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公开(公告)号：US10269871B2
公开(公告)日：2019-04-23
申请号：US15857237
申请日：2017-12-28
Applicant: LG DISPLAY CO., LTD.
Inventor： Mi-Na Kim
Abstract: An organic light emitting device and an organic light emitting display device using the same are discussed, for changing a structure of an emissive layer to enhance viewing angle characteristics and lifespan. Emissive layers having hosts with different characteristics are stacked to prevent visual reduction depending on a viewing angle and to enhance a lifespan.
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公开(公告)号：US11094762B2
公开(公告)日：2021-08-17
申请号：US16725785
申请日：2019-12-23
Applicant: LG Display Co., Ltd.
Inventor： Kyu-Il Han , Nam-Seok Yoo , Jin-Ho Park , Mi-Na Kim , Hyung-Won Park , Jung-Mo Cho , Yu-Ri Park , Hyoung-Min Kim , Seung-Ho Son
Abstract: Disclosed is a display device. In accordance with the display device, before an organic stack of a light-emitting diode is formed, a sticker is attached to a substrate, while a camera hole-forming portion and a margin area around the same are present, to form the organic stack, and the sticker and components on top of the sticker, such as the organic stack, are removed, so that the edge of the organic stack can be aligned without any additional process using separate masks and the reliability of the display device can be improved due to the provision of the organic stack at a location spaced apart from the camera hole by the margin area.
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公开(公告)号：US09692017B2
公开(公告)日：2017-06-27
申请号：US14698473
申请日：2015-04-28
Applicant: LG DISPLAY CO., LTD.
Inventor： Ho-Sung Kim , Mi-Na Kim
CPC classification number: H01L51/5278 , H01L27/3211 , H01L27/3244 , H01L51/5012 , H01L51/504 , H01L51/5056 , H01L51/5068 , H01L51/5206 , H01L51/5221 , H01L51/5265 , H01L2251/558
Abstract: An organic light emitting diode can include a first electrode and a second electrode; an organic light emitting layer between the first electrode and the second electrode; and a auxiliary light emitting layer between the first electrode and the organic light emitting layer or between the organic light emitting layer and the second electrode, wherein a difference between a main peak wavelength of light emitted from the organic light emitting layer itself and a main peak wavelength of light out-coupling between the first and second electrodes is within a predetermined range.
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4.发明授权公开(公告)号：US12114539B2
公开(公告)日：2024-10-08
申请号：US18357911
申请日：2023-07-24
Applicant: LG Display Co., Ltd.
Inventor： Mi-Na Kim , Namseok Yoo , JungSun Beak , Seongjoo Lee , Sunmi Lee
IPC: H10K59/122 , H10K50/818 , H10K50/844 , H10K59/35
CPC classification number: H10K59/122 , H10K50/818 , H10K50/844 , H10K59/353
Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
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公开(公告)号：US09786720B2
公开(公告)日：2017-10-10
申请号：US14728360
申请日：2015-06-02
Applicant: LG DISPLAY CO., LTD.
Inventor： Mi-Na Kim , Kwang Hyun Kim , Jin Ho Park
CPC classification number: H01L27/3211 , H01L51/0001 , H01L51/0021 , H01L51/504 , H01L51/506 , H01L51/5064 , H01L51/5072 , H01L51/5088 , H01L51/52 , H01L51/5203 , H01L51/5218 , H01L51/5234 , H01L51/5265 , H01L51/5271 , H01L51/56 , H01L2251/558
Abstract: An organic light emitting display device including, according to one embodiment, a substrate having first, second, and third pixel areas; a first hole transporting layer on the substrate; a first emission common layer on the first transport layer; a second emission common layer on the first emission common layer; a third emission common layer on the second emission common layer; a second hole transporting layer between the first hole transporting layer and the first emission common layer, the second hole transporting layer disposed on the first pixel area; a third hole transporting layer between the first and second emission common layers, the third hole transporting layer disposed on the second pixel area; and a fourth hole transporting layer between the second and third emission common layers, the fourth hole transporting layer disposed on the third pixel area.
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Patent Agency Ranking
公开(公告)号：US20240244893A1
公开(公告)日：2024-07-18
申请号：US18522699
申请日：2023-11-29
Applicant: LG Display Co., Ltd.
Inventor： Moonsung Kil , YongCheol Kim , Mi-Na Kim
IPC: H10K59/122 , H10K59/35 , H10K59/80
CPC classification number: H10K59/122 , H10K59/351 , H10K59/353 , H10K59/80515 , H10K59/80518 , H10K59/873
Abstract: A display device according to an exemplary embodiment of the present disclosure includes a planarization layer disposed above a substrate, a first bank disposed on the planarization layer, an anode disposed on the planarization layer and on a side surface of the first bank, a second bank covering a portion of the anode and the first bank and disposed above the first bank and the anode, a doping layer disposed on a top surface and a side portion of the second bank, an organic layer which is disposed on the doping layer and the anode, a cathode disposed on the organic layer, and an encapsulating unit disposed above the cathode. By doing this, the reflectance is reduced and the damage of the light emitting diode is suppressed.
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7.发明授权公开(公告)号：US11289557B2
公开(公告)日：2022-03-29
申请号：US16984959
申请日：2020-08-04
Applicant: LG Display Co., Ltd.
Inventor： Mi-Na Kim , Namseok Yoo , JungSun Baek , Seongjoo Lee , Sunmi Lee
Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
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公开(公告)号：US09640591B2
公开(公告)日：2017-05-02
申请号：US14728221
申请日：2015-06-02
Applicant: LG DISPLAY CO., LTD.
Inventor： Mi-Na Kim , Kwang Hyun Kim , Jin Ho Park
CPC classification number: H01L27/3211 , H01L51/0001 , H01L51/0021 , H01L51/504 , H01L51/506 , H01L51/5064 , H01L51/5072 , H01L51/5088 , H01L51/52 , H01L51/5203 , H01L51/5218 , H01L51/5234 , H01L51/5265 , H01L51/5271 , H01L51/56 , H01L2251/558
Abstract: A method of manufacturing an organic light emitting display device. The method according to one embodiment includes forming a first electrode over a substrate in which red, green, and blue pixel areas are defined; forming a first hole transporting layer on the first electrode; forming a second hole transporting layer in a position corresponding to the red pixel area; forming a first emission common layer; forming a third hole transporting layer on the first emission common layer in a position corresponding to the green pixel area; forming a second emission common layer; forming a fourth hole transporting layer on the second emission common layer in a position corresponding to the blue pixel area; forming a third emission common layer; forming an electron transporting layer on the third emission common layer; and forming a second electrode on the electron transporting layer.
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公开(公告)号：US09166204B2
公开(公告)日：2015-10-20
申请号：US14466025
申请日：2014-08-22
Applicant: LG Display Co., Ltd.
Inventor： Jin-Ho Park , Kwang-Hyun Kim , Mi-Na Kim
CPC classification number: H01L51/56 , H01L27/153 , H01L27/3211 , H01L51/504 , H01L51/5064 , H01L51/5265 , H01L2251/558
Abstract: An organic light-emitting diode includes an anode on a substrate; a first hole transporting layer on the anode; a second hole transporting layer on the first hole transporting layer and corresponding to the red and green pixel areas; a first emitting material pattern of a first thickness on the second hole transporting layer and corresponding to the red pixel area; a second emitting material pattern of a second thickness on the second hole transporting layer and corresponding to the green pixel area; a third emitting material pattern of a third thickness on the first hole transporting layer and corresponding to the blue pixel area; an electron transporting layer on the first, second and third emitting material patterns; and a cathode on the electron transporting layer, wherein the second thickness is less than the first thickness and greater than the third thickness.
Abstract translation: 有机发光二极管包括在基板上的阳极; 阳极上的第一空穴传输层; 在第一空穴传输层上并对应于红色和绿色像素区域的第二空穴传输层; 在第二空穴传输层上并对应于红色像素区域的第一厚度的第一发光材料图案; 第二厚度的第二发光材料图案在第二空穴传输层上并对应于绿色像素区域; 第三厚度的第三发光材料图案在第一空穴传输层上，并对应于蓝色像素区域; 在第一，第二和第三发光材料图案上的电子传输层; 和电子传输层上的阴极，其中第二厚度小于第一厚度并且大于第三厚度。
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10.发明公开公开(公告)号：US20230380221A1
公开(公告)日：2023-11-23
申请号：US18357911
申请日：2023-07-24
Applicant: LG Display Co., Ltd.
Inventor： Mi-Na Kim , Namseok YOO , JungSun BEAK , Seongjoo LEE , Sunmi LEE
IPC: H10K59/122 , H10K50/818 , H10K50/844 , H10K59/35
CPC classification number: H10K59/122 , H10K50/818 , H10K50/844 , H10K59/353
Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.
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