公开(公告)号：US20090121626A1

公开(公告)日：2009-05-14

申请号：US12335747

申请日：2008-12-16

申请人： Hiroko YAMAZAKI ,  Atsushi TOKUDA ,  Tetsuo TSUTSUI

发明人： Hiroko YAMAZAKI ,  Atsushi TOKUDA ,  Tetsuo TSUTSUI

IPC分类号： H01J1/63

CPC分类号： H01L51/5016 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0062 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0077 ,  H01L51/0079 ,  H01L51/008 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0094 ,  H01L51/5048 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/508 ,  H01L51/5206 ,  H01L51/5234 ,  H01L2251/552 ,  Y10S428/917

摘要： A triplet light emitting device which has high efficiency and improved stability and which can be fabricated by a simpler process is provided by simplifying the device structure and avoiding use of an unstable material. In a multilayer device structure using no hole blocking layer conventionally used in a triplet light emitting device, that is, a device structure in which on a substrate, there are formed an anode, a hole transporting layer constituted by a hole transporting material, an electron transporting and light emitting layer constituted by an electron transporting material and a dopant capable of triplet light emission, and a cathode, which are laminated in the stated order, the combination of the hole transporting material and the electron transporting material and the combination of the electron transporting material and the dopant material are optimized.

摘要翻译： 通过简化器件结构并避免使用不稳定的材料，提供了具有高效率和改进的稳定性并且可以通过更简单的工艺制造的三重态发光器件。 在三重态发光器件中常规使用的不使用空穴阻挡层的多层器件结构中，即在衬底上形成阳极的器件结构，由空穴传输材料构成的空穴传输层，电子 由电子传输材料和能够三重发光的掺杂剂构成的传输和发光层和阴极，按照所述顺序层叠空穴传输材料和电子传输材料的组合以及电子的组合 运输材料和掺杂剂材料被优化。

公开(公告)号：US20100237342A1

公开(公告)日：2010-09-23

申请号：US12793735

申请日：2010-06-04

申请人： Hiroko YAMAZAKI ,  Atsushi TOKUDA ,  Tetsuo TSUTSUI

发明人： Hiroko YAMAZAKI ,  Atsushi TOKUDA ,  Tetsuo TSUTSUI

IPC分类号： H01L51/54

CPC分类号： H01L51/5016 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0062 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0077 ,  H01L51/0079 ,  H01L51/008 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0094 ,  H01L51/5048 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/508 ,  H01L51/5206 ,  H01L51/5234 ,  H01L2251/552 ,  Y10S428/917

摘要： A triplet light emitting device which has high efficiency and improved stability and which can be fabricated by a simpler process is provided by simplifying the device structure and avoiding use of an unstable material. In a multilayer device structure using no hole blocking layer conventionally used in a triplet light emitting device, that is, a device structure in which on a substrate, there are formed an anode, a hole transporting layer constituted by a hole transporting material, an electron transporting and light emitting layer constituted by an electron transporting material and a dopant capable of triplet light emission, and a cathode, which are laminated in the stated order, the combination of the hole transporting material and the electron transporting material and the combination of the electron transporting material and the dopant material are optimized.

摘要翻译： 通过简化器件结构并避免使用不稳定的材料，提供了具有高效率和改进的稳定性并且可以通过更简单的工艺制造的三重态发光器件。 在三重态发光器件中常规使用的不使用空穴阻挡层的多层器件结构中，即在衬底上形成阳极的器件结构，由空穴传输材料构成的空穴传输层，电子 由电子传输材料和能够三重发光的掺杂剂构成的传输和发光层和阴极，按照所述顺序层叠空穴传输材料和电子传输材料的组合以及电子的组合 运输材料和掺杂剂材料被优化。

公开(公告)号：US20090174308A1

公开(公告)日：2009-07-09

申请号：US12370836

申请日：2009-02-13

申请人： Hiroko YAMAZAKI ,  Satoshi SEO

发明人： Hiroko YAMAZAKI ,  Satoshi SEO

IPC分类号： H01J1/62

CPC分类号： H01L51/5044 ,  H01L27/3206 ,  H01L27/3244 ,  H01L33/502 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5036 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5234 ,  H01L51/56

摘要： The present invention provides a white organic light-emitting element high in the emission efficiency. In particular, the invention provides a white organic light-emitting element that has an emission spectrum having peaks in the respective wavelength regions of red color, green color and blue color and is high in the emission efficiency.Since a spectrum region lowest in the emission efficiency is a red region, by introducing a reddish phosphorescent material, a highly efficient white organic light-emitting element is obtained. At this time, in order to inhibit the reddish phosphorescent material from singularly emitting, as shown in FIG. 1, a distance between a second emission region 114 where a reddish phosphorescent material 124 is a luminescent material and a first emission region 113 that exhibits emission in a shorter wavelength side than the second emission region is separated. In a configuration shown in FIG. 1, it is preferable to use an electron transport material in a layer 115 between the first emission region and the second emission region and more preferable to use a hole block material.

摘要翻译： 本发明提供了一种发光效率高的白色有机发光元件。 特别地，本发明提供一种白色有机发光元件，其具有在红色，绿色和蓝色的各个波长区域具有峰值的发射光谱，并且发光效率高。 由于发射效率最低的光谱区域是红色区域，所以通过引入红色磷光材料，获得高效率的白色有机发光元件。 此时，为了抑制红色磷光发光材料的发光，如图1所示。 如图1所示，分离出红色磷光材料124为发光材料的第二发光区域114与第二发光区域的短波长侧发光的第一发光区域113之间的距离。 在图1所示的结构中， 如图1所示，优选在第一发光区域和第二发光区域之间的层115中使用电子传输材料，更优选使用空穴阻挡材料。

公开(公告)号：US20120025253A1

公开(公告)日：2012-02-02

申请号：US13232122

申请日：2011-09-14

申请人： Hiroko YAMAZAKI ,  Satoshi SEO

发明人： Hiroko YAMAZAKI ,  Satoshi SEO

IPC分类号： H01L33/42 ,  H01L33/50

CPC分类号： H01L51/5044 ,  H01L27/3206 ,  H01L27/3244 ,  H01L33/502 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5036 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5234 ,  H01L51/56

摘要： The present invention provides a white organic light-emitting element high in the emission efficiency. In particular, the invention provides a white organic light-emitting element that has an emission spectrum having peaks in the respective wavelength regions of red color, green color and blue color and is high in the emission efficiency.Since a spectrum region lowest in the emission efficiency is a red region, by introducing a reddish phosphorescent material, a highly efficient white organic light-emitting element is obtained. At this time, in order to inhibit the reddish phosphorescent material from singularly emitting, as shown in FIG. 1, a distance between a second emission region 114 where a reddish phosphorescent material 124 is a luminescent material and a first emission region 113 that exhibits emission in a shorter wavelength side than the second emission region is separated. In a configuration shown in FIG. 1, it is preferable to use an electron transport material in a layer 115 between the first emission region and the second emission region and more preferable to use a hole block material.

摘要翻译： 本发明提供了一种发光效率高的白色有机发光元件。 特别地，本发明提供一种白色有机发光元件，其具有在红色，绿色和蓝色的各个波长区域具有峰值的发射光谱，并且发光效率高。 由于发射效率最低的光谱区域是红色区域，所以通过引入红色磷光材料，获得高效率的白色有机发光元件。 此时，为了抑制红色磷光发光材料的发光，如图1所示。 如图1所示，分离出红色磷光材料124为发光材料的第二发光区域114与第二发光区域的短波长侧发光的第一发光区域113之间的距离。 在图1所示的结构中， 如图1所示，优选在第一发光区域和第二发光区域之间的层115中使用电子传输材料，更优选使用空穴阻挡材料。