公开(公告)号：US20230276647A1

公开(公告)日：2023-08-31

申请号：US18005981

申请日：2021-07-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuta KAWANO ,  Airi UEDA ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/15 ,  H10K50/858 ,  H10K85/60 ,  H10K85/30

CPC classification number: H10K50/156 ,  H10K50/858 ,  H10K85/633 ,  H10K85/636 ,  H10K85/657 ,  H10K85/6576 ,  H10K85/6572 ,  H10K85/654 ,  H10K85/342 ,  H10K2101/40

Abstract: A light-emitting device with high emission efficiency is provided. A light-emitting device with a low driving voltage is provided. The light-emitting device includes a first electrode, a first layer over the first electrode, a second layer over the first layer, a light-emitting layer over the second layer, and a second electrode over the light-emitting layer. The first layer includes a first organic compound, and the second layer includes a second organic compound. The proportion of carbon atoms forming bonds by the sp3 hybrid orbitals to the total number of carbon atoms in the first organic compound is higher than or equal to 23 percent and lower than or equal to 55 percent. The second organic compound contains fluorine.

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：US20230027613A1

公开(公告)日：2023-01-26

申请号：US17893355

申请日：2022-08-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya YAMAGUCHI ,  Hideko YOSHIZUMI ,  Hiromitsu KIDO ,  Airi UEDA ,  Satoshi SEO

IPC: H01L51/00 ,  C07D491/048

Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.

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：US20190229278A1

公开(公告)日：2019-07-25

申请号：US16249209

申请日：2019-01-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya YAMAGUCHI ,  Hideko YOSHIZUMI ,  Hiromitsu KIDO ,  Airi UEDA ,  Satoshi SEO

IPC: H01L51/00 ,  C07D491/048

Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.

公开(公告)号：US20250160107A1

公开(公告)日：2025-05-15

申请号：US19020156

申请日：2025-01-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiromi SEO ,  Takeyoshi WATABE ,  Airi UEDA ,  Yuta KAWANO ,  Nobuharu OHSAWA ,  Hiromitsu KIDO ,  Satoshi SEO

IPC: H10K50/11 ,  H10K30/20 ,  H10K50/15 ,  H10K59/12 ,  H10K85/60 ,  H10K101/30 ,  H10K101/40

Abstract: An organic semiconductor device with low driving voltage is provided. The organic semiconductor device includes a layer containing an organic compound between a pair of electrodes. The layer containing an organic compound includes a hole-transport region. The hole-transport region includes a first layer and a second layer. The first layer is positioned between the anode and the second layer. When a potential gradient of a surface potential of an evaporated film is set as GSP (mV/nm), a value obtained by subtracting GSP of an organic compound in the second layer from GSP of an organic compound in the first layer is less than or equal to 20 (mV/nm).

公开(公告)号：US20230337453A1

公开(公告)日：2023-10-19

申请号：US18008868

申请日：2021-06-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Yuta KAWANO ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/13 ,  H10K50/858 ,  H10K59/121

CPC classification number: H10K50/13 ,  H10K50/858 ,  H10K59/1213 ,  H10K2102/3026

Abstract: A novel optical functional device that is highly convenient, useful, or reliable is provided. A light-emitting device includes a first electrode, a second electrode, and an EL layer. The first electrode has a first transmittance; the second electrode overlaps with the first electrode. The second electrode has a second transmittance higher than the first transmittance. The EL layer is interposed between the first electrode and the second electrode and includes a first region, a second region, and a third region. The first region is interposed between the second region and the third region. The second region is interposed between the first electrode and the first region and has a first refractive index. The third region is interposed between the first region and the second electrode and has a second refractive index. The second refractive index is lower than the first refractive index. The EL layer includes a first unit, a second unit, and an intermediate layer. The intermediate layer is interposed between the first unit and the second unit and has a function of supplying a hole to one of the first unit and the second unit and supplying an electron to the other.

公开(公告)号：US20230320130A1

公开(公告)日：2023-10-05

申请号：US18017520

申请日：2021-07-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Hiromitsu KIDO ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/858 ,  H10K50/15 ,  C07C211/61 ,  C09K11/06

CPC classification number: H10K50/858 ,  H10K50/156 ,  C07C211/61 ,  C09K11/06 ,  H10K2102/351

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a function of emitting light, a first electrode, a second electrode, and a unit. The light has the maximum peak at a wavelength (lambda). The second electrode includes a region overlapping with the first electrode. The unit includes a region positioned between the first electrode and the second electrode. The unit includes a first layer, a second layer, and a third layer. The first layer includes a region positioned between the second layer and the third layer. The first layer contains a light-emitting material. The second layer includes a fourth layer and a fifth layer. The fifth layer includes a region positioned between the fourth layer and the first layer. The fourth layer contains a first organic compound. The first organic compound has a first refractive index with respect to light having the wavelength (lambda). The fifth layer is in contact with the fourth layer. The fifth layer contains a second organic compound. The second organic compound has a second refractive index with respect to light having the wavelength (lambda). The second refractive index is lower than the first refractive index.

公开(公告)号：US20230292544A1

公开(公告)日：2023-09-14

申请号：US18016717

申请日：2021-07-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: H10K50/858 ,  H10K85/30 ,  H10K85/60 ,  C09K11/06 ,  H10K59/35

CPC classification number: H10K50/858 ,  C09K11/06 ,  H10K59/35 ,  H10K85/342 ,  H10K85/654 ,  H10K85/6572 ,  C09K2211/1029 ,  C09K2211/185 ,  H10K50/166

Abstract: Provided is an inexpensive light-emitting device with high emission efficiency. Provided is a light-emitting device including an anode, a cathode, an EL layer positioned between the anode and the cathode; the EL layer includes a hole-transport region, a light-emitting layer, and an electron-transport region; the hole-transport region is positioned between the anode and the light-emitting layer; the electron-transport region is positioned between the cathode and the light-emitting layer; the hole-transport region contains any one of a sulfonic acid compound, a fluorine compound, and a metal oxide; the electron-transport region contains an organic compound having an electron-transport property; and an ordinary refractive index of the organic compound having an electron-transport property with respect to light with a wavelength greater than or equal to 455 nm and less than or equal to 465 nm is higher than or equal to 1.50 and lower than or equal to 1.75.

公开(公告)号：US20230225149A1

公开(公告)日：2023-07-13

申请号：US18008626

申请日：2021-06-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/17 ,  H10K85/60

CPC classification number: H10K50/17 ,  H10K85/631 ,  H10K2101/30

Abstract: A composite material with a low refractive index that can be used for a light-emitting device, a light-receiving device, a light-emitting and light-receiving device, and the like is provided. The composite material includes a first organic compound and a second organic compound, the proportion of carbon atoms forming bonds by the sp3 hybrid orbitals in the total number of carbon atoms of the first organic compound is greater than or equal to 23% and less than or equal to 55%, and the second organic compound contains fluorine. Alternatively, an optical device including an anode, a cathode, and a first layer, in which the composite material is included in the first layer, is provided.