl group that may be substituted with an alkyl group. n1 and n3 to n5 are 0 to 4, and n2 is 0 to 3.

公开(公告)号：EP4361160A1

公开(公告)日：2024-05-01

申请号：EP22828271.1

申请日：2022-06-14

申请人： Kyulux, Inc.

发明人： KASHIWAZAKI Takahiro ,  CHO Yong Joo ,  ENOMOTO Terumichi ,  FUJISAWA Kaori ,  MORIO Momoko ,  GOTO Aiko ,  MORIMOTO Kei ,  KODAMA Yuka ,  KANAHARA Kousei ,  SUEISHI Kiyomasa ,  OZAWA Hiroaki

IPC分类号： C07F5/02 ,  C09K11/06 ,  H01L51/50

CPC分类号： C09K11/06 ,  C07F5/027 ,  H10K2101/2020230201 ,  H10K85/657 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/658 ,  H10K85/636 ,  H10K50/121

摘要： A compound of the following structure has excellent luminescence characteristics. One of X1 and X2 is N and the other is B, and R1 to R26, A1, and A2 are H or substituents.

公开(公告)号：EP4102587A1

公开(公告)日：2022-12-14

申请号：EP21750170.9

申请日：2021-02-03

申请人： Kyulux, Inc.

发明人： KAKIZOE Hayato ,  OZAWA Hiroaki ,  ENDO Ayataka ,  YANG YuSeok

IPC分类号： H01L51/50 ,  C07D207/448

摘要： An organic light emitting element produced by using a light emitting composition that contains both a first compound having a PBHT value more than 0.730 and a second compound having Esi lower than that of the first compound and ΔE ST less than 0.20 eV is excellent in durability. Esi is the lowest excited singlet energy level, ΔE ST is the difference between the lowest excited singlet energy level and the lowest excited triplet energy level.

公开(公告)号：EP4434991A1

公开(公告)日：2024-09-25

申请号：EP22895570.4

申请日：2022-11-14

申请人： Kyulux, Inc.

发明人： YAMASHITA Masataka ,  SUZUKI Yoshitake ,  SHIMAMURA Naomi ,  OZAWA Hiroaki ,  HWANG Songhye ,  KANAHARA Kousei

IPC分类号： C07D491/048 ,  C09K11/06 ,  C07D519/00 ,  H10K50/00

CPC分类号： C07D491/048 ,  H10K50/00 ,  C07D519/00 ,  C09K11/06

摘要： An organic light emitting device using a compound of the following general formula has excellent light emission characteristics. R1 is a hydrogen atom, a deuterium atom or an alkyl group; R2 to R4 are donor groups, but not all are the same; X1 to X3 each are N or C(R); R is a hydrogen atom, a deuterium atom or a substituent; Ar1 and Ar2 each are an aryl group; L1 is a single bond or a linking group.