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公开(公告)号：US09806276B2
公开(公告)日：2017-10-31
申请号：US15189739
申请日：2016-06-22
Applicant: LG DISPLAY CO., LTD.
Inventor： Younseok Kam , Chang Wook Han , Hongseok Choi , SoYeon Ahn , Taeshick Kim , Mingyu Lee
CPC classification number: H01L51/504 , H01L27/3209 , H01L27/3244 , H01L51/5004 , H01L51/5056 , H01L51/5064 , H01L51/5265 , H01L51/5278 , H01L2251/552 , H01L2251/558
Abstract: Disclosed is an organic light emitting display (OLED) apparatus with improved efficiency and lifespan, wherein the OLED apparatus includes an anode, a cathode, and a light-emitting unit disposed in-between, wherein the light-emitting unit includes a first emission layer, and a first hole transporting layer having first and second materials, wherein the first material has a higher hole mobility than that of the second material so as to improve a transfer of holes from the first hole transporting layer to the first emission layer, and the second material has a higher triplet energy level than that of the first material so as to reduce a transfer of electrons from the first emission layer to the first hole transporting layer.
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公开(公告)号：US20150280159A1
公开(公告)日：2015-10-01
申请号：US14670446
申请日：2015-03-27
Applicant: LG Display Co., Ltd.
Inventor： Shinhan Kim , Gwijeong Cho , Taeshick Kim , HyungJune Kim
CPC classification number: H01L51/504 , H01L27/32 , H01L51/5004 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L2251/55
Abstract: An organic light emitting device may include first and second electrodes; a first emitting part including a first emitting layer, the first emitting part provided between the first and second electrodes, and the first emitting layer having at least two emitting layers including a blue color emitting layer; a second emitting part including a second emitting layer, the second emitting part provided between the first emitting part and the second electrode, and the second emitting layer having at least two emitting layers including an emitting layer for emitting light having wavelength longer than that of the blue color emitting layer; and a third emitting part including a third emitting layer, the third emitting part provided between the second emitting part and the second electrode, and the third emitting layer having at least two emitting layers including a blue color emitting layer.
Abstract translation: 有机发光器件可以包括第一和第二电极; 第一发光部分，包括第一发光层，设置在第一和第二电极之间的第一发射部分，以及具有包括蓝色发光层的至少两个发光层的第一发光层; 第二发光部分，包括第二发光层，第二发光部分设置在第一发光部分和第二电极之间，第二发光层具有至少两个发光层，该发光层包括用于发射波长比 蓝色发光层; 以及包括第三发光层的第三发光部，设置在第二发光部和第二电极之间的第三发光部，以及具有包含蓝色发光层的至少两个发光层的第三发光层。
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公开(公告)号：US10050238B2
公开(公告)日：2018-08-14
申请号：US15814194
申请日：2017-11-15
Applicant: LG DISPLAY CO., LTD.
Inventor： Gwijeong Cho , ChangWook Han , Taeil Kum , Taeshick Kim , Heedong Choi , JiYoung Kim , Mingyu Lee , Taeseok Lim
Abstract: An organic light emitting display device can include a first electrode on a substrate; a first emission part on the first electrode, the first emission part including a first emission layer; a second emission part on the first emission part, the second emission part including a second emission layer; a third emission part on the second emission part, the third emission part including a third emission layer; and a second electrode on the third emission part, in which a first thickness between the substrate and the first emission layer, a second thickness between the first emission layer and the second emission layer, a third thickness between the second emission layer and the third emission layer, and a fourth thickness between the third emission layer and the second electrode are different from each other, and the first, second emission, and third emission parts include at least one organic layer.
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公开(公告)号：US09847513B2
公开(公告)日：2017-12-19
申请号：US14960918
申请日：2015-12-07
Applicant: LG DISPLAY CO., LTD.
Inventor： Gwijeong Cho , ChangWook Han , Taeil Kum , Taeshick Kim , Heedong Choi , JiYoung Kim , Mingyu Lee , TaeSeok Lim
CPC classification number: H01L51/5278 , H01L27/3206 , H01L27/3209 , H01L27/3244 , H01L51/5044 , H01L2251/558
Abstract: Discussed is an organic light emitting display device. The organic light emitting display device according to an embodiment includes a first electrode and a second electrode on a substrate to be opposite to each other and at least three emission parts between the first electrode and the second electrode. A first distance between the substrate and the first emission layer, a second distance between the first emission layer and the second emission layer, a third distance between the second emission layer and the third emission layer, and a fourth distance between the third emission layer and the second electrode are different from each other.
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公开(公告)号：US10991914B2
公开(公告)日：2021-04-27
申请号：US16453070
申请日：2019-06-26
Applicant: LG Display Co., Ltd.
Inventor： Yonghoon Choi , Jintae Kim , Dongmin Sim , KangJu Lee , Sookang Kim , Taeshick Kim
Abstract: Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element. The light emitting display device includes an overcoating layer on a substrate and including a plurality of protruding portions, a first electrode on the plurality of protruding portions, a light emitting layer on the first electrode, and a second electrode on the light emitting layer. The first electrode has a contour which conforms to contour of the plurality of protruding portions. The light emitting layer has a contour different from the contours of the plurality of protruding portions.
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Patent Agency Ranking
公开(公告)号：US09570696B2
公开(公告)日：2017-02-14
申请号：US14710154
申请日：2015-05-12
Applicant: LG DISPLAY CO., LTD.
Inventor： Taeil Kum , Gwijeong Cho , KiWoog Song , Taeshick Kim
CPC classification number: H01L51/5044 , H01L51/002 , H01L51/504 , H01L51/5278 , H01L2251/558
Abstract: Provided is a white organic light emitting device which can improve abnormal light emission and efficiency and reliability of the device.A white organic light emitting device according to an exemplary embodiment of the present invention includes: a first light emitting unit including a first emitting layer between a first electrode and a second electrode; a second light emitting unit including a second emitting layer on the first light emitting unit; and a charge generation layer between the first light emitting unit and the second light emitting unit, and a volume of a metal in the charge generation layer is 1.0% or less of the total volume of the charge generation layer.
Abstract translation: 根据本发明的示例性实施例的白色有机发光器件包括：第一发光单元，包括在第一电极和第二电极之间的第一发光层; 第二发光单元，包括在第一发光单元上的第二发光层; 以及第一发光单元和第二发光单元之间的电荷产生层，电荷产生层中的金属体积为电荷产生层总体积的1.0％以下。
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公开(公告)号：US09455415B2
公开(公告)日：2016-09-27
申请号：US14670446
申请日：2015-03-27
Applicant: LG Display Co., Ltd.
Inventor： Shinhan Kim , Gwijeong Cho , Taeshick Kim , HyungJune Kim
CPC classification number: H01L51/504 , H01L27/32 , H01L51/5004 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L2251/55
Abstract: An organic light emitting device may include first and second electrodes; a first emitting part including a first emitting layer, the first emitting part provided between the first and second electrodes, and the first emitting layer having at least two emitting layers including a blue color emitting layer; a second emitting part including a second emitting layer, the second emitting part provided between the first emitting part and the second electrode, and the second emitting layer having at least two emitting layers including an emitting layer for emitting light having wavelength longer than that of the blue color emitting layer; and a third emitting part including a third emitting layer, the third emitting part provided between the second emitting part and the second electrode, and the third emitting layer having at least two emitting layers including a blue color emitting layer.
Abstract translation: 有机发光器件可以包括第一和第二电极; 第一发光部分，包括第一发光层，设置在第一和第二电极之间的第一发射部分，以及具有包括蓝色发光层的至少两个发光层的第一发光层; 第二发光部分，包括第二发光层，第二发光部分设置在第一发光部分和第二电极之间，第二发光层具有至少两个发光层，该发光层包括用于发射波长比 蓝色发光层; 以及包括第三发光层的第三发光部，设置在第二发光部和第二电极之间的第三发光部，以及具有包含蓝色发光层的至少两个发光层的第三发光层。
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公开(公告)号：US10032830B2
公开(公告)日：2018-07-24
申请号：US15160256
申请日：2016-05-20
Applicant: LG Display Co., Ltd.
Inventor： TaeSeok Lim , Taeshick Kim , Seung Kim , Jaeseung Jang
Abstract: An organic light emitting display device reduces a grayscale-based color difference of the organic light emitting display device. The organic light emitting display device includes opposite first and second electrodes on a substrate and a plurality of emission parts between the first and second electrodes. At least one among the plurality of emission parts includes a first emission layer and a second emission layer having different wavelength ranges. A dopant content in the first emission layer is lower than a dopant content in the second emission layer.
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公开(公告)号：US10020348B2
公开(公告)日：2018-07-10
申请号：US15469779
申请日：2017-03-27
Applicant: LG Display Co., Ltd.
Inventor： Taeshick Kim , Younseok Kam , Seung Kim , Jaeseung Jang , Mingyu Lee
CPC classification number: H01L27/3209 , H01L25/048 , H01L51/504 , H01L51/5044 , H01L51/5278
Abstract: An organic light emitting display device includes a first emission part between an anode and a cathode and a second emission part on the first emission part. At least one of the first emission part and the second emission part includes at least three emission layers emitting lights of different colors, and one of the at least three emission layers include a green emission layer including a phosphorescent material. Accordingly, a lifetime and color reproduction rate of the organic light emitting display device having green lifetime is enhanced.
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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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