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公开(公告)号：US20130069077A1
公开(公告)日：2013-03-21
申请号：US13623452
申请日：2012-09-20
Applicant: LG DISPLAY CO., LTD.
Inventor： Ki-Woog Song , Sung-Hoon Pieh , Sung-Jae Ko
IPC: H01L33/26
CPC classification number: H01L51/5278 , H01L27/3209 , H01L51/5004 , H01L51/5016 , H01L51/5096 , H01L2251/5376 , H01L2251/55
Abstract: Disclosed white organic light emitting device includes an anode and a cathode opposing each other; a charge generation layer interposed between the anode and the cathode; a first stack interposed between the anode and the charge generation layer, the first stack including a first hole transport layer and a first light emitting layer emitting blue fluorescent light; and a second stack interposed between the charge generation layer and the cathode, the second stack including a second hole transport layer and a second light emitting layer formed by doping one host with at least one of phosphorescent dopant, wherein a triplet energy level of the first hole transport layer is higher than a triplet energy level of the first light emitting layer, and a hole mobility of the first hole transport layer is 5.0×10-4 cm2/s·V to 9.9×10-3 cm2/s·V.
Abstract translation: 公开的白色有机发光器件包括彼此相对的阳极和阴极; 介于阳极和阴极之间的电荷产生层; 插入在阳极和电荷产生层之间的第一堆叠，第一堆叠包括第一空穴传输层和发射蓝色荧光的第一发光层; 以及插入在电荷产生层和阴极之间的第二叠层，第二堆叠包括第二空穴传输层和通过用磷掺杂剂中的至少一种掺杂一个主体形成的第二发光层，其中第一 空穴传输层高于第一发光层的三线态能级，第一空穴传输层的空穴迁移率为5.0×10 -4 cm 2 / s·V〜9.9×10 -3 cm 2·s·V。
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公开(公告)号：US09997739B2
公开(公告)日：2018-06-12
申请号：US13623452
申请日：2012-09-20
Applicant: LG Display Co., Ltd.
Inventor： Ki-Woog Song , Sung-Hoon Pieh , Sung-Jae Ko
CPC classification number: H01L51/5278 , H01L27/3209 , H01L51/5004 , H01L51/5016 , H01L51/5096 , H01L2251/5376 , H01L2251/55
Abstract: Disclosed white organic light emitting device includes an anode and a cathode opposing each other; a charge generation layer interposed between the anode and the cathode; a first stack interposed between the anode and the charge generation layer, the first stack including a first hole transport layer and a first light emitting layer emitting blue fluorescent light; and a second stack interposed between the charge generation layer and the cathode, the second stack including a second hole transport layer and a second light emitting layer formed by doping one host with at least one of phosphorescent dopant, wherein a triplet energy level of the first hole transport layer is higher than a triplet energy level of the first light emitting layer, and a hole mobility of the first hole transport layer is 5.0×10−4 cm2/s·V to 9.9×10−3 cm2/s·V.
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公开(公告)号：US20130119357A1
公开(公告)日：2013-05-16
申请号：US13672977
申请日：2012-11-09
Applicant: LG Display Co., Ltd
Inventor： Hwa-Kyung Kim , Sung-Hoon Pieh , Jae-Il Song , Sung-Jae Ko
CPC classification number: H01L51/5048 , H01L27/3209 , H01L51/5265 , H01L2251/5376 , H05B33/14
Abstract: A white organic light emitting device, with improved color shift characteristics and improved efficiency according to viewing angle changes by controlling conditions for designing an optical path in organic material layers between a cathode and an anode or adjusting interior or exterior thicknesses of the organic material layers, has a structure including a first electrode and layers between the first electrode and a second electrode satisfies an optical path condition represented by the following equation n a d a λ + ∑ j n j w d j w λ = 1.85 ∼ 2.15 with respect to emissions of the first and second stacks, where λ is an emission peak wavelength of the first stack or the second stack, na and da are a refractive index and a thickness of a transparent electrode selected from the first and second electrode, and nw and dw are a refractive index and a thickness of any one of the layers disposed between the first electrode and the second electrode, respectively.
Abstract translation: 通过控制用于设计阴极和阳极之间的有机材料层中的光路的条件或调节有机材料层的内部或外部厚度，根据视角改变颜色偏移特性和改进效率的白色有机发光器件， 具有包括第一电极和在第一电极和第二电极之间的层的结构满足由以下等式表示的光路条件：对于发射的第一电极和第二电极的发射，满足由以下等式表示的光路条件：naλd +λ= 1.85〜2.15 第一和第二堆叠，其中λ是第一堆叠或第二堆叠的发射峰值波长，na和da是从第一和第二电极选择的透明电极的折射率和厚度，nw和dw是折射率 指数和分别设置在第一电极和第二电极之间的层中的任一层的厚度 。
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公开(公告)号：US08895969B2
公开(公告)日：2014-11-25
申请号：US13672977
申请日：2012-11-09
Applicant: LG Display Co., Ltd.
Inventor： Hwa-Kyung Kim , Sung-Hoon Pieh , Jae-II Song , Sung-Jae Ko
CPC classification number: H01L51/5048 , H01L27/3209 , H01L51/5265 , H01L2251/5376 , H05B33/14
Abstract: A white organic light emitting device, with improved color shift characteristics and improved efficiency according to viewing angle changes by controlling conditions for designing an optical path in organic material layers between a cathode and an anode or adjusting interior or exterior thicknesses of the organic material layers, has a structure including a first electrode and layers between the first electrode and a second electrode satisfies an optical path condition represented by the following equation n a d a λ + ∑ j n j w d j w λ = 1.85 ∼ 2.15 with respect to emissions of the first and second stacks, where λ is an emission peak wavelength of the first stack or the second stack, na and da are a refractive index and a thickness of a transparent electrode selected from the first and second electrode, and nw and dw are a refractive index and a thickness of any one of the layers disposed between the first electrode and the second electrode, respectively.
Abstract translation: 通过控制用于设计阴极和阳极之间的有机材料层中的光路的条件或调节有机材料层的内部或外部厚度，根据视角改变颜色偏移特性和改进效率的白色有机发光器件， 具有包括第一电极和第一电极与第二电极之间的层的结构满足由以下等式表示的光路条件：na da + + jjnnjwdjwλ= 1.85〜2.15，相对于 第一和第二堆叠，其中λ是第一堆叠或第二堆叠的发射峰值波长，na和da是从第一和第二电极选择的透明电极的折射率和厚度，nw和dw是折射率 指数和分别设置在第一电极和第二电极之间的层中的任一层的厚度。
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