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公开(公告)号：US20230140767A1
公开(公告)日：2023-05-04
申请号：US17714892
申请日：2022-04-06
Applicant: Samsung Display Co., Ltd.
Inventor： Hakchoong Lee , Yoonseok Ka , Dongchan Kim , Jiyoung Moon , Hajin Song , Jihwan Yoon , Jaehoon Hwang
IPC: H01L51/52
Abstract: A light-emitting device includes a second electrode that includes: a first layer including a first metal having a work function with an absolute value of 5.2 eV or less and a second metal having an electrical conductivity of 1×107 S/m or more; and a second layer consisting of the second metal having the electrical conductivity of 1×107 S/m or more. The first metal and the second metal are different from each other, a thickness of the first layer is from 1 Å to 30 Å, and a thickness of the second layer is from 10 Å to 110 Å.
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公开(公告)号：US20220149293A1
公开(公告)日：2022-05-12
申请号：US17454006
申请日：2021-11-08
Applicant: Samsung Display Co., Ltd.
Inventor： Seulong Kim , Hajin Song
IPC: H01L51/00
Abstract: An organic light-emitting device and an electronic apparatus including the same are disclosed. The organic light-emitting device includes: a first electrode, a second electrode facing the first electrode; and an interlayer including a first emission layer and a second emission layer, which are located between the first electrode and the second electrode, wherein the first emission layer includes a first host and a first dopant, the second emission layer includes a second host and a second dopant, the first emission layer has greater hole mobility than electron mobility, the second emission layer has greater electron mobility than hole mobility, the first host has a triplet excitation energy level (T1) value of 2.0 eV or more, and the second host has a T1 value of 1.6 eV or more and 1.8 eV or less.
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公开(公告)号：US20190214437A1
公开(公告)日：2019-07-11
申请号：US16355605
申请日：2019-03-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sangwoo Pyo , Hajin Song , Jihwan Yoon , Heunseung Lee
CPC classification number: H01L27/3211 , H01L51/504 , H01L51/5218 , H01L51/5265
Abstract: A display device includes a substrate having a red pixel region, a blue pixel region, and a green pixel region. An anode is on the substrate, a light-emitting layer is on the anode, and a cathode is on the light-emitting layer, wherein the light-emitting layer includes a red light-emitting layer emitting red light on the red pixel region, a blue light-emitting layer emitting blue light on the blue pixel region, and a green light-emitting layer emitting green light on the red pixel region, the blue pixel region, and the green pixel region. Each of the red light, the blue light, and the green light is resonated between the anode and the cathode.
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公开(公告)号：US10297644B2
公开(公告)日：2019-05-21
申请号：US15700549
申请日：2017-09-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hajin Song , Byeongwook Yoo , Jihwan Yoon , Jaehoon Hwang
IPC: H01L27/32 , H01L51/50 , H01L51/52 , G09G3/3225 , G09G3/3233
Abstract: An OLED display device includes a substrate including red, green, and blue pixel areas, a first electrode at each of the red pixel area, the green pixel area, and the blue pixel area on the substrate, a hole transport layer on the first electrode, a light emission portion on the hole transport layer, the light emission portion including a red light emitting layer at the red pixel area, a green light emitting layer at the green pixel area, and a blue light emitting layer at the blue pixel area, a first charge generation layer and a first resonance auxiliary layer between the hole transport layer and the blue light emitting layer, a second resonance auxiliary layer between the hole transport layer and the red light emitting layer, an electron transport layer on the light emission portion, and a second electrode on the electron transport layer.
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公开(公告)号：US09515127B2
公开(公告)日：2016-12-06
申请号：US14817563
申请日：2015-08-04
Applicant: Samsung Display Co., Ltd.
Inventor： Sangwoo Pyo , Hajin Song , Heunseung Lee
CPC classification number: H01L27/3211 , H01L51/5004 , H01L51/5088 , H01L51/5096 , H01L51/5265 , H01L2251/552
Abstract: An organic electroluminescent display apparatus includes: a base substrate; a first electrode; a hole transport region; a light-emitting unit; a common layer; a first resonance auxiliary layer; a second resonance auxiliary layer; an electron transport region; and a second electrode. The light-emitting unit includes a first light-emitting layer disposed on the first pixel region and a second light-emitting layer disposed on the second pixel region. The first resonance auxiliary layer and the second resonance auxiliary layer may be separated from the common layer.
Abstract translation: 一种有机电致发光显示装置，包括：基底; 第一电极; 空穴输送区域 发光单元; 共同层; 第一谐振辅助层; 第二谐振辅助层; 电子传输区域; 和第二电极。 发光单元包括设置在第一像素区域上的第一发光层和设置在第二像素区域上的第二发光层。 第一共振辅助层和第二共振辅助层可以与公共层分离。
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Patent Agency Ranking
公开(公告)号：US12193253B2
公开(公告)日：2025-01-07
申请号：US17575583
申请日：2022-01-13
Applicant: Samsung Display Co., Ltd.
Inventor： Jimyoung Ye , Seulong Kim , Hyekyun Lee , Hajin Song , Jihwan Yoon , Dongseob Jeong , Jaehoon Hwang
IPC: H10K50/13 , H10K50/11 , H10K50/19 , H10K59/122 , H10K59/38 , H10K101/00 , H10K101/10
Abstract: A light emitting devices includes a first electrode, a hole transport region on the first electrode, a first emission layer on the hole transport region, the first emission layer to emit light of a first wavelength, a second emission layer on the hole transport region and to emit light of a second wavelength, an electron transport region on the first and second emission layers, and a second electrode on the electron transport region. The first emission layer includes a first sub-emission layer including a first hole transport host and a first sub-dopant to emit the light of the first wavelength, and a second sub-emission layer including a first electron transport and a second sub-dopant to emit the light of the first wavelength. The second emission layer includes a second hole transport host, a second electron transport host, and a second dopant to emit the light of the second wavelength.
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17.发明公开公开(公告)号：US20240074310A1
公开(公告)日：2024-02-29
申请号：US18315026
申请日：2023-05-10
Applicant: Samsung Display Co., Ltd.
Inventor： Jimyoung Ye , Jiyoung Song , Hajin Song , Jihwan Yoon , Jaehoon Hwang
CPC classification number: H10K85/6572 , H10K50/13 , H10K85/6574 , H10K50/12
Abstract: Embodiments provide a light-emitting device that includes a first electrode, a second electrode facing the first electrode, and light-emitting units between the first electrode and the second electrode. The light-emitting units include at least one first light-emitting unit and at least one second light-emitting unit, the first light-emitting unit includes a first emission layer including a first host and a first dopant, the second light-emitting unit includes a second emission layer including a second host, a third host, and a second dopant, the first host includes a first compound represented by Formula 1, the second host includes at least one second compound each independently represented by one of Formulae 2a to 2c, the third host includes a third compound represented by Formula 3, wherein Formulae 1, 2a to 2c, and 3 are explained in the specification:
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公开(公告)号：US11903288B2
公开(公告)日：2024-02-13
申请号：US18154471
申请日：2023-01-13
Applicant: Samsung Display Co., LTD.
Inventor： Hajin Song , Jihwan Yoon , Sangwoo Lee , Sangwoo Pyo
IPC: H10K59/35 , H10K50/15 , H10K50/16 , H10K50/11 , H10K50/125 , H10K59/131 , H10K71/00 , H10K50/852 , H10K59/12 , H10K85/60 , H10K101/10 , H10K101/40 , H10K101/00 , H10K101/30
CPC classification number: H10K59/35 , H10K50/11 , H10K50/125 , H10K50/15 , H10K50/16 , H10K59/131 , H10K71/00 , H10K50/852 , H10K59/1201 , H10K85/655 , H10K85/6572 , H10K2101/10 , H10K2101/27 , H10K2101/30 , H10K2101/40 , H10K2101/90
Abstract: An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.
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公开(公告)号：US11581371B2
公开(公告)日：2023-02-14
申请号：US17201737
申请日：2021-03-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hajin Song , Jihwan Yoon , Sangwoo Lee , Sangwoo Pyo
Abstract: An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.
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公开(公告)号：US20190288042A1
公开(公告)日：2019-09-19
申请号：US16432375
申请日：2019-06-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hajin Song , Jihwan Yoon , Sangwoo Lee , Sangwoo Pyo
Abstract: An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.
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