公开(公告)号：US20210242419A1

公开(公告)日：2021-08-05

申请号：US15734761

申请日：2019-06-04

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masato NAKAMURA ,  Emiko KAMBE ,  Hiroaki TOYOSHIMA ,  Kazuki NISHIMURA ,  Hitoshi KUMA

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic electroluminescence device includes a first emitting unit, a first charge generating layer, a second emitting unit, a second charge generating layer, and a third emitting unit provided between an anode and a cathode in this order from the anode, in which the second charge generating layer includes an N layer close to the anode and a P layer close to the cathode, the third emitting layer contains a blue fluorescent compound, at least one of the first or second emitting layer contains a blue fluorescent compound, the third emitting unit includes a hole transporting zone between the second charge generating layer and the third emitting layer, the hole transporting zone is in contact with the second charge generating layer, and a thickness of the hole transporting zone is in a range from 5 nm to 40 nm and smaller than a thickness of the N layer.

公开(公告)号：US20210009527A1

公开(公告)日：2021-01-14

申请号：US16971260

申请日：2019-02-20

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yoshinao SHIRASAKI ,  Tetsuya MASUDA ,  Takushi SHIOMI ,  Masatoshi SAITO ,  Kei YOSHIDA ,  Masato NAKAMURA

IPC: C07D233/02 ,  C07D251/04 ,  C07C15/27 ,  H01L51/00

Abstract: A compound represented by the following formula (1), wherein X1 is O or S, and two or more of Y1, Y2 and Y3 are N, provided that the case where one or both of —Ar1—Ar2 and —Ar3—Ar4 is a p-terphenyl-3-yl group is excluded.

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：US20230126868A1

公开(公告)日：2023-04-27

申请号：US17801120

申请日：2021-02-22

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Emiko KAMBE ,  Masatoshi SAITO ,  Masato NAKAMURA

IPC: H01L51/00

Abstract: An organic electroluminescence device includes: an emitting layer between an anode and a cathode; and a first layer between the cathode and the emitting layer, in which the first layer has a thickness of 50 nm or more, the first layer contains a compound represented by a formula (1) below, and the first layer contains no metal doping material. In the formula (100), A is a substituted or unsubstituted fused aryl group having 13 to 50 ring carbon atoms, or a substituted or unsubstituted fused heterocyclic group having 14 to 50 ring atoms.

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).

公开(公告)号：US20210328156A1

公开(公告)日：2021-10-21

申请号：US17346694

申请日：2021-06-14

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Ryoji MAEDA ,  Tasuku HAKETA ,  Kazuki NISHIMURA ,  Masato NAKAMURA

IPC: H01L51/00

Abstract: A mixture contains a first compound and a second compound, in which the first compound has at least one of a first cyclic structure represented by a formula (11) below and a second cyclic structure represented by a formula (12) below, and the second compound is a compound represented by a formula (21) or a compound represented by a formula (22) below, and a total mass MT of the first and second compounds and a mass M2 of the second compound in the mixture satisfy a relationship of a numerical formula (Numerical Formula 1) below,

公开(公告)号：US20240407244A1

公开(公告)日：2024-12-05

申请号：US18700407

申请日：2022-10-04

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yukitoshi JINDE ,  Takushi SHIOMI ,  Keiichi YASUKAWA ,  Tetsuya MASUDA ,  Hiroyuki IWABUCHI ,  Masato NAKAMURA

IPC: H10K71/12 ,  C09K11/02 ,  C09K11/06 ,  H10K85/60 ,  H10K101/20

Abstract: A mixed powder for an organic electroluminescence device, including a first organic compound and a second organic compound, and being solid at ordinary temperatures and pressures, wherein the organic electroluminescence device includes a cathode, an anode, and an emitting layer arranged between the cathode and the anode, and the emitting layer includes a compound C2 having delayed fluorescence, and each of the first organic compound and the second organic compound is a compound selected from the group consisting of a fluorescent emitting compound C1, the compound C2, and a compound C3 different from both the compound C1 and the compound C2, and they have the specific combination, wherein when MOL1 [mol %] is used as the molar concentration of the first organic compound in the mixed powder and MOL2 [mol %] is used as the molar concentration of the second organic compound in the mixed powder, MOL1 [mol %] and MOL2 [mol %] satisfy the following formula (1), wherein when M1 [kg/mol] is used as the molecular weight of the first organic compound, when P1 [Pa] is used as the vapor pressure obtained by ThermoGravimetry-Differential Thermal Analysis of the first organic compound at arbitrary temperature, when M2 [kg/mol] is used as the molecular weight of the second organic compound, and when P2 [Pa] is used as the vapor pressure obtained by ThermoGravimetry-Differential Thermal Analysis of the second organic compound at arbitrary temperature, the temperature T1 [° C.] of the first organic compound in the case of P1/M11/2=0.04×{MOL1/(MOL1+MOL2)} and the temperature T2 [° C.] of the second organic compound in the case of P2/M21/2=0.04×{MOL2/(MOL1+MOL2)} satisfy the following formula (2): 0