公开(公告)号：US20240349528A1

公开(公告)日：2024-10-17

申请号：US18261119

申请日：2022-01-13

Applicant: IDEMITSU KOSAN CO., LTD.

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

IPC: H10K50/16 ,  H10K50/13 ,  H10K85/60 ,  H10K101/30

CPC classification number: H10K50/166 ,  H10K50/13 ,  H10K50/167 ,  H10K85/636 ,  H10K2101/30

Abstract: An organic electroluminescence 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 one emitting layer, the second anode side organic layer contains at least one compound different from the compound contained in the third anode side organic layer, the third anode side organic layer has a film thickness of 20 nm or more, and a difference NM2−NM3 between 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 satisfies a relationship of a numerical formula (Numerical Formula N1) below,










N
⁢

M
2


-

N
⁢

M
3



≥


0
.
0

⁢
5


.




(

Numerical
⁢

Formula
⁢

N1

)

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,









T
1

(

H
⁢
1

)

>



T
1

(

H
⁢
2

)

.





(

Numerical
⁢

Formula
⁢

1

)

公开(公告)号：US20240138254A1

公开(公告)日：2024-04-25

申请号：US17766213

申请日：2020-09-28

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tasuku HAKETA ,  Kazuki NISHIMURA

IPC: H10K85/60

CPC classification number: H10K85/631 ,  H10K85/633 ,  H10K85/636 ,  H10K50/156

Abstract: An organic electroluminescence device containing a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer contains an emitting layer, a first layer, and a second layer, the first layer is disposed between the anode and the emitting layer, the second layer is disposed between the anode and the first layer, the first layer contains a first hole-transporting material and a second hole-transporting material, and the second layer contains an acceptor material having an affinity value in the range of 3.8 to 6.0 eV and at least one hole-transporting material.

公开(公告)号：US20240099127A1

公开(公告)日：2024-03-21

申请号：US17766214

申请日：2020-09-28

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tasuku HAKETA ,  Kazuki NISHIMURA

IPC: H10K85/60 ,  H10K50/15

CPC classification number: H10K85/633 ,  H10K50/15 ,  H10K85/622 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576

Abstract: An organic electroluminescence device having: a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer includes an emitting layer and a first layer, the first layer is disposed between the anode and the emitting layer, and the first layer contains a first hole-transporting material represented by the following formula (1) and a second hole-transporting material represented by the following formula (11):

公开(公告)号：US20230263001A1

公开(公告)日：2023-08-17

申请号：US18009235

申请日：2021-06-18

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Hiroaki TOYOSHIMA ,  Kazuki NISHIMURA ,  Satomi TASAKI

IPC: H10K50/155 ,  H10K85/60 ,  H10K85/40

CPC classification number: H10K50/155 ,  H10K85/631 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/633 ,  H10K85/622 ,  H10K85/636 ,  H10K85/40 ,  H10K2101/10

Abstract: An organic EL device includes: an anode; a cathode; a first emitting layer containing a first host material; a second emitting layer containing a second host material; and a hole transporting zone, in which all of one or more organic layers in the hole transporting zone contain a common 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 absolute value of a difference between an energy level of the hole transporting zone material HOMO(HT) and an energy level of the first host material HOMO(H1) satisfies a relationship of a numerical formula (Numerical Formula 2) below,


T1(H1)>T1(H2)  (Numerical Formula 1)



|HOMO(HT)−HOMO(H1)|

公开(公告)号：US20220380278A1

公开(公告)日：2022-12-01

申请号：US17642661

申请日：2020-09-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Yuki NAKANO

IPC: C07C15/38 ,  C07D307/91 ,  C07C15/28 ,  C07C15/30 ,  C07D333/76 ,  C07D311/82 ,  C07F7/08 ,  C07D405/10 ,  C07D407/10 ,  C07C13/72 ,  C07C211/54 ,  C07C255/51 ,  C07D487/06 ,  C07D491/22 ,  C07D491/06 ,  C07D487/16 ,  C07D495/22 ,  C07D519/00 ,  C07F5/02 ,  C07D493/04 ,  C07D495/04 ,  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 includes, as a first host material, a first compound that includes at least one group represented by a formula (11) below, the first compound being represented by a formula (1) below, the second emitting layer includes 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. L101 is a single bond or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms. Ar101 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms. mx is 0, 1, 2, 3, 4, or 5.

公开(公告)号：US20220376191A1

公开(公告)日：2022-11-24

申请号：US17642666

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, as a first host material, a first compound that has at least one group represented by a formula (11A) 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, and the first emitting layer and the second emitting layer are in direct contact with each other

公开(公告)号：US20220371974A1

公开(公告)日：2022-11-24

申请号：US17642222

申请日：2020-09-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kazuki NISHIMURA ,  Satomi TASAKI

IPC: C07C15/38 ,  C07D307/91 ,  C07C15/28 ,  C07C15/30 ,  C07D333/76 ,  C07D311/82 ,  C07D407/10 ,  C07F7/08 ,  C07D405/10 ,  C07C211/54 ,  C07D487/06 ,  C07D491/22 ,  C07D491/16 ,  C07D487/16 ,  C07D495/22 ,  C07D487/22 ,  C07D519/00 ,  C07F5/02 ,  C07D493/04 ,  C07D495/04 ,  C07D405/12 ,  C07D403/14 ,  C07D235/08 ,  C07D251/24 ,  C07F1/02 ,  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 one of formulae (2-1A) to (2-4A) below, and the first emitting layer and the second emitting layer are in direct contact with each other.

公开(公告)号：US20220310930A1

公开(公告)日：2022-09-29

申请号：US17746587

申请日：2022-05-17

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Kazuki NISHIMURA ,  Tasuku HAKETA ,  Ryoji MAEDA ,  Yuki NAKANO ,  Hiroaki TOYOSHIMA

IPC: H01L51/00

Abstract: An organic electroluminescence device includes: a first emitting layer disposed between an anode and a cathode; a second emitting layer disposed between the first emitting layer and the cathode; and an electron blocking layer disposed between the first emitting layer and the anode, in which the first emitting layer and the second emitting layer are in direct contact with each other; the first emitting layer and the electron blocking layer are in direct contact with each other; the first emitting layer includes a first compound represented by a formula (1) below; the first compound includes at least one group represented by a formula (11) below; the second emitting layer includes a second compound represented by a formula (2); the electron blocking layer includes a third compound; and the third compound satisfies a formula (M1) below.

公开(公告)号：US20220069232A1

公开(公告)日：2022-03-03

申请号：US17291200

申请日：2019-11-07

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tasuku HAKETA ,  Masatoshi SAITO ,  Yuki NAKANO ,  Satomi TASAKI ,  Kazuki NISHIMURA

IPC: H01L51/00

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 an electron barrier layer, the electron barrier layer is disposed between the anode and the emitting layer and is directly adjacent to the emitting layer, the emitting layer comprises a first compound represented by any one of the specific formulas (21), (41), and (51), and the electron barrier layer comprises a second compound which satisfies the following expression (M1): Ip(HT)≥5.67 eV  (M1) wherein in the expression (M1), Ip(HT) is the ionization potential of the second compound.