公开(公告)号：US20220277815A1

公开(公告)日：2022-09-01

申请号：US17637671

申请日：2020-08-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunsuke HOSOUMI ,  Shuntaro KOCHI ,  Kunihiko SUZUKI

IPC: G16C20/70 ,  H01L51/50 ,  H05B33/14 ,  G06N5/04

Abstract: A property prediction system is provided. An input portion, a processing portion, an arithmetic portion, and an output portion are included; the input portion has a function of supplying the structure of a light-emitting device or the properties of the light-emitting device; the processing portion has a function of generating a learning data set or data that is used for property prediction and a function of quantifying the molecular structure of an organic compound; the arithmetic portion has a function of performing supervised learning on the basis of the learning data set and a function of making an inference of the properties of the light-emitting device from the data on the basis of the learning result of the supervised learning; and the output portion has a function of providing the result of the inference. Thus, the properties of the light-emitting device including a layer containing an organic compound are predicted.

公开(公告)号：US20200035939A1

公开(公告)日：2020-01-30

申请号：US16595639

申请日：2019-10-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunsuke HOSOUMI ,  Takahiro ISHISONE ,  Tatsuyoshi TAKAHASHI ,  Satoshi SEO

IPC: H01L51/50

Abstract: A light-emitting element containing a fluorescent material and having high emission efficiency is provided. The light-emitting element contains the fluorescent material and a host material. The host material contains a first organic compound and a second organic compound. The first organic compound and the second organic compound can form an exciplex. The minimum value of a distance between centroids of the fluorescent material and at least one of the first organic compound and the second organic compound is 0.7 nm or more and 5 nm or less.

公开(公告)号：US20160351833A1

公开(公告)日：2016-12-01

申请号：US15164599

申请日：2016-05-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunsuke HOSOUMI ,  Tatsuyoshi TAKAHASHI ,  Takahiro ISHISONE ,  Satoshi SEO

IPC: H01L51/00

CPC classification number: H01L51/0074 ,  H01L51/0054 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/5012 ,  H01L51/5028 ,  Y02P20/582

Abstract: A light-emitting element which exhibits high emission efficiency is provided without using a rare metal as a light-emitting material. The light-emitting element including a first electrode, a second electrode, and a layer containing organic compounds between the first electrode and the second electrode is provided. The layer containing organic compounds includes a light-emitting layer at least containing a fluorescent substance. The light-emitting layer includes a fluorescent substance, a first organic compound, and a second organic compound. The combination of the first organic compound and the second organic compound forms an exciplex. The first organic compound is a substance having the first skeleton including a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton.

Abstract translation: 在不使用稀有金属作为发光材料的情况下，提供发光效率高的发光元件。 提供了包括第一电极，第二电极和在第一电极和第二电极之间包含有机化合物的层的发光元件。 含有有机化合物的层包括至少含有荧光物质的发光层。 发光层包括荧光物质，第一有机化合物和第二有机化合物。 第一有机化合物和第二有机化合物的组合形成激元复合物。 第一有机化合物是具有包含苯并呋喃并嘧啶骨架或苯并噻吩并嘧啶骨架的第一骨架的物质。

公开(公告)号：US20160268513A1

公开(公告)日：2016-09-15

申请号：US15062606

申请日：2016-03-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takahiro ISHISONE ,  Shunsuke HOSOUMI ,  Tatsuyoshi TAKAHASHI ,  Satoshi SEO

IPC: H01L51/00 ,  H01L51/50

CPC classification number: H01L51/0051 ,  H01L51/5012 ,  H01L51/5278 ,  H01L2251/5384

Abstract: A light-emitting element containing a fluorescent material and having high emission efficiency is provided. The light-emitting element contains the fluorescent material and a host material. The host material contains a first organic compound and a second organic compound. The first organic compound and the second organic compound can form an exciplex. The proportion of a delayed fluorescence component in light emitted from the exciplex is higher than or equal to 5%, and the delayed fluorescence component contains a delayed fluorescence component whose fluorescence lifetime is 10 ns or longer and 50 μs or shorter.

Abstract translation: 提供含有荧光材料并具有高发光效率的发光元件。 发光元件含有荧光材料和主体材料。 主体材料含有第一有机化合物和第二有机化合物。 第一有机化合物和第二有机化合物可以形成高分子复合物。 荧光复合物发出的光中延迟荧光成分的比例大于或等于5％，延迟荧光成分含有荧光寿命为10ns以上且50μs以下的延迟荧光成分。

公开(公告)号：US20240357845A1

公开(公告)日：2024-10-24

申请号：US18672109

申请日：2024-05-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Nobuharu OHSAWA ,  Shunsuke HOSOUMI ,  Takahiro ISHISONE

IPC: H10K50/11 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/11 ,  H10K2101/10 ,  H10K2101/30

Abstract: A light-emitting element having high emission efficiency which includes a fluorescent material as a light-emitting substance is provided. A light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a light-emitting layer. The light-emitting layer includes a host material and a guest material. The host material has a difference of more than 0 eV and less than or equal to 0.2 eV between a singlet excitation energy level and a triplet excitation energy level. The guest material is capable of emitting fluorescence. The triplet excitation energy level of the host material is higher than a triplet excitation energy level of the guest material.

公开(公告)号：US20210288280A1

公开(公告)日：2021-09-16

申请号：US17329759

申请日：2021-05-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunsuke HOSOUMI ,  Takahiro ISHISONE ,  Tatsuyoshi TAKAHASHI ,  Satoshi SEO

IPC: H01L51/50

Abstract: A light-emitting element containing a fluorescent material and having high emission efficiency is provided. The light-emitting element contains the fluorescent material and a host material. The host material contains a first organic compound and a second organic compound. The first organic compound and the second organic compound can form an exciplex. The minimum value of a distance between centroids of the fluorescent material and at least one of the first organic compound and the second organic compound is 0.7 nm or more and 5 nm or less.

公开(公告)号：US20210020859A1

公开(公告)日：2021-01-21

申请号：US16923526

申请日：2020-07-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Nobuharu OHSAWA ,  Shunsuke HOSOUMI ,  Takahiro ISHISONE

IPC: H01L51/50

Abstract: A light-emitting element having high emission efficiency which includes a fluorescent material as a light-emitting substance is provided. A light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a light-emitting layer. The light-emitting layer includes a host material and a guest material. The host material has a difference of more than 0 eV and less than or equal to 0.2 eV between a singlet excitation energy level and a triplet excitation energy level. The guest material is capable of emitting fluorescence. The triplet excitation energy level of the host material is higher than a triplet excitation energy level of the guest material.

公开(公告)号：US20190341570A1

公开(公告)日：2019-11-07

申请号：US16513869

申请日：2019-07-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Nobuharu OHSAWA ,  Shunsuke HOSOUMI ,  Takahiro ISHISONE

IPC: H01L51/50

Abstract: A light-emitting element having high emission efficiency which includes a fluorescent material as a light-emitting substance is provided. A light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a light-emitting layer. The light-emitting layer includes a host material and a guest material. The host material has a difference of more than 0 eV and less than or equal to 0.2 eV between a singlet excitation energy level and a triplet excitation energy level. The guest material is capable of emitting fluorescence. The triplet excitation energy level of the host material is higher than a triplet excitation energy level of the guest material.

公开(公告)号：US20160268534A1

公开(公告)日：2016-09-15

申请号：US15060657

申请日：2016-03-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunsuke HOSOUMI ,  Takahiro ISHISONE ,  Tatsuyoshi TAKAHASHI ,  Satoshi SEO

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5012 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L2251/5384 ,  Y02P20/582

Abstract: A light-emitting element containing a fluorescent material and having high emission efficiency is provided. The light-emitting element contains the fluorescent material and a host material. The host material contains a first organic compound and a second organic compound. The first organic compound and the second organic compound can form an exciplex. The minimum value of a distance between centroids of the fluorescent material and at least one of the first organic compound and the second organic compound is 0.7 nm or more and 5 nm or less.

Abstract translation: 提供含有荧光材料并具有高发光效率的发光元件。 发光元件含有荧光材料和主体材料。 主体材料含有第一有机化合物和第二有机化合物。 第一有机化合物和第二有机化合物可以形成高分子复合物。 荧光材料的质心与第一有机化合物和第二有机化合物中的至少一个之间的距离的最小值为0.7nm以上且5nm以下。