Patents by Inventor Joon Yong Park
Joon Yong Park 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: 20240224761Abstract: A display device includes a first pixel electrode disposed in a first emission area on a substrate, an insulating layer covering an edge of the first pixel electrode, a first emissive layer disposed on the first pixel electrode and the insulating layer, a first common electrode disposed on the first emissive layer, a bank disposed on the insulating layer to surround the first emission area, a low-reflection insulating layer disposed on the bank, a first organic pattern surrounding the first emission area on the low-reflection insulating layer and including a same material as a material of the first emissive layer. The bank includes a first bank disposed on the insulating layer and contacts the first common electrode, a second bank disposed on the first bank, a third bank disposed on the second bank, and a fourth bank disposed on the third bank. The first to fourth banks include metal materials.Type: ApplicationFiled: October 3, 2023Publication date: July 4, 2024Inventors: Joon Yong PARK, Hyun Eok SHIN, Ju Hyun LEE, Yung Bin CHUNG
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Publication number: 20240215305Abstract: A display device includes a first pixel electrode in a first emission area, an insulating layer covering an edge of the first pixel electrode, a first light-emitting layer on the first pixel electrode and the insulating layer, a first common electrode on the first light-emitting layer, a bank disposed on the insulating layer and surrounding the first emission area, and a first organic pattern surrounding the first emission area on the bank and including the same material as that of the first light-emitting layer. The bank includes a first bank contacting the first common electrode, a second bank disposed on the first bank and including a tip structure protruding toward the first emission area, and a third bank disposed on the second bank and having low reflection characteristics.Type: ApplicationFiled: October 2, 2023Publication date: June 27, 2024Inventors: Hyun Eok SHIN, Joon Yong PARK
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Publication number: 20240215323Abstract: A display device includes a first pixel electrode disposed on a substrate; an inorganic insulating layer disposed on the substrate; a bank structure disposed on the inorganic insulating layer and including a first opening, which overlap with the first pixel electrode; a first light-emitting layer disposed on the first pixel electrode; and a first common electrode disposed on the first light-emitting layer. The bank structure includes a first bank layer, which is disposed directly on the inorganic insulating layer and includes MoTaOx, a second bank layer, which is disposed on the first bank layer and includes MoTaOx, and a third bank layer, which is disposed between the first bank layer and the second bank layer and includes copper (Cu). The second bank layer includes tips, which protrude beyond the third bank layer, on a sidewall of the first opening, and the first and second bank layers include different Ta contents.Type: ApplicationFiled: September 21, 2023Publication date: June 27, 2024Inventors: Hyun Eok SHIN, Joon Yong PARK, Ju Hyun LEE
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Publication number: 20240154079Abstract: A display device includes a first electrode and a second electrode that are disposed on a substrate and spaced apart from each other. A light emitting element is disposed between the first electrode and the second electrode. A first pixel electrode is disposed on the first electrode, and is electrically connected to a first end portion of the light emitting element and the first electrode. A second pixel electrode is disposed on the second electrode, and is electrically connected to a second end portion of the light emitting element. Each of the first electrode and the second electrode includes a multi-layer structure including a first layer and a second layer disposed on the first layer. The first layer includes a metal reflecting light. The second layer includes tungsten oxide.Type: ApplicationFiled: October 30, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., Ltd.Inventors: Hyun Eok SHIN, Ju Hyun LEE, Sung Joo KWON, Joon Yong PARK
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Publication number: 20240147820Abstract: A display device includes: a display panel having a display area and a non-display area; and a viewing angle control layer in the display area. The viewing angle control layer includes a plurality of viewing angle control patterns spaced apart from one another, and each of the viewing angle control patterns includes a transparent insulating pattern and a multi-layer sidewall on a side surface of the transparent insulating pattern. The multi-layer sidewall includes a first metal nitride layer, a second metal nitride layer, and a metal layer between the first metal nitride layer and the second metal nitride layer, and the first metal nitride layer, the second metal nitride layer, and the metal layer each includes Al or Ti.Type: ApplicationFiled: July 14, 2023Publication date: May 2, 2024Inventors: Hyun Eok SHIN, Joon Yong PARK
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Publication number: 20240138194Abstract: A display device includes first and second pixel electrodes on a substrate to be spaced apart from each other, an inorganic insulating layer on the substrate to partially cover the first pixel electrode and the second pixel electrode, a bank structure on the inorganic insulating layer, where first and second openings overlapping the first and second pixel electrodes are defined through the bank structure, first and second light emitting layers on the first and second pixel electrodes, and first and second common electrodes on the first and second light emitting layers. The bank structure includes first and second bank layers and including different organic insulating materials from each other, the second bank layer has different thicknesses depending on positions thereof, the second bank layer includes tips protruding more than side surfaces of the first bank layer defining the first and second openings, and the first bank layer includes AlNiLaCu.Type: ApplicationFiled: July 20, 2023Publication date: April 25, 2024Inventors: Joon Yong PARK, Hyun Eok SHIN, Dong Min LEE
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Publication number: 20240121996Abstract: A display device is provided. The display device includes a substrate including a display area and a pad area, which is disposed on one side of the display area, a plurality of conductive layers disposed on the substrate, in the display area and the pad area, a passivation layer disposed on the conductive layers, and a plurality of light-emitting elements disposed on the passivation layer, in the display area, and spaced apart from one another, wherein at least one of the conductive layers includes a first metal layer, a second metal layer, which is disposed on the first metal layer, and a third metal layer, which is disposed on the second metal layer, the first metal layer includes vanadium (V), the second metal layer includes aluminum (Al) or an Al alloy, and the third metal layer includes V or titanium (Ti).Type: ApplicationFiled: July 31, 2023Publication date: April 11, 2024Inventors: Hyun Eok SHIN, Sang Gab KIM, Joon Yong PARK, Do Keun SONG, Su Kyoung YANG, Dong Min LEE
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Publication number: 20240114726Abstract: A display device includes first and second pixel electrodes on a substrate and spaced apart from each other, an inorganic insulating layer on the substrate and including portions on the first and second pixel electrodes, a bank structure on the inorganic insulating layer with first and second openings overlapping the first and second pixel electrodes, first and second light emitting layers on the first and second pixel electrodes, and first and second common electrodes on the first and second light emitting layers. The bank structure includes a first bank layer, a second bank layer on the first bank layer and including a different metal material from the first bank layer, and a third bank layer on the second bank layer and including an oxide semiconductor layer, and each of the second bank layer and the third bank layer includes a tip on sidewalls defining the first and second openings.Type: ApplicationFiled: July 5, 2023Publication date: April 4, 2024Inventors: Joon Yong PARK, Hyun Eok SHIN, Dong Min LEE
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Publication number: 20240105899Abstract: A method of manufacturing a display device includes aligning light emitting elements in an emission area on a substrate, depositing an indium-tin alloy on an entire surface of the substrate at room temperature, heat-treating the indium-tin alloy to reflow along side surfaces of each of the light emitting elements, heat-treating the indium-tin alloy in an oxygen atmosphere to form indium tin oxide, and etching the indium tin oxide to form a first pixel electrode contacting first ends of at least a portion of the light emitting elements.Type: ApplicationFiled: September 25, 2023Publication date: March 28, 2024Applicant: Samsung Display Co., LTD.Inventors: Joon Yong PARK, Hyun Eok SHIN, Sung Joo KWON, Sam Tae JEONG
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Publication number: 20240057410Abstract: A display device includes a substrate including a flat area and a trench area, which is recessed from the flat area; an electrode pattern disposed on the substrate, where the electrode pattern includes a dent portion, which is bent along a profile of the trench area of the substrate; a planarization layer inserted in the dent portion; a first insulating layer covering the substrate, the electrode pattern, and the planarization layer; and a light-emitting element disposed on the first insulating layer, where the planarization layer includes an organic-inorganic composite material.Type: ApplicationFiled: April 6, 2023Publication date: February 15, 2024Inventors: Hyun Eok SHIN, Joon Yong PARK, Joon Woo BAE, Do Keun SONG, Yung Bin CHUNG
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Patent number: 11889730Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.Type: GrantFiled: April 29, 2022Date of Patent: January 30, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyeong Su Ko, Joon Yong Park, Gyung Min Baek, Hyun Min Cho, Dae Won Choi
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Publication number: 20240014353Abstract: A display device includes electrodes on a base layer; a first insulating layer on the electrodes; a light emitting element on the first insulating layer; and a connection electrode electrically connecting the light emitting element and at least a portion of the electrodes. Each of the electrodes includes a first layer and a second layer on the first layer. The first layer is electrically connected to the connection electrode through a contact portion formed in a region penetrating the first insulating layer and the second layer.Type: ApplicationFiled: February 14, 2023Publication date: January 11, 2024Applicant: Samsung Display Co., LTD.Inventors: Joon Yong PARK, Sung Joo KWON, Hyun Eok SHIN, Dong Min LEE, Yung Bin CHUNG
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Publication number: 20230367364Abstract: A light control film includes a first light absorbing layer, a first organic layer disposed on the first light absorbing layer, and a second light absorbing layer disposed on the first organic layer. At least one of the first light absorbing layer and the second light absorbing layer includes a first layer including a metal oxide, a second layer disposed on the first layer and including a metal, and a third layer disposed on the second layer and including a metal oxide.Type: ApplicationFiled: April 10, 2023Publication date: November 16, 2023Applicant: Samsung Display Co., LTD.Inventors: Hyun Eok SHIN, Ju Hyun LEE, Joon Yong PARK
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Publication number: 20230317902Abstract: A wiring substrate and a display device including the same are provided. The display device includes a first substrate including a display area and a pad area disposed on one side of the display area, and a plurality of conductive layers including a plurality of wires and conductive patterns disposed in the display area and the pad area on the first substrate, wherein at least one of the conductive layers includes a copper-indium alloy and comprises a metal layer having a grain size equal to or less than about 140 nm.Type: ApplicationFiled: December 27, 2022Publication date: October 5, 2023Applicant: Samsung Display Co., LTD.Inventors: Dong Min LEE, Hyun Ah SUNG, Young Rok KIM, Joon Yong PARK, Hyun Eok SHIN
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Publication number: 20230320182Abstract: A display device includes a substrate including a pixel area and a dummy area, wherein the pixel area includes a transistor disposed on the substrate, a first electrode electrically connected to the transistor, a second electrode overlapping the first electrode, and a functional layer and an emission layer disposed between the first electrode and the second electrode, and the dummy area includes a first dummy electrode disposed on the substrate, and a dummy insulating layer covering the side of at least part of the first dummy electrode.Type: ApplicationFiled: March 16, 2023Publication date: October 5, 2023Inventors: Joon Yong PARK, Sung Joo KWON, Hyun Eok SHIN, Dong Min LEE
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Publication number: 20230307487Abstract: A display device includes a display area and a pad area on a side of the display area, a plurality of conductive layers on a first substrate in the display area and the pad area and comprising a wiring and a conductive pattern, a via layer on the plurality of conductive layers, a plurality of electrodes on the via layer in the display area and spaced apart from each other, and a light emitting element on at least one of the plurality of electrodes. At least one of the conductive layers includes a first metal layer, a second metal layer on the first metal layer, and a third metal layer on the second metal layer. The second metal layer includes copper (Cu), the third metal layer includes a copper alloy, and a grain size of the third metal layer is smaller than a grain size of the second metal layer.Type: ApplicationFiled: December 21, 2022Publication date: September 28, 2023Applicant: Samsung Display Co., LTD.Inventors: Dong Min LEE, Hyun Ah SUNG, Tae Wook KANG, Young Rok KIM, Kyu Soon PARK, Joon Yong PARK, Hyun Eok SHIN, Jong Hyun CHOUNG
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Publication number: 20230253530Abstract: There are provided a display device and a method of manufacturing the display device. The display device includes: electrodes spaced apart from each other; light emitting elements disposed between the electrodes; and connection electrodes disposed on the light emitting elements. Each of the connection electrodes includes a first conductive layer and a second conductive layer disposed on the first conductive layer, and a work function of the first conductive layer is lower than a work function of the second conductive layer.Type: ApplicationFiled: November 16, 2022Publication date: August 10, 2023Applicant: Samsung Display Co., LTD.Inventors: Joon Yong PARK, Sung Joo KWON, Hyun Eok SHIN, Hyun Ah SUNG, Dong Min LEE, Ju Hyun LEE
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Publication number: 20230086407Abstract: A conductive pattern is disclosed that includes a conductive layer including aluminum, a first capping layer disposed on the conductive layer and including titanium, and a second capping layer disposed on the first capping layer and including titanium nitride. A mixed region in which the aluminum and the titanium are mixed with each other is disposed in at least portions of the conductive layer and the first capping layer.Type: ApplicationFiled: April 11, 2022Publication date: March 23, 2023Inventors: Hyun Eok SHIN, Do Keun SONG, Dong Min LEE, Joon Yong PARK, Hyun Ah SUNG, Yun Jong YEO, Dae Won CHOI
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Publication number: 20220406817Abstract: A display device includes conductive layers including wires and conductive patterns in a display area and a pad area, a via layer on the conductive layers, a first electrode and a second electrode on the via layer in the display area and spaced apart from each other, a first insulating layer on the first electrode and the second electrode, light emitting elements on the first electrode and the second electrode spaced apart from each other on the first insulating layer, and a first connection electrode on the first electrode and electrically contacting the light emitting elements, and a second connection electrode on the second electrode and electrically contacting the light emitting elements, each of the conductive layers includes a first metal layer and a second metal layer on the first metal layer, and the second metal layer contains copper and has a grain size of about 155 nm or less.Type: ApplicationFiled: February 15, 2022Publication date: December 22, 2022Applicant: Samsung Display Co., LTD.Inventors: Joon Yong PARK, Gyung Min BAEK, Shin Il CHOI, Do Keun SONG, Young Rok KIM, Jong Hyun CHOUNG
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Publication number: 20220254863Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.Type: ApplicationFiled: April 29, 2022Publication date: August 11, 2022Inventors: Kyeong Su KO, Joon Yong Park, Gyung Min Baek, Hyun Min Cho, Dae Won Choi