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1
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.
2
US10732458B2
Backlight unit and liquid crystal display device including the same
Publication/Patent Number: US10732458B2 Publication Date: 2020-08-04 Application Number: 15/887,015 Filing Date: 2018-02-02 Inventor: Jang, Eun-joo   Kang, Hyun-a   Cho oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G02F1/13357 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.
3
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.
4
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.
5
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
6
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.
7
US10627672B2
LED package, backlight unit and illumination device including same, and liquid crystal display including backlight unit
Publication/Patent Number: US10627672B2 Publication Date: 2020-04-21 Application Number: 15/271,902 Filing Date: 2016-09-21 Inventor: Jang, Eun Joo   Kang, Hyun A   Jun, Shin Ae   Cho oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G02F1/1335 Abstract: A light emitting diode (LED) package includes: an LED; a stack structure including a light-scattering structure spaced apart from the LED, and a light conversion layer disposed on at least one surface selected from an inner surface and an outer surface of the light-scattering structure and configured to convert light emitted from the LED into white light, wherein the light conversion layer includes a semiconductor nanocrystal; and an organic barrier layer disposed on a surface of the light conversion layer.
8
US2020208011A1
BARRIER FILMS AND QUANTUM DOT POLYMER COMPOSITE ARTICLES INCLUDING THE SAME
Publication/Patent Number: US2020208011A1 Publication Date: 2020-07-02 Application Number: 16/812,447 Filing Date: 2020-03-09 Inventor: Kikuchi, Tomoyuki   Jang, Eunjoo   Kang, Hyun A   Won, Nayoun   Cho oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: C09D181/00 Abstract: A barrier film comprising: a substrate; a first layer disposed on the substrate and comprising an oxidation product of polysilazane; and a second layer disposed directly on the first layer and comprising a thiol-ene polymer, wherein the polysilazane comprises a repeating unit represented by Chemical Formula 1, wherein R1 and R2 are each independently hydrogen, an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an alkylsilyl group, an alkylamino group, an alkoxy group, or an aromatic hydrocarbon group, and wherein the thiol-ene polymer is 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.
9
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.
10
US10854836B2
Light emitting device, method of manufacturing same and display device including same
Publication/Patent Number: US10854836B2 Publication Date: 2020-12-01 Application Number: 16/530,253 Filing Date: 2019-08-02 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.
11
US2020411784A1
DISPLAY DEVICE
Publication/Patent Number: US2020411784A1 Publication Date: 2020-12-31 Application Number: 16/910,369 Filing Date: 2020-06-24 Inventor: Jang, Hyo Sook   Kim, Tae Hyung   Jang, Eun Joo   Cho oul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 Abstract: A display device including a light source; and a quantum dot emission layer disposed on the light source, wherein the quantum dot emission layer includes a first emission layer disposed in a red pixel of the display device, and a second emission layer disposed in a green pixel of the display device, the light source includes a first portion configured to supply a first incident light to the first emission layer, a second portion configured to supply a second incident light to the second emission layer, and a third portion configured to supply a third light to a blue pixel of the display device, the first emission layer includes red light emitting quantum dots and the second emission layer includes green light emitting quantum dots, and each of the first portion, the second portion, and the third portion comprises a layer comprising blue light emitting quantum dots.
12
US10585226B2
Light conversion device, manufacturing method thereof, light source module including light conversion device and backlight unit including the same
Publication/Patent Number: US10585226B2 Publication Date: 2020-03-10 Application Number: 15/471,033 Filing Date: 2017-03-28 Inventor: Cho oul   Jang, Eun Joo   Kang, Hyun A   Kim, Tae Hyung   Lee, Jeong Hee   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: F21V8/00 Abstract: A light conversion device includes a frame through which incident light is received from a light source and converted light is emitted from the light conversion device, the frame including: an opening through which light of a first color is received from the light source and from which light of a second color is emitted from the light conversion device, and a wall which surrounds the opening, a substrate in the opening and supported by the wall, a light conversion layer which is disposed on the substrate and receives the light of the first color from the light source, the light conversion layer including a light converting particle which converts the light of the first color to the light of the second color, a first inorganic layer disposed on the light conversion layer, and a first organic layer disposed on the first inorganic layer.
13
EP3605622A1
LIGHT EMITTING DEVICE, METHOD OF MANUFACTURING SAME AND DISPLAY DEVICE INCLUDING SAME
Publication/Patent Number: EP3605622A1 Publication Date: 2020-02-05 Application Number: 19189798.2 Filing Date: 2019-08-02 Inventor: Kim, Tae Ho   Yoon, Won Sik   Lee, Jeong Hee   Jang, Eun Joo   Cho oul   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L33/56 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.
14
US2020044173A1
LIGHT EMITTING DEVICE, METHOD OF MANUFACTURING SAME AND DISPLAY DEVICE INCLUDING SAME
Publication/Patent Number: US2020044173A1 Publication Date: 2020-02-06 Application Number: 16/530,253 Filing Date: 2019-08-02 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.
15
US202044173A1
LIGHT EMITTING DEVICE, METHOD OF MANUFACTURING SAME AND DISPLAY DEVICE INCLUDING SAME
Publication/Patent Number: US202044173A1 Publication Date: 2020-02-06 Application Number: 20/191,653 Filing Date: 2019-08-02 Inventor: Kim, Tae Ho   Lee, Jeong Hee   Jang, Eun Joo   Cho oul   Yoon, Won Sik   Assignee: Samsung Electronics Co., Ltd.   IPC: H01L51/56 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.
16
US2020357990A1
RESISTIVE MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAME AND ELECTRONIC DEVICE
Publication/Patent Number: US2020357990A1 Publication Date: 2020-11-12 Application Number: 16/701,293 Filing Date: 2019-12-03 Inventor: Kim, Kwanghee   Lee, Heejae   Cho oul   Kim, Tae Hyung   Jang, Eun Joo   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L45/00 Abstract: A resistive memory device including a first electrode and a second electrode facing each other and a variable resistance layer disposed between the first electrode and the second electrode, wherein the variable resistance layer includes Cd-free quantum dots (Cd-free quantum dots) and at least a portion of the Cd-free quantum dots include a Cd-free quantum dot including a halide anion on a surface of the Cd-free quantum dot, a method of manufacturing the same and an electronic device.
17
US10673004B2
Electroluminescent display device
Publication/Patent Number: US10673004B2 Publication Date: 2020-06-02 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: C09K11/88 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%.
18
US2020083470A1
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Publication/Patent Number: US2020083470A1 Publication Date: 2020-03-12 Application Number: 16/549,472 Filing Date: 2019-08-23 Inventor: Chung, Dae Young   Kim, Kwanghee   Seo, Hongkyu   Jang, Eun Joo   Cho oul   Kim, Tae Hyung   Won, Yuho   Lee, Hee Jae   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L51/50 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.
19
US10615356B2
Electric device with quantum dot emissive layer, and display device comprising the same
Publication/Patent Number: US10615356B2 Publication Date: 2020-04-07 Application Number: 15/483,651 Filing Date: 2017-04-10 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: H01L51/52 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.
20
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.