公开(公告)号：US20230095876A1

公开(公告)日：2023-03-30

申请号：US17969363

申请日：2022-10-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Takeyoshi WATABE ,  Tomohiro KUBOTA ,  Airi UEDA ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Yuko KUBOTA

IPC: H01L51/50 ,  H01L51/00

Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

公开(公告)号：US20220077391A1

公开(公告)日：2022-03-10

申请号：US17412450

申请日：2021-08-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuharu OHSAWA ,  Satoshi SEO ,  Takeyoshi WATABE ,  Airi UEDA ,  Tomohiro KUBOTA ,  Takashi HIRAHARA

IPC: H01L51/00 ,  C07C211/61

Abstract: A light-emitting device with high emission efficiency and low driving voltage is provided. A light-emitting apparatus, an electronic device, and a lighting device with low power consumption are provided. The following organic compound is provided: the organic compound has an arylamine structure; and when the organic compound is deposited to be a film, the ordinary refractive index of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 1.50 and less than or equal to 1.75, the birefringence Δn of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 0 and less than or equal to 0.008, or the alignment order parameter of the deposited film with respect to light with a wavelength corresponding to the longest wavelength where an absorption peak appears in the absorption spectrum is greater than or equal to −0.07 and less than or equal to 0.00.

公开(公告)号：US20200098997A1

公开(公告)日：2020-03-26

申请号：US16473053

申请日：2017-12-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Satoshi SEO ,  Nozomi KOMATSU ,  Ryohei YAMAOKA ,  Harue OSAKA ,  Kunihiko SUZUKI ,  Shunsuke HOSOUMI

IPC: H01L51/00

Abstract: A highly reliable light-emitting element having high emission efficiency is provided. The light-emitting element includes a light-emitting layer including a first organic compound and a guest material. The first organic compound has a substituted or unsubstituted carbazole skeleton. In the light-emitting layer, the weight ratio of a hydrocarbon group substitution product in which at least one of hydrogen atoms in the first organic compound is substituted by a hydrocarbon group having 1 to 6 carbon atoms to the first organic compound is greater than 0 and less than or equal to 0.1.

公开(公告)号：US20190189936A1

公开(公告)日：2019-06-20

申请号：US16271967

申请日：2019-02-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi WATABE ,  Satoshi SEO ,  Satomi MITSUMORI

IPC: H01L51/00 ,  C09K11/02 ,  G06F3/041 ,  H01L51/50 ,  G09G3/3225 ,  C07F15/00 ,  C09K11/06 ,  H05B33/14 ,  G06F3/044

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0809 ,  G09G2310/0267 ,  G09G2310/0272 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/04 ,  G09G2380/02 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/008 ,  H01L51/009 ,  H01L51/0097 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/524 ,  H01L2251/5384 ,  H01L2251/552 ,  H05B33/14

Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the host material is higher than a LUMO level of the host material, and a HOMO level of the guest material is lower than a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. The difference between a singlet excitation energy level and a triplet excitation energy level of the host material is greater than 0 eV and less than or equal to 0.2 eV. The energy difference between the LUMO level and the HOMO level of the host material is larger than or equal to light emission energy of the guest material.

公开(公告)号：US20170183368A1

公开(公告)日：2017-06-29

申请号：US15386432

申请日：2016-12-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoka Hara ,  Miki KANAMOTO ,  Hideko INOUE ,  Satoshi SEO ,  Satomi MITSUMORI ,  Takeyoshi WATABE ,  Nobuharu OHSAWA

IPC: C07F15/00 ,  H01L51/00 ,  C09K11/06

CPC classification number: C07F15/0086 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/1074 ,  C09K2211/1096 ,  C09K2211/185 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/0094 ,  H01L51/5012 ,  H01L51/5016 ,  Y02P20/582

Abstract: A novel light-emitting material is provided. A novel orgnometallic complex is provided. An orgnometallic complex having a high carrier-transport property is provided. An orgnometallic complex having a deep HOMO level and/or a deep LUMO level is provided. An orgnometallic complex having a high charge-injection property is provided. Another object is to provide an organometallic complex that can exhibit yellow to blue phosphorescence. An organometallic complex that has a high carrier-transport property and exhibits green to blue phosphorescence is provided. An organometallic complex including a ligand having a structure of 5-(2-pyridinyl)-5H-benzimidazo[1,2-a]benzimidazole and a light-emitting material including the organometallic complex are provided.

公开(公告)号：US20170025630A1

公开(公告)日：2017-01-26

申请号：US15212842

申请日：2016-07-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Tatsuyoshi TAKAHASHI ,  Takeyoshi WATABE ,  Satomi MITSUMORI

IPC: H01L51/50 ,  C07F15/00 ,  C09K11/06 ,  H01L27/32

CPC classification number: H01L51/5028 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/322 ,  H01L27/323 ,  H01L27/3244 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5346 ,  H01L2251/5384 ,  H01L2251/552

Abstract: A light-emitting element with high emission efficiency. The light-emitting element includes a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than the LUMO level of the second organic compound. The HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The HOMO level of the guest material is higher than the HOMO level of the second organic compound. The energy difference between the LUMO level of the guest material and the HOMO level of the guest material is larger than the energy difference between the LUMO level of the first organic compound and the HOMO level of the second organic compound. The guest material has a function of converting triplet excitation energy into light emission. The first organic compound and the second organic compound form an exciplex.

Abstract translation: 发光效率高的发光元件。 发光元件包括第一有机化合物，第二有机化合物和客体材料。 第一有机化合物的LUMO水平低于第二有机化合物的LUMO水平。 第一有机化合物的HOMO含量低于第二有机化合物的HOMO能级。 客体材料的HOMO含量高于第二有机化合物的HOMO含量。 客体材料的LUMO能级与客体材料的HOMO能级之间的能量差大于第一有机化合物的LUMO能级与第二有机化合物的HOMO能级之间的能量差。 客体材料具有将三重态激发能转换成发光的功能。 第一有机化合物和第二有机化合物形成激元复合物。

公开(公告)号：US20160118615A1

公开(公告)日：2016-04-28

申请号：US14922636

申请日：2015-10-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Takeyoshi WATABE ,  Kunihiko SUZUKI ,  Toshiki HAMADA ,  Rina NAKAMURA ,  Hayato YAMAWAKI ,  Ayumi SATO ,  Harue OSAKA

IPC: H01L51/50

CPC classification number: H01L51/5092 ,  H01L51/0025 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5072

Abstract: To provide a novel light-emitting element or a highly reliable light-emitting element. To provide a light-emitting device, a display device, an electronic device, and a lighting device each of which can be manufactured at a low cost. To provide a light-emitting element including an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a light-emitting layer and an electron injection transport layer between the light-emitting layer and the cathode, and the amount of a halogen detected from a material forming the electron injection transport layer is less than or equal to 30 ppm.

Abstract translation: 提供新颖的发光元件或高度可靠的发光元件。 提供可以以低成本制造的发光装置，显示装置，电子装置和照明装置。 在阳极和阴极之间提供包括阳极，阴极和EL层的发光元件。 EL层包括在发光层和阴极之间的发光层和电子注入传输层，并且从形成电子注入传输层的材料检测到的卤素的量小于或等于30ppm。

公开(公告)号：US20140291642A1

公开(公告)日：2014-10-02

申请号：US14220535

申请日：2014-03-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Satoshi SEO

IPC: H01L51/50

CPC classification number: H01L51/504 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5036 ,  H01L2251/552

Abstract: Provided is a light-emitting element having a light-emitting layer which contains at least a host material and a plurality of guest materials, where the host material has a lower T1 level than that of at least one of the plurality of guest materials. The emission of the one of the plurality of guest materials exhibits a multicomponent decay curve, and the lifetime thereof is less than or equal to 15 μsec, preferably less than or equal to 10 μsec, more preferably less than or equal to 5 μsec, where the lifetime is defined as a time for the emission to decrease in intensity to 1/100 of its initial intensity.

Abstract translation: 本发明提供一种具有至少含有主体材料和多种客体材料的发光层的发光元件，其中所述主体材料具有比所述多个客体材料中的至少一个客体材料低的T1水平。 多个客体材料中的一个的发射表现出多组分衰变曲线，其寿命小于或等于15微秒，优选小于或等于10微秒，更优选小于或等于5微秒，其中 寿命被定义为发射强度降低到其初始强度的1/100的时间。

公开(公告)号：US20240206217A1

公开(公告)日：2024-06-20

申请号：US18520725

申请日：2023-11-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Nobuharu Ohsawa

IPC: H10K50/13 ,  H10K50/16

CPC classification number: H10K50/131 ,  H10K50/16 ,  H10K2101/40

Abstract: To provide a light-emitting device having high efficiency and high reliability. The light-emitting device includes a first electrode, a second electrode, and an organic compound layer; the organic compound layer is between the first electrode and the second electrode; the organic compound layer includes a first light-emitting unit, a second light-emitting unit, and an intermediate layer; the intermediate layer is between the first light-emitting unit and the second light-emitting unit; the intermediate layer includes a mixed layer containing a first organic compound and a second organic compound; the first organic compound is strongly basic; the second organic compound has an electron-transport property; and the first organic compound has a higher LUMO level than the second organic compound.

公开(公告)号：US20240065014A1

公开(公告)日：2024-02-22

申请号：US18382693

申请日：2023-10-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Takeyoshi WATABE ,  Tomohiro KUBOTA ,  Airi UEDA ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Yuko KUBOTA

IPC: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/60

CPC classification number: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/626

Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.