公开(公告)号：US20100140605A1

公开(公告)日：2010-06-10

申请号：US12632825

申请日：2009-12-08

申请人： Kazuyuki SHIBATA ,  Masaru KINOSHITA ,  Tasuku SATOU

发明人： Kazuyuki SHIBATA ,  Masaru KINOSHITA ,  Tasuku SATOU

IPC分类号： H01L51/52

CPC分类号： H01L51/0087 ,  H01L51/0058 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5036

摘要： The invention provides an organic EL device including a pair of electrodes and at least one luminescent layer between the pair of electrodes, the at least one luminescent layer including at least two phosphorescent materials, an electrically inert material, and a charge-transporting material, the at least two phosphorescent materials being selected from a blue phosphorescent material having a luminescence peak in a range of from 420 nm to less than 500 nm, a green phosphorescent material having a luminescence peak in a range of from 500 nm to less than 570 nm, or a red phosphorescent material having a luminescence peak in a range of from 570 nm to 650 nm. The invention also provides a luminescence apparatus including the above organic EL device.

摘要翻译： 本发明提供了一种有机EL器件，其包括一对电极和在该对电极之间的至少一个发光层，所述至少一个发光层包括至少两个磷光材料，电惰性材料和电荷输送材料， 选自具有420nm至小于500nm范围内的发光峰的蓝色磷光材料中的至少两种磷光材料，具有500nm至小于570nm范围内的发光峰的绿色磷光材料， 或具有在570nm至650nm范围内的发光峰的红色磷光材料。 本发明还提供一种包括上述有机EL器件的发光装置。

公开(公告)号：US20100140606A1

公开(公告)日：2010-06-10

申请号：US12634670

申请日：2009-12-09

申请人： Kazuyuki SHIBATA ,  Masaru KINOSHITA

发明人： Kazuyuki SHIBATA ,  Masaru KINOSHITA

IPC分类号： H01L51/52

CPC分类号： H01L51/5016 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5036 ,  H01L2251/552

摘要： The invention provides an organic EL device including a pair of electrodes and at least one luminescent layer located between the pair of electrodes, the luminescent layer including a blue phosphorescent material having a luminescence peak in a range of from 420 nm to less than 500 nm, a green phosphorescent material having a luminescence peak in a range of from 500 nm to less than 570 nm, a red phosphorescent material having a luminescence peak in a range of from 570 nm to 650 nm, and a charge-transporting material, the charge-transporting material having a lowest excited triplet energy level (T1) of 2.7 eV or more, and the T1 of the charge-transporting material being higher than the T1 of the blue phosphorescent material by 0.08 eV or more.

摘要翻译： 本发明提供了一种有机EL器件，其包括一对电极和位于该对电极之间的至少一个发光层，所述发光层包括具有420nm至小于500nm范围内的发光峰的蓝色磷光材料， 具有500nm至小于570nm范围内的发光峰的绿色磷光材料，具有570nm至650nm范围内的发光峰的红色磷光材料和电荷输送材料， 具有2.7eV以上的最低激发三重态能级（T1）的材料，并且电荷输送材料的T1比蓝色磷光材料的T1高0.08eV以上。

公开(公告)号：US20100140645A1

公开(公告)日：2010-06-10

申请号：US12633819

申请日：2009-12-09

申请人： Kazuyuki SHIBATA

发明人： Kazuyuki SHIBATA

IPC分类号： H01L33/00

CPC分类号： H01L51/5044 ,  H01L51/5016 ,  H01L51/5048

摘要： Disclosed is an organic electroluminescence device containing a pair of electrodes on a substrate, two or more luminescence layers disposed between the electrodes, and an intermediate layer containing a charge transporting material and disposed between the two or more luminescence layers, each of the two or more luminescence layers contains at least one phosphorescence material selected from a blue phosphorescence material having an emission peak from 420 nm to less than 500 nm, a green phosphorescence material having an emission peak from 500 nm to less than 570 nm, and a red phosphorescence material having an emission peak from 570 nm to 650 nm, the phosphorescence material contained in the respective luminescence layers having different emission peaks from one another; and the charge transporting material contained in the intermediate layer has an energy difference (T1) of 2.7 eV or more between a ground state and an excited triplet state and the energy difference (T1) of the charge transporting material is higher by at least 0.15 eV than T1 of a phosphorescence material having the shortest wavelength emission among the phosphorescence materials contained in the two or more luminescence layers.

摘要翻译： 公开了一种在基板上含有一对电极的有机电致发光元件，设置在电极之间的两个以上的发光层，以及包含电荷输送材料并设置在两个以上的发光层之间的中间层， 发光层含有选自具有420nm至小于500nm的发射峰的蓝色磷光材料的至少一种磷光材料，具有500nm至小于570nm的发光峰的绿色磷光材料和具有 570nm至650nm的发射峰，各发光层中所含的磷光材料彼此具有不同的发射峰; 并且包含在中间层中的电荷输送材料在基态和激发三重态之间的能量差（T1）为2.7eV以上，并且电荷输送材料的能量差（T1）高至少0.15eV 比在两个或更多个发光层中包含的磷光材料中具有最短波长发射的磷光材料的T1。