Patents by Inventor Hanul YOO
Hanul YOO 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: 20250022867Abstract: A display apparatus includes a circuit board including driving circuits; and a pixel array on the circuit board and including a plurality of pixels, wherein the pixel array includes LED cells having a pillar shape and including first and second conductivity-type semiconductor layers and an active layer, wherein a width thereof is 100 ?m or less, and a height thereof is greater than the width; a transparent electrode on lower surfaces of the LED cells and including a cone or pyramid-shaped inclined portion; a passivation layer disposed on side surfaces of the LED cells and extending from a side surface of the LED cell to a side surface of the inclined portion of the transparent electrode.Type: ApplicationFiled: May 29, 2024Publication date: January 16, 2025Inventors: Dooho JEONG, Taehun KIM, Hanul YOO, Taesung JANG
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Patent number: 12159895Abstract: A display apparatus includes a circuit board including a driving circuit, and a pixel array including a plurality of pixels on the circuit board, each including a plurality of sub-pixels, and a light blocking partition between the plurality of sub-pixels. Each of the plurality of sub-pixels includes a lower light emitting diode (LED) cell configured to generate light of a first wavelength. A first sub-pixel includes a transparent resin structure on the first lower LED cell, a second sub-pixel includes an inter-cell insulating layer on the second lower LED cell and an upper LED cell having on the inter-cell insulating layer and configured to generate light of a second wavelength, and a third sub-pixel includes a wavelength conversion structure on the third lower LED cell and configured to convert light of the first wavelength into light of a third wavelength.Type: GrantFiled: July 13, 2021Date of Patent: December 3, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jihye Yeon, Sammook Kang, Hankyu Seong, Jongin Yang, Hanul Yoo, Jihoon Yun
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Publication number: 20240266474Abstract: A semiconductor light emitting device includes a first conductivity type semiconductor layer, a second conductivity type semiconductor layer arranged on the first conductivity type semiconductor layer, an active layer, an electrode layer formed on a top surface of the second conductivity type semiconductor layer, a reflective layer formed on a part of a top surface of the electrode layer, a bonding pad formed on a top surface of the reflective layer, an insulating layer formed on another part of the top surface of the electrode layer, and an insulating spacer conformally formed along a surface of the substrate. The reflective layer includes a material that is not etched by an aqueous solution including one of tetramethyl ammonium hydroxide (TMAH), KOH, NaOH, and NH4OH and the bonding pad has a shell shape including a part of which the width gradually decreases as the part distances from the reflective layer.Type: ApplicationFiled: February 2, 2024Publication date: August 8, 2024Inventors: Taehun KIM, Gyeongseon PARK, Hanul YOO, Suyeol LEE, Taesung JANG, Dooho JEONG
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Patent number: 11728371Abstract: An LED module includes light emission windows; LED cells corresponding to the light emission windows, the LED cells each including a lower and upper light emitting structure, the lower light emitting structure having an upper surface with first and second regions and having a first conductivity-type semiconductor layer, the upper light emitting structure being on the first region of the lower light emitting structure and having a second conductivity-type semiconductor layer, the LED cells including an active layer between the first and second conductivity-type semiconductor layers; a protective insulating film on a side surface of the lower light emitting structure and on the second region; a light blocking film on the protective insulating film, between the LED cells; a gap-fill insulating film on the protective insulating film between the LED cells and contacting a side surface of the upper light emitting structure; a first electrode; and a second electrode.Type: GrantFiled: April 8, 2022Date of Patent: August 15, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jihye Yeon, Hanul Yoo, Jihoon Yun, Suhyun Jo
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Publication number: 20220231082Abstract: An LED module includes light emission windows; LED cells corresponding to the light emission windows, the LED cells each including a lower and upper light emitting structure, the lower light emitting structure having an upper surface with first and second regions and having a first conductivity-type semiconductor layer, the upper light emitting structure being on the first region of the lower light emitting structure and having a second conductivity-type semiconductor layer, the LED cells including an active layer between the first and second conductivity-type semiconductor layers; a protective insulating film on a side surface of the lower light emitting structure and on the second region; a light blocking film on the protective insulating film, between the LED cells; a gap-fill insulating film on the protective insulating film between the LED cells and contacting a side surface of the upper light emitting structure; a first electrode; and a second electrode.Type: ApplicationFiled: April 8, 2022Publication date: July 21, 2022Inventors: Jihye YEON, Hanul YOO, Jihoon YUN, Suhyun JO
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Patent number: 11380818Abstract: A semiconductor light emitting device including at least one light emitting structure on a substrate, the at least one light emitting structure including a first semiconductor pattern, an active pattern, and a second semiconductor pattern sequentially stacked in a vertical direction substantially perpendicular to an upper surface of the substrate; a first electrode contacting a substrate-facing surface of the first semiconductor pattern; and a second electrode at least partially surrounding and contacting a sidewall of the second semiconductor pattern.Type: GrantFiled: May 14, 2020Date of Patent: July 5, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jongin Yang, Hankyu Seong, Sunghyun Sim, Jihye Yeon, Hanul Yoo, Jihoon Yun
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Publication number: 20220139999Abstract: A display apparatus includes a circuit board including a driving circuit, and a pixel array including a plurality of pixels on the circuit board, each including a plurality of sub-pixels, and a light blocking partition between the plurality of sub-pixels. Each of the plurality of sub-pixels includes a lower light emitting diode (LED) cell configured to generate light of a first wavelength. A first sub-pixel includes a transparent resin structure on the first lower LED cell, a second sub-pixel includes an inter-cell insulating layer on the second lower LED cell and an upper LED cell having on the inter-cell insulating layer and configured to generate light of a second wavelength, and a third sub-pixel includes a wavelength conversion structure on the third lower LED cell and configured to convert light of the first wavelength into light of a third wavelength.Type: ApplicationFiled: July 13, 2021Publication date: May 5, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jihye YEON, Sammook Kang, Hankyu Seong, Jongin Yang, Hanul Yoo, Jihoon Yun
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Patent number: 11302745Abstract: An LED module includes light emission windows; LED cells corresponding to the light emission windows, the LED cells each including a lower and upper light emitting structure, the lower light emitting structure having an upper surface with first and second regions and having a first conductivity-type semiconductor layer, the upper light emitting structure being on the first region of the lower light emitting structure and having a second conductivity-type semiconductor layer, the LED cells including an active layer between the first and second conductivity-type semiconductor layers; a protective insulating film on a side surface of the lower light emitting structure and on the second region; a light blocking film on the protective insulating film, between the LED cells; a gap-fill insulating film on the protective insulating film between the LED cells and contacting a side surface of the upper light emitting structure; a first electrode; and a second electrode.Type: GrantFiled: June 15, 2020Date of Patent: April 12, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Jihye Yeon, Hanul Yoo, Jihoon Yun, Suhyun Jo
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Publication number: 20210167248Abstract: A semiconductor light emitting device including at least one light emitting structure on a substrate, the at least one light emitting structure including a first semiconductor pattern, an active pattern, and a second semiconductor pattern sequentially stacked in a vertical direction substantially perpendicular to an upper surface of the substrate; a first electrode contacting a substrate-facing surface of the first semiconductor pattern; and a second electrode at least partially surrounding and contacting a sidewall of the second semiconductor pattern.Type: ApplicationFiled: May 14, 2020Publication date: June 3, 2021Inventors: Jongin YANG, Hankyu SEONG, Sunghyun SIM, Jihye YEON, Hanul YOO, Jihoon YUN
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Publication number: 20210126045Abstract: An LED module includes light emission windows; LED cells corresponding to the light emission windows, the LED cells each including a lower and upper light emitting structure, the lower light emitting structure having an upper surface with first and second regions and having a first conductivity-type semiconductor layer, the upper light emitting structure being on the first region of the lower light emitting structure and having a second conductivity-type semiconductor layer, the LED cells including an active layer between the first and second conductivity-type semiconductor layers; a protective insulating film on a side surface of the lower light emitting structure and on the second region; a light blocking film on the protective insulating film, between the LED cells; a gap-fill insulating film on the protective insulating film between the LED cells and contacting a side surface of the upper light emitting structure; a first electrode; and a second electrode.Type: ApplicationFiled: June 15, 2020Publication date: April 29, 2021Inventors: Jihye YEON, Hanul YOO, Jihoon YUN, Suhyun JO
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Patent number: 10991857Abstract: A method of fabricating a light emitting device package includes forming a plurality of semiconductor light emitting parts, each having a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on a growth substrate, forming a partition structure having a plurality of light emitting windows on the growth substrate, filling each of the plurality of light emitting windows with a resin having a phosphor, and forming a plurality of wavelength conversion parts by planarizing a surface of the resin.Type: GrantFiled: June 17, 2019Date of Patent: April 27, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Wan Tae Lim, Sung Hyun Sim, Hanul Yoo, Yong Il Kim, Hye Seok Noh, Ji Hye Yeon
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Patent number: 10566382Abstract: A semiconductor light emitting device includes a plurality of light emitting cells including a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer between the first and second conductivity type semiconductor layers, an insulating layer on the plurality of light emitting cells and having a first opening and a second opening defining a first contact region of the first conductivity type semiconductor layer and a second contact region of the second conductivity type semiconductor layer, respectively, in each of the plurality of light emitting cells, a connection electrode on the insulating layer and connecting the first contact region and the second contact region to electrically connect the plurality of light emitting cells to each other, a transparent support substrate on the insulating layer and the connection electrode, and a transparent bonding layer between the insulating layer and the transparent support substrate.Type: GrantFiled: October 20, 2017Date of Patent: February 18, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji Hye Yeon, Han Kyu Seong, Wan Tae Lim, Sung Hyun Sim, Hanul Yoo
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Patent number: 10553641Abstract: A light emitting device package includes a substrate for growth having a plurality of light-emitting windows, a plurality of semiconductor light-emitting units corresponding to the plurality of light-emitting windows, each semiconductor light-emitting unit having a first surface contacting the substrate for growth and a second surface opposite the first surface, and each semiconductor light-emitting unit having a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer stacked on each other, a plurality of wavelength conversion units respectively disposed inside the plurality of light-emitting windows, each wavelength conversion unit is configured to provide light having a wavelength different from light emitted by the respective semiconductor light-emitting unit, a metal support layer disposed on at least one surface of each of the plurality of semiconductor light-emitting units and having a lateral surface coplanar with a lateral surface of the substraType: GrantFiled: March 23, 2018Date of Patent: February 4, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji Hye Yeon, Sung Hyun Sim, Wan Tae Lim, Yong Il Kim, Hanul Yoo
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Patent number: 10475957Abstract: An LED light source module includes a light emitting stacked body, and a first through electrode structure and a second through electrode structure passing through a portion of the light emitting stacked body. The light emitting stacked body includes a base insulating layer, light emitting layers sequentially stacked on the base insulating layer, each of the light emitting layers including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer disposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer, and an interlayer insulating layer disposed between the light emitting layers. The first through electrode structure is connected to the first conductivity-type semiconductor layer of each of the light emitting layers, and the second through electrode structure is connected to any one or any combination of the second conductivity-type semiconductor layer of each of the light emitting layers.Type: GrantFiled: November 14, 2018Date of Patent: November 12, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Goo Cha, Yong Il Kim, Young Soo Park, Sung Hyun Sim, Hanul Yoo
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Publication number: 20190312182Abstract: A method of fabricating a light emitting device package includes forming a plurality of semiconductor light emitting parts, each having a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on a growth substrate, forming a partition structure having a plurality of light emitting windows on the growth substrate, filling each of the plurality of light emitting windows with a resin having a phosphor, and forming a plurality of wavelength conversion parts by planarizing a surface of the resin.Type: ApplicationFiled: June 17, 2019Publication date: October 10, 2019Inventors: Wan Tae LIM, Sung Hyun SIM, Hanul YOO, YONG IL KIM, Hye Seok NOH, Ji Hye YEON
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Patent number: 10333035Abstract: A method of manufacturing a light emitting device package is provided. The method includes preparing a film strip including one or more light blocking regions and one or more wavelength conversion regions, preparing light emitting devices, each including one or more light emitting regions, bonding the film strip to the light emitting devices so as to dispose the one or more wavelength conversion regions on the one or more light emitting regions of each of the light emitting devices, and cutting the film strip and the light emitting devices into individual device units.Type: GrantFiled: October 28, 2016Date of Patent: June 25, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Goo Cha, Sung Hyun Sim, Wan tae Lim, Hye Seok Noh, Hanul Yoo
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Publication number: 20190189853Abstract: A light emitting device package comprises a light emitting cell array including a first light emitting cell, a second light emitting cell, and a third light emitting cell, and including a first surface, and a second surface, disposed to oppose the first surface; a plurality of metal pillars disposed on the first surface of the light emitting cell array and electrically connected to the first light emitting cell, the second light emitting cell, and the third light emitting cell; and a molding portion encapsulating the light emitting cell array and the plurality of metal pillars, wherein the plurality of metal pillars include a conductive layer and a bonding layer disposed below the conductive layer, and an interface between the bonding layer and the conductive layer is higher than a lower surface of the molding portion.Type: ApplicationFiled: June 19, 2018Publication date: June 20, 2019Inventors: Hanul YOO, Sung Hyun SIM, Ji Hye YEON, Yong Il KIM, Dong Gun LEE
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Patent number: 10326061Abstract: A method of fabricating a light emitting device package includes forming a plurality of semiconductor light emitting parts, each having a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on a growth substrate, forming a partition structure having a plurality of light emitting windows on the growth substrate, filling each of the plurality of light emitting windows with a resin having a phosphor, and forming a plurality of wavelength conversion parts by planarizing a surface of the resin.Type: GrantFiled: April 13, 2017Date of Patent: June 18, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Wan Tae Lim, Sung Hyun Sim, Hanul Yoo, Yong Il Kim, Hye Seok Noh, Ji Hye Yeon
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Publication number: 20190103510Abstract: An LED light source module includes a light emitting stacked body, and a first through electrode structure and a second through electrode structure passing through a portion of the light emitting stacked body. The light emitting stacked body includes a base insulating layer, light emitting layers sequentially stacked on the base insulating layer, each of the light emitting layers including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer disposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer, and an interlayer insulating layer disposed between the light emitting layers. The first through electrode structure is connected to the first conductivity-type semiconductor layer of each of the light emitting layers, and the second through electrode structure is connected to any one or any combination of the second conductivity-type semiconductor layer of each of the light emitting layers.Type: ApplicationFiled: November 14, 2018Publication date: April 4, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Goo CHA, Yong Il KIM, Young Soo PARK, Sung Hyun SIM, Hanul YOO
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Patent number: 10217914Abstract: A semiconductor light emitting device includes: a light emitting structure including a first conductivity-type semiconductor layer and a second conductivity-type semiconductor layer respectively providing a first surface and a second surface, opposite to each other, of the light emitting structure, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer, a region of the first conductivity-type semiconductor layer being open toward the second surface, and the first surface having a concavo-convex portion disposed thereon; a first electrode and a second electrode disposed on the region of the first conductivity-type semiconductor layer and a region of the second conductivity-type semiconductor layer, respectively; a transparent support substrate disposed on the first surface of the light emitting structure; and a transparent adhesive layer disposed between the first surface of the light emitting structure and the transparent supType: GrantFiled: May 24, 2016Date of Patent: February 26, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Goo Cha, Wan Tae Lim, Yong Il Kim, Hye Seok Noh, Eun Joo Shin, Sung Hyun Sim, Hanul Yoo