公开(公告)号：US20210083193A1

公开(公告)日：2021-03-18

申请号：US17006303

申请日：2020-08-28

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Yuki NAKANO ,  Hiroaki ITOI

IPC: H01L51/00 ,  C09K11/02

Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer disposed between the first emitting layer and the cathode, the first emitting layer containing a first host material in a form of a first compound represented by a formula (101) below, the second emitting layer containing a second host material in a form of a second compound represented by a formula (2) below, the first emitting layer and the second emitting layer being in direct contact with each other.

公开(公告)号：US20200052225A1

公开(公告)日：2020-02-13

申请号：US16485132

申请日：2018-02-13

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Ryota TAKAHASHI ,  Satomi TASAKI ,  Yuichiro KAWAMURA ,  Hidetsugu IKEDA ,  Yuki NAKANO ,  Masakazu FUNAHASHI ,  Tomoki KATO

IPC: H01L51/00 ,  C07D487/16 ,  C07D487/06 ,  C09K11/06

Abstract: Organic EL devices having excellent performance and electronic devices comprising the organic EL devices are provided. The organic EL device comprises a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises one or more layers that comprise a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound represented by formula (P) and a second compound that is not the same as the first compound. The electronic device comprises the organic EL device. wherein, π1, π2, Z, RB, RC, m, and n are as defined in the description.

公开(公告)号：US20240407185A1

公开(公告)日：2024-12-05

申请号：US18039195

申请日：2021-12-01

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tetsuya MASUDA ,  Emiko KAMBE ,  Masato NAKAMURA ,  Satomi TASAKI

IPC: H10K50/11 ,  H10K85/60 ,  H10K101/00 ,  H10K101/30 ,  H10K102/00

Abstract: An organic EL device includes a first emitting layer and a second emitting layer, in which the first emitting layer contains a first host material, the second emitting layer contains a second host material, the first emitting layer at least contains a first emitting compound that emits light having a maximum peak wavelength of 500 nm or less, the second emitting layer at least contains a second emitting compound that emits light having a maximum peak wavelength of 500 nm or less, a total of a film thickness of the first emitting layer and a film thickness of the second emitting layer is 20 nm or less, and a triplet energy of the first host material T1(H1) and a triplet energy of the second host material T1(H2) satisfy a relationship of (Numerical Formula 1): T1(H1) greater than T1(H2).

公开(公告)号：US20240334814A1

公开(公告)日：2024-10-03

申请号：US18574016

申请日：2022-06-17

Applicant: IDEMITSU KOSAN Co.,LTD.

Inventor： Tetsuya MASUDA ,  Hiroyuki IWABUCHI ,  Masato NAKAMURA ,  Yoshinao SHIRASAKI ,  Satomi TASAKI ,  Hiroaki TOYOSHIMA

IPC: H10K85/60 ,  C07B59/00 ,  H10K71/16 ,  H10K85/20 ,  H10K85/40

CPC classification number: H10K85/622 ,  C07B59/004 ,  H10K71/164 ,  H10K85/20 ,  H10K85/40 ,  H10K85/623 ,  H10K85/633 ,  H10K85/653 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K85/658 ,  C07B2200/05

Abstract: A mixed powder comprising a first compound and a second compound, wherein the first compound has the fused ring structure having the most rings and having three or more rings, in fused ring structures included therein, and the second compound has the fused ring structure having the most rings and having 5 or more rings, in fused ring structures included therein, and the fused ring structure having the most rings thereof has more rings than that of the first compound.

公开(公告)号：US20240147843A1

公开(公告)日：2024-05-02

申请号：US18261247

申请日：2022-01-13

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Tetsuya MASUDA ,  Hiroaki TOYOSHIMA ,  Masato NAKAMURA ,  Hiroaki ITOI ,  Emiko KAMBE ,  Tasuku HAKETA ,  Yusuke TAKAHASHI ,  Keitaro YAMADA ,  Takeshi IKEDA

IPC: H10K85/60

CPC classification number: H10K85/633 ,  H10K85/636 ,  H10K50/156 ,  H10K85/615 ,  H10K85/624 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6574

Abstract: An organic EL device includes an emitting region provided between a cathode and an anode, a first anode-side-organic layer, a second anode-side-organic layer, and a third anode-side-organic layer, in which the emitting region includes at least a first emitting layer, the first anode-side-organic layer is in direct contact with the second anode-side-organic layer, the second anode-side-organic layer is in direct contact with the third anode-side-organic layer, the third anode-side-organic layer has a film thickness of 20 nm or more, the second anode-side-organic layer contains at least one compound different from a compound contained in the third anode-side-organic layer, the first emitting layer is a fluorescent emitting layer, and a refractive index NM2 of a constituent material contained in the second anode-side-organic layer and a refractive index NM3 of a constituent material contained in the third anode-side-organic layer satisfy a relationship of Numerical Formula NM,


NM2>NM3  (Numerical Formula NM).

公开(公告)号：US20240130224A1

公开(公告)日：2024-04-18

申请号：US18259254

申请日：2021-12-24

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Hiroaki TOYOSHIMA ,  Kazuki NISHIMURA ,  Tetsuya MASUDA ,  Satomi TASAKI ,  Masato NAKAMURA ,  Hiroaki ITOI ,  Emiko KAMBE ,  Yusuke TAKAHASHI ,  Keitaro YAMADA ,  Takeshi IKEDA ,  Tasuku HAKETA

IPC: H10K85/60

CPC classification number: H10K85/633 ,  H10K85/60 ,  H10K85/615 ,  H10K85/626 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/658 ,  H10K50/11

Abstract: An organic electroluminescence device includes an emitting region between a cathode and an anode, a first anode side organic layer, and a second anode side organic layer. The emitting region includes at least a first emitting layer, the first anode side organic layer is in direct contact with the second anode side organic layer, the first anode side organic layer contains first and second organic materials, a content of the first organic material in the first anode side organic layer is less than 50 mass %, the second anode side organic layer contains a second hole transporting zone material, the first emitting layer is an emitting layer that emits fluorescence, and a refractive index NM1 of the constituent materials contained in the first anode side organic layer and a refractive index NM2 of the constituent material contained in the second anode side organic layer satisfy a relationship of NM1>NM2.

公开(公告)号：US20240023436A1

公开(公告)日：2024-01-18

申请号：US17918728

申请日：2021-03-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Hiroaki ITOI ,  Taro YAMAKI ,  Maiko IIDA ,  Kazuki NISHIMURA ,  Yuki NAKANO

IPC: H10K85/60 ,  C07D307/91 ,  C09K11/06 ,  C07D307/77 ,  C07C15/38

CPC classification number: H10K85/6574 ,  C07D307/91 ,  C09K11/06 ,  H10K85/615 ,  H10K50/11 ,  C07C15/38 ,  H10K85/626 ,  H10K85/622 ,  C07D307/77

Abstract: There is provided an organic electroluminescence device including: an anode; a cathode; a first emitting layer provided between the anode and the cathode and containing a first compound; and a second emitting layer provided between the first emitting layer and the cathode and containing a second compound, in which at least one of the first emitting layer or the second emitting layer contains a compound having at least one deuterium atom, at least one of the first emitting layer or the second emitting layer contains a compound having a fused ring that includes four or more rings, and the first emitting layer and the second emitting layer are in direct contact with each other.

公开(公告)号：US20230242465A1

公开(公告)日：2023-08-03

申请号：US17918737

申请日：2021-03-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yuki NAKANO ,  Satomi TASAKI ,  Kazuki NISHIMURA ,  Hiroaki ITOI

IPC: C07C13/66 ,  H10K50/11 ,  H10K85/60 ,  C07D333/76 ,  C07D307/91 ,  C07D211/54

CPC classification number: C07C13/66 ,  H10K50/11 ,  H10K85/622 ,  H10K85/626 ,  C07D333/76 ,  H10K85/6576 ,  H10K85/6574 ,  C07D307/91 ,  H10K85/6572 ,  C07D211/54 ,  C07B2200/05

Abstract: A compound represented by a formula (1) and having at least one deuterium atom is provided. In the formula (1), n is 1 to 4, L1 is a divalent group or a group represented by a formula (11) and R111 to R119 and R211 to R219 are each independently a hydrogen atom or a substituent, where the compound represented by the formula (1) does not include a group represented by —N(R906) (R907) and R906 and R907 are each independently a hydrogen atom, an alkyl group having 1 to 50 carbon atoms, or the like. In the formula (11), X13 is an oxygen atom or a sulfur atom, Y1 to Y8 are each independently CR300 or a nitrogen atom, and two of R300 are a single bond bonded with *a or other L1 and a single bond bonded with *b or other L1.

公开(公告)号：US20230127217A1

公开(公告)日：2023-04-27

申请号：US17764905

申请日：2020-12-25

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Yuki NAKANO

IPC: H01L51/00 ,  H01L51/50

Abstract: An organic electroluminescence device (1) includes an anode (3), a cathode (4), and an emitting layer disposed between the anode (3) and the cathode (4). The emitting layer includes a first emitting layer (51) and a second emitting layer (52). The first emitting layer (51) contains, as a first host material, a first compound that has at least one group represented by a formula (11) below and that is represented by a formula (1) below, where at least one of R101 to R112 is a group represented by the formula (11). The second emitting layer (52) contains a second compound represented by a formula (2) below as a second host material,

公开(公告)号：US20220416171A1

公开(公告)日：2022-12-29

申请号：US17856884

申请日：2022-07-01

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Masatoshi SAITO ,  Tetsuya MASUDA ,  Yuki NAKANO ,  Masato NAKAMURA

IPC: H01L51/00

Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer and a second emitting layer that are interposed between the anode and the cathode and are in a direct contact with each other, and a first electron transporting layer between the cathode and the first emitting layer and the second emitting layer being in a direct contact with each other. The first emitting layer contains a first compound represented by a formula (1) as a first host material, the first compound having at least one group represented by a formula (11). The second emitting layer contains a second compound represented by a formula (2) as a second host material. The first electron transporting layer contains a third compound represented by a formula (3).