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公开(公告)号：US11569469B2
公开(公告)日：2023-01-31
申请号：US17205015
申请日：2021-03-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dae Young Chung , Kwanghee Kim , Hongkyu Seo , Eun Joo Jang , Oul Cho , Tae Hyung Kim , Yuho Won , Hee Jae Lee
Abstract: 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：US10978660B2
公开(公告)日：2021-04-13
申请号：US16797380
申请日：2020-02-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dae Young Chung , Eun Joo Jang , Oul Cho , Hyun A Kang , Tae Hyung Kim , Yun Sung Woo , Jeong Hee Lee
Abstract: An electronic device includes a first electrode and a second electrode facing each other, an emission layer comprising a plurality of quantum dots, wherein the emission layer is disposed between the first electrode and the second electrode; a first charge auxiliary layer disposed between the first electrode and the emission layer; and an optical functional layer disposed on the second electrode on a side opposite the emission layer, wherein the first electrode includes a reflecting electrode, wherein the second electrode is a light-transmitting electrode, wherein a region between the optical functional layer and the first electrode comprises a microcavity structure, and a refractive index of the optical functional layer is greater than or equal to a refractive index of the second electrode.
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公开(公告)号：US10559726B2
公开(公告)日：2020-02-11
申请号：US15581861
申请日：2017-04-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyun A Kang , Nayoun Won , Eun Joo Jang , Ha Il Kwon , Jeong Hee Lee , Oul Cho , Tomoyuki Kikuchi
IPC: C09K11/02 , H01L33/50 , C08G75/045 , C08K3/34 , C08K3/36 , G02F1/13357 , G02F1/1335
Abstract: A layered structure having a first layer including a polymerization product of a monomer combination including a first monomer having at least two thiol groups at its terminal end and a second monomer having at least two carbon-carbon unsaturated bond-containing groups at its terminal end, wherein the first monomer includes a first thiol compound represented by Chemical Formula 1-1 including a thioglycolate moiety and a second thiol represented by Chemical Formula 1-2, and wherein the second monomer includes an ene compound represented by Chemical Formula 2: wherein in Chemical Formulae 1-1, 1-2, and 2, groups and variables are the same as described in the specification.
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公开(公告)号：US09701898B2
公开(公告)日：2017-07-11
申请号：US14453723
申请日：2014-08-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jeong Hee Lee , Hyun A Kang , Eun Joo Jang , Sang Eui Lee , Shin Ae Jun , Oul Cho , Tae Gon Kim , Tae Hyung Kim
CPC classification number: C09K11/025 , B24B1/00 , C09K11/70
Abstract: A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.
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公开(公告)号：US09606281B2
公开(公告)日：2017-03-28
申请号：US14010718
申请日：2013-08-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Eun-joo Jang , Hyun-a Kang , Oul Cho
IPC: G02F1/1335 , F21V8/00 , F21V9/16 , B82Y20/00
CPC classification number: G02F1/133606 , B82Y20/00 , F21V9/30 , G02B6/0003 , G02B6/005 , G02B6/0051 , G02B6/0068 , G02B6/0073 , G02F1/133603 , G02F1/133617 , G02F2001/133614 , G02F2202/36 , Y10S977/834
Abstract: A backlight unit for a liquid crystal display device including a liquid crystal panel, includes: a light source including a light-emitting diode (“ED”) which generates and emits light; and a light converting layer between the light source and the liquid crystal panel, spaced apart from the light source, and converting the light from the light source into white light and emitting the white light toward the liquid crystal panel. The light converting layer includes: semiconductor nanocrystals, and a barrier material which restricts penetration of moisture or oxygen.
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Patent Agency Ranking
公开(公告)号：US11737301B2
公开(公告)日：2023-08-22
申请号：US17226158
申请日：2021-04-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dae Young Chung , Moon Gyu Han , Oul Cho , Tae Hyung Kim , Sujin Park , Hongkyu Seo , Eun Joo Jang
CPC classification number: H10K50/19 , C09K11/025 , C09K11/06 , H10K50/115 , H10K71/00 , H10K71/15 , C09K2211/10 , H10K85/111 , H10K85/115 , H10K85/1135 , H10K85/626
Abstract: An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand and a second ligand having a hole transporting property are attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a first ligand and a third ligand having an electron transporting property are attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the second ligand in a solvent is different than a solubility of the third ligand in the solvent and a display device including the same.
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公开(公告)号：US10978658B2
公开(公告)日：2021-04-13
申请号：US16549472
申请日：2019-08-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dae Young Chung , Kwanghee Kim , Hongkyu Seo , Eun Joo Jang , Oul Cho , Tae Hyung Kim , Yuho Won , Hee Jae Lee
Abstract: 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：US10961446B2
公开(公告)日：2021-03-30
申请号：US16297965
申请日：2019-03-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kwanghee Kim , Jaejun Chang , Oul Cho , Tae Hyung Kim , Sang Jin Lee , Eun Joo Jang , Young-soo Jeong , Moon Gyu Han
Abstract: A quantum dot, and a light emitting device including the same is provided. The quantum dot includes a semiconductor nanocrystal and an organic ligand bound to the surface of the semiconductor nanocrystal, wherein the organic ligand includes a first ligand derived from a first thiol compound including a C12 or more aliphatic hydrocarbon group, and a second ligand derived from a second thiol compound including a C8 or less aliphatic hydrocarbon group.
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公开(公告)号：US10732458B2
公开(公告)日：2020-08-04
申请号：US15887015
申请日：2018-02-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Eun-joo Jang , Hyun-a Kang , Oul Cho
IPC: G02F1/13357 , F21V8/00 , F21V9/30 , B82Y20/00
Abstract: A backlight unit for a liquid crystal display device including a liquid crystal panel, includes: a light source including a light-emitting diode (“ED”) which generates and emits light; and a light converting layer between the light source and the liquid crystal panel, spaced apart from the light source, and converting the light from the light source into white light and emitting the white light toward the liquid crystal panel. The light converting layer includes: semiconductor nanocrystals, and a barrier material which restricts penetration of moisture or oxygen.
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公开(公告)号：US10673004B2
公开(公告)日：2020-06-02
申请号：US16297833
申请日：2019-03-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tae Hyung Kim , Eun Joo Jang , Dae Young Chung , Yong Wook Kim , Yuho Won , Oul Cho
Abstract: An electroluminescence display device, including a first electrode and a second electrode facing each other; a quantum dot emission layer disposed between the first electrode and the second electrode, the quantum dot emission layer including a plurality of quantum dots and not including cadmium, wherein the quantum dot emission layer includes a red emission layer disposed in a red pixel, a green emission layer disposed in a green pixel, and a blue emission layer disposed in a blue pixel, wherein the device has color reproducibility according to a DCI standard of greater than or equal to about 89%.
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