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公开(公告)号：EP4043533A1
公开(公告)日：2022-08-17
申请号：EP22158753.8
申请日：2019-08-23
发明人： CHUNG, Dae Young , KIM, Kwanghee , SEO, Hongkyu , JANG, Eun Joo , CHO, Oul , KIM, Tae Hyung , WON, Yuho , LEE, Heejae
IPC分类号： C09K11/02 , C09K11/88 , C09K11/70 , H05B33/14 , H05B33/22 , H05B33/10 , H01L33/00 , H01L33/06 , H01L33/26 , H01L51/50
摘要： A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
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公开(公告)号：EP3796409A1
公开(公告)日：2021-03-24
申请号：EP20196965.6
申请日：2020-09-18
发明人： KIM, Tae Ho , HAN, Moon Gyu , SEO, Hongkyu , LEE, Heejae , JANG, Eun Joo
IPC分类号： H01L51/50
摘要： An electroluminescent device and a display device including the same are disclosed, wherein the electroluminescent device includes a first electrode; a hole transport layer disposed on the first electrode; a light emitting layer including a first light emitting layer disposed on the hole transport layer, the first emitting layer including a first quantum dot, and a second light emitting layer including a second quantum dot and an n-type organic semiconductor, the second light emitting layer disposed on the first light emitting layer; an electron transport layer disposed on the second light emitting layer; and a second electrode disposed on the electron transport layer.
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公开(公告)号：EP3597724A1
公开(公告)日：2020-01-22
申请号：EP19186551.8
申请日：2019-07-16
发明人： SEO, Hongkyu , HAN, Moon Gyu , JANG, Eun Joo , PARK, Sujin , CHUNG, Dae Young
摘要： A light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and an electron auxiliary layer disposed between the emission layer and the second electrode, the electron auxiliary layer including nanoparticles and a small molecule organic compound and a display device including the same. The nanoparticles include a metal oxide including zinc, and an electron mobility of the small molecule organic compound is less than an electron mobility of the nanoparticles.
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公开(公告)号：EP3920251A2
公开(公告)日：2021-12-08
申请号：EP21172213.7
申请日：2021-05-05
发明人： CHUNG, Dae Young , SEO, Hongkyu , LEE, Yeonkyung , JANG, Eun Joo
摘要： Discloses are a quantum dot device including an anode disposed on the substrate and including a reflective layer, a hole auxiliary layer disposed on the anode and including a hole injection layer, a hole transport layer, or a combination thereof, a quantum dot layer disposed on the hole auxiliary layer and including quantum dots, an electron auxiliary layer disposed on the quantum dot layer, and a cathode disposed on the electron auxiliary layer and the cathode being a light-transmitting electrode capable of transmitting at least a portion of light emitted from the quantum dot layer, wherein the quantum dot layer is configured to emit light of a first wavelength spectrum that is one of a blue wavelength spectrum, a green wavelength spectrum, and a red wavelength spectrum, the hole auxiliary layer has a thickness in which a resonant wavelength of the quantum dot device falls within the first wavelength spectrum, an peak emission wavelength of the quantum dot layer and an peak emission wavelength of the light passing through the cathode belong to the first wavelength spectrum in common, and a full width at half maximum (FWHM) of the emission spectrum of light passing through the cathode is narrower than that of the emission spectrum of the quantum dot layer, and a quantum dot display device including the same.
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公开(公告)号：EP3597724B1
公开(公告)日：2020-11-11
申请号：EP19186551.8
申请日：2019-07-16
发明人： SEO, Hongkyu , HAN, Moon Gyu , JANG, Eun Joo , PARK, Sujin , CHUNG, Dae Young
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公开(公告)号：EP3613826A1
公开(公告)日：2020-02-26
申请号：EP19193423.1
申请日：2019-08-23
发明人： CHUNG, Dae Young , KIM, Kwanghee , SEO, Hongkyu , JANG, Eun Joo , CHO, Oul , KIM, Tae Hyung , WON, Yuho , LEE, Heejae
摘要： A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
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公开(公告)号：EP3920251A3
公开(公告)日：2022-03-16
申请号：EP21172213.7
申请日：2021-05-05
发明人： CHUNG, Dae Young , SEO, Hongkyu , LEE, Yeonkyung , JANG, Eun Joo
摘要： Discloses are a quantum dot device including an anode disposed on the substrate and including a reflective layer, a hole auxiliary layer disposed on the anode and including a hole injection layer, a hole transport layer, or a combination thereof, a quantum dot layer disposed on the hole auxiliary layer and including quantum dots, an electron auxiliary layer disposed on the quantum dot layer, and a cathode disposed on the electron auxiliary layer and the cathode being a light-transmitting electrode capable of transmitting at least a portion of light emitted from the quantum dot layer, wherein the quantum dot layer is configured to emit light of a first wavelength spectrum that is one of a blue wavelength spectrum, a green wavelength spectrum, and a red wavelength spectrum, the hole auxiliary layer has a thickness in which a resonant wavelength of the quantum dot device falls within the first wavelength spectrum, an peak emission wavelength of the quantum dot layer and an peak emission wavelength of the light passing through the cathode belong to the first wavelength spectrum in common, and a full width at half maximum (FWHM) of the emission spectrum of light passing through the cathode is narrower than that of the emission spectrum of the quantum dot layer, and a quantum dot display device including the same.
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公开(公告)号：EP3544074A3
公开(公告)日：2019-11-06
申请号：EP19163844.4
申请日：2019-03-19
发明人： CHUNG, Dae Young , HAN, Moon Gyu , CHO, Oul , KIM, Tae Hyung , PARK, Sujin , SEO, Hongkyu , JANG, Eun Joo
IPC分类号： H01L51/50
摘要： An electroluminescent device (10) including a first electrode (110), a hole transport layer (130) disposed on the first electrode, a first emission layer (140) disposed on the hole transport layer, the first emission layer including a first light emitting particle (141) on which a first ligand having a hole transporting property is attached, a second emission layer (150) disposed on the first emission layer, the second emission layer including a second light emitting particle (151) on which a second ligand having an electron transporting property is attached, an electron transport layer (160) disposed on the second emission layer, and a second electrode (170) disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.
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公开(公告)号：EP3537492A1
公开(公告)日：2019-09-11
申请号：EP19161675.4
申请日：2019-03-08
发明人： SEO, Hongkyu , JANG, Eun Joo , HAN, Moon Gyu , KIM, Tae Ho , CHUNG, Dae Young
IPC分类号： H01L51/50
摘要： A quantum dot device including an anode; a cathode disposed substantially opposite to the anode; a hole injection layer disposed on the anode between the anode and the cathode; a hole transport layer disposed on the hole injection layer between the hole injection layer and the cathode; and a quantum dot layer disposed on the hole transport layer between the hole transport layer and the cathode, wherein the quantum dot layer includes a plurality of quantum dots, wherein the hole transport layer includes a hole transport material and an electron transport material, and wherein a lowest unoccupied molecular orbital (LUMO) energy level of the electron transport material and a lowest unoccupied molecular orbital (LUMO) energy level of the quantum dot layer is about 0.5 electron volts or less.
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10.发明公开
公开(公告)号：EP3933007A1
公开(公告)日：2022-01-05
申请号：EP21182445.3
申请日：2021-06-29
发明人： SEO, Hongkyu , KIM, Kwanghee , JANG, Eun Joo , YOON, Won Sik , KIM, Tae Hyung , KIM, Tae Ho
摘要： A light emitting device, method of manufacturing the light emitting device, and display device including the light emitting device are disclosed. The light emitting device includes a first electrode and a second electrode each having a surface opposite the other, a light emitting layer including quantum dots that is disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the light emitting layer and the second electrode, wherein the electron auxiliary layer includes metal oxide nanoparticles including an anion of an organic acid bound to a surface of the metal oxide nanoparticle.
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