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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1
EP3490020B1
QUANTUM DOT DEVICE AND ELECTRONIC DEVICE
Publication/Patent Number: EP3490020B1 Publication Date: 2021-01-13 Application Number: 18195136.9 Filing Date: 2018-09-18 Inventor: Seo, Hongku   Jang, Eun Joo   Chung, Dae Young   Kim, Tae Ho   Lee, Sang Jin   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/50
2
US2021040388A1
ELECTRONIC DEVICE INCLUDING QUANTUM DOTS
Publication/Patent Number: US2021040388A1 Publication Date: 2021-02-11 Application Number: 17/083,470 Filing Date: 2020-10-29 Inventor: Won, Yuho   Kwon, Ha Il   Jang, Eun Joo   Chang, Jaejun   Chung, Dae Young   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09K11/88 Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other, and an emissive layer disposed between the first electrode and the second electrode and including the quantum dots. The quantum dots include a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dots do not include cadmium. The electroluminescent device has an external quantum efficiency of greater than or equal to about 9% and a maximum brightness of greater than or equal to about 10,000 candelas per square meter (cd/m2).
3
US2021057664A1
LIGHT EMITTING DEVICE, METHOD OF MANUFACTURING SAME AND DISPLAY DEVICE INCLUDING SAME
Publication/Patent Number: US2021057664A1 Publication Date: 2021-02-25 Application Number: 17/083,832 Filing Date: 2020-10-29 Inventor: Kim, Tae Ho   Yoon, Won Sik   Lee, Jeong Hee   Jang, Eun Joo   Cho, Oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.
4
US10923668B2
Electroluminescent device, and display device comprising thereof
Publication/Patent Number: US10923668B2 Publication Date: 2021-02-16 Application Number: 17/005,392 Filing Date: 2020-08-28 Inventor: Park, Kun Su   Kim, Kwanghee   Kim, Tae Ho   Jang, Eun Joo   Yoon, Won Sik   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/00 Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same. The electroluminescent device includes a first electrode, a hole transport layer disposed on the first electrode, an emission layer disposed on the hole transport layer and including light emitting particles, an electron transport layer disposed on the emission layer and including nanoparticles having electron transport capability, and a second electrode disposed on the electron transport layer, wherein at least a portion of the nanoparticles having electron transport capability include an inorganic oxide core represented by Chemical Formula 1, and a metal-organic compound chemically bound to the surface of the inorganic oxide core. MxOy  Chemical Formula 1
5
US2021005834A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2021005834A1 Publication Date: 2021-01-07 Application Number: 16/921,188 Filing Date: 2020-07-06 Inventor: Lee, Heejae   Kim, Sung Woo   Jang, Eun Joo   Chung, Dae Young   Han, Moon Gyu   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A light emitting device includes: a first electrode and a second electrode with a surface facing the first electrode; an emission layer disposed between the first electrode and the second electrode and including a quantum dot (e.g., a plurality of quantum dots); and an electron auxiliary layer disposed between the emission layer and the second electrode. The electron auxiliary layer includes a first layer including a first metal oxide, and a second layer disposed on the first layer and including a second metal oxide. A roughness of an interface between the second layer and the second electrode is less than about 10 nm as determined by an electron microscopy analysis. An absolute value of a difference between a conduction band edge energy level of the second layer and a work function of the second electrode may be less than or equal to about 0.5 eV, and a conduction band edge energy level of the first layer may be less than the conduction band edge energy level of the second layer.
6
US10920134B2
Method for preparing multilayer of nanocrystals, and organic-inorganic hybrid electroluminescence device comprising multilayer of nanocrystals prepared by the method
Publication/Patent Number: US10920134B2 Publication Date: 2021-02-16 Application Number: 15/463,721 Filing Date: 2017-03-20 Inventor: Jang, Eun Joo   Jun, Shin Ae   Lee, Sung Hun   Park, Jong Jin   Choi, Seong Jae   Ahn, Tae Kyung   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09K11/02 Abstract: Disclosed herein is a method for preparing a multilayer of nanocrystals. The method comprises the steps of (i) coating nanocrystals surface-coordinated by a photosensitive compound, or a mixed solution of a photosensitive compound and nanocrystals surface-coordinated by a material miscible with the photosensitive compound, on a substrate, drying the coated substrate, and exposing the dried substrate to UV light to form a first monolayer of nanocrystals, and (ii) repeating the procedure of step (i) to form one or more monolayers of nanocrystals on the first monolayer of nanocrystals.
7
US2021040386A1
SEMICONDUCTOR NANOCRYSTAL PARTICLE AND PRODUCTION METHODS THEREOF
Publication/Patent Number: US2021040386A1 Publication Date: 2021-02-11 Application Number: 16/986,384 Filing Date: 2020-08-06 Inventor: Min, Jihyun   Jang, Eun Joo   Sargent, Edward H.   Jang, Hyo Sook   Saidaminov, Makhsud I.   Hoogland, Sjoerd   Jain, Ankit   Johnston, Andrew   Voznyy, Oleksandr   Assignee: SAMSUNG ELECTRONICS CO., LTD.   The Governing Council of the University of Toronto   IPC: C09K11/75 Abstract: A semiconductor nanocrystal particle represented by Chemical Formula 1 and having a full width at half maximum (FWHM) of less than or equal to about 30 nanometers (nm) in the emission wavelength spectrum is provided: AxA′(3+α−x)D(2+β)E(9+γ).   Chemical Formula 1 In Chemical Formula 1, A is a first metal including Rb, Cs, or a combination thereof, A′ is an organic substance derived from an ammonium salt, an organic material derived from an organic ligand, or an organic material including a combination thereof, D is a second metal including Sb, Bi, or a combination thereof E is Cl, Br, I, or a combination thereof, 1<x≤3, −1<α<1, 3+α−x>0, −1<β<1, and −1<γ<1.
8
US2020135967A1
QUANTUM DOT DISPLAY DEVICE
Publication/Patent Number: US2020135967A1 Publication Date: 2020-04-30 Application Number: 16/658,604 Filing Date: 2019-10-21 Inventor: Cho, Oul   Jang, Eun Joo   Kim, Tae Hyung   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L33/06 Abstract: A quantum dot display device includes a substrate, a quantum dot diode disposed on the substrate and including a first electrode, a second electrode, and a quantum dot layer between the first electrode and the second electrode, and an encapsulation film disposed on a surface of the quantum dot diode, wherein a water vapor transmission rate of the encapsulation film is about 0.001 to about 1 gram per square meter per day at 1 atmosphere of pressure.
9
US2020119296A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2020119296A1 Publication Date: 2020-04-16 Application Number: 16/597,891 Filing Date: 2019-10-10 Inventor: Cho, Oul   Kim, Kwanghee   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A light emitting device including a first electrode and a second electrode facing each other, a quantum dot emission film disposed between the first electrode and the second electrode, and a charge auxiliary layer disposed between the emission film and the first electrode, between the emission film and the second electrode, or between the emission film and the first electrode and between the emission film and the second electrode, wherein the quantum dot emission film includes a first surface facing the charge auxiliary layer and an opposite second surface. A manufacturing method of making the light emitting device, and a display device including the same.
10
US10556412B2
Composition for adhesion layer of gas barrier adhesive sheet, gas barrier adhesive sheet, and optical sheet having gas barrier adhesive sheet
Publication/Patent Number: US10556412B2 Publication Date: 2020-02-11 Application Number: 14/815,380 Filing Date: 2015-07-31 Inventor: Koh, Haeng Deog   Jang, Eun Joo   Kang, Hyun A   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09J183/08 Abstract: A composition for an adhesion layer of a gas barrier adhesive sheet including a gas blocking film and an adhesion layer including at least one compound selected from a compound represented by Chemical Formula 1, at least one compound selected from a compound represented by Chemical Formula 2, and optionally, a compound represented by Chemical Formula 3. wherein groups and variables in Chemical Formulae 1 to 3 are the same as described in the specification.
11
US2020111933A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2020111933A1 Publication Date: 2020-04-09 Application Number: 16/593,124 Filing Date: 2019-10-04 Inventor: Chung, Dae Young   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L33/14 Abstract: An electroluminescent device including an anode and a cathode facing each other, an emission layer disposed between the anode and the cathode, the emission layer including quantum dots, a hole auxiliary layer disposed between the emission layer and the anode and an electron auxiliary layer disposed between the emission layer and the cathode, wherein the electroluminescent device is configured such that electrons are dominant in the emission layer and a logarithmic value (log (HT/ET)) of a hole transport capability (HT) relative to an electron transport capability (ET) is less than or equal to about −1, or the electroluminescent device is configured such that holes are dominant in the emission layer and the logarithmic log value (log (HT/ET)) of the hole transport capability (HT) relative to the electron transport capability (ET) is greater than or equal to about 0.5.
12
US2020332188A1
NANOPLATELET
Publication/Patent Number: US2020332188A1 Publication Date: 2020-10-22 Application Number: 16/850,119 Filing Date: 2020-04-16 Inventor: Min, Jihyun   Jang, Eun Joo   Kim, Yong Wook   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09K11/88 Abstract: A nanoplatelet including a two-dimensional template including a first semiconductor nanocrystal; and a first shell including a second semiconductor nanocrystal disposed on a surface of the two-dimensional template, the second semiconductor nanocrystal having a composition different from the first semiconductor nanocrystal, wherein the second semiconductor nanocrystal includes a Group III-V compound, and wherein the nanoplatelet does not include cadmium.
13
US10866463B2
Strip, and backlight unit and liquid crystal display including the same
Publication/Patent Number: US10866463B2 Publication Date: 2020-12-15 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: G02F1/13357 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.
14
EP3739019A1
NANOPLATELET
Publication/Patent Number: EP3739019A1 Publication Date: 2020-11-18 Application Number: 20169817.2 Filing Date: 2020-04-16 Inventor: Min, Jihyun   Jang, Eun Joo   Kim, Yong Wook   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/02 Abstract: A nanoplatelet including a two-dimensional template including a first semiconductor nanocrystal; and a first shell including a second semiconductor nanocrystal disposed on a surface of the two-dimensional template, the second semiconductor nanocrystal having a composition different from the first semiconductor nanocrystal, wherein the second semiconductor nanocrystal includes a Group III-V compound, and wherein the nanoplatelet does not include cadmium.
15
EP2988165B1
PHOTOCONVERSION ARRANGEMENT,BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
Publication/Patent Number: EP2988165B1 Publication Date: 2020-04-29 Application Number: 15181674.1 Filing Date: 2015-08-20 Inventor: Cho, Oul   Kang, Hyun A.   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: G02F1/1335
16
EP3686662A1
PHOTOCONVERSION ELEMENT WITH A STRIP, BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
Publication/Patent Number: EP3686662A1 Publication Date: 2020-07-29 Application Number: 20164512.4 Filing Date: 2015-08-20 Inventor: Cho, Oul   Kang, Hyun A.   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: G02F1/13357 Abstract: Disclosed is a mold frame including a 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.
17
EP3696245A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3696245A1 Publication Date: 2020-08-19 Application Number: 20157462.1 Filing Date: 2020-02-14 Inventor: Kim, Tae Ho   Yoon, Won Sik   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: C09K11/02 Abstract: 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, wherein the emission layer includes a plurality of quantum dots and metal carboxylate having at least one hydrocarbon group of at least one carbon atoms, and the plurality of quantum dots includes a first organic ligand, and does not include cadmium and lead, and a method of manufacturing the same.
18
US2020192016A1
QUANTUM DOTS, PRODUCTION METHODS THEREOF, AND ELECTRONIC DEVICES INCLUDING THE SAME
Publication/Patent Number: US2020192016A1 Publication Date: 2020-06-18 Application Number: 16/796,207 Filing Date: 2020-02-20 Inventor: Kim, Tae Hyung   Min, Jihyun   Kim, Yongwook   Jang, Eun Joo   Assignee: Samsung Electronics Co., Ltd.   IPC: F21V8/00 Abstract: An electronic device includes, a light source having a peak emission at a wavelength between about 440 nm to about 480 nm; and a photoconversion layer disposed on the light source, wherein the photoconversion layer includes a first quantum dot which emits red light and a second quantum dot which emits green light, wherein at least one of the first quantum dot and the second quantum dot has a perovskite crystal structure and includes a compound represented by Chemical Formula 1: AB′X3αα  Chemical Formula 1 wherein A is a Group IA metal, NR4+, or a combination thereof, B′ is a Group IVA metal, X is a halogen, BF4−, or a combination thereof, and α is 0 to 3.
19
US10585228B2
Quantum dots, production methods thereof, and electronic devices including the same
Publication/Patent Number: US10585228B2 Publication Date: 2020-03-10 Application Number: 15/393,632 Filing Date: 2016-12-29 Inventor: Kim, Tae Hyung   Min, Jihyun   Kim, Yongwook   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G02F1/1335 Abstract: An electronic device includes, a light source having a peak emission at a wavelength between about 440 nm to about 480 nm; and a photoconversion layer disposed on the light source, wherein the photoconversion layer includes a first quantum dot which emits red light and a second quantum dot which emits green light, wherein at least one of the first quantum dot and the second quantum dot has a perovskite crystal structure and includes a compound represented by Chemical Formula 1: AB′X3+α  Chemical Formula 1 wherein A is a Group IA metal, NR4+, or a combination thereof, B′ is a Group IVA metal, X is a halogen, BF4−, or a combination thereof, and α is 0 to 3.
20
US10547018B2
Electroluminescent device, and display device comprising the same
Publication/Patent Number: US10547018B2 Publication Date: 2020-01-28 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: H01L33/00 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.
Total 42 pages