公开(公告)号：US20240415013A1

公开(公告)日：2024-12-12

申请号：US18697130

申请日：2022-09-30

Applicant: IDEMITSU KOSAN CO.,LTD.

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

IPC: H10K85/60 ,  C09K11/02 ,  C09K11/06 ,  H10K50/12 ,  H10K50/15 ,  H10K101/00

Abstract: An organic EL device includes an emitting region between a cathode and an anode, a first anode side organic layer, and a second anode side organic layer, in which the emitting region includes at least a first emitting layer, the first emitting layer contains a first host material, a first additional host material, and a first luminescent compound, the first anode side organic layer contains first and second organic materials, a content of the first organic material 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 constituent materials in the first anode side organic layer and a refractive index NM2 of a constituent material in the second anode side organic layer satisfy a relationship of Numerical Formula NM, NM 1 > NM 2 . ( Numerical ⁢ Formula ⁢ NM )

公开(公告)号：US20240260300A1

公开(公告)日：2024-08-01

申请号：US18288149

申请日：2022-04-26

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Tasuku HAKETA ,  Hiroaki TOYOSHIMA

IPC: H10K50/15 ,  H10K85/60 ,  H10K101/40

CPC classification number: H10K50/156 ,  H10K85/624 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572 ,  H10K2101/40

Abstract: An organic EL device includes: an anode; a cathode; an emitting region; and a hole transporting zone, in which the emitting region includes a first emitting layer containing a first host material and a first emitting compound and a second emitting layer containing a second host material and a second emitting compound; the first emitting layer is disposed close to the anode; the hole transporting zone includes a first organic layer that is in direct contact with the first emitting layer; the first organic layer contains a hole transporting zone material; 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 a numerical formula (Numerical Formula 1) below, and an affinity value of the hole transporting zone material Af(cHT) is less than 1.47 eV,









T
1

(

H
⁢
1

)

>



T
1

(

H
⁢
2

)

.





(

Numerical
⁢

Formula
⁢

1

)

公开(公告)号：US20240122064A1

公开(公告)日：2024-04-11

申请号：US18262349

申请日：2022-01-21

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Hiroaki TOYOSHIMA ,  Kazuki NISHIMURA ,  Tetsuya MASUDA ,  Satomi TASAKI ,  Emiko KAMBE

IPC: H10K85/60

CPC classification number: H10K85/626 ,  H10K85/615 ,  H10K85/622 ,  H10K85/636 ,  H10K85/6574 ,  H10K85/658 ,  H10K50/11

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 host material and the second host material are mutually different, the first emitting layer contains at least a first emitting compound that emits light with a maximum peak wavelength of 453 nm or less, the second emitting layer contains at least a second emitting compound that emits light with a maximum peak wavelength of 500 nm or less, the first emitting compound and the second emitting compound are mutually the same or different, and the triplet energy T1(H1) of the first host material and the triplet energy T1(H2) of the second host material satisfy a relationship of a numerical formula (Numerical Formula 1) below,


T1(H1)>T1(H2)  (Numerical Formula 1).

公开(公告)号：US20240023426A1

公开(公告)日：2024-01-18

申请号：US18037432

申请日：2021-11-26

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Emiko KAMBE ,  Tetsuya MASUDA ,  Kazuki NISHIMURA

IPC: H10K85/60 ,  C09K11/02

CPC classification number: H10K85/622 ,  C09K11/02 ,  H10K85/6574 ,  H10K85/658 ,  H10K50/11 ,  H10K85/615 ,  H10K85/623 ,  H10K85/636 ,  H10K85/626

Abstract: An organic EL device includes an anode, an emitting layer of first and second emitting layers, and a cathode. The first emitting layer contains a first host material and a first emitting material. The second emitting layer contains a second host material and a second emitting material. The first and second emitting materials emit light having a maximum peak wavelength of 500 nm or less. The triplet energy of the first host material T1(H1) and the triplet energy of the second host material T1(H2) satisfy T1(H1)>T1(H2). The maximum peak wavelength λ1 and FWHM1 of a first film provided by adding the first emitting material to the first host material, and the maximum peak wavelength λ2 and FWHM2 of a second film provided by adding the second emitting material to the second host material satisfy |λ1−λ2|≤3 nm and |FWHM1−FWHM2|≤2 nm.

公开(公告)号：US20230020436A1

公开(公告)日：2023-01-19

申请号：US17283382

申请日：2019-10-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yuki NAKANO ,  Taro YAMAKI ,  Satomi TASAKI ,  Tomoki KATO

IPC: H01L51/00 ,  C07D307/77 ,  C09K11/06

Abstract: A compound represented by the following formula (1) (In the formula (1), at least one of R1 to R8 is a deuterium atom; Ar2 is a monovalent group represented by the following formula (2), (3) or (4)).

公开(公告)号：US20230019712A1

公开(公告)日：2023-01-19

申请号：US17283372

申请日：2019-10-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yuki NAKANO ,  Taro YAMAKI ,  Satomi TASAKI ,  Tomoki KATO

IPC: H01L51/00

Abstract: An organic electroluminescence device including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer includes a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by each of formulas (11), (21), (31), (41), (51), (61), (71) and (81). In the formula (1), at least one of R1 to R8 is a deuterium atom, and Ar2 is a monovalent group represented by following formula (2), (3) or (4).

公开(公告)号：US20220393113A1

公开(公告)日：2022-12-08

申请号：US17860631

申请日：2022-07-08

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Hiroaki TOYOSHIMA

IPC: H01L51/00

Abstract: An organic electroluminescence device includes two or more emitting units disposed between an anode and a cathode, and an intermediate layer, in which the intermediate layer contains a phenanthroline compound, the laminated emitting unit includes a first emitting layer containing a first host material and a second emitting layer containing a second host material, and a triplet energy T1(H1) of the first host material and a triplet energy T1(H2) of the second host material satisfy a relationship of a numerical formula (Numerical Formula 3), T1(H1)>T1(H2)  (Numerical Formula 3).

公开(公告)号：US20220348522A1

公开(公告)日：2022-11-03

申请号：US17642220

申请日：2020-09-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Ryoji MAEDA ,  Yuichiro KAWAMURA ,  Yuki NAKANO

IPC: C07C15/38 ,  C07D307/91 ,  C07D333/76 ,  C07C13/62 ,  C07D211/54 ,  C07D311/82 ,  C07C15/30 ,  C07C15/28 ,  C07D471/06 ,  C07F7/08 ,  C07D487/06 ,  C07D491/16 ,  C07D491/22 ,  C07D495/22 ,  C07F5/02 ,  C07D493/04 ,  C07D495/04 ,  C07D519/00 ,  C07D405/10 ,  C07C255/34 ,  C07D403/14 ,  C07D231/56 ,  C07D405/12 ,  C07C255/51 ,  C07D241/38 ,  C07D491/04 ,  C07D251/24 ,  C07F1/02 ,  C07D403/10 ,  H01L51/00 ,  H01L51/50

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 and the second host material are mutually different, the first emitting layer and the second emitting layer at least contains a compound that emits fluorescence having a main peak wavelength of 500 nm or less, respectively, the compound contained in the first emitting layer and that emits fluorescence having a main peak wavelength of 500 nm or less is the same as or different from the compound contained in the second emitting layer, and a triplet energy T1(H1) of the first host material and a triplet energy T1(H2) of the second host material satisfy a numerical formula (Numerical Formula 1), T1(H1)>T1(H2)  (Numerical Formula 1).

公开(公告)号：US20220165965A1

公开(公告)日：2022-05-26

申请号：US17602275

申请日：2020-04-08

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Hiroaki ITOI ,  Yuki NAKANO ,  Satomi TASAKI ,  Taro YAMAKI ,  Tetsuya MASUDA

IPC: H01L51/00

Abstract: An organic electroluminescence device containing a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains a compound represented by the following formula (1) and one or more compounds selected from the group consisting of a compound represented by the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).

公开(公告)号：US20220165964A1

公开(公告)日：2022-05-26

申请号：US17602273

申请日：2020-04-08

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Hiroaki ITOI ,  Yuki NAKANO ,  Satomi TASAKI ,  Taro YAMAKI ,  Tetsuya MASUDA

IPC: H01L51/00 ,  C07D307/77 ,  C09K11/06

Abstract: An organic electroluminescence device comprising: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises an emitting layer and a first layer, the first layer is disposed between the cathode and the emitting layer, the emitting layer comprises a compound represented by the following formula (1), and the first layer comprises a compound represented by the following formula (BE1):