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21
US2020194703A1
ELECTRIC DEVICE, AND DISPLAY DEVICE COMPRISING THE SAME
Publication/Patent Number: US2020194703A1 Publication Date: 2020-06-18 Application Number: 16/797,380 Filing Date: 2020-02-21 Inventor: Chung, Dae Young   Jang, Eun Joo   Cho, Oul   Kang, Hyun A   Kim, Tae Hyung   Woo, Yun Sung   Lee, Jeong Hee   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 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.
22
US2020266373A1
ELECTROLUMINESCENT DISPLAY DEVICE
Publication/Patent Number: US2020266373A1 Publication Date: 2020-08-20 Application Number: 16/863,164 Filing Date: 2020-04-30 Inventor: Kim, Tae Hyung   Jang, Eun Joo   Chung, Dae Young   Kim, Yong Wook   Won, Yuho   Cho, Oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 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%.
23
EP3613826A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3613826A1 Publication Date: 2020-02-26 Application Number: 19193423.1 Filing Date: 2019-08-23 Inventor: Chung, Dae Young   Kim, Kwanghee   Seo, Hongkyu   Jang, Eun Joo   Cho, Oul   Kim, Tae Hyung   Won, Yuho   Lee, Heejae   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/02 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.
24
US10559726B2
Layered structures and quantum dot sheets and electronic devices including the same
Publication/Patent Number: US10559726B2 Publication Date: 2020-02-11 Application Number: 15/581,861 Filing Date: 2017-04-28 Inventor: Kang, Hyun A   Won, Nayoun   Jang, Eun Joo   Kwon, Ha Il   Lee, Jeong Hee   Cho, Oul   Kikuchi, Tomoyuki   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09K11/02 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.
25
US10808169B2
Methods of grinding semiconductor nanocrystal polymer composite particles
Publication/Patent Number: US10808169B2 Publication Date: 2020-10-20 Application Number: 15/644,984 Filing Date: 2017-07-10 Inventor: Lee, Jeong Hee   Kang, Hyun A   Jang, Eun Joo   Lee, Sang Eui   Jun, Shin Ae   Cho, Oul   Kim, Tae Gon   Kim, Tae Hyung   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09K11/02 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.
26
US10386678B2
Strip, and backlight unit and liquid crystal display including the same
Publication/Patent Number: US10386678B2 Publication Date: 2019-08-20 Application Number: 14/833,722 Filing Date: 2015-08-24 Inventor: Cho, Oul   Kang, Hyun A   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G02F1/1333 Abstract: Disclosed is a mold frame including a first guide defining the position of a photoconversion layer and at least one of optical sheets disposed on the photoconversion layer, a backlight unit and a liquid crystal display including the same, and the like. The first guide includes a first surface facing the liquid crystal panel, a second surface opposite to the first surface, and a third surface extended from the edge of the first surface to the edge of second surface, wherein at least a portion of the second surface is provided with a strip, and wherein the strip is extended along the edge of the optical sheet or the photoconversion layer to overlap a region adjacent to the edge of the top surface of the optical sheet or adjacent to the edge of the top surface of the photoconversion layer.
27
US2019369443A1
STRIP, AND BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
Publication/Patent Number: US2019369443A1 Publication Date: 2019-12-05 Application Number: 16/543,118 Filing Date: 2019-08-16 Inventor: Cho, Oul   Kang, Hyun A   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G02F1/1335 Abstract: Disclosed is a mold frame including a first guide defining the position of a photoconversion layer and at least one of optical sheets disposed on the photoconversion layer, a backlight unit and a liquid crystal display including the same, and the like. The first guide includes a first surface facing the liquid crystal panel, a second surface opposite to the first surface, and a third surface extended from the edge of the first surface to the edge of second surface, wherein at least a portion of the second surface is provided with a strip, and wherein the strip is extended along the edge of the optical sheet or the photoconversion layer to overlap a region adjacent to the edge of the top surface of the optical sheet or adjacent to the edge of the top surface of the photoconversion layer.
28
US2019189945A1
ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THE SAME
Publication/Patent Number: US2019189945A1 Publication Date: 2019-06-20 Application Number: 15/970,296 Filing Date: 2018-05-03 Inventor: Chung, Dae Young   Kang, Hyun A   Jang, Eun Joo   Cho, Oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: An electroluminescent device and a display device including the same are provided. The electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including at least two light emitting particles; a hole transport layer disposed between the first electrode and the emission layer; and an electron transport layer disposed between the emission layer and the second electrode and including at least two different organic semiconductor compounds, wherein a first root-mean surface roughness of a surface of the electron transport layer obtained using a laser interferometer is in a range from about 0.5 nanometers to about 3 nanometers.
29
KR20190074153A
ELECTROLUMINESCENT DEVICE AND DISPLAY DEVICE COMPRISING THEREOF
Publication/Patent Number: KR20190074153A Publication Date: 2019-06-27 Application Number: 20170175567 Filing Date: 2017-12-19 Inventor: Kang, Hyun A   Cho, Oul   Chung, Dae Young   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/00 Abstract: The present invention provides an electroluminescent element and a display device including the same. The electroluminescent element comprises: a first electrode and a second electrode facing each other; a luminescent layer disposed between the first electrode and the second electrode and including at least two luminescent particles; a hole transporting layer disposed between the first electrode and the luminescent layer; and an electron transporting layer disposed between the luminescent layer and the second electrode and containing at least two organic semiconductor compounds different from each other. A first square mean roughness of a surface of the electron transporting layer obtained by using a Zygo laser interferometer is 0.5 to 3.0.
30
EP3244458B1
LIGHT CONVERSION DEVICE, MANUFACTURING METHOD THEREOF, LIGHT SOURCE MODULE INCLUDING LIGHT CONVERSION DEVICE AND BACKLIGHT UNIT INCLUDING THE SAME
Publication/Patent Number: EP3244458B1 Publication Date: 2019-06-12 Application Number: 17168234.7 Filing Date: 2017-04-26 Inventor: Cho, Oul   Jang, Eun Joo   Kang, Hyun A.   Kim, Tae Hyung   Lee, Jeong Hee   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L33/50
31
KR20190123694A
LIGHT-EMITTING FILM PRODUCTION METHOD THEREOF AND A LIGHT EMITTING DEVICE INCLUDING THE SAME
Publication/Patent Number: KR20190123694A Publication Date: 2019-11-01 Application Number: 20190047284 Filing Date: 2019-04-23 Inventor: Jang, Eun Joo   Kim, Kwang Hee   Kim, Tae Hyung   Kim, Chan Su   Cho, Oul   Han, Moon Gyu   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L33/16 Abstract: 복수개의 양자점들을 포함하는 발광막과 이를 포함하는 전자 소자에 대한 것이다. 상기 복수개의 양자점들은 상기 발광막의 표면의 적어도 일부를 구성하고, 상기 복수개의 양자점들은 카드뮴 및 납을 포함하지 않고,상기 발광막의 상기 적어도 일부의 표면은, 상기 복수개의 양자점들에 결합되어 있는 금속 할라이드를 포함한다.
32
US2019326533A1
LIGHT-EMITTING FILM, PRODUCTION METHOD THEREOF, AND A LIGHT EMITTING DEVICE INCLUDING THE SAME
Publication/Patent Number: US2019326533A1 Publication Date: 2019-10-24 Application Number: 16/391,692 Filing Date: 2019-04-23 Inventor: Kim, Kwanghee   Cho, Oul   Kim, Chan Su   Kim, Tae Hyung   Jang, Eun Joo   Han, Moon Gyu   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A light emitting film including a plurality of quantum dots and an electronic device including the same. The plurality of quantum dots constitute at least a portion of a surface of the light emitting film, the plurality of quantum dots do not include cadmium, and the at least a portion of a surface of the light emitting film includes a metal halide bound to at least one quantum dot of the plurality of quantum dots.
33
KR20190110046A
ELECTROLUMINESCENT DEVICE AND DISPLAY DEVICE COMPRISING THEREOF
Publication/Patent Number: KR20190110046A Publication Date: 2019-09-27 Application Number: 20190030273 Filing Date: 2019-03-18 Inventor: Park, Su Jin   Han, Moon Gyu   Seo, Hong Kyu   Cho, Oul   Kim, Tae Hyung   Chung, Dae Young   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: 제1 전극과, 제1 전극 위에 위치한 정공 수송층과, 정공 수송층의 위에 위치하며, 정공 수송성을 갖는 제1 리간드가 부착되어 있는 제1 발광체 입자를 포함하는 제1 발광층과, 제1 발광층 위에 위치하며, 전자 수송성을 갖는 제2 리간드가 부착되어 있는 제2 발광체 입자를 포함하는 제2 발광층과, 제2 발광층 위에 위치하는 전자 수송층, 및 전자 수송층 위에 위치하는 제2 전극을 포함하며, 상기 제1 리간드의 용매에 대한 용해성과 상기 제2 리간드의 상기 용매에 대한 용해성은 서로 다른 전계 발광 소자 및 이를 포함하는 표시 장치가 제공된다.
34
US2019280233A1
SEMICONDUCTOR NANOCRYSTAL PARTICLES, PRODUCTION METHODS THEREOF, AND DEVICES INCLUDING THE SAME
Publication/Patent Number: US2019280233A1 Publication Date: 2019-09-12 Application Number: 16/298,357 Filing Date: 2019-03-11 Inventor: Kim, Tae Hyung   Kim, Sung Woo   Kim, Jin A   Won, Yuho   Lee, Jeong Hee   Jang, Eun Joo   Cho, Oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A quantum dot including a core including a first semiconductor nanocrystal including zinc, tellurium, and selenium and a semiconductor nanocrystal shell disposed on the core and including zinc, tellurium, selenium, and sulfur, a production method thereof, and an electronic device including the same. The quantum dot is free of cadmium, the quantum dot has a mole ratio of tellurium with respect to selenium of less than or equal to about 0.06:1, a photoluminescence peak wavelength of the quantum dot is greater than or equal to about 450 nm and less than or equal to about 470 nanometers (nm), and a full width at half maximum (FWHM) of a photoluminescence peak of the quantum dot is less than or equal to about 41 nm.
35
EP3486964A1
QUANTUM DOT DEVICE AND DISPLAY DEVICE
Publication/Patent Number: EP3486964A1 Publication Date: 2019-05-22 Application Number: 18202124.6 Filing Date: 2018-10-23 Inventor: Kim, Sung Woo   Kim, Tae Ho   Jang, Eun Joo   Seo, Hongkyu   Lee, Sang Jin   Chung, Dae Young   Cho, Oul   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/54 Abstract: A quantum dot device includes: a first electrode and a second electrode facing each other; a quantum dot layer between the first electrode and the second electrode, and an electron auxiliary layer between the quantum dot layer and the second electrode, the electron auxiliary layer including a first nanoparticle and a second nanoparticle which is larger than the first nanoparticle, wherein a work function of the first electrode is greater than a work function of the second electrode, and wherein a difference between a lowest unoccupied molecular orbital energy level of the quantum dot layer and a lowest unoccupied molecular orbital energy level of the electron auxiliary layer is less than 1.1 electronvolts.
36
EP3575379A1
LIGHT-EMITTING FILM, PRODUCTION METHOD THEREOF, AND A LIGHT EMITTING DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3575379A1 Publication Date: 2019-12-04 Application Number: 19170579.7 Filing Date: 2019-04-23 Inventor: Kim, Kwanghee   Cho, Oul   Kim, Chan Su   Kim, Tae Hyung   Jang, Eun Joo   Han, Moon Gyu   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/88 Abstract: A light emitting film including a plurality of quantum dots and an electronic device including the same. The plurality of quantum dots constitute at least a portion of a surface of the light emitting film, the plurality of quantum dots do not include cadmium, and the at least a portion of a surface of the light emitting film includes a metal halide bound to at least one quantum dot of the plurality of quantum dots.
37
US2019280231A1
ELECTROLUMINESCENT DISPLAY DEVICE
Publication/Patent Number: US2019280231A1 Publication Date: 2019-09-12 Application Number: 16/297,833 Filing Date: 2019-03-11 Inventor: Kim, Tae Hyung   Jang, Eun Joo   Chung, Dae Young   Kim, Yong Wook   Won, Yuho   Cho, Oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 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%.
38
EP3537853A1
ELECTROLUMINESCENT DISPLAY DEVICE
Publication/Patent Number: EP3537853A1 Publication Date: 2019-09-11 Application Number: 19161982.4 Filing Date: 2019-03-11 Inventor: Kim, Tae Hyung   Jang, Eun Joo   Chung, Dae Young   Kim, Yong Wook   Won, Yuho   Cho, Oul   Assignee: Samsung Electronics Co., Ltd.   IPC: H05B33/14 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 %.
39
EP3239197B1
LAYERED STRUCTURES AND QUANTUM DOT SHEETS AND ELECTRONIC DEVICES INCLUDING THE SAME
Publication/Patent Number: EP3239197B1 Publication Date: 2019-01-23 Application Number: 17168408.7 Filing Date: 2017-04-27 Inventor: Kang, Hyun A   Won, Nayoun   Jang, Eun Joo   Kwon, Ha Il   Lee, Jeong Hee   Cho, Oul   Kikuchi, Tomoyuki   Assignee: Samsung Electronics Co., Ltd.   IPC: C08F222/26
40
EP3544074A3
ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
Publication/Patent Number: EP3544074A3 Publication Date: 2019-11-06 Application Number: 19163844.4 Filing Date: 2019-03-19 Inventor: Chung, Dae Young   Han, Moon Gyu   Cho, Oul   Kim, Tae Hyung   Park, Sujin   Seo, Hongkyu   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/50 Abstract: 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.
Total 8 pages