Patents by Inventor Heechang YOON
Heechang YOON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240290798Abstract: A mother substrate for a display panel includes display panels disposed on a substrate, protective films disposed on the substrate and covering the display panels, and anti-peeling patterns disposed on the substrate and adjacent to the protective films, respectively.Type: ApplicationFiled: February 23, 2024Publication date: August 29, 2024Inventors: HEECHANG YOON, SEUNGWOOK KWON, SANGTAE AHN, JINHO HYUN, SANGYEON HWANG, SEUNGYONG SONG, SEUNG-YEON CHAE
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Publication number: 20240284700Abstract: A light-emitting device and an apparatus including the same include a first electrode, a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes m emission units and (m?1) charge generating units, each of the charge generating units being between the emission units that are adjacent to each other, m is a natural number of 2 or greater, at least one of the (m?1) charge generating units includes an n-type charge generating layer, a p-type charge generating layer, and a p-type hole injection layer, wherein the n-type charge generating layer includes an n-type organic compound and a metal material, and wherein the p-type charge generating layer and the p-type hole injection layer each independently include an inorganic semiconductor material.Type: ApplicationFiled: February 18, 2024Publication date: August 22, 2024Inventors: Dongchan Kim, Jiyoung Moon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Haemyeong Lee, Myungsuk Han, Jihwan Yoon, Jonghyuk Lee, Yoonhyeung Cho
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Publication number: 20240251639Abstract: A manufacturing method of a display device includes: forming a display panel on a substrate; forming a protective layer on the display panel; forming protrusions and depressions on a surface of the protective layer by performing a surface treatment on the surface of the protective layer; attaching an adhesive layer and an acid resistant film on the protective layer; etching the substrate; and removing the adhesive layer and the acid resistant film.Type: ApplicationFiled: November 17, 2023Publication date: July 25, 2024Inventors: Hyo Jeong KWON, Seung Wook KWON, HEECHANG YOON
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Patent number: 12004364Abstract: A light-emitting device and an apparatus including the same include a first electrode, a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes m emission units and (m-1) charge generating units, each of the charge generating units being between the emission units that are adjacent to each other, m is a natural number of 2 or greater, at least one of the (m-1) charge generating units includes an n-type charge generating layer, a p-type charge generating layer, and a p-type hole injection layer, wherein the n-type charge generating layer includes an n-type organic compound and a metal material, and wherein the p-type charge generating layer and the p-type hole injection layer each independently include an inorganic semiconductor material.Type: GrantFiled: July 5, 2023Date of Patent: June 4, 2024Assignee: Samsung Display Co., Ltd.Inventors: Dongchan Kim, Jiyoung Moon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Haemyeong Lee, Myungsuk Han, Jihwan Yoon, Jonghyuk Lee, Yoonhyeung Cho
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Publication number: 20240123724Abstract: Provided is a protective film including a first protective film configured to cover an upper surface of a display panel, the first protective film including a flat portion, inclined portions extending from the flat portion, and surrounding the flat portion in plan view, and boundary portions respectively between the inclined portions, and respectively corresponding to corners of the flat portion, wherein the inclined portions and the boundary portions become thinner in a direction away from the flat portion.Type: ApplicationFiled: August 2, 2023Publication date: April 18, 2024Inventors: OHJUNE KWON, HEECHANG YOON, Sangyeon HWANG
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Publication number: 20240099117Abstract: A method of manufacturing a display device includes providing an encapsulation layer on a display panel, providing an uncured resin layer on the encapsulation layer and forming a protective layer by curing the uncured resin layer in a nitrogen atmosphere having an oxygen concentration in a range of about 300 ppm to about 10000 ppm.Type: ApplicationFiled: July 1, 2023Publication date: March 21, 2024Inventors: SEUNGWOOK KWON, HEECHANG YOON, JINHO HYUN, OHJUNE KWON, HYOJEONG KWON, SEUNGGUN CHAE, SEUNG-YEON CHAE, Sangyeon Hwang
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Publication number: 20240081138Abstract: A method of manufacturing a display device includes: forming an encapsulation layer on a display panel, forming an uncured resin layer on the encapsulation layer, applying beads on a surface of the uncured resin layer and forming a protective layer by curing the uncured resin layer.Type: ApplicationFiled: July 1, 2023Publication date: March 7, 2024Inventors: HEECHANG YOON, SEUNGWOOK KWON, HYOJEONG KWON, SEUNG-YEON CHAE
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Patent number: 11895903Abstract: A method of forming a perovskite thin film and a light-emitting device including a layer manufactured by the method.Type: GrantFiled: October 20, 2021Date of Patent: February 6, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yoonseok Ka, Dongchan Kim, Jiyoung Moon, Heechang Yoon
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Publication number: 20230354635Abstract: A light-emitting device and an apparatus including the same include a first electrode, a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes m emission units and (m?1) charge generating units, each of the charge generating units being between the emission units that are adjacent to each other, m is a natural number of 2 or greater, at least one of the (m?1) charge generating units includes an n-type charge generating layer, a p-type charge generating layer, and a p-type hole injection layer, wherein the n-type charge generating layer includes an n-type organic compound and a metal material, and wherein the p-type charge generating layer and the p-type hole injection layer each independently include an inorganic semiconductor material.Type: ApplicationFiled: July 5, 2023Publication date: November 2, 2023Inventors: Dongchan Kim, Jiyoung Moon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Haemyeong Lee, Myungsuk Han, Jihwan Yoon, Jonghyuk Lee, Yoonhyeung Cho
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Patent number: 11744100Abstract: A light-emitting device and an apparatus including the same include a first electrode, a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes m emission units and (m?1) charge generating units, each of the charge generating units being between the emission units that are adjacent to each other, m is a natural number of 2 or greater, at least one of the (m?1) charge generating units includes an n-type charge generating layer, a p-type charge generating layer, and a p-type hole injection layer, wherein the n-type charge generating layer includes an n-type organic compound and a metal material, and wherein the p-type charge generating layer and the p-type hole injection layer each independently include an inorganic semiconductor material.Type: GrantFiled: April 9, 2021Date of Patent: August 29, 2023Assignee: Samsung Display Co., Ltd.Inventors: Dongchan Kim, Jiyoung Moon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Haemyeong Lee, Myungsuk Han, Jihwan Yoon, Jonghyuk Lee, Yoonhyeung Cho
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Publication number: 20230180514Abstract: A display panel includes a base layer including a display area and a non-display area adjacent to the display area, a plurality of light-emitting elements disposed in the display area, a hydrophobic layer disposed in the non-display area and spaced apart from the light-emitting elements, an insulating layer disposed on the light-emitting elements and including an upper surface and an inclined surface inclined with respect to the upper surface, and a plurality of patterns contacting with the hydrophobic layer, and the plurality of patterns is spaced apart from the inclined surface.Type: ApplicationFiled: September 22, 2022Publication date: June 8, 2023Inventors: HYEMIN LEE, HEECHANG YOON, HYOUNG SUB LEE, JINHO HYUN
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Patent number: 11653517Abstract: A light-emitting device includes a first electrode; a second electrode facing the first electrode; m emission units between the first electrode and the second electrode; and m?1 charge-generating unit(s) between adjacent ones of the emission units, where m is a natural number of 2 or more. The emission units each include an emission layer. At least one of the charge-generating unit(s) includes an n-type charge-generating layer and a p-type charge-generating layer; and the n-type charge-generating layer includes a first material and a second material. The first material includes an organic electron transport compound; and the second material includes at least one selected from an alkali metal, an alkali metal alloy, an alkaline earth metal, an alkaline earth metal alloy, a lanthanide metal, and a lanthanide metal alloy. The light-emitting device may have improved hole and electron balance, a decreased driving voltage, and excellent efficiency and/or lifespan characteristics.Type: GrantFiled: September 26, 2020Date of Patent: May 16, 2023Assignee: Samsung Display Co., Ltd.Inventors: Dongchan Kim, Jiyoung Moon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Haemyeong Lee, Yoonhyeung Cho, Myungsuk Han, Jihwan Yoon, Jonghyuk Lee
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Publication number: 20230122827Abstract: A display device includes a first region including a first light emitting element including a first electrode, a second region including a second light emitting element including a second electrode, a pixel defining layer including a first sidewall defining a first opening corresponding to the first electrode and a second sidewall defining a second opening corresponding to the second electrode, a first spacer which protrudes from the pixel defining layer in the first region and includes a first edge closest to the first opening, and a second spacer which protrudes from the pixel defining layer in the second region and includes a second edge closest to the second opening. A distance between the first sidewall and the first edge, is smaller than a distance between the second sidewall and the second edge.Type: ApplicationFiled: August 12, 2022Publication date: April 20, 2023Inventors: JINHO HYUN, HEECHANG YOON, HYOUNG SUB LEE, HYEMIN LEE, WOO YONG SUNG, SEUNGYONG SONG
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Publication number: 20230094912Abstract: An inkjet printing apparatus includes: a stage, which reciprocates in forward and reverse directions opposite to each other and has a target substrate disposed thereon; an inspection device including a film disposed outside the stage and a measurement unit which measures an inspection pattern provided on the film; and a head assembly, which moves along one direction crossing the forward direction and has a plurality of heads which supplies a liquid composition to the target substrate. The head assembly moves in the one direction to overlap the film and sprays the composition onto the film to form an inspection pattern.Type: ApplicationFiled: August 18, 2022Publication date: March 30, 2023Inventors: JINHO HYUN, HEECHANG YOON, HYOUNG SUB LEE, HYEMIN LEE
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Publication number: 20220344591Abstract: A method of forming a perovskite thin film and a light-emitting device including a layer manufactured by the method.Type: ApplicationFiled: October 20, 2021Publication date: October 27, 2022Inventors: Yoonseok Ka, Dongchan Kim, Jiyoung Moon, Heechang Yoon
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Publication number: 20220344595Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including a first layer, wherein the first electrode has a work function value of about ?5.5 eV to about ?6.1 eV, and the interlayer includes a second layer doped with a non-lead-based perovskite compound.Type: ApplicationFiled: December 7, 2021Publication date: October 27, 2022Inventors: Heechang Yoon, Dongchan Kim, Yoonseok Ka, Jiyoung Moon, Haemyeong Lee, Yoonhyeung Cho
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Publication number: 20220149310Abstract: A light-emitting device and an electronic apparatus including the same are provided. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode and including an emission layer; and m?1 charge generation layers each between two neighboring emission units from among the m emission units, wherein m is an integer of 2 or more, at least one of the m emission units includes an inorganic mixed layer between the first electrode and the emission layer, and the inorganic mixed layer includes an inorganic insulating material and an inorganic semiconductor material.Type: ApplicationFiled: October 13, 2021Publication date: May 12, 2022Inventors: Dongchan Kim, Donghui Lee, Chulsoon Lee, Haemyeong Lee, Wonsuk Han, Yoonseok Ka, Jiyoung Moon, Jihwan Yoon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Yoonhyeung Cho, Myungsuk Han
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Publication number: 20210320274Abstract: A light-emitting device and an apparatus including the same include a first electrode, a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes m emission units and (m?1) charge generating units, each of the charge generating units being between the emission units that are adjacent to each other, m is a natural number of 2 or greater, at least one of the (m?1) charge generating units includes an n-type charge generating layer, a p-type charge generating layer, and a p-type hole injection layer, wherein the n-type charge generating layer includes an n-type organic compound and a metal material, and wherein the p-type charge generating layer and the p-type hole injection layer each independently include an inorganic semiconductor material.Type: ApplicationFiled: April 9, 2021Publication date: October 14, 2021Inventors: Dongchan Kim, Jiyoung Moon, Heechang Yoon, Jihye Lee, Hakchoong Lee, Haemyeong Lee, Myungsuk Han, Jihwan Yoon, Jonghyuk Lee, Yoonhyeung Cho
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Publication number: 20210210711Abstract: A light-emitting device includes a first electrode; a second electrode facing the first electrode; m emission units between the first electrode and the second electrode; and m?1 charge-generating unit(s) between adjacent ones of the emission units, where m is a natural number of 2 or more. The emission units each include an emission layer. At least one of the charge-generating unit(s) includes an n-type charge-generating layer and a p-type charge-generating layer; and the n-type charge-generating layer includes a first material and a second material. The first material includes an organic electron transport compound; and the second material includes at least one selected from an alkali metal, an alkali metal alloy, an alkaline earth metal, an alkaline earth metal alloy, a lanthanide metal, and a lanthanide metal alloy. The light-emitting device may have improved hole and electron balance, a decreased driving voltage, and excellent efficiency and/or lifespan characteristics.Type: ApplicationFiled: September 26, 2020Publication date: July 8, 2021Inventors: Dongchan KIM, Jiyoung MOON, Heechang YOON, Jihye LEE, Hakchoong LEE, Haemyeong LEE, Yoonhyeung CHO, Myungsuk HAN, Jihwan YOON, Jonghyuk LEE