Patents by Inventor Hyun-Min Cho
Hyun-Min Cho 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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Patent number: 12294014Abstract: A light emitting device comprises: a substrate; a first electrode on the substrate, the first electrode having holes, and having inclined surfaces along the peripheries of the holes; second electrodes on the substrate, each of which is in a respective one of the holes of the first electrode; and light emitting elements between the first electrode and the second electrodes, the light-emitting elements being electrically connected to the first electrode and the second electrodes.Type: GrantFiled: June 11, 2019Date of Patent: May 6, 2025Assignee: Samsung Display Co., Ltd.Inventors: Chong Chul Chai, Hyun Joon Kim, Hyun Min Cho, Kyung Bae Kim, Min Jae Jeong
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Patent number: 12288833Abstract: A display device includes a substrate including a display area and a non-display area; and at least one pixel provided in the display area, and including a pixel circuit layer. The display element layer includes at least one transistor, and a display element layer including at least one light emitting element emitting light, and a first electrode and a second electrode spaced apart from each other, disposed on the substrate, and each extending in a first direction, and the at least one light emitting element is electrically connected to each of the first and the second electrodes. The first electrode has at least two widths in an extension direction of the first electrode. The second electrode has at least two widths in an extension direction of the second electrode.Type: GrantFiled: March 4, 2020Date of Patent: April 29, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eun A Yang, Jong Hyuk Kang, Hyun Deok Im, Hyun Min Cho
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Patent number: 12289940Abstract: A display device includes a pixel disposed in a display area; a first line electrically connected to the pixel; and a first control line disposed around the first line. The pixel includes a first electrode and a second electrode spaced apart from each other; at least one intermediate electrode including a first intermediate electrode disposed between the first electrode and the second electrode; light emitting elements electrically connected between a pair of adjacent electrodes among the first electrode, the second electrode, and the at least one intermediate electrode; and a first switching element electrically connected between the first intermediate electrode and the first line, the first switching element being controlled by a signal applied to the first control line.Type: GrantFiled: April 10, 2020Date of Patent: April 29, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sin Chul Kang, Su Mi Moon, Jae Woong Kang, Won Sik Oh, Hyun Min Cho
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Patent number: 12289975Abstract: A display device may include a first sub-pixel including a first light emitting element disposed in a first sub-pixel area of a substrate, a second sub-pixel including a second light emitting element disposed in a second sub-pixel area located in a first direction with respect to the first sub-pixel area of the substrate, a bank layer disposed between the first and second sub-pixels, a first color filter pattern disposed on the first sub-pixel and the bank layer, and a second color filter pattern disposed on the second sub-pixel and the bank layer. The first light emitting element may emit light having a first color. The second light emitting element may emit light having a second color. The first color filter pattern and the second color filter pattern may at least partially overlap each other on the bank layer.Type: GrantFiled: June 26, 2020Date of Patent: April 29, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Jin Kong, Hyun Min Cho, Dae Hyun Kim, Su Mi Moon, Xinxing Li, Hee Keun Lee
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Publication number: 20250133922Abstract: A display device and method for manufacturing the display device includes, a substrate, a light emitting element layer disposed on the substrate and including at least one light emitting element, and a light control layer disposed on the light emitting element layer, wherein the light control layer includes, a plurality of light blocking films disposed to be spaced apart from each other, at least one bridge connecting at least two of the plurality of light blocking films, and a light transmitting film disposed between the plurality of light blocking films and the bridge.Type: ApplicationFiled: July 10, 2024Publication date: April 24, 2025Inventors: Kyong Chol LEE, Yun Jong YEO, Da Woon JUNG, Jae Woo JEONG, Hyun Min CHO
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Publication number: 20250130456Abstract: A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity. a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.Type: ApplicationFiled: December 19, 2024Publication date: April 24, 2025Inventors: JAE BYUNG PARK, SUNG SIK YUN, JONG HYUK KANG, HAE IL PARK, HYUN MIN CHO
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Patent number: 12284879Abstract: A display device includes a first base, a pixel electrode on the first base, a pixel defining layer having an opening that at least partially exposes the pixel electrode, a light emitting layer on the pixel electrode, an auxiliary electrode on the same layer as the pixel electrode, a partition wall on the auxiliary electrode that at least partially exposes a side surface of the auxiliary electrode, an organic layer on the partition wall, and a common electrode continuously arranged on the light emitting layer and the organic layer, wherein a side surface of the partition wall has a reverse-tapered shape, and the common electrode contacts the side surface of the auxiliary electrode.Type: GrantFiled: November 11, 2022Date of Patent: April 22, 2025Assignee: Samsung Display Co., Ltd.Inventors: Hyun Min Cho, Tae Wook Kang, Tae Sung Kim, Dae Won Choi, Sang Gab Kim
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Patent number: 12283604Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.Type: GrantFiled: March 20, 2023Date of Patent: April 22, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Hyuk Kang, Hyun Min Cho, Dae Hyun Kim, Joo Yeol Lee, Hyun Deok Im
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Patent number: 12272770Abstract: A display device may include pixels disposed on a substrate. Each of the pixels may include a first electrode, a second electrode spaced apart from the first electrode and enclosing a perimeter of the first electrode, light emitting elements disposed between the first electrode and the second electrode, and each including a first end and a second end, a third electrode overlapping the first electrode and the first end of each of the light emitting elements in a plan view, and electrically contacting the first electrode and the first end of each of the light emitting elements, and a fourth electrode overlapping the second electrode and the second end of each of the light emitting elements in a plan view, and electrically contacting the second electrode and the second end of each of the light emitting elements. The light emitting elements may be radially disposed around the first electrode.Type: GrantFiled: November 27, 2020Date of Patent: April 8, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eun A Yang, Han Su Kim, Jong Hyuk Kang, Hyun Min Cho
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Patent number: 12268001Abstract: A nonvolatile memory device with improved reliability is provided. The nonvolatile memory device comprises a substrate, a mold structure including a plurality of word lines stacked on the substrate, a first word line cut region configured to cut the mold structure, a first channel structure spaced apart from the first word line cut region by a first distance, and disposed in the mold structure and the substrate, and a second channel structure spaced apart from the first word line cut region by a second distance, and disposed in the mold structure and the substrate, wherein the second distance is greater than the first distance, a first width of the first channel structure is different from a second width of the second channel structure, and a first length of the first channel structure is different from a second length of the second channel structure.Type: GrantFiled: May 4, 2022Date of Patent: April 1, 2025Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-Hwan Lee, Hyun Min Cho
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Publication number: 20250107294Abstract: A display device includes a first electrode and a second electrode that are spaced apart from and facing each other; a light-blocking layer disposed above the first electrode and the second electrode; and at least one light-emitting element disposed between the first electrode and the second electrode. The light-blocking layer includes a light-blocking portion absorbing light and an opening pattern. The light-blocking portion includes an area partially overlapping the first electrode and the second electrode. The at least one opening pattern exposes portions of the first and second electrodes facing each other and at least a portion of an area between the first and second electrodes facing each other. The at least one light-emitting element overlaps the at least one opening pattern.Type: ApplicationFiled: February 23, 2024Publication date: March 27, 2025Applicant: Samsung Display Co., LTD.Inventors: Jin Oh KWAG, Dae Hyun KIM, Keun Kyu SONG, Sung Chan JO, Hyun Min CHO
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Patent number: 12255223Abstract: A display device includes a pixel in a display area. The pixel includes: spaced apart first and second electrodes; a first insulating layer on the first electrode and the second electrode and between the first electrode and the second electrode and having a first etch selectivity; a first insulating pattern on the first insulating layer between the first electrode and the second electrode, and having a second etch selectivity; a light emitting element on the first insulating pattern; a second insulating pattern having the second etch selectivity and being on one area of the light emitting element such that a first end and the second end of the light emitting element are exposed; and third and fourth electrodes configured to electrically connect the first end and the second end of the light emitting element to the first and second electrodes, respectively.Type: GrantFiled: August 24, 2020Date of Patent: March 18, 2025Assignee: Samsung Display Co., Ltd.Inventors: Hyun Deok Im, Jong Hyuk Kang, Dae Hyun Kim, Hyun Min Cho
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Patent number: 12249674Abstract: A display device includes a first electrode extending in a first direction; a second electrode extending in the first direction and spaced apart from, in a second direction, the first electrode; a light-emitting element having a shape extending in a direction and between the first and second electrodes such that the direction is parallel to the second direction; a first contact electrode having a shape extending in a third direction and having at least a portion on the first electrode; and a second contact electrode having a shape extending in the third direction, spaced apart from, in a fourth direction, the first contact electrode, and having at least a portion on the second electrode, the first contact electrode electrically contacts a side of the light-emitting element, and the second contact electrode electrically contacts another side of the light-emitting element.Type: GrantFiled: December 11, 2020Date of Patent: March 11, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun Deok Im, Jong Hyuk Kang, Hyun Min Cho
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Patent number: 12243969Abstract: A light emitting element structure may include at least one light emitting element which is disposed on a substrate and spaced apart from each other, and extends in a direction perpendicular to the substrate; an auxiliary layer which is disposed on the substrate, exposes at least a portion of the upper surface of the substrate, and surrounds the outer surface of the light emitting element; a current spreading layer which is disposed on the auxiliary layer and electrically contacts an end of the light emitting element; a first pad which is electrically connected to the end of the light emitting element, disposed on the current spreading layer, and does not to overlap the light emitting element; and a second pad which is electrically connected to another end of the light emitting element disposed on the upper surface of the exposed substrate and spaced apart from the auxiliary layer.Type: GrantFiled: May 27, 2019Date of Patent: March 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun Min Cho, Jung Hong Min, Dae Hyun Kim, Dong Uk Kim
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Patent number: 12243953Abstract: An apparatus for manufacturing a light emitting display device includes a stage, and at least one electric-field application module disposed on at least one side of the stage. The apparatus further includes at least one of: at least one printing head disposed above the stage, and a heating element disposed adjacent the stage. The at least one electric-field application module includes a probe head having at least one probe pin, and a driver connected to the probe head to move the probe head.Type: GrantFiled: February 7, 2019Date of Patent: March 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Hyuk Kang, Won Ho Lee, Hyun Deok Im, Young Hoi Kim, Jin Young Kim, Hyun Min Cho, Hae Yun Choi
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Patent number: 12230739Abstract: A display device includes pixel areas; and a pixel disposed in each of the pixel areas. The pixel includes a first electrode and a second electrode disposed on a substrate and disposed on a same layer, a light emitting element disposed on the first electrode and the second electrode, a third electrode electrically connecting the first electrode to a first end of the light emitting element, a fourth electrode electrically connecting the second electrode to a second end of the light emitting element, and an electrode pattern and the electrode pattern and one of the third electrode and the fourth electrode being disposed on a same layer.Type: GrantFiled: September 8, 2020Date of Patent: February 18, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung Lyong Bok, Hyun Min Cho
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Patent number: 12224307Abstract: A display device includes a pixel disposed in a display area. The pixel includes a first electrode; a first insulating layer disposed on the first electrode, and including openings, each of the openings exposing different areas of the first electrode and defining respective cells; light emitting elements disposed in the respective cells, each of the light emitting elements including a first end electrically connected to the first electrode; and a second end protruding upward from the first insulating layer; and a second electrode disposed on the light emitting elements, and electrically connected to the second ends of each of the light emitting elements.Type: GrantFiled: January 16, 2020Date of Patent: February 11, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Xinxing Li, Tae Jin Kong, Dae Hyun Kim, Veidhes Basrur, Hyun Min Cho
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Patent number: 12218175Abstract: A display deice includes a pair of first color sub-pixels arranged in a display area in a first direction, each of the pair of first color sub-pixels including at least one first color light emitting element, and a bank enclosing the pair of first color sub-pixels. The bank includes at least two areas having different widths in an area corresponding to each of the pair of first color sub-pixels.Type: GrantFiled: April 1, 2019Date of Patent: February 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Woo Choi, Eun A Yang, Hyun Min Cho
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Patent number: 12218299Abstract: A display device may include a display area including pixel areas each including an emission area, a non-display area, and a pixel disposed in each of the pixel areas. The pixel may include a first electrode, a second electrode spaced apart from the first electrode and surrounding a periphery of the first electrode, a third electrode spaced apart from the second electrode and surrounding a periphery of the second electrode, a fourth electrode spaced apart from the third electrode and surrounding a periphery of the third electrode, light emitting elements disposed between the first to fourth electrodes, and first and second conductive lines disposed under the first to fourth electrodes with an insulating layer disposed therebetween. The first conductive line may be electrically connected to the first electrode, and the second conductive line may be electrically connected to the fourth electrode.Type: GrantFiled: October 19, 2020Date of Patent: February 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chang Il Tae, Hyun Min Cho, Dae Hyun Kim
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Publication number: 20250040330Abstract: A light emitting device, includes: a substrate; a light emitting element on the substrate, the light emitting element having a first end portion and a second end portion arranged in a longitudinal direction; one or more partition walls disposed on the substrate, the one or more partition walls being spaced apart from the light emitting element; a first reflection electrode adjacent the first end portion of the light emitting element; a second reflection electrode adjacent the second end portion of the light emitting element; a first contact electrode connected to the first reflection electrode and the first end portion of the light emitting element; an insulating layer on the first contact electrode, the insulating layer having an opening exposing the second end portion of the light emitting element and the second reflection electrode to the outside; and a second contact electrode on the insulating layer.Type: ApplicationFiled: October 10, 2024Publication date: January 30, 2025Inventors: Dae Hyun Kim, Jong Hyuk Kang, Joo Yeol Lee, Hyun Deok Im, Hyun Min Cho