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1. 发明申请

US20150325796A1 ORGANIC ELECTROLUMINESCENT DEVICE 审中-公开
标题翻译：有机电致发光器件
公开(公告)号：US20150325796A1
公开(公告)日：2015-11-12
申请号：US14652067
申请日：2013-11-21
申请人： NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD. , PIONEER CORPORATION , TOHOKU PIONEER CORPORATION
发明人： Masashi TADA , Takahiro KAI , Katsuhide NOGUCHI , Yasuhiro TAKAHASHI , Yuhki TERAO , Taishi TSUJI , Yusuke NAKAJIMA , Toshinao YUKI
IPC分类号： H01L51/00 , H01L51/50 , H01L51/52 , C09K11/06
CPC分类号： H01L51/0072 , C07D405/14 , C07D409/14 , C07D487/04 , C09K11/06 , C09K2211/1029 , C09K2211/185 , H01L51/0067 , H01L51/0068 , H01L51/0073 , H01L51/0074 , H01L51/0085 , H01L51/5016 , H01L51/504 , H01L51/5278 , H01L2251/5384
摘要： Provided is a practically useful organic EL element having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic EL element has a light-emitting layer and any other organic layer between an anode and a cathode opposite to each other. The light-emitting layer contains at least two host materials and at least one light-emitting dopant. At least one of the host materials is a host material selected from compounds each having one or two indolocarbazole skeletons, and at least one of the other host materials is a host material selected from carbazole compounds each substituted with a dibenzofuran or a dibenzothiophene.
摘要翻译：提供了一种实用有用的有机EL元件，其具有高效率和高驱动稳定性，同时能够以低电压驱动。有机EL元件具有发光层和彼此相对的阳极和阴极之间的任何其它有机层。发光层含有至少两种主体材料和至少一种发光掺杂剂。主体材料中的至少一种是选自具有一个或两个吲哚咔唑骨架的化合物的主体材料，并且至少一种其它主体材料是选自二苯并呋喃或二苯并噻吩取代的咔唑化合物的主体材料。

2. 发明申请

US20220085316A1 LIGHT EMITTING DEVICE 有权
公开(公告)号：US20220085316A1
公开(公告)日：2022-03-17
申请号：US17418709
申请日：2019-12-26
申请人： PIONEER CORPORATION
发明人： Akira HIRASAWA , Yuhki TERAO
IPC分类号： H01L51/50 , H01L51/56
摘要： The first region (RG1) contains a first organic material and a metal compound (a compound containing a metal element). The second region (RG2) contains the first organic material and the metal compound. The average intensity of the SIMS profile of the metal element in the second region (RG2) can be lower than the average intensity of the SIMS profile of the metal element in the first region (RG1). Specifically, the average intensity of the SIMS profile of the metal element in the second region (RG2) can be lower than 10%, preferably lower than 1.0%, of the average intensity of the SIMS profile of the metal element in the first region (RG1).

3. 发明申请

US20180130969A1 LIGHT EMITTING ELEMENT AND METHOD OF MANUFACTURING LIGHT EMITTING ELEMENT 审中-公开
公开(公告)号：US20180130969A1
公开(公告)日：2018-05-10
申请号：US15862502
申请日：2018-01-04
申请人： PIONEER CORPORATION
发明人： Yuhki TERAO
IPC分类号： H01L51/50 , H01L51/56 , H01L51/52
CPC分类号： H01L51/5092 , H01L51/5076 , H01L51/5203 , H01L51/56
摘要： A second electrode (130) is superimposed on a first electrode (110). An organic layer (120) is positioned between the first electrode (110) and the second electrode (130). Furthermore, the organic layer (120) includes a light emitting layer (123). Furthermore, the organic layer (120) includes an alkali-containing layer (which is an electron transporting layer (125) in an example in the present drawing, and is hereinafter described as the electron transporting layer (125)) between the light emitting layer (123) and the second electrode (130). The electron transporting layer (125) includes an alkali metal. In the electron transporting layer (125), a content of the alkali metal as an elemental substance is greater than the content of a compound of the alkali metal.

4. 发明公开

US20240188321A1 LIGHT EMITTING DEVICE 审中-公开
公开(公告)号：US20240188321A1
公开(公告)日：2024-06-06
申请号：US18440029
申请日：2024-02-13
申请人： PIONEER CORPORATION
发明人： Akira HIRASAWA , Yuhki TERAO
IPC分类号： H10K50/17 , H10K50/15 , H10K71/00 , H10K102/00
CPC分类号： H10K50/17 , H10K50/156 , H10K71/00 , H10K2102/00 , H10K2102/351
摘要： A method of manufacturing a light emitting device includes forming a first electrode over a first surface of a substrate, forming an organic layer over the first electrode, the organic layer including a first layer, and forming a second electrode over the organic layer. The forming the organic layer includes heating the first layer. The first layer includes a first organic material and a compound comprising a metal element. A concentration of the compound in the first layer is lower at a position away from the first electrode than at a position near the first electrode.

5. 发明申请

US20160322593A1 LIGHT EMITTING ELEMENT AND METHOD OF MANUFACTURING LIGHT EMITTING ELEMENT 有权
标题翻译：发光元件和制造发光元件的方法
公开(公告)号：US20160322593A1
公开(公告)日：2016-11-03
申请号：US15108257
申请日：2013-12-27
申请人： PIONEER CORPORATION
发明人： Yuhki TERAO
IPC分类号： H01L51/50 , H01L51/52 , H01L51/56
CPC分类号： H01L51/5092 , H01L51/5076 , H01L51/5203 , H01L51/56
摘要： A second electrode (130) is superimposed on a first electrode (110). An organic layer (120) is positioned between the first electrode (110) and the second electrode (130). Furthermore, the organic layer (120) includes a light emitting layer (123). Furthermore, the organic layer (120) includes an alkali-containing layer (which is an electron transporting layer (125) in an example in the present drawing, and is hereinafter described as the electron transporting layer (125)) between the light emitting layer (123) and the second electrode (130). The electron transporting layer (125) includes an alkali metal. In the electron transporting layer (125), a content of the alkali metal as an elemental substance is greater than the content of a compound of the alkali metal.
摘要翻译：第二电极（130）叠加在第一电极（110）上。有机层（120）位于第一电极（110）和第二电极（130）之间。此外，有机层（120）包括发光层（123）。此外，有机层（120）在发光层（120）之间包含含碱层（在本实施例中为电子输送层（125），下文称为电子传输层）（123）和第二电极（130）。电子传输层（125）包括碱金属。在电子传输层（125）中，碱金属作为元素的含量大于碱金属化合物的含量。

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