公开(公告)号：US20240244856A1

公开(公告)日：2024-07-18

申请号：US18281298

申请日：2022-03-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kengo KISHINO ,  Satomi TASAKI ,  Kazuki NISHIMURA ,  Yoshiaki TAKAHASHI

IPC: H10K50/11 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K85/342 ,  H10K85/626 ,  H10K85/633 ,  H10K85/6574 ,  H10K85/658 ,  C09K2211/185 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/90

Abstract: An organic EL device includes an anode, a cathode, and an emitting layer disposed between the anode and the cathode, in which the emitting layer includes a first emitting layer and a second emitting layer, the first emitting layer contains a first host material and a first luminescent compound, the second emitting layer contains a second host material and a second luminescent compound, the first host material and the second host material are mutually different, the first luminescent compound and the second luminescent compound are mutually the same or different, 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, and a diffusion coefficient D1 of the triplet energy of the first host material T1(H1) calculated according to a diffusion equation is 3.0×10−9 (cm2/s) or more,









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1

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Numerical
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公开(公告)号：US20190051835A1

公开(公告)日：2019-02-14

申请号：US16077966

申请日：2017-02-13

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Ryota TAKAHASHI ,  Tomoki KATO ,  Hirokatsu ITO ,  Masahiro KAWAMURA ,  Masakazu FUNAHASHI ,  Hiroyuki SAITO ,  Yuichiro KAWAMURA ,  Yoshiaki TAKAHASHI ,  Tetsuya MASUDA ,  Hitoshi KUMA

IPC: H01L51/00 ,  C07D251/24 ,  C09K11/06 ,  C07C211/61

Abstract: The compound represented by formula (1): wherein A, B, R1, and R2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

公开(公告)号：US20160211466A1

公开(公告)日：2016-07-21

申请号：US14908031

申请日：2014-10-22

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Toshinari OGIWARA ,  Satomi TASAKI ,  Masahiro KAWAMURA ,  Keiji OKINAKA ,  Yoshiaki TAKAHASHI

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C07D209/86 ,  C07D235/08 ,  C07D307/91 ,  C07D333/76 ,  C07D403/14 ,  C07D405/14 ,  C07D487/14 ,  C07D493/04 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  C09K2211/1088 ,  C09K2211/1092 ,  H01L51/0051 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0067 ,  H01L51/0073 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5056 ,  H01L51/5064 ,  H01L51/5072

Abstract: An organic electroluminescence device includes: an anode; an emitting layer; and a cathode, the emitting layer containing a first material and a second material represented by a formula (21) below. The first material has a singlet energy larger than a singlet energy of the second material.

Abstract translation: 有机电致发光器件包括：阳极; 发光层; 和阴极，所述发光层含有第一材料和由下式（21）表示的第二材料。 第一材料具有大于第二材料的单重态能量的单重态能量。

公开(公告)号：US20240306490A1

公开(公告)日：2024-09-12

申请号：US18645413

申请日：2024-04-25

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Ryota TAKAHASHI ,  Tomoki KATO ,  Hirokatsu ITO ,  Masahiro KAWAMURA ,  Masakazu FUNAHASHI ,  Hiroyuki SAITO ,  Yuichiro KAWAMURA ,  Yoshiaki TAKAHASHI ,  Tetsuya MASUDA ,  Hitoshi KUMA

IPC: H10K85/60 ,  C07C211/61 ,  C07D209/86 ,  C07D213/16 ,  C07D213/22 ,  C07D231/56 ,  C07D235/18 ,  C07D237/08 ,  C07D239/26 ,  C07D239/74 ,  C07D241/12 ,  C07D251/24 ,  C07D307/92 ,  C07D333/74 ,  C07D333/76 ,  C07D471/04 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/165 ,  H10K50/18 ,  H10K71/00 ,  H10K71/16 ,  H10K101/00 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K85/624 ,  C07C211/61 ,  C07D209/86 ,  C07D213/16 ,  C07D213/22 ,  C07D231/56 ,  C07D235/18 ,  C07D237/08 ,  C07D239/26 ,  C07D239/74 ,  C07D241/12 ,  C07D251/24 ,  C07D307/92 ,  C07D333/74 ,  C07D333/76 ,  C07D471/04 ,  C09K11/06 ,  H10K85/623 ,  H10K85/633 ,  H10K85/654 ,  C07C2603/18 ,  C07C2603/52 ,  C07C2603/94 ,  C07C2603/97 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/156 ,  H10K50/165 ,  H10K50/166 ,  H10K50/18 ,  H10K71/00 ,  H10K71/164 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2102/351

Abstract: Compounds of formulae (2-7) or (2-9) are provided:




Also provided are organic electroluminescence (EL) devices containing the compounds having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

公开(公告)号：US20220278283A1

公开(公告)日：2022-09-01

申请号：US17733306

申请日：2022-04-29

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Ryota TAKAHASHI ,  Tomoki KATO ,  Hirokatsu ITO ,  Masahiro KAWAMURA ,  Masakazu FUNAHASHI ,  Hiroyuki SAITO ,  Yuichiro KAWAMURA ,  Yoshiaki TAKAHASHI ,  Tetsuya MASUDA ,  Hitoshi KUMA

IPC: H01L51/00 ,  C07C211/61 ,  C07D251/24 ,  C09K11/06 ,  C07D239/26 ,  C07D239/74 ,  C07D213/16 ,  C07D241/12 ,  C07D333/76 ,  C07D307/92 ,  C07D231/56 ,  C07D333/74 ,  C07D213/22 ,  C07D237/08 ,  C07D209/86 ,  C07D471/04 ,  C07D235/18

Abstract: The compound represented by formula (1): wherein A, B, R1, and R2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

公开(公告)号：US20170244044A1

公开(公告)日：2017-08-24

申请号：US15415063

申请日：2017-01-25

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Takeshi IKEDA ,  Tetsuya MASUDA ,  Yoshiaki TAKAHASHI

IPC: H01L51/00

CPC classification number: H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/5016 ,  H01L51/5072

Abstract: The present invention provides an organic electroluminescence device including a cathode, an anode, and an organic thin film layer which is formed of one layer or plural layers at least containing a light emitting layer and which is sandwiched between the cathode and an anode, the device further includes an electron transporting layer between the light emitting layer and the cathode, wherein the electron transporting layer contains at least a specific compound (1) and a specific compound (2), and the compound (1) and the compound (2) satisfy the expression (A): Electron mobility of compound (1)>Electron mobility of compound (2)>10−7 cm2/Vs. The organic electroluminescence device has a high light emission efficiency and has a more prolonged lifetime. The present invention also provides an electronic device provided with the organic EL device.

公开(公告)号：US20210013439A1

公开(公告)日：2021-01-14

申请号：US16759788

申请日：2018-11-01

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takayasu SADO ,  Tetsuya MASUDA ,  Yoshiaki TAKAHASHI ,  Emiko KAMBE

IPC: H01L51/50 ,  H01L51/00

Abstract: A top emission organic EL device includes an anode, hole transporting zone, emitting layer, electron transporting zone, and cathode in this order. The hole transporting zone includes: a first layer interposed between the anode and the emitting layer; and a second layer interposed between the first layer and the emitting layer. The first layer contains a first compound and the second layer contains a second compound. A film thickness of the first layer and the second layer satisfies a formula (1) and (2), respectively. A hole mobility μH1 of the first compound satisfies a formula (3) and a hole mobility μH2 of the second compound satisfies a formula (4), 100 nm≤d1≤300 nm  (1) 1 nm≤d2≤20 nm  (2) 1.0×10−4 [cm2/Vs]≤μH1≤1.0×10−1 [cm2/Vs]  (3) 1.0×10−10 [cm2/Vs]≤μH2≤1.0×10−6 [cm2/Vs]  (4).

公开(公告)号：US20200091435A1

公开(公告)日：2020-03-19

申请号：US16496937

申请日：2018-03-23

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tetsuya MASUDA ,  Emiko KAMBE ,  Yoshiaki TAKAHASHI

IPC: H01L51/00

Abstract: An organic electroluminescence device, comprising an anode, an organic layer, an emitting layer, and a cathode in this order, wherein the organic layer comprises a compound represented by the following formula (20), and the emitting layer comprises a compound represented by the following formula (1).