公开(公告)号：US20160372688A1

公开(公告)日：2016-12-22

申请号：US15181605

申请日：2016-06-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Takeyoshi WATABE ,  Hideko INOUE ,  Yui YAMADA ,  Satomi MITSUMORI ,  Tatsuyoshi TAKAHASHI ,  Tomoka HARA

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  H01L51/50 ,  C07F15/00

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/5012 ,  H01L51/5016 ,  H01L2251/5346 ,  H01L2251/5384 ,  H01L2251/552

Abstract: Provided is 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 that of the second organic compound, and the HOMO level of the first organic compound is lower than that of the second organic compound. The LUMO level of a guest material is higher than that of the first organic compound, and the HOMO level of the guest material is lower than that 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.

Abstract translation: 具有发光效率高的发光元件。 发光元件包括第一有机化合物，第二有机化合物和客体材料。 第一有机化合物的LUMO含量低于第二有机化合物，第一有机化合物的HOMO含量低于第二有机化合物。 客体材料的LUMO含量高于第一有机化合物，客体材料的HOMO含量低于第二有机化合物。 客体材料具有将三重态激发能转换成发光的功能。 第一有机化合物和第二有机化合物形成激元复合物。

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：US20160336517A1

公开(公告)日：2016-11-17

申请号：US15152232

申请日：2016-05-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya Hirose ,  Harue OSAKA ,  Takeyoshi WATABE ,  Satomi MITSUMORI ,  Yuko KUBOTA ,  Satoshi SEO

IPC: H01L51/00 ,  C09K11/06 ,  C07D491/048

CPC classification number: H01L51/0071 ,  C07D491/048 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/1248 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016

Abstract: Provided is a novel substance that can be used in an element capable of emitting phosphorescence, a novel substance that contributes to high emission efficiency, or a novel substance that contributes to light emission with high color purity. A light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a substance including a carbazole skeleton. The substance is bonded to a substituted or unsubstituted first arylene group through a nitrogen atom included in the carbazole skeleton. The first arylene group is bonded to a substituted or unsubstituted benzofuropyridyl group or a substituted or unsubstituted benzothienopyridyl group. The first arylene group includes 1 to 5 substituted or unsubstituted second arylene groups which are bonded to one another. The EL layer may further include a layer including an emission center substance, specifically an iridium compound.

Abstract translation: 提供了可用于能够发射磷光的元素，有助于高发光效率的新物质或有助于高色纯度的发光的新型物质的新型物质。 发光元件包括一对电极和一对电极之间的EL层。 EL层包括含有咔唑骨架的物质。 该物质通过包含在咔唑骨架中的氮原子与取代或未取代的第一亚芳基结合。 第一亚芳基与取代或未取代的苯并呋喃基或取代或未取代的苯并噻吩并吡啶基结合。 第一亚芳基包括彼此结合的1至5个取代或未取代的第二亚芳基。 EL层还可以包括包含发射中心物质，特别是铱化合物的层。

公开(公告)号：US20160308136A1

公开(公告)日：2016-10-20

申请号：US15198244

申请日：2016-06-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kaori OGITA ,  Hiromi NOWATARI ,  Harue OSAKA ,  Takahiro USHIKUBO ,  Satoshi SEO ,  Takako TAKASU

IPC: H01L51/00

CPC classification number: H01L51/0052 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1092 ,  H01L51/0058 ,  H01L51/0072 ,  H01L51/0085 ,  H05B33/14

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.

Abstract translation: 提供了包含有机化合物和无机化合物并具有高载流子传输性能的复合材料。 提供具有良好载体注入有机化合物性质的复合材料。 提供了由于电荷转移相互作用而导致的光吸收不可能发生的复合材料。 提供具有高可见光透射特性的复合材料。 提供了包含相对于烃化合物显示电子接受性的烃化合物和无机化合物的复合材料。 烃化合物具有与萘骨架，菲骨架或三亚苯骨架结合的取代基，分子量为350〜2000，该取代基具有一个以上选自苯环，萘环，菲 环和三亚苯环。

公开(公告)号：US20160293867A1

公开(公告)日：2016-10-06

申请号：US15184197

申请日：2016-06-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko INOUE ,  Masakazu EGAWA ,  Satoshi SEO

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C07F15/0046 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1022 ,  C09K2211/1048 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/3211 ,  H01L27/3244 ,  H01L51/008 ,  H01L51/0087 ,  H01L51/009 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5203

Abstract: It is an object of the present invention to provide an organometallic complex that can emit phosphorescence. In the following general formula (G1), X represents —O— or —N(R10)—. R1 to R9 each represent any of hydrogen, an alkyl group or a cycloalkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms, an acyloxy group having 1 to 6 carbon atoms, a halogen group, a haloalkyl group, and an aryl group having 6 to 12 carbon atoms. In addition, R10 represents any of an alkyl group or a cycloalkyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, and a heteroaryl group having 4 to 10 carbon atoms. Moreover, M represents an element belonging to Group 9 or 10.

公开(公告)号：US20160293865A1

公开(公告)日：2016-10-06

申请号：US15092906

申请日：2016-04-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko INOUE ,  Takahiro ISHISONE ,  Nobuharu OHSAWA ,  Satoshi SEO ,  Takao HAMADA

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/5016 ,  H05B33/14

Abstract: A novel phosphorescent organometallic iridium complex is provided in which a coordination position of a ligand with respect to a metal can be controlled in synthesis. A novel phosphorescent organometallic iridium complex is provided which can keep high quantum efficiency and can emit phosphorescence in the blue to green wavelength region. A phosphorescent organometallic iridium complex which includes a structure represented by General Formula (G1) and whose ligand is a 4H-1,2,4-triazole compound which has an unsubstituted phenyl group at the 3-position, a substituted or unsubstituted phenyl group at the 4-position, and a phenyl group at the 5-position. In the phenyl group at the 5-position, an alkyl group is bonded to at least one of the ortho-positions, and the other of the ortho-positions, the meta-positions, and the para-position are substituted or unsubstituted.

公开(公告)号：US20160268536A1

公开(公告)日：2016-09-15

申请号：US15162675

申请日：2016-05-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Nobuharu OHSAWA ,  Yusuke NONAKA ,  Takahiro ISHISONE ,  Satoshi SEO ,  Takuya KAWATA

IPC: H01L51/50

CPC classification number: H01L51/5044 ,  H01L51/0051 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5376 ,  H01L2251/5384 ,  H01L2251/558

Abstract: An object of one embodiment of the present invention is to provide a multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance, a separation layer containing a substance having a hole-transport property and a substance having an electron-transport property, and a second light-emitting layer containing two kinds of organic compounds that form an exciplex and a substance that can convert triplet excitation energy into luminescence. Note that a light-emitting element in which light emitted from the first light-emitting layer has an emission spectrum peak on the shorter wavelength side than an emission spectrum peak of the second light-emitting layer is more effective.

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：US20160260930A1

公开(公告)日：2016-09-08

申请号：US15155134

申请日：2016-05-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Toshiki SASAKI ,  Nobuharu OHSAWA

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5265 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/322 ,  H01L27/323 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/504 ,  H01L51/5044 ,  H01L51/5215 ,  H01L51/5218 ,  H01L51/5221 ,  H01L51/5237 ,  H01L51/56 ,  H01L2251/301

Abstract: A novel light-emitting device is provided. A novel light-emitting device with high emission efficiency, low power consumption, and small viewing angle dependence of chromaticity is provided. The light-emitting device includes at least one light-emitting element and one optical element. A spectrum of light emitted from the light-emitting element through the optical element in a range of greater than 0° and less than or equal to 70° with respect to a normal vector of the light-emitting element has a first local maximum value in a wavelength range of greater than or equal to 400 nm and less than 480 nm and a second local maximum value located on a longer wavelength side than the first local maximum value. The intensity ratio of the second local maximum value to the first local maximum value is less than or equal to 15%.

公开(公告)号：US20160233437A1

公开(公告)日：2016-08-11

申请号：US15014799

申请日：2016-02-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroki Suzuki ,  Satoshi SEO ,  Sachiko KAWAKAMI ,  Tsunenori SUZUKI

IPC: H01L51/00 ,  C09K11/06 ,  C09K11/02

CPC classification number: H01L51/0072 ,  C07D209/86 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1029 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/5012 ,  H01L51/5028

Abstract: Provided is a light-emitting element which has high emission efficiency and a long lifetime and is driven at low voltage. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes a compound which gives a first peak at a m/z of around 266.10 in a mass spectrum.

Abstract translation: 提供一种发光效率高，寿命长，低电压驱动的发光元件。 发光元件包括一对电极之间的EL层。 EL层包括在质谱中以大约266.10的m / z给出第一峰的化合物。