公开(公告)号：US20240423010A1

公开(公告)日：2024-12-19

申请号：US18697067

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: H10K50/15 ,  H10K50/11 ,  H10K50/16 ,  H10K59/90 ,  H10K85/60

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, a first emitting layer of the emitting region contains a first host material, a first additional host material, and a first luminescent compound, the first anode-side-organic layer is in direct contact with the second one, the second anode-side-organic layer is in direct contact with the third one, 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 one, 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 in the third one satisfy a relationship below, NM 2 > NM 3 . ( Numerical ⁢ Formula ⁢ NM )

公开(公告)号：US20240400514A1

公开(公告)日：2024-12-05

申请号：US18790174

申请日：2024-07-31

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Satomi TASAKI ,  Masahiro KAWAMURA ,  Toshinari OGIWARA ,  Hitoshi KUMA ,  Kei YOSHIDA ,  Keiji OKINAKA

IPC: C07D209/80 ,  C07D209/82 ,  C07D209/94 ,  C07D491/048 ,  C07D491/147 ,  C09K11/06 ,  H10K50/11 ,  H10K85/60

Abstract: A compound is represented by a formula (1) below, in which k is an integer of 0 or more, m is an integer of 1 or more, n is an integer of 2 or more. L is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 ring carbon atoms, CN is a cyano group, and D1 and D2 are each independently represented by one of a formula (2), a formula (3) and formula (3x) below, D1 and D2 being optionally mutually the same or different.

公开(公告)号：US20240292750A1

公开(公告)日：2024-08-29

申请号：US18289745

申请日：2022-05-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yu KUDO ,  Tetsuya MASUDA ,  Hiroaki ITOI ,  Shintaro BAN ,  Takayasu SADO ,  Satomi TASAKI ,  Taro YAMAKI ,  Ryota TAKAHASHI ,  Takamoto MORITA

IPC: H10K85/60 ,  C09K11/06 ,  H10K50/11 ,  H10K101/00

CPC classification number: H10K85/6574 ,  C09K11/06 ,  H10K85/615 ,  H10K85/622 ,  C09K2211/1018 ,  H10K50/11 ,  H10K2101/90

Abstract: An organic electroluminescence device includes an emitting layer, in which the emitting layer includes at least one single layer containing a first host material, a second host material, and an emitting compound; the first host material and the second host material are mutually different; and a triplet energy of the first host material T1(H1), a triplet energy of the second host material T1(H2), and a triplet energy of the emitting compound T1(D) satisfy at least one of a relationship of a numerical formula (Numerical Formula 1) or a relationship of a numerical formula (Numerical Formula 2) below,


T1(D)>T1(H1)  (Numerical Formula 1)



T1(D2)>T1(H2)  (Numerical Formula 2).

公开(公告)号：US20240224791A1

公开(公告)日：2024-07-04

申请号：US18280929

申请日：2022-03-10

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Hiroaki ITOI ,  Satomi TASAKI ,  Kazuki NISHIMURA ,  Ryota TAKAHASHI ,  Taro YAMAKI ,  Yu KUDO

IPC: H10K85/60 ,  C07B59/00 ,  C09K11/02 ,  C09K11/06 ,  H10K85/20 ,  H10K85/40

CPC classification number: H10K85/622 ,  C07B59/004 ,  C09K11/02 ,  C09K11/06 ,  H10K85/20 ,  H10K85/40 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K85/658 ,  C07B2200/05

Abstract: An organic electroluminescence device includes: an anode; a cathode; and an emitting layer provided between the anode and the cathode, in which the emitting layer includes a first emitting layer and a second emitting layer, and the first emitting layer contains, as a first host material, a first compound represented by a formula (1) below,




in the formula (1): a cyclic structure A and a cyclic structure B are each independently, for instance, a cyclic structure selected from the group consisting of a substituted or unsubstituted aryl ring having 6 to 50 ring carbon atoms, and a substituted or unsubstituted heterocycle having 5 to 50 ring atoms; X1 is, for instance, an oxygen atom, a sulfur atom, NR71, and C(R72)(R73); and Y1 is, for instance, a sulfur atom, NR71A, or C(R72A)(R73A).

公开(公告)号：US20230089512A1

公开(公告)日：2023-03-23

申请号：US17642224

申请日：2020-09-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kazuki NISHIMURA ,  Satomi TASAKI

IPC: H01L51/00

Abstract: An organic electroluminescence device includes: an anode; a cathode; a first emitting layer; and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer 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, the second emitting layer contains, as a second host material, a second compound represented by a formula (2) below, the second compound has at least one deuterium atom, and the first emitting layer and the second emitting layer are in direct contact with each other.

公开(公告)号：US20230088213A1

公开(公告)日：2023-03-23

申请号：US17642219

申请日：2020-09-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Yuki NAKANO

IPC: C07C15/38 ,  C07D307/91 ,  C07D333/76 ,  C07C15/28 ,  C07C15/30 ,  C07C15/20 ,  C07D309/34 ,  C07D407/10 ,  C07F7/08 ,  C07C211/54 ,  C07D471/06 ,  C07D487/06 ,  C07D491/16 ,  C07D491/22 ,  C07D487/16 ,  C07D495/22 ,  C07D487/22 ,  C07F5/02 ,  C07D493/04 ,  C07D495/04 ,  C07D409/04 ,  H01L51/00 ,  H01L51/50 ,  C09K11/06

Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains a first compound represented by a formula (101) below as a first host material, the second emitting layer contains a second compound represented by a formula (2) below as a second host material, and the first emitting layer is in direct contact with the second emitting layer.

公开(公告)号：US20230042023A1

公开(公告)日：2023-02-09

申请号：US17285733

申请日：2019-10-16

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Taro YAMAKI ,  Hiroaki ITOI ,  Yuki NAKANO ,  Yuichiro KAWAMURA

IPC: H01L51/00

Abstract: An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.

公开(公告)号：US20230009458A1

公开(公告)日：2023-01-12

申请号：US17774064

申请日：2020-11-06

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Yuki NAKANO

IPC: H01L51/00

Abstract: An organic electroluminescence device includes an anode, a cathode, an emitting layer between the anode and the cathode, a first electron transporting layer between the cathode and the emitting layer, and a second electron transporting layer between the cathode and the first electron transporting layer. The first electron transporting layer is directly adjacent to the emitting layer, the second electron transporting layer is directly adjacent to the first electron transporting layer, the emitting layer contains a first compound represented by Formula (1) below, the first compound has at least one group represented by Formula (11) below, the first electron transporting layer contains a second compound represented by Formula (2) below, and the second electron transporting layer contains a third compound represented by Formula (3) below.

公开(公告)号：US20230006160A1

公开(公告)日：2023-01-05

申请号：US17774047

申请日：2020-11-06

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Tetsuya MASUDA ,  Kengo KISHINO ,  Kazuki NISHIMURA ,  Yuki NAKANO ,  Yuichiro KAWAMURA

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic EL display device includes an anode and a cathode and includes a blue organic EL device, a green organic EL device, and a red organic EL device. The blue organic EL device includes a first emitting layer. The green organic EL device includes a second emitting layer. The red organic EL device includes a third emitting layer. The organic EL devices include a fourth emitting layer as a common layer. The fourth emitting layer is in direct contact with each of the emitting layers). The first emitting layer contains a compound represented by a formula (1) and having at least one group represented by a formula (11). The fourth emitting layer contains a second compound represented by a formula (2).

公开(公告)号：US20220359829A1

公开(公告)日：2022-11-10

申请号：US17642223

申请日：2020-09-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Yuki NAKANO

IPC: H01L51/00

Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode in which the first emitting layer contains a first compound represented by a formula (1) below as a first host material, the first compound containing at least one group represented by a formula (11) below, the second emitting layer contains a second compound represented by a formula (2) below as a second host material, and the first emitting layer and the second emitting layer are in direct contact with each other.