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：US20240300978A1

公开(公告)日：2024-09-12

申请号：US18361304

申请日：2023-07-28

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yoshinao SHIRASAKI ,  Masatoshi SAITO ,  Kei YOSHIDA ,  Tetsuya MASUDA ,  Masato NAKAMURA ,  Tomokatsu KUSHIDA

IPC: C07D519/00 ,  H10K50/11 ,  H10K50/16 ,  H10K85/60 ,  H10K101/10

CPC classification number: C07D519/00 ,  H10K85/624 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11 ,  H10K50/166 ,  H10K2101/10

Abstract: A compound represented by the following formula (A1) (X1 is O or S; two or more of Y1, Y2, and Y3 are N; and Ar1 is an aryl group including 6 to 50 ring carbon atoms, comprising a benzene ring having at least substituent Ar2 at the ortho-position; Ar2 is an aryl group; and Ar3 is a predetermined group).

公开(公告)号：US20230171977A1

公开(公告)日：2023-06-01

申请号：US17918267

申请日：2021-04-13

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Satomi TASAKI ,  Tetsuya MASUDA ,  Hiroaki TOYOSHIMA ,  Masato NAKAMURA

IPC: H10K50/12

CPC classification number: H10K50/12 ,  H10K2101/00

Abstract: An organic EL device includes a first emitting layer and a second emitting layer. The first emitting layer contains a first host material and a first dopant material. The second emitting layer contains a second host material and a second dopant material. The first host material and the second host material are different from each other. The first dopant material is a compound having a maximum peak wavelength of 500 nm or less. The second dopant material is a compound having a maximum peak wavelength of 500 nm or less. The first dopant material and the second dopant material are different from each other. 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 1),


T1(H1)>T1(H2)   (Numerical Formula 1).

公开(公告)号：US20220173335A1

公开(公告)日：2022-06-02

申请号：US17602270

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 including a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer contains one or both of the compound represented by the following formula (1A) and the compound represented by the following formula (1B) and a compound represented by any one of the specific formulas (11), (21), (31), (41), (51), (61), (71), and (81).

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：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

公开(公告)号：US20240251585A1

公开(公告)日：2024-07-25

申请号：US18288147

申请日：2022-04-26

Applicant: IDEMITSU KOSAN CO.,LTD.

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

IPC: H10K50/13 ,  H10K50/15 ,  H10K59/35 ,  H10K101/60

CPC classification number: H10K50/131 ,  H10K50/156 ,  H10K59/35 ,  H10K2101/60

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 second emitting layer containing a second host material, at least one organic layer in the hole transporting zone is a first organic layer, the first organic layer contains a hole transporting zone material, the first emitting layer is disposed close to the anode, and a triplet energy of the first host material T1(H1) and a triplet energy of the second host material T1(H2) satisfy Numerical Formula 1, and a dipole of the first host material is 0.4 D or more,


T1(H1)>T1(H2)  (Numerical Formula 1).

公开(公告)号：US20240122063A1

公开(公告)日：2024-04-11

申请号：US18262564

申请日：2022-01-25

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tetsuya MASUDA ,  Hiroaki ITOI

IPC: H10K85/60 ,  C07C15/28 ,  C07D307/77 ,  C07D307/91 ,  C07D311/78 ,  C09K11/06

CPC classification number: H10K85/615 ,  C07C15/28 ,  C07D307/77 ,  C07D307/91 ,  C07D311/78 ,  C09K11/06 ,  H10K85/626 ,  H10K85/6574 ,  H10K50/11

Abstract: A composition including a compound represented by the formula (A1) (XA1 is O or S, ZA1 is a single bond or C) and a compound represented by the formula (B1) (XB1 is O, S, N, C) (provided that the compound represented by the formula (A1) and the compound represented by the formula (B1) are different compounds).

公开(公告)号：US20230240133A1

公开(公告)日：2023-07-27

申请号：US18009315

申请日：2021-06-18

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masato NAKAMURA ,  Tetsuya MASUDA ,  Satomi TASAKI ,  Hiroaki TOYOSHIMA ,  Takeshi IKEDA ,  Kazuma MASE

IPC: H10K85/60 ,  H10K85/40

CPC classification number: H10K85/636 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/633 ,  H10K85/40 ,  H10K85/623 ,  H10K85/658 ,  H10K85/654 ,  H10K50/13

Abstract: An organic electroluminescence device includes: a first emitting layer including a first host material, a first organic material, and a first dopant material; and a second emitting layer including a second host material and a second dopant material, in which the first host material, the first organic material, and the second host material are different compounds in structure and satisfy Numerical Formula 1 and Numerical Formula 2. Numerical Formula 1: T1(H1)>T1(H3), Numerical Formula 2: T1(H2)>T1(H3) (In Numerical Formula 1 and Numerical Formula 2, T1(H1), T1(H2), T1(H3) are triplet energies of the first host material, the first organic material, and the second host material, respectively.)

公开(公告)号：US20230127629A1

公开(公告)日：2023-04-27

申请号：US17759947

申请日：2021-02-04

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kei YOSHIDA ,  Masatoshi SAITO ,  Masato NAKAMURA ,  Tetsuya MASUDA

IPC: H01L51/00 ,  C07D403/10 ,  C09K11/06 ,  C07D403/14

Abstract: An organic electroluminescent device includes a cathode, an anode, and organic layers intervening between the cathode and the anode, where the organic layers include a light emitting layer and an electron transporting layer, where the electron transporting layer contains a compound A represented by formula (1), and the light emitting layer contains a host material B represented by formula (10):