公开(公告)号：US20240423005A1

公开(公告)日：2024-12-19

申请号：US18814781

申请日：2024-08-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Takumu OKUYAMA ,  Yusuke TAKITA ,  Naoaki HASHIMOTO ,  Hiromi SEO ,  Nobuharu OHSAWA ,  Toshiki SASAKI ,  Shunpei YAMAZAKI

IPC: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

Abstract: A novel light-emitting device is provided. Alternatively, a light-emitting device with high emission efficiency is provided. Alternatively, a light-emitting device having a long lifetime is provided. Alternatively, a light-emitting device having low driving voltage is provided. A light-emitting device including an EL layer including a first layer, a second layer, a third layer, a light-emitting layer, and a fourth layer in this order from the anode side is provided. The first layer includes a first organic compound and a second organic compound. The fourth layer includes a seventh organic compound. The first organic compound exhibits an electron-accepting property with respect to the second organic compound. The HOMO level of the second organic compound is from −5.7 eV to −5.4 eV. The HOMO level of the seventh organic compound is −6.0 eV or higher.

公开(公告)号：US20240407224A1

公开(公告)日：2024-12-05

申请号：US18698928

申请日：2022-10-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji KUSUNOKI ,  Satoshi SEO ,  Shunpei YAMAZAKI

IPC: H10K59/38 ,  H10K59/12 ,  H10K59/122

Abstract: A high-resolution display device is provided. A first light-emitting device and a second light-emitting device are provided over an insulating surface. A first sidewall insulating layer is in contact with a side surface of a first pixel electrode included in the first light-emitting device, and a second sidewall insulating layer is in contact with a side surface of a second pixel electrode included in the second light-emitting device. The first light-emitting device overlaps with a first coloring layer with a first color conversion layer therebetween. The first light-emitting device and the second light-emitting device share a common electrode. A first layer included in the first light-emitting device, a second layer included in the second light-emitting device, and a material layer positioned over a top surface of an insulating layer and between the first sidewall insulating layer and the second sidewall insulating layer each contain the same light-emitting material and are separated from each other.

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.

公开(公告)号：US20240306493A1

公开(公告)日：2024-09-12

申请号：US18662138

申请日：2024-05-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Sachiko KAWAKAMI ,  Anna TADA ,  Yusuke TAKITA ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO ,  Satoshi SEO

IPC: H10K85/60 ,  C07C211/54 ,  C07C211/58 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/12 ,  H10K59/17 ,  H10K71/00 ,  H10K71/13 ,  H10K101/10 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K85/633 ,  C07C211/54 ,  C07C211/58 ,  H10K85/626 ,  H10K85/631 ,  C07C2601/16 ,  C07C2602/10 ,  H10K50/11 ,  H10K50/156 ,  H10K50/16 ,  H10K59/12 ,  H10K59/17 ,  H10K71/00 ,  H10K71/13 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2102/311

Abstract: An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.

公开(公告)号：US20240292642A1

公开(公告)日：2024-08-29

申请号：US18586676

申请日：2024-02-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Toshiki SASAKI ,  Ryohei YAMAOKA ,  Shiho NOMURA

IPC: H10K50/11 ,  H10K50/818 ,  H10K50/828

CPC classification number: H10K50/11 ,  H10K50/818 ,  H10K50/828

Abstract: Alight-emitting device with high emission efficiency is provided. Alight-emitting device with a high blue index (BI) is provided. A light-emitting device with low power consumption is provided. A light-emitting device including a first electrode and a second electrode which are a reflective electrode and a semi-transmissive and semi-reflective electrode, and an EL layer sandwiched between the first electrode and the second electrode, where the EL layer contains an emission center substance, where when the emission center substance in the EL layer includes only one kind of substance, photon energy of a peak wavelength of light emitted from the light-emitting device is designed from an average value of photon energy of light emitted by the emission center substance in a solution state and emission edge energy on a short wavelength side of an emission spectrum of the emission center substance in the solution state.

公开(公告)号：US20240215443A1

公开(公告)日：2024-06-27

申请号：US18525103

申请日：2023-11-30

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yui YOSHIYASU ,  Nobuharu OHSAWA ,  Hiromitsu KIDO ,  Masatoshi TAKABATAKE ,  Satoshi SEO

IPC: H10K85/60 ,  C07D209/86 ,  C07F7/08 ,  C09K11/06 ,  H10K85/40

CPC classification number: H10K85/6572 ,  C07D209/86 ,  C07F7/0812 ,  C09K11/06 ,  H10K85/40 ,  H10K50/11

Abstract: A highly efficient and highly reliable light-emitting device is provided. The light-emitting device includes an organic compound layer between a pair of electrodes. The organic compound layer includes a light-emitting layer, the light-emitting layer includes a first organic compound, a second organic compound, and a light-emitting substance, the first organic compound contains deuterium, and in a PL measurement of a mixed layer of the first organic compound and the second organic compound, a spectrum of an exciplex is observed at room temperature, and a spectrum of the exciplex is not observed at a temperature in a temperature range of 4 K to 80 K, inclusive.

公开(公告)号：US20240206306A1

公开(公告)日：2024-06-20

申请号：US18592944

申请日：2024-03-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taisuke KAMADA ,  Ryo HATSUMI ,  Daisuke KUBOTA ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI ,  Harue OSAKA ,  Satoshi SEO

IPC: H10K65/00 ,  H10K39/32 ,  H10K50/16 ,  H10K50/17 ,  H10K50/86 ,  H10K59/12 ,  H10K59/40 ,  H10K101/30

CPC classification number: H10K65/00 ,  H10K39/32 ,  H10K50/16 ,  H10K50/17 ,  H10K50/865 ,  H10K59/12 ,  H10K59/40 ,  H10K2101/30

Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.

公开(公告)号：US20240206209A1

公开(公告)日：2024-06-20

申请号：US18589868

申请日：2024-02-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Takeyoshi WATABE ,  Satomi MITSUMORI

IPC: H10K50/11 ,  C07D241/38 ,  C07D403/12 ,  C07D405/10 ,  C09K11/02 ,  C09K11/06 ,  H10K50/13 ,  H10K59/35 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/11 ,  C07D241/38 ,  C07D403/12 ,  C07D405/10 ,  C09K11/02 ,  C09K11/06 ,  H10K85/342 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572 ,  H10K85/6574 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1044 ,  C09K2211/1048 ,  C09K2211/1051 ,  C09K2211/1059 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  C09K2211/188 ,  H10K50/131 ,  H10K59/35 ,  H10K85/615 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90 ,  Y02P20/582

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 guest material is lower than a LUMO 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 guest material and the HOMO level of the host material is larger than or equal to energy of light emission of the guest material.

公开(公告)号：US20240206206A1

公开(公告)日：2024-06-20

申请号：US18287918

申请日：2022-04-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tsunenori SUZUKI ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/00 ,  H10K59/123 ,  H10K59/35 ,  H10K85/60

CPC classification number: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/123 ,  H10K59/35 ,  H10K59/771 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576

Abstract: A light-emitting device with a high resolution and favorable characteristics manufactured by a photolithography method is provided. The light-emitting apparatus includes first and second light-emitting devices. The first and second light-emitting devices are adjacent to each other. The first light-emitting device includes a first EL layer A and a second EL layer. The second light-emitting device includes a first EL layer B and the second EL layer. The first EL layer A and the first EL layer B are independent of each other. The second EL layer is shared by the first and second light-emitting devices. An end surface of the first EL layer A on the first EL layer B side and an end surface of the first EL layer B on the first EL layer A side face each other. The first EL layer A includes a light-emitting layer. The light-emitting layer includes a light-emitting material, first and second organic compounds. The first organic compound is an organic compound having an electron-transport property. The second organic compound is an organic compound having a hole-transport property.

公开(公告)号：US20240164134A1

公开(公告)日：2024-05-16

申请号：US18423895

申请日：2024-01-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuta KAWANO ,  Airi UEDA ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Keito TOSU ,  Harue OSAKA ,  Satoshi SEO ,  Ryo NARUKAWA ,  Shiho NOMURA

IPC: H10K50/16 ,  H10K59/00 ,  H10K59/12

CPC classification number: H10K50/16 ,  H10K59/00 ,  H10K59/12 ,  H10K85/631

Abstract: A light-emitting device with high emission efficiency is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer; the light-emitting layer includes a light-emitting material; the electron-transport layer includes an organic compound having an electron-transport property and a metal complex of an alkali metal; the ordinary refractive index of the organic compound having an electron-transport property in a peak wavelength of light emitted from the light-emitting material is greater than or equal to 1.50 and less than or equal to 1.75; and the ordinary refractive index of the metal complex of an alkali metal in the peak wavelength of the light emitted from the light-emitting material is greater than or equal to 1.45 and less than or equal to 1.70.