公开(公告)号：US08475938B2

公开(公告)日：2013-07-02

申请号：US12934970

申请日：2009-04-07

申请人： Noriko Yasukawa ,  Rie Katakura ,  Hideo Taka

发明人： Noriko Yasukawa ,  Rie Katakura ,  Hideo Taka

IPC分类号： H01L51/54 ,  C09K11/00

CPC分类号： H01L51/0072 ,  C08F12/26 ,  C08F12/32 ,  C08F12/34 ,  C08F212/14 ,  C08F212/32 ,  C08F212/34 ,  C09D125/18 ,  H01L51/004 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/5016 ,  H01L51/5048

摘要： Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound.In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.

摘要翻译： 公开了具有高外部量子效率和长寿命的有机EL器件元件。 还公开了各自使用有机EL器件元件的照明器件和显示器件。 有机EL元件包括介于阳极和阴极之间的包括发光层和至少一个空穴传输层的多个有机化合物层，并且包含在发光层中的磷光发光化合物发光。 有机EL器件的特征在于，至少一个空穴传输层含有两种以上由通式（1）表示的可聚合化合物或两种或更多种具有衍生自化合物的结构单元的聚合物化合物。 在式（1）中，L 1表示二价键合基​​团，Ar 1〜Ar 4表示芳基，条件是Ar 1〜Ar 4中的至少一个表示作为取代基的聚合性基团。

公开(公告)号：US20120199186A1

公开(公告)日：2012-08-09

申请号：US13395517

申请日：2010-09-08

申请人： Yasushi Okubo ,  Noriko Yasukawa ,  Hiroaki Itoh ,  Takamune Hattori

发明人： Yasushi Okubo ,  Noriko Yasukawa ,  Hiroaki Itoh ,  Takamune Hattori

IPC分类号： H01L31/06 ,  H01L51/42

CPC分类号： H01L51/4253 ,  B82Y10/00 ,  H01L27/302 ,  H01L51/0036 ,  H01L51/0039 ,  H01L51/0043 ,  H01L51/0047 ,  H01L2251/552 ,  Y02E10/549

摘要： A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1): 0.4 eV≧LUMO(n1)−LUMO(n2)≧0.1 eV . . . (1)

摘要翻译： 串联型有机光电转换元件具有至少第一电极，第二电极和多个体积异质结层，每个包含p型有机半导体材料和n型有机半导体材料。 串联型有机光电转换元件和太阳能电池的特征在于，当本体异质结层的吸收波长使得第二体异质结层吸收比第一本体异质结层更长的波长时，LUMO能级 第一体异质结层中的n型半导体的膜的膜厚（LUMO（n1））和第二本体异质结层中的n型半导体膜的LUMO能级（LUMO（n2））满足以下 方程（1）：0.4eV≥LUMO（n1）-LUMO（n2）≥0.1eV。 。 。 （1）

公开(公告)号：US20090236974A1

公开(公告)日：2009-09-24

申请号：US11911186

申请日：2006-04-06

申请人： Junko Tamaru ,  Hiroshi Kita ,  Eisaku Katoh ,  Noriko Yasukawa

发明人： Junko Tamaru ,  Hiroshi Kita ,  Eisaku Katoh ,  Noriko Yasukawa

IPC分类号： H01J1/62

CPC分类号： C09K11/06 ,  C09K11/025 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1037 ,  C09K2211/104 ,  C09K2211/1044 ,  C09K2211/1048 ,  C09K2211/1051 ,  C09K2211/1055 ,  C09K2211/1059 ,  C09K2211/107 ,  C09K2211/1074 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5036 ,  H01L2251/552 ,  H05B33/14 ,  H05B33/20 ,  Y10S428/917

摘要： Disclosed is an organic electroluminescent (EL) device having high emission luminance and high emission efficiency. Particularly disclosed are a blue-light emitting organic EL device, which is high in emission luminance, color purity, emission efficiency and durability, a display and an illuminating device each employing the organic EL device. The organic El device is characterized in that it comprises a light emission layer containing two or more kinds of host compounds and at least one dopant, wherein at least one of the two or more kinds of host compounds has an excited triplet energy of not less than 2.7 eV, and the dopant is a phosphorescent compound.

摘要翻译： 公开了具有高发光亮度和高发光效率的有机电致发光（EL）器件。 特别公开的是发光亮度高，色纯度高，发光效率高，耐久性好的蓝光发光有机EL元件，采用有机EL元件的显示器和照明装置。 有机EL器件的特征在于它包括含有两种或更多种宿主化合物和至少一种掺杂剂的发光层，其中两种或更多种宿主化合物中的至少一种具有不小于 2.7eV，掺杂剂是磷光化合物。

公开(公告)号：US20090091253A1

公开(公告)日：2009-04-09

申请号：US12282809

申请日：2007-03-13

申请人： Noriko Yasukawa ,  Shuichi Sugita ,  Hiroshi Kita ,  Eisaku Katoh ,  Yoshiyuki Suzuri ,  Shinya Otsu ,  Aki Tsuji

发明人： Noriko Yasukawa ,  Shuichi Sugita ,  Hiroshi Kita ,  Eisaku Katoh ,  Yoshiyuki Suzuri ,  Shinya Otsu ,  Aki Tsuji

IPC分类号： H01J1/62

CPC分类号： H01L51/0085 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1037 ,  C09K2211/1044 ,  C09K2211/1048 ,  C09K2211/1051 ,  C09K2211/1059 ,  C09K2211/1074 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  H01L51/0037 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/008 ,  H01L51/0081 ,  H01L51/009 ,  H01L51/0094 ,  H01L51/5016 ,  H01L51/5036 ,  H05B33/14 ,  H05B33/20

摘要： The first object of the present invention is to provide a blue phosphorescent light-emitting organic electroluminescent (EL) device driven at low voltage, and a display and illuminating device each using such an organic EL device. The second object of the present invention is to provide an organic EL device having long life, and an illuminating device and display each using such an organic EL device. Each organic EL device comprises an electrode and at least one organic layer on a substrate, and at least one of the organic layers is a light-emitting layer containing a host compound and a phosphorescent compound. In order to accomplish the first object, the host compound has an HOMO of from −7.20 to −5.42 eV and an LUMO of from −2.30 to −0.50 eV, and the phosphorescent compound is represented by the general formula (1). In order to accomplish the second object, the host compound is an electron-transporting host compound having an excited triplet energy T1 of not less than 2.7 eV, and the phosphorescent compound has an HOMO of from −5.15 to −3.50 eV and an LUMO of from −1.25 to +1.00 eV.

摘要翻译： 本发明的第一个目的是提供一种以低电压驱动的蓝色磷光发光有机电致发光（EL）器件，以及各自使用这种有机EL器件的显示和照明装置。 本发明的第二个目的是提供一种使用寿命长的有机EL器件，以及使用这种有机EL器件的照明器件和显示器。 每个有机EL器件包括电极和在衬底上的至少一个有机层，并且至少一个有机层是含有主体化合物和磷光化合物的发光层。 为了实现第一个目的，主体化合物的HOMO为〜20.20〜-5.42eV，LUMO为-2.30〜-0.50eV，磷光发光性化合物由通式（1）表示。 为了实现第二个目的，主体化合物是具有不低于2.7eV的激发三重态能量T1的电子传输性主体化合物，并且磷光化合物的HOMO为-5.15〜-3.50eV，LOMO为 从-1.25到+1.00 eV。

公开(公告)号：US20110017988A1

公开(公告)日：2011-01-27

申请号：US12934970

申请日：2009-04-07

申请人： Noriko Yasukawa ,  Rie Katakura ,  Hideo Taka

发明人： Noriko Yasukawa ,  Rie Katakura ,  Hideo Taka

IPC分类号： H01L51/50

CPC分类号： H01L51/0072 ,  C08F12/26 ,  C08F12/32 ,  C08F12/34 ,  C08F212/14 ,  C08F212/32 ,  C08F212/34 ,  C09D125/18 ,  H01L51/004 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/5016 ,  H01L51/5048

摘要： Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound.In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.

摘要翻译： 公开了具有高外部量子效率和长寿命的有机EL器件元件。 还公开了各自使用有机EL器件元件的照明器件和显示器件。 有机EL元件包括介于阳极和阴极之间的包括发光层和至少一个空穴传输层的多个有机化合物层，并且包含在发光层中的磷光发光化合物发光。 有机EL器件的特征在于，至少一个空穴传输层含有两种以上由通式（1）表示的可聚合化合物或两种或更多种具有衍生自化合物的结构单元的聚合物化合物。 在式（1）中，L 1表示二价键合基​​团，Ar 1〜Ar 4表示芳基，条件是Ar 1〜Ar 4中的至少一个表示作为取代基的聚合性基团。