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Patent Agency Ranking
公开(公告)号：US09842885B2
公开(公告)日：2017-12-12
申请号：US15181793
申请日：2016-06-14
Applicant: LG DISPLAY CO., LTD.
Inventor： Taesun Yoo , Hongseok Choi , Mi-Young Han , JungSoo Park
CPC classification number: H01L27/3206 , H01L27/3209 , H01L27/3244 , H01L51/5024 , H01L51/504 , H01L51/5096
Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes an emission part which is disposed between an anode and a cathode and includes an emission layer. The emission part includes at least two emission layers emitting lights of different colors and a recombination zone movement prevention layer. The at least two emission layers each includes at least one host and at least one dopant, and the recombination zone movement prevention layer is disposed on a specific emission layer among the at least two emission layers.
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公开(公告)号：US09590201B2
公开(公告)日：2017-03-07
申请号：US14475073
申请日：2014-09-02
Applicant: LG DISPLAY CO., LTD.
Inventor： Jeonghaeng Heo , Taesun Yoo , Taeshick Kim , Seung Kim
CPC classification number: H01L51/5088 , H01L27/3211 , H01L27/322 , H01L51/5044 , H01L51/5092 , H01L2251/558
Abstract: An organic light emitting diode display has uniform light emission efficiency over the entire pixel area. The organic light emitting diode display comprises: a substrate having a red pixel area, a green pixel area, and a blue pixel area arrayed in a matrix; an anode electrode in the red, green, and blue pixel areas; a hole injection layer including an organic material with an extinction coefficient less than about 0.13 and on the anode electrode covering a whole surface of the substrate; an emission layer on the hole injection layer; an electron injection layer on a whole surface of the emission layer; and a cathode electrode on a whole surface of the electron injection layer.
Abstract translation: 有机发光二极管显示器在整个像素区域具有均匀的发光效率。 有机发光二极管显示器包括：具有红色像素区域，绿色像素区域和排列成矩阵的蓝色像素区域的衬底; 红色，绿色和蓝色像素区域中的阳极电极; 包括消光系数小于约0.13的有机材料的空穴注入层和覆盖基板的整个表面的阳极电极; 空穴注入层上的发光层; 在发射层的整个表面上的电子注入层; 以及在电子注入层的整个表面上的阴极电极。
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公开(公告)号：US10043856B2
公开(公告)日：2018-08-07
申请号：US15808027
申请日：2017-11-09
Applicant: LG DISPLAY CO., LTD.
Inventor： Taesun Yoo , Hongseok Choi , Mi-Young Han , JungSoo Park
Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes an emission part which is disposed between an anode and a cathode and includes an emission layer. The emission part includes at least two emission layers emitting lights of different colors and a recombination zone movement prevention layer. The at least two emission layers each includes at least one host and at least one dopant, and the recombination zone movement prevention layer is disposed on a specific emission layer among the at least two emission layers.
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公开(公告)号：US10003038B2
公开(公告)日：2018-06-19
申请号：US15220117
申请日：2016-07-26
Applicant: LG DISPLAY CO., LTD.
Inventor： Mi-Young Han , Hongseok Choi , Taesun Yoo , JungSoo Park
IPC: H01L51/50
CPC classification number: H01L51/504 , H01L51/5004 , H01L51/5012 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L51/508 , H01L2251/5384 , H01L2251/552 , H01L2251/558
Abstract: Discussed herein is an organic light-emitting device capable of increasing luminous efficiency and panel efficiency while improving color gamut. The organic light-emitting device includes a red organic light emitting layer including a single host material of hole transport type and a yellow-green organic light emitting layer including a plurality of host materials in a light-emitting stack. Instead of using an additional host material for the organic light emitting layers, the material of the electron transport layer and the material of the hole transport layer is used as the host material of the yellow-green organic light emitting layer, and the material of the hole transport layer is used as the host material of the red organic light emitting layer. Accordingly, the number of materials of the organic light emitting layers is reduced, such that the fabricating process becomes simpler.
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公开(公告)号：US09978970B2
公开(公告)日：2018-05-22
申请号：US15195024
申请日：2016-06-28
Applicant: LG Display Co., Ltd.
Inventor： JaeMan Lee , Taesun Yoo , Mi-Young Han , SoYeon Ahn , Heedong Choi , JungSoo Park , Yoondeok Han
CPC classification number: H01L51/5004 , H01L27/3209 , H01L27/3211 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5271 , H01L51/5278 , H01L2251/552
Abstract: An organic light emitting device including an organic light emitting element having a low driving voltage and a high luminous efficiency is provided. The organic light emitting device includes two or more stack emission units, and a charge generating layer including an N-type charge generating layer and a P-type charge generating layer is disposed between the stack emission units. Herein, the P-type charge generating layer is formed of a material having an LUMO energy level similar to an HOMO energy level of a hole transporting layer injected with holes from the P-type charge generating layer. Accordingly, even if the P-type charge generating layer is not additionally doped with a P-type dopant, it is possible to readily inject holes into a stack emission unit adjacent to the P-type charge generating layer.
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