Patents by Inventor Sang Hyun Ahn
Sang Hyun Ahn 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: 9897748Abstract: Discussed is a display device. The display device can include an optical frame, which provides light up to an edge of a display panel, thereby enlarging an active area of the display device.Type: GrantFiled: December 11, 2014Date of Patent: February 20, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Young Hun Jeong, Sang Hyun Ahn, Yong Ik Hwang, Hee Kyung Lee, Young Kyu Bang, Jin Seo Park, Chi Yong Kim
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Publication number: 20180010012Abstract: This invention relates to a resin composition for a hard coating, including a siloxane resin configured such that compounds including an alkoxysilane and an alkoxy metal compound are chemically bound, and to a hard coating film including a hard coating layer formed using the resin composition.Type: ApplicationFiled: December 31, 2015Publication date: January 11, 2018Applicant: KOLON INDUSTRIES, INC.Inventors: Sang Hyun AHN, Hak Yong WOO, Hak Gee JUNG, Dong Hee LEE, Byung Joon AN, Hang Geun KIM
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Patent number: 9846273Abstract: Disclosed is a backlight unit and a display device including the same. The backlight unit includes a backlight configured to supply light in one direction, a case that accommodates the backlight, and a cabinet coupled to a top of the case, and configured to include a side wall which faces one direction. The inside of the case has a hive structure. At least one edge region of the case includes a stepped portion which is lower in height than a central region of the case to accommodate the cabinet.Type: GrantFiled: December 19, 2014Date of Patent: December 19, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Sang Hyun Ahn, Young Hun Jeong, Choun Sung Kang, Yong Ik Hwang, Yong Seok Lee, Hee Kyung Lee, Chi Yong Kim
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Publication number: 20170051419Abstract: Provided is an electrocatalyst for anion exchange membrane water electrolysis, including a carbonaceous material, and nickel electrodeposited on the carbonaceous material, wherein nickel is partially substituted with platinum and the substitution with platinum provides increased hydrogen evolution activity as compared to the same electrocatalyst before substitution with platinum. Also provided are a method for preparing the electrocatalyst and an anion exchange membrane water electrolyzer using the same. The nickel electrocatalyst coated with an ultralow loading amount of platinum for anion exchange membrane water electrolysis shows excellent hydrogen evolution activity and has a small thickness of catalyst, thereby providing high mass transfer and high catalyst availability.Type: ApplicationFiled: August 19, 2016Publication date: February 23, 2017Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jong Hyun JANG, Soo-Kil KIM, Sang Hyun AHN, Hyoung-Juhn KIM, Jin Young KIM, Sung Jong YOO, Dirk HENKENSMEIER, Jonghee HAN, Jaeyune RYU
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Publication number: 20160340792Abstract: A process for depositing a plurality of layers of iridium on a substrate includes: contacting the substrate with an electrolyte composition including: iridium cations protons; biasing the substrate at a first potential; forming iridium on the substrate at the first potential of the substrate; disposing hydrogen on the substrate; self-terminating the forming of iridium on the substrate in response to increasing a coverage of hydrogen on the substrate; oxidizing hydrogen on the substrate by changing a potential of the substrate from the first potential to a second potential; and changing the potential of the substrate from the second potential to a third potential for forming additional iridium on the substrate to deposit a plurality of layers of iridium on the substrate, such that forming the additional iridium on the substrate occurs at the third potential in response to oxidizing the hydrogen on the substrate at the second potential.Type: ApplicationFiled: May 4, 2016Publication date: November 24, 2016Inventors: THOMAS P. MOFFAT, YIHUA LIU, SANG HYUN AHN
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Patent number: 9413014Abstract: The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.Type: GrantFiled: February 4, 2014Date of Patent: August 9, 2016Assignees: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, GL MATERIALS INC.Inventors: Sung Jong Yoo, Hee-young Park, Jong Hyun Jang, Hyoung-Juhn Kim, Tae-Hoon Lim, Sang Young Lee, Sang Hyun Ahn, Namgee Jung, Suk Woo Nam, Eun Ae Cho, Seok Keun Koh
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Publication number: 20150288203Abstract: A portable battery charger, which can be kept in a neatly arranged state with a wound cable, thereby being easily and efficiently carried, and in which both a contact terminal of a connector that will be connected to a mobile phone and pin terminals of a charging adapter are hidden from the outside, thereby being efficiently protected. In the battery charger, the connector and the charging adapter are configured to be combined with each other, and a cable winding part on which the cable will be wound is formed on a portion at which the connector and the charging adapter face each other, so the cable can be kept in a neatly arranged state, and the contact terminal can be protected by being hidden from the outside, thus the charger can prevent contamination of the contact terminal by impurities and can prevent breakage of the contact terminal by external shock.Type: ApplicationFiled: March 31, 2014Publication date: October 8, 2015Inventor: Sang Hyun Ahn
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Publication number: 20150177450Abstract: Disclosed is a backlight unit and a display device including the same. The backlight unit includes a backlight configured to supply light in one direction, a case that accommodates the backlight, and a cabinet coupled to a top of the case, and configured to include a side wall which faces one direction. The inside of the case has a hive structure. At least one edge region of the case includes a stepped portion which is lower in height than a central region of the case to accommodate the cabinet.Type: ApplicationFiled: December 19, 2014Publication date: June 25, 2015Inventors: Sang Hyun AHN, Young Hun JEONG, Choun Sung KANG, Yong Ik HWANG, Yong Seok LEE, Hee Kyung LEE, Chi Yong KIM
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Publication number: 20150168640Abstract: Discussed is a display device. The display device can include an optical frame, which provides light up to an edge of a display panel, thereby enlarging an active area of the display device.Type: ApplicationFiled: December 11, 2014Publication date: June 18, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Young Hun JEONG, Sang Hyun AHN, Yong Ik HWANG, Hee Kyung LEE, Young Kyu BANG, Jin Seo PARK, Chi Yong KIM
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Publication number: 20140221192Abstract: The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.Type: ApplicationFiled: February 4, 2014Publication date: August 7, 2014Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sung Jong YOO, Hee-young PARK, Jong Hyun JANG, Hyoung-Juhn KIM, Tae-Hoon LIM, Sang Young LEE, Sang Hyun AHN, Namgee JUNG, Suk Woo NAM, Eun Ae CHO
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Patent number: 8684587Abstract: A backlight unit is capable of preventing generation of mura such bright lines and dark lines. The backlight unit includes a light guide panel divided into a plurality of light guide blocks for local dimming driving, a first block partitioning unit formed as a groove between respective adjacent light guide blocks on a lower surface of the light guide panel, and a point light source received in the first block partitioning unit.Type: GrantFiled: December 29, 2009Date of Patent: April 1, 2014Assignee: LG Display Co., Ltd.Inventors: Hee-Cheoul Kim, Ji-Geun Nam, Choun-Sung Kang, Jin-Taek Choi, Sang-Hyun Ahn, Jong-Bum Choi, Seung-Soo Yang
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Patent number: 8547500Abstract: A backlight unit that includes a plurality of light source packages configured to each include a metal printed-circuit-board (PCB) and light emitting diodes; a plurality of light guide plates disposed parallel to the light source packages, respectively; at least one fixation member formed on an incident surface of each light guide plate corresponding to one side surface of each light guide plate; and a bottom cover configured to include a plurality of fixation holes which are formed to receive and secure the respective fixation members.Type: GrantFiled: December 18, 2009Date of Patent: October 1, 2013Assignee: LG Display Co., Ltd.Inventors: Choun Sung Kang, Ji Geun Nam, Jin Taek Choi, Sang Hyun Ahn, Hee Cheoul Kim, Jong Bum Choi, Seung Soo Yang
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Patent number: 8212967Abstract: A backlight unit includes a cover bottom having a plurality of light source groups each with a plurality of light sources thereon, wherein the light sources with the higher brightness are arranged in the light source group closer to a center portion of the cover bottom, and the light sources with the lower brightness are arranged in the light source group closer to a periphery of the cover bottom.Type: GrantFiled: December 29, 2008Date of Patent: July 3, 2012Assignee: LG Display Co., LtdInventors: Hee Jeong Park, Sang Hyun Ahn
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Patent number: 8167473Abstract: A backlight unit capable of implementing slimness and preventing stain defects is disclosed. The backlight unit includes a plurality of LEDs arranged in a fixed interval, a reflection sheet disposed under the LEDs and configured to reflect light, a diffusion plate disposed on the LEDs and configured to diffuse light, and a plurality of inversed pyramid patterns formed along a diagonal direction in the center of one side of the diffusion plate on the upper surface of the diffusion plate. The plural LEDs include a plurality of odd-numbered line LEDs and a plurality of even-numbered line LEDs arranged in zigzags.Type: GrantFiled: June 17, 2009Date of Patent: May 1, 2012Assignee: LG Display Co. Ltd.Inventor: Sang Hyun Ahn
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Publication number: 20110013110Abstract: A backlight unit that includes a plurality of light source packages configured to each include a metal printed-circuit-board (PCB) and light emitting diodes; a plurality of light guide plates disposed parallel to the light source packages, respectively; at least one fixation member formed on an incident surface of each light guide plate corresponding to one side surface of each light guide plate; and a bottom cover configured to include a plurality of fixation holes which are formed to receive and secure the respective fixation members.Type: ApplicationFiled: December 18, 2009Publication date: January 20, 2011Inventors: Choun Sung Kang, Ji Geun Nam, Jin Taek Choi, Sang Hyun Ahn, Hee Cheoul Kim, Jong Bum Choi, Seung Soo Yang
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Publication number: 20110013376Abstract: A backlight unit is capable of preventing generation of mura such bright lines and dark lines. The backlight unit includes a light guide panel divided into a plurality of light guide blocks for local dimming driving, a first block partitioning unit formed as a groove between respective adjacent light guide blocks on a lower surface of the light guide panel, and a point light source received in the first block partitioning unit.Type: ApplicationFiled: December 29, 2009Publication date: January 20, 2011Inventors: Hee-Cheoul Kim, Ji-Geun Nam, Choun-Sung Kang, Jin-Taek Choi, Sang-Hyun Ahn, Jong-Bum Choi, Seung-Soo Yang
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Publication number: 20100124047Abstract: A backlight unit capable of implementing slimness and preventing stain defects is disclosed. The backlight unit includes a plurality of LEDs arranged in a fixed interval, a reflection sheet disposed under the LEDs and configured to reflect light, a diffusion plate disposed on the LEDs and configured to diffuse light, and a plurality of inversed pyramid patterns formed along a diagonal direction in the center of one side of the diffusion plate on the upper surface of the diffusion plate. The plural LEDs include a plurality of odd-numbered line LEDs and a plurality of even-numbered line LEDs arranged in zigzags.Type: ApplicationFiled: June 17, 2009Publication date: May 20, 2010Inventor: Sang Hyun AHN
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Publication number: 20100053496Abstract: A backlight unit includes a cover bottom having a plurality of light source groups each with a plurality of light sources thereon, wherein the light sources with the higher brightness are arranged in the light source group closer to a center portion of the cover bottom, and the light sources with the lower brightness are arranged in the light source group closer to a periphery of the cover bottom.Type: ApplicationFiled: December 29, 2008Publication date: March 4, 2010Applicant: LG DISPLAY CO., LTD.Inventors: Hee Jeong Park, Sang Hyun Ahn
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Patent number: 7347679Abstract: An apparatus and method for manufacturing ultra-fine particles using an electrospray device is disclosed. One or more capillary provided at its tip with a nozzle is positioned within a guide duct and precursors such as metal organic materials and metal halogen compounds, or nonvolatile substances or volatile substances are supplied to the capillary. Voltages are applied to the capillary and the guide duct, respectively, so that a voltage difference is generated therebetween and the highly charged liquid droplets from the capillary are sprayed. The sprayed liquid droplets are carried along the guide duct together with carrier gas injected into the guide duct. When heat energy is applied to the liquid droplets, chemical reactions of the liquid droplets occur. A collecting plate positioned in front of the guide duct collects ultra-fine particles formed by the chemical reactions.Type: GrantFiled: February 25, 2005Date of Patent: March 25, 2008Inventors: Kang Ho Ahn, Jeong Ho Ahn, Sang Hyun Ahn
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Publication number: 20060072278Abstract: An apparatus and method for manufacturing particles using corona discharge is disclosed. A discharge electrode is provided within a guide duct and reaction gases are supplied into the guide duct. A high voltage is applied to the discharge electrode and a low voltage is applied to the guide duct to generate a voltage difference therebetween. When heat energy is applied to the reaction gases, chemical reactions occur in the gases and particles are made by the chemical reactions. The particles form new particles centering around ions as nuclei which are generated by corona discharge and moves along the guide duct. A collecting plate positioned in front of the guide duct collects the particles.Type: ApplicationFiled: November 12, 2002Publication date: April 6, 2006Inventors: Kang-Ho Ahn, Jeong-Ho Ahn, Sang-Hyun Ahn