公开(公告)号：US09040719B2

公开(公告)日：2015-05-26

申请号：US13961120

申请日：2013-08-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroko Nomura ,  Harue Osaka ,  Takahiro Ushikubo ,  Satoshi Seo

IPC: C07D209/82 ,  B32B9/00 ,  H01J1/62 ,  H01L51/00 ,  C07D209/86 ,  C07D403/12 ,  C09K11/06 ,  H05B33/14 ,  H05B33/20 ,  H01L51/50

CPC classification number: H01L51/0061 ,  C07D209/86 ,  C07D403/12 ,  C09K11/06 ,  C09K2211/1029 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/5012 ,  H01L51/5056 ,  H05B33/14 ,  H05B33/20 ,  Y10S428/917

Abstract: A carbazole derivative represented by the general formula (1) is provided. In the formula, Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; α and β independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms which form a ring; R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; and R11 to R17 and R21 to R28 independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring.

Abstract translation: 提供由通式（1）表示的咔唑衍生物。 在该式中，Ar 1表示取代或未取代的形成环的碳原子数为6〜10的芳基， α和＆bgr 独立地表示具有6-12个碳原子的取代或未取代的亚芳基，其形成环; R1表示碳原子数1〜4的烷基或取代或未取代的碳原子数6〜10的芳基，形成环。 R 11〜R 17，R 21〜R 28独立地表示氢，碳原子数1〜4的烷基或取代或未取代的碳原子数为6〜10的芳基，形成环。

公开(公告)号：US20230071734A1

公开(公告)日：2023-03-09

申请号：US17954879

申请日：2022-09-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takahiro Ushikubo

IPC: H01L51/50

Abstract: A light-emitting element whose degree of deterioration with driving time is improved and of which emission colors are easily controlled. A light-emitting emitting element having a first electrode, a second electrode, and a layer containing an organic compound located between the first electrode and the second electrode, in which the layer containing the organic compound at least has, from the second electrode side, a light-emitting layer in which a first layer, a second layer, and a third layer are stacked, and a hole-transporting layer provided in contact with the third layer; the first layer contains a first organic compound and a second organic compound; the second layer contains a third organic compound and a fourth organic compound; and the third layer contains the first organic compound and a fifth organic compound.

公开(公告)号：US11462704B2

公开(公告)日：2022-10-04

申请号：US17411660

申请日：2021-08-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takahiro Ushikubo

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32

Abstract: A light-emitting element whose degree of deterioration with driving time is improved and of which emission colors are easily controlled. A light-emitting emitting element having a first electrode, a second electrode, and a layer containing an organic compound located between the first electrode and the second electrode, in which the layer containing the organic compound at least has, from the second electrode side, a light-emitting layer in which a first layer, a second layer, and a third layer are stacked, and a hole-transporting layer provided in contact with the third layer; the first layer contains a first organic compound and a second organic compound; the second layer contains a third organic compound and a fourth organic compound; and the third layer contains the first organic compound and a fifth organic compound.

公开(公告)号：US11108009B2

公开(公告)日：2021-08-31

申请号：US16855416

申请日：2020-04-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takahiro Ushikubo

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32

Abstract: A light-emitting element whose degree of deterioration with driving time is improved and of which emission colors are easily controlled. A light-emitting emitting element having a first electrode, a second electrode, and a layer containing an organic compound located between the first electrode and the second electrode, in which the layer containing the organic compound at least has, from the second electrode side, a light-emitting layer in which a first layer, a second layer, and a third layer are stacked, and a hole-transporting layer provided in contact with the third layer; the first layer contains a first organic compound and a second organic compound; the second layer contains a third organic compound and a fourth organic compound; and the third layer contains the first organic compound and a fifth organic compound.

公开(公告)号：US10121972B2

公开(公告)日：2018-11-06

申请号：US15819231

申请日：2017-11-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kaori Ogita ,  Hiromi Nowatari ,  Harue Osaka ,  Takahiro Ushikubo ,  Satoshi Seo ,  Takako Takasu

IPC: H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  H05B33/14 ,  C07F15/00

Abstract: A composite material which includes an organic compound and an inorganic compound and has a high carrier-transport property is provided. A composite material having a good property of carrier injection into an organic compound is provided. A composite material in which light absorption due to charge-transfer interaction is unlikely to occur is provided. A composite material having a high visible-light-transmitting property is provided. A composite material including a hydrocarbon compound and an inorganic compound exhibiting an electron-accepting property with respect to the hydrocarbon compound is provided. The hydrocarbon compound has a substituent bonded to a naphthalene skeleton, a phenanthrene skeleton, or a triphenylene skeleton and has a molecular weight of 350 to 2000, and the substituent has one or more rings selected from a benzene ring, a naphthalene ring, a phenanthrene ring, and a triphenylene ring.

公开(公告)号：US10062867B2

公开(公告)日：2018-08-28

申请号：US15447695

申请日：2017-03-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiromi Seo ,  Satoko Shitagaki ,  Satoshi Seo ,  Takahiro Ushikubo ,  Toshiki Sasaki ,  Shogo Uesaka

IPC: H01L51/52 ,  H01L51/50 ,  C09K11/06 ,  H01L27/32 ,  H01L51/00

CPC classification number: H01L51/5262 ,  C09K11/06 ,  H01L27/3206 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5265 ,  H01L51/5278 ,  H01L2251/308 ,  H01L2251/5384

Abstract: A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains at least a phosphorescent compound, a first organic compound (host material) having an electron-transport property, and a second organic compound (assist material) having a hole-transport property. The light-emitting layer has a stacked-layer structure including a first light-emitting layer and a second light-emitting layer, and the first light-emitting layer contains a higher proportion of the second organic compound than the second light-emitting layer. In the light-emitting layer (the first light-emitting layer and the second light-emitting layer), a combination of the first organic compound and the second organic compound forms an exciplex.

公开(公告)号：US09935158B2

公开(公告)日：2018-04-03

申请号：US15280154

申请日：2016-09-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Toshiki Sasaki ,  Nobuharu Ohsawa ,  Takahiro Ushikubo ,  Shunpei Yamazaki

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52 ,  H01L27/15 ,  H01L33/40 ,  H01L33/44 ,  H01L51/50 ,  H01L51/44 ,  H01L51/10

CPC classification number: H01L27/322 ,  H01L27/15 ,  H01L27/3209 ,  H01L33/405 ,  H01L33/44 ,  H01L51/10 ,  H01L51/44 ,  H01L51/5016 ,  H01L51/5218 ,  H01L51/5221 ,  H01L51/5265

Abstract: A technique of manufacturing a display device with high productivity is provided. In addition, a high-definition display device with high color purity is provided. By adjusting the optical path length between an electrode having a reflective property and a light-emitting layer by the central wavelength of a wavelength range of light passing through a color filter layer, the high-definition display device with high color purity is provided without performing selective deposition of light-emitting layers. In a light-emitting element, a plurality of light-emitting layers emitting light of different colors are stacked. The closer the light-emitting layer is positioned to the electrode having a reflective property, the shorter the wavelength of light emitted from the light-emitting layer is.

公开(公告)号：US20170279065A1

公开(公告)日：2017-09-28

申请号：US15619813

申请日：2017-06-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takahiro Ushikubo

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

CPC classification number: H01L51/5056 ,  H01L27/3295 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0059 ,  H01L51/0081 ,  H01L51/5036 ,  H01L51/5072

Abstract: A light-emitting element whose degree of deterioration with driving time is improved and of which emission colors are easily controlled. A light-emitting emitting element having a first electrode, a second electrode, and a layer containing an organic compound located between the first electrode and the second electrode, in which the layer containing the organic compound at least has, from the second electrode side, a light-emitting layer in which a first layer, a second layer, and a third layer are stacked, and a hole-transporting layer provided in contact with the third layer; the first layer contains a first organic compound and a second organic compound; the second layer contains a third organic compound and a fourth organic compound; and the third layer contains the first organic compound and a fifth organic compound.

公开(公告)号：US09698365B2

公开(公告)日：2017-07-04

申请号：US15204081

申请日：2016-07-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiromi Seo ,  Satoko Shitagaki ,  Satoshi Seo ,  Takahiro Ushikubo ,  Toshiki Sasaki ,  Shogo Uesaka

IPC: H01L51/50 ,  C09K11/06 ,  H01L51/52 ,  C07F15/00 ,  H01L27/32 ,  H01L51/00

CPC classification number: H01L51/5016 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L27/3206 ,  H01L27/3209 ,  H01L51/0051 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5028 ,  H01L51/504 ,  H01L51/5265 ,  H01L2251/5376

Abstract: A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting layer is provided between a pair of electrodes. The light-emitting layer is a stack of a first light-emitting layer, which contains at least a first phosphorescent compound, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property and is provided on the anode side, and a second light-emitting layer, which contains at least a second phosphorescent compound and the first organic compound having an electron-transport property. A combination of the first organic compound and the second organic compound forms an exciplex.

公开(公告)号：US09472601B2

公开(公告)日：2016-10-18

申请号：US14683695

申请日：2015-04-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Toshiki Sasaki ,  Nobuharu Ohsawa ,  Takahiro Ushikubo ,  Shunpei Yamazaki

IPC: H01L29/18 ,  H01L21/00 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/322 ,  H01L51/504 ,  H01L51/5215 ,  H01L51/5218 ,  H01L51/5221 ,  H01L51/5234 ,  H01L51/5265 ,  H01L51/5278 ,  H01L2251/558

Abstract: A technique of manufacturing a display device with high productivity is provided. In addition, a high-definition display device with high color purity is provided. By adjusting the optical path length between an electrode having a reflective property and a light-emitting layer by the central wavelength of a wavelength range of light passing through a color filter layer, the high-definition display device with high color purity is provided without performing selective deposition of light-emitting layers. In a light-emitting element, a plurality of light-emitting layers emitting light of different colors are stacked. The closer the light-emitting layer is to the electrode having a reflective property, the longer the wavelength of light emitted from the light-emitting layer is.