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公开(公告)号：US20240122064A1
公开(公告)日：2024-04-11
申请号：US18262349
申请日：2022-01-21
IPC分类号： H10K85/60
CPC分类号： H10K85/626 , H10K85/615 , H10K85/622 , H10K85/636 , H10K85/6574 , H10K85/658 , H10K50/11
摘要： 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 host material and the second host material are mutually different, the first emitting layer contains at least a first emitting compound that emits light with a maximum peak wavelength of 453 nm or less, the second emitting layer contains at least a second emitting compound that emits light with a maximum peak wavelength of 500 nm or less, the first emitting compound and the second emitting compound are mutually the same or different, and the triplet energy T1(H1) of the first host material and the triplet energy T1(H2) of the second host material satisfy a relationship of a numerical formula (Numerical Formula 1) below,
T1(H1)>T1(H2) (Numerical Formula 1).-
2.发明公开公开(公告)号：US20240023426A1
公开(公告)日：2024-01-18
申请号：US18037432
申请日：2021-11-26
发明人： Satomi TASAKI , Emiko KAMBE , Tetsuya MASUDA , Kazuki NISHIMURA
CPC分类号： H10K85/622 , C09K11/02 , H10K85/6574 , H10K85/658 , H10K50/11 , H10K85/615 , H10K85/623 , H10K85/636 , H10K85/626
摘要： An organic EL device includes an anode, an emitting layer of first and second emitting layers, and a cathode. The first emitting layer contains a first host material and a first emitting material. The second emitting layer contains a second host material and a second emitting material. The first and second emitting materials emit light having a maximum peak wavelength of 500 nm or less. The triplet energy of the first host material T1(H1) and the triplet energy of the second host material T1(H2) satisfy T1(H1)>T1(H2). The maximum peak wavelength λ1 and FWHM1 of a first film provided by adding the first emitting material to the first host material, and the maximum peak wavelength λ2 and FWHM2 of a second film provided by adding the second emitting material to the second host material satisfy |λ1−λ2|≤3 nm and |FWHM1−FWHM2|≤2 nm.
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3.发明公开公开(公告)号：US20240349528A1
公开(公告)日：2024-10-17
申请号：US18261119
申请日：2022-01-13
发明人： Masato NAKAMURA , Emiko KAMBE , Kazuki NISHIMURA , Yusuke TAKAHASHI , Tasuku HAKETA , Satomi TASAKI , Tetsuya MASUDA , Keitaro YAMADA
IPC分类号： H10K50/16 , H10K50/13 , H10K85/60 , H10K101/30
CPC分类号： H10K50/166 , H10K50/13 , H10K50/167 , H10K85/636 , H10K2101/30
摘要： 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：US20230123637A1
公开(公告)日：2023-04-20
申请号：US17886342
申请日：2022-08-11
发明人： Masato NAKAMURA , Emiko KAMBE
摘要： An organic EL device includes: an anode; a cathode; an anode side emitting unit; a cathode side emitting unit; a charge generating unit; a first organic layer having a thickness of 40 nm or less; and a second organic layer, in which the anode side emitting unit includes a first emitting layer which is provided close to the anode, a difference between an ionization potential Ip(H1) of a first host material in the first emitting layer and an ionization potential Ip(EBL) of a first organic material in the first organic layer satisfies a relationship of a numerical formula (Numerical Formula A1) below, Ip(H1)−Ip(EBL)≤0.4 eV (Numerical Formula A1).
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公开(公告)号：US20210242419A1
公开(公告)日：2021-08-05
申请号：US15734761
申请日：2019-06-04
摘要： 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.
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6.发明公开公开(公告)号：US20240251585A1
公开(公告)日：2024-07-25
申请号：US18288147
申请日：2022-04-26
发明人： Tetsuya MASUDA , Satomi TASAKI , Hiroaki TOYOSHIMA , Masato NAKAMURA , Kazuki NISHIMURA , Hiroaki ITOI , Emiko KAMBE
IPC分类号： H10K50/13 , H10K50/15 , H10K59/35 , H10K101/60
CPC分类号： H10K50/131 , H10K50/156 , H10K59/35 , H10K2101/60
摘要： 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：US20220416208A1
公开(公告)日：2022-12-29
申请号：US17620171
申请日：2020-06-17
发明人： Emiko KAMBE , Shota SAWANO , Masato NAKAMURA , Masatoshi SAITO
摘要： An organic-EL-display device includes a blue-emitting-organic-EL-device and a red-emitting-organic-EL-device as pixels, in which each of the blue-emitting-organic and the red-emitting-organic-EL-device includes a light-reflection layer, transparent electrode, hole transporting zone, emitting layer, electron transporting zone and semitransmissive electrode in this order, the blue-emitting-organic-EL-device has a blue-emitting layer containing a fluorescent-compound FLB, the red-emitting-organic-EL-device has a red-emitting layer containing a delayed fluorescent compound DFR, the hole transporting zone is provided at a constant film-thickness in a shared manner across the blue-emitting and red-emitting organic EL devices, the red-emitting-organic-EL-device has a resonator structure whose order of interference is first-order between the light reflection layer and the semitransmissive electrode, a film-thickness of the red-emitting layer is less than 50 nm, and a sum of film-thicknesses of the transparent electrode and hole transporting zone in the blue-emitting and red-emitting organic EL devices is less than 40 nm.
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公开(公告)号：US20210013439A1
公开(公告)日：2021-01-14
申请号：US16759788
申请日：2018-11-01
发明人： Takayasu SADO , Tetsuya MASUDA , Yoshiaki TAKAHASHI , Emiko KAMBE
摘要： 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).
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公开(公告)号：US20200091435A1
公开(公告)日：2020-03-19
申请号：US16496937
申请日：2018-03-23
发明人： Tetsuya MASUDA , Emiko KAMBE , Yoshiaki TAKAHASHI
IPC分类号： H01L51/00
摘要： 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).
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公开(公告)号：US20240130223A1
公开(公告)日：2024-04-18
申请号：US18259179
申请日：2021-12-24
发明人： Hiroaki TOYOSHIMA , Kazuki NISHIMURA , Emiko KAMBE , Masato NAKAMURA , Tetsuya MASUDA , Yusuke TAKAHASHI
IPC分类号： H10K85/60
CPC分类号： H10K85/633 , H10K85/60 , H10K50/11
摘要： An organic EL device includes: an emitting layer including a first emitting layer and a second emitting layer; and a hole transporting zone including at least two organic compound layers, in which a first organic compound layer of the hole transporting zone includes a first organic material and a second organic material that are mutually different, a content of the first organic material in the first organic compound layer is less than 10 mass %, the first emitting layer includes a first host material and a first emitting compound, the second emitting layer includes a second host material and a second emitting compound, 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)>T1(H2) (Numerical Formula 1).
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