公开(公告)号：US20110068361A1

公开(公告)日：2011-03-24

申请号：US12957619

申请日：2010-12-01

申请人： Li Li ,  Jerzy Dobrowolski ,  Daniel Poitras

发明人： Li Li ,  Jerzy Dobrowolski ,  Daniel Poitras

IPC分类号： H01L33/44

CPC分类号： H01L51/5265 ,  H01L51/0059 ,  H01L51/0078 ,  H01L51/0081

摘要： A light emitting device in the form of a layered structure has a passive bottom multilayer stack including a cathode layer, a cavity layer including a light emitting region, a passive top multilayer stack including a hole transport layer, and a transparent anode layer. The passive bottom and top multilayer stacks are devoid of a light emitting layer. A transparent substrate, through which light is emitted from the device, is located over the top multilayer stack. At least one functional additional layer group in the passive top multilayer stack controls the reflectance of the passive top multilayer stack and phase changes occurring upon reflection from the passive top multilayer stack in the cavity layer.

摘要翻译： 层状结构形式的发光器件具有包括阴极层，包括发光区域的空腔层，包括空穴传输层的无源顶层多层叠层和透明阳极层的无源底层多层叠层。 被动底层和顶层多层叠层没有发光层。 从该装置发射光的透明基板位于顶层多层叠层之上。 无源顶层多层堆叠中的至少一个功能性附加层组控制无源顶层多层叠层的反射率以及在空腔层中从无源顶层多层堆叠反射时发生的相变。

公开(公告)号：US07863632B2

公开(公告)日：2011-01-04

申请号：US11573774

申请日：2004-08-23

申请人： Li Li ,  Jerzy Dobrowolski ,  Daniel Poitras

发明人： Li Li ,  Jerzy Dobrowolski ,  Daniel Poitras

IPC分类号： H01L33/00 ,  H01L21/00

CPC分类号： H01L51/5265 ,  H01L51/0059 ,  H01L51/0078 ,  H01L51/0081

摘要： An organic light emitting device consists of a layered structure including a top multilayer stack, a bottom multilayer stack, a cavity layer between the top multilayer stack and the bottom multilayer stack, and an organic light emitting region within the cavity layer. The layered structure is constructed such that the product of phase factors ξ1 and ξ2 is. greater than 80% at the center of at least one emitting wavelength region and for a normal viewing angle, wherein where Ra− and Rb+ are the reflectance of the top and bottom multilayer stacks respectively, φa− and φb+ are the phase changes on reflection for the top and bottom multilayer stacks respectively, α1 β1 are respectively the real and imaginary parts of the phase thickness of the cavity layer, α2 and β2 are respectively the real and imaginary parts of the phase thickness of the light-emitting region at the operating wavelength of the device, x is the mean distance of light emitting region from the bottom multilayer stack, n and k are the refractive index and absorption coefficient of the cavity layer, θcavity is the emitting angle inside the cavity layer, and d is the physical thickness of said cavity layer. This condition improves the light output efficiency of the device.

摘要翻译： 有机发光器件由包括顶层多层堆叠，底层多层堆叠，顶层多层叠层和底层多层堆叠之间的空腔层以及空腔层内的有机发光区域的分层结构组成。 构造层状结构，使得相位因子＆xgr1和xgr2的乘积为。 在至少一个发射波长区域的中心处大于80％，并且对于正常视角，其中其中R a和R b +分别是顶部和底部多层叠层的反射率，并且＆phgr; b +是相位 分别为顶层和底层多层堆叠的反射变化，α1和bgr1分别是空腔层相位厚度的实部和虚部，α2和＆bgr; 2分别是相位厚度的实部和虚部 在器件的工作波长处的发光区域，x是发光区域与底部多层堆叠体的平均距离，n和k是空腔层的折射率和吸收系数，腔体是内部的发射角 空腔层，d是所述腔层的物理厚度。 该条件提高了器件的光输出效率。

公开(公告)号：US20070246705A1

公开(公告)日：2007-10-25

申请号：US11573774

申请日：2004-08-23

申请人： Li Li ,  Jerzy Dobrowolski ,  Daniel Poitras

发明人： Li Li ,  Jerzy Dobrowolski ,  Daniel Poitras

IPC分类号： H01L51/00 ,  H01L21/00

CPC分类号： H01L51/5265 ,  H01L51/0059 ,  H01L51/0078 ,  H01L51/0081

摘要： An organic light emitting device consists of a layered structure including a top multilayer stack, a bottom multilayer stack, a cavity layer between the top multilayer stack and the bottom multilayer stack, and an organic light emitting region within the cavity layer. The layered structure is constructed such that the product of phase factors ξ1 and ξ2 is. greater than 80% at the center of at least one emitting wavelength region and for a normal viewing angle, wherein where Ra− and Rb+ are the reflectance of the top and bottom multilayer stacks respectively, φa− and φb+ are the phase changes on reflection for the top and bottom multilayer stacks respectively, α1 β1 are respectively the real and imaginary parts of the phase thickness of the cavity layer, α2 and β2 are respectively the real and imaginary parts of the phase thickness of the light-emitting region at the operating wavelength of the device, x is the mean distance of light emitting region from the bottom multilayer stack, n and k are the refractive index and absorption coefficient of the cavity layer, θcavity is the emitting angle inside the cavity layer, and d is the physical thickness of said cavity layer. This condition improves the light output efficiency of the device.

摘要翻译： 有机发光器件由包括顶层多层堆叠，底层多层堆叠，顶层多层叠层和底层多层堆叠之间的空腔层以及空腔层内的有机发光区域的分层结构组成。 层状结构被构造成使得相位因子x 1和x 2 2的乘积是。 在至少一个发射波长区域的中心处大于80％，并且具有正常的视角，其中R a a和 - 分别是顶部和底部多层叠层的反射率，分别为phi＆lt; SUB＆gt;和＆lt; b＆gt;＆lt; +分别为顶层和底层多层叠层反射的相变，α1β1分别为相厚度的实部和虚部 腔层，α2和β2分别是器件的工作波长处的发光区域的相位厚度的实部和虚部，x是 距离底层多层堆叠的发光区域的平均距离，n和k是空腔层的折射率和吸收系数，θ是空腔层内的发射角，d是物理层的物理 所述腔层的厚度。 该条件提高了器件的光输出效率。