-
公开(公告)号：US20230422598A1
公开(公告)日：2023-12-28
申请号：US18367514
申请日：2023-09-13
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takeyoshi WATABE , Satoshi SEO , Satomi MITSUMORI
IPC: H10K85/30 , C09K11/02 , C09K11/06 , C07F15/00 , G06F3/044 , H05B33/14 , G09G3/3225 , H10K50/11 , H10K50/12
CPC classification number: H10K85/342 , C09K11/025 , C09K11/06 , C07F15/0033 , G06F3/044 , H05B33/14 , G09G3/3225 , H10K50/11 , H10K50/121 , C09K2211/1007 , C09K2211/1059 , C09K2211/185 , G09G2300/0452 , G09G2310/0267 , G09G2310/0272 , G09G2310/08 , G09G2330/021 , G06F3/0416
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：US20220013736A1
公开(公告)日：2022-01-13
申请号：US17485623
申请日：2021-09-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takeyoshi WATABE , Satoshi SEO , Satomi MITSUMORI
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：US20170338436A1
公开(公告)日：2017-11-23
申请号：US15598586
申请日：2017-05-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satomi MITSUMORI , Takeyoshi WATABE , Satoshi SEO , Yuko KUBOTA
CPC classification number: H01L51/5016 , H01L27/3206 , H01L27/3211 , H01L27/322 , H01L51/0084 , H01L51/0085 , H01L51/0086 , H01L51/0087 , H01L51/0088 , H01L51/5004 , H01L51/5056 , H01L51/5072 , H01L51/5265 , H01L51/5278 , H01L2251/5384
Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
-
公开(公告)号：US20170309687A1
公开(公告)日：2017-10-26
申请号：US15483049
申请日：2017-04-10
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takeyoshi WATABE , Satomi MITSUMORI , Nobuharu OHSAWA , Harue OSAKA , Kunihiko SUZUKI , Satoshi SEO
CPC classification number: H01L27/3213 , H01L27/322 , H01L27/323 , H01L27/3244 , H01L27/3281 , H01L51/5004 , H01L51/5016 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092
Abstract: Providing a light-emitting element emitting light in a broad emission spectrum. A combination of a first organic compound and a second organic compound forms an exciplex. The first organic compound has a function of converting triplet-excitation energy into light emission. The lowest triplet excitation level of the second organic compound is higher than or equal to the lowest triplet excitation level of the first organic compound, and the lowest triplet excitation level of the first organic compound is higher than or equal to the lowest triplet excitation level of the exciplex. Light emission from a light-emitting layer includes light emission from the first organic compound and light emission from the exciplex.
-
公开(公告)号：US20240292646A1
公开(公告)日：2024-08-29
申请号：US18647902
申请日：2024-04-26
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi SEO , Tatsuyoshi TAKAHASHI , Takeyoshi WATABE , Satomi MITSUMORI
IPC: H10K50/12 , C07F15/00 , C09K11/06 , H10K50/11 , H10K50/15 , H10K50/16 , H10K59/12 , H10K59/38 , H10K59/40 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/10 , H10K101/30 , H10K101/40
CPC classification number: H10K50/121 , C07F15/0033 , C09K11/06 , H10K50/11 , H10K50/15 , H10K50/16 , H10K59/12 , H10K59/38 , H10K59/40 , C09K2211/1007 , C09K2211/1011 , C09K2211/1059 , C09K2211/185 , H10K85/342 , H10K85/615 , H10K85/633 , H10K85/636 , H10K85/654 , H10K85/657 , H10K85/6572 , H10K85/6576 , H10K2101/10 , H10K2101/30 , H10K2101/40 , H10K2101/80 , H10K2101/90
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.
-
Patent Agency Ranking
公开(公告)号：US20210159440A1
公开(公告)日：2021-05-27
申请号：US17161982
申请日：2021-01-29
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satomi MITSUMORI , Takeyoshi WATABE , Satoshi SEO , Yuko KUBOTA
Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.
-
公开(公告)号：US20200259105A1
公开(公告)日：2020-08-13
申请号：US16859056
申请日：2020-04-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takeyoshi Watabe , Satoko SHITAGAKI , Kunihiko SUZUKI , Harue OSAKA , Satomi MITSUMORI , Satoshi SEO
Abstract: A light-emitting element with high emission efficiency and high reliability is provided. The light-emitting element includes a light-emitting layer containing a first organic compound, a second organic compound, and a guest material. The first organic compound has a nitrogen-containing six-membered heteroaromatic skeleton. In the light-emitting layer, the weight ratio of an organic compound having a nitrogen-containing five-membered heterocyclic skeleton with an NH group, a secondary amine skeleton with an NH group, or a primary amine skeleton with an NH group to the first organic compound is less than or equal to 0.03, or alternatively, the weight ratio of the organic compound having a nitrogen-containing five-membered heterocyclic skeleton with an NH group, a secondary amine skeleton with an NH group, or a primary amine skeleton with an NH group to the second organic compound is less than or equal to 0.01.
-
8.发明申请公开(公告)号：US20170271600A1
公开(公告)日：2017-09-21
申请号：US15455966
申请日：2017-03-10
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Toshiaki TSUNOI , Hideko INOUE , Takeyoshi WATABE , Satomi MITSUMORI , Nobuharu OHSAWA
CPC classification number: H01L51/0085 , C07F15/0033 , C09K11/06 , C09K2211/1007 , C09K2211/1059 , C09K2211/185 , H01L27/3244 , H01L27/3281 , H01L51/5016 , H01L2251/552 , H05B33/14 , Y02P20/582
Abstract: A novel organometallic complex is provided. An organometallic complex emitting green to blue phosphorescence is provided. An organometallic complex having a deep LUMO level and emitting green to blue phosphorescence is provided. A light-emitting element with high emission efficiency is provided. A light-emitting element emitting green to blue phosphorescence and having low drive voltage is provided. A light-emitting device with low power consumption is provided. The organometallic complex includes iridium and a ligand having a triazole skeleton. The triazole skeleton has a group including a pyridine ring or a group including a pyrimidine ring and an aryl group. One of nitrogen atoms included in the triazole skeleton is coordinated to the iridium. The aryl group is bonded to the iridium at the ortho position of the aryl group.
-
公开(公告)号：US20170092890A1
公开(公告)日：2017-03-30
申请号：US15277323
申请日：2016-09-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Takeyoshi WATABE , Satomi MITSUMORI
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 HOMO level of the guest material is higher than a HOMO level of the host material. An energy difference between the LUMO level and a HOMO level of the guest material is larger than an energy difference between the LUMO level and a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. An energy difference between the LUMO level of the host material and the HOMO level of the guest material is larger than or equal to energy of light emission of the guest material.
-
公开(公告)号：US20240397738A1
公开(公告)日：2024-11-28
申请号：US18788835
申请日：2024-07-30
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi SEO , Tatsuyoshi TAKAHASHI , Takeyoshi WATABE , Satomi MITSUMORI
IPC: H10K50/12 , C07F15/00 , C09K11/06 , H10K50/11 , H10K50/15 , H10K50/16 , H10K59/12 , H10K59/38 , H10K59/40 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/10 , H10K101/30 , H10K101/40
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.
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.025 seconds)
