Patents by Inventor Gun Sang Yoon
Gun Sang 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: 20230127424Abstract: Provided are a light guide panel and a lighting device including the same. The light guide panel includes a base substrate and a light-scattering layer provided on at least one of top and bottom surfaces of the base substrate with a matrix forming a layer on the base substrate and light-scattering particles dispersed in the matrix. A first portion of the light-scattering layer is distant from a light incident surface of the base substrate. A second portion of the light-scattering layer is located closer to the light incident surface than the first portion.Type: ApplicationFiled: March 30, 2021Publication date: April 27, 2023Inventors: Donghyun Kim, Gun-sang Yoon
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Patent number: 11112559Abstract: A method of fabricating a light guide plate (LGP), an LGP fabricated thereby, and an illumination device having the same. The method includes preparing an LGP and fabricating a light-scattering layer by printing a printing solution including light-scattering particles on an overall bottom surface of the LGP. The light-scattering layer may be fabricated by at least one of a first method of controlling the printing such that the density of the light-scattering particles gradually increases with increases in a distance from the light-emitting diode facing a side surface of the LGP and a second method of controlling the printing such that the thickness of the light-scattering layer gradually increases with increases in the distance from the light-emitting diode. A luminous point through can be prevented from being viewed by a front observer, a process can be simplified, and light distribution similar to Lambertian distribution can be obtained.Type: GrantFiled: April 3, 2019Date of Patent: September 7, 2021Assignee: CORNING INCORPORATEDInventors: Euisoo Kim, Seong-ryong Ryoo, Gun-sang Yoon
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Publication number: 20200103583Abstract: A method of fabricating a light guide plate (LGP), an LGP fabricated thereby, and an illumination device having the same. The method includes preparing an LGP and fabricating a light-scattering layer by printing a printing solution including light-scattering particles on an overall bottom surface of the LGP. The light-scattering layer may be fabricated by at least one of a first method of controlling the printing such that the density of the light-scattering particles gradually increases with increases in a distance from the light-emitting diode facing a side surface of the LGP and a second method of controlling the printing such that the thickness of the light-scattering layer gradually increases with increases in the distance from the light-emitting diode. A luminous point through can be prevented from being viewed by a front observer, a process can be simplified, and light distribution similar to Lambertian distribution can be obtained.Type: ApplicationFiled: April 3, 2019Publication date: April 2, 2020Inventors: Euisoo Kim, Seong-ryong Ryoo, Gun-sang Yoon
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Patent number: 10454071Abstract: The present invention relates to a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same and, more particularly, to a light extraction substrate for an organic light emitting element exhibiting a good light extraction efficiency, a method for manufacturing the same, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same, the light extraction substrate comprising a first light extraction layer having a plurality of pores formed therein and made of a first metal oxide doped with a dopant; and a second light extraction layer formed on the first light extraction layer and made of a second metal oxide which has a different atomic diffusion rate compared to the first metal oxide.Type: GrantFiled: November 12, 2014Date of Patent: October 22, 2019Assignee: Corning Precision Materials Co., Ltd.Inventors: Hyun Hee Lee, Hong Yoon, Seo Hyun Kim, Kyoung Wook Park, Jeong Woo Park, June Hyong Park, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Eun Ho Choi
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Publication number: 20190019995Abstract: A method of patterning a multilayer structure and a method of manufacturing a light extraction substrate of an OLED device. A first layer or a scattering layer having a number of voids therein is formed on a first surface of a substrate. A second layer or a planarization layer is formed on the first layer or the scattering layer such that a surface of a first area of the first layer or the scattering layer is exposed, wherein a portion of a material of the second layer or the planarization layer is infiltrated into the number of voids to be attached to at least a portion of the first surface of the substrate. The first area of the first layer or the scattering layer is removed.Type: ApplicationFiled: July 13, 2018Publication date: January 17, 2019Inventors: Donghyun Kim, Euisoo Kim, Hyunhee Lee, JooYoung Lee, Gun-sang Yoon
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Patent number: 10100985Abstract: The present invention relates to an organic light-emitting device for lighting, and more specifically relates to an organic light-emitting device for lighting whereby it is possible to achieve excellent brightness by increasing the light-emitting area per unit area of an organic light-emitting element. For this purpose, the present invention provides an organic light-emitting device comprising: a first substrate and a second substrate disposed facing each other; a frame section which is formed between the first substrate and the second substrate, and is formed on the periphery of the first substrate and the second substrate so as to hermetically close the space between the first substrate and the second substrate; and a flexible organic light-emitting element which is disposed inside of the space, and of which at least one part has a curved surface.Type: GrantFiled: December 2, 2014Date of Patent: October 16, 2018Assignee: Corning Precision Materials Co., Ltd.Inventors: Kyoung Wook Park, June Hyong Park, Hong Yoon, Seo Hyun Kim, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Hyun Hee Lee, Eun Ho Choi
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Patent number: 9893320Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting element, a light extraction substrate for an organic light emitting element, and an organic light emitting element that includes the same and, more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting element, a light extraction substrate for an organic light emitting element, and an organic light emitting element that includes the same, which can enhance the light extraction efficiency of an organic light emitting element and, in particular, can reduce the process cost.Type: GrantFiled: December 29, 2015Date of Patent: February 13, 2018Assignee: Corning Precision Materials Co., Ltd.Inventors: Jang Dae Youn, Min Seok Kim, Seo Hyun Kim, Gun Sang Yoon, Hong Yoon
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Publication number: 20170358776Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting element, a light extraction substrate for an organic light emitting element, and an organic light emitting element that includes the same and, more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting element, a light extraction substrate for an organic light emitting element, and an organic light emitting element that includes the same, which can enhance the light extraction efficiency of an organic light emitting element and, in particular, can reduce the process cost.Type: ApplicationFiled: December 29, 2015Publication date: December 14, 2017Applicant: Corning Precision Materials Co., Ltd.Inventors: Jang Dae Youn, Min Seok Kim, Seo Hyun Kim, Gun Sang Yoon, Hong Yoon
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Patent number: 9825257Abstract: A light extraction substrate for an organic light-emitting device (OLED) which can improve the brightness of a display or an illumination system to which an OLED is applied by improving light extraction efficiency and a method of manufacturing the same. The light extraction substrate for an OLED includes an oxide or nitride thin film formed on a substrate body. The oxide or nitride thin film includes a base layer formed on the substrate body, a first texture formed on the base layer, the first texture having a plurality of first protrusions which protrude continuously or discontinuously from the base layer, and a second texture having a plurality of second protrusions which protrude continuously or discontinuously from each outer surface of the first protrusions.Type: GrantFiled: June 11, 2013Date of Patent: November 21, 2017Assignee: Corning Precision Materials Co., Ltd.Inventors: June Hyoung Park, Young Zo Yoo, Tae Jung Park, Seo Hyun Kim, Il Hee Baek, Gun Sang Yoon, Eun Ho Choi
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Publication number: 20170263893Abstract: The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting diode and, more specifically, to a method for manufacturing a light extraction substrate for an organic light-emitting diode, which can improve light extraction efficiency of an organic light-emitting diode and can also remarkably reduce a manufacturing process, manufacturing costs, and manufacturing time.Type: ApplicationFiled: September 3, 2015Publication date: September 14, 2017Applicant: Corning Precision Materials Co., Ltd.Inventors: Dong Hyun Kim, Seo Hyun Kim, Eui Soo Kim, Kyoung Wook Park, Il Hee Baek, Chang Min Song, Gun Sang Yoon, Hong Yoon, Joo Young Lee, Hyun Hee Lee, Eun Ho Choi
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Patent number: 9711762Abstract: The present invention relates to a substrate for an organic light-emitting diode, a method for manufacturing the same, and an organic light-emitting diode comprising the same, and more particularly, to a substrate for an organic light-emitting diode, the substrate having excellent productivity and manufacturing efficiency as well as an improved light extraction efficiency, a method for manufacturing the same, and an organic light-emitting diode comprising the same.Type: GrantFiled: August 12, 2014Date of Patent: July 18, 2017Assignee: Corning Precision Materials Co., Ltd.Inventors: Gun Sang Yoon, June Hyong Park, Il Hee Baek
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Publication number: 20160369956Abstract: The present invention relates to an organic light-emitting device for lighting, and more specifically relates to an organic light-emitting device for lighting whereby it is possible to achieve excellent brightness by increasing the light-emitting area per unit area of an organic light-emitting element. For this purpose, the present invention provides an organic light-emitting device comprising: a first substrate and a second substrate disposed facing each other; a frame section which is formed between the first substrate and the second substrate, and is formed on the periphery of the first substrate and the second substrate so as to hermetically close the space between the first substrate and the second substrate; and a flexible organic light-emitting element which is disposed inside of the space, and of which at least one part has a curved surface.Type: ApplicationFiled: December 2, 2014Publication date: December 22, 2016Applicant: Corning Precision Materials Co., Ltd.Inventors: Kyoung Wook Park, June Hyong Park, Hong Yoon, Seo Hyun Kim, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Hyun Hee Lee, Eun Ho Choi
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Patent number: 9514857Abstract: A zinc oxide (ZnO) precursor and a method of depositing a ZnO-based thin film using the same, with which a high-quality and high-purity ZnO-based thin film can be deposited. The ZnO precursor includes a mixture solvent containing at least two organic solvents which are mixed and a source material comprising diethyl zinc or dimethyl zinc which is diluted in the mixture solvent.Type: GrantFiled: October 9, 2013Date of Patent: December 6, 2016Assignee: Corning Precision Materials Co., Ltd.Inventors: SooHo Park, JongSe Park, Young Zo Yoo, Joo Young Lee, Seo Hyun Kim, Gun Sang Yoon, Myong Woon Kim, Hyung Soo Shin, Seung Ho Yoo, Sang Do Lee, Sang Ick Lee, Sang Jun Yim
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Publication number: 20160329525Abstract: The present invention relates to a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same and, more particularly, to a light extraction substrate for an organic light emitting element exhibiting a good light extraction efficiency, a method for manufacturing the same, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same, the light extraction substrate comprising a first light extraction layer having a plurality of pores formed therein and made of a first metal oxide doped with a dopant; and a second light extraction layer formed on the first light extraction layer and made of a second metal oxide which has a different atomic diffusion rate compared to the first metal oxide.Type: ApplicationFiled: November 12, 2014Publication date: November 10, 2016Applicant: Corning Precision Materials Co., Ltd.Inventors: Hyun Hee Lee, Hong Yoon, Seo Hyun Kim, Kyoung Wook Park, Jeong Woo Park, June Hyong Park, Il Hee Baek, Gun Sang Yoon, Joo Young Lee, Eun Ho Choi
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Patent number: 9464351Abstract: A method of fabricating a light-scattering substrate, a light-scattering substrate fabricated by the same method, and an organic light-emitting device (OLED) including the same light-scattering substrate, in which a light-scattering layer of the light-scattering substrate can improve a light extraction efficiency. The method fabricates the light-scattering substrate by chemical vapor deposition, and includes loading a base substrate into a chamber, and forming a light-scattering layer on the base substrate by supplying a Ti source and an oxidizer including H2O into the chamber. In the process of forming the light-scattering layer, the mole ratio of the H2O with respect to the Ti is 10 or greater.Type: GrantFiled: June 3, 2014Date of Patent: October 11, 2016Assignee: CORNING PRECISION MATERIALS CO., LTD.Inventors: Gun Sang Yoon, Hyun Bin Kim, June Hyoung Park
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Publication number: 20160197314Abstract: The present invention relates to a substrate for an organic light-emitting diode, a method for manufacturing the same, and an organic light-emitting diode comprising the same, and more particularly, to a substrate for an organic light-emitting diode, the substrate having excellent productivity and manufacturing efficiency as well as an improved light extraction efficiency, a method for manufacturing the same, and an organic light-emitting diode comprising the same.Type: ApplicationFiled: August 12, 2014Publication date: July 7, 2016Applicant: Corning Precision Materials Co., Ltd.Inventors: Gun Sang Yoon, June Hyong Park, Il Hee Baek
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Patent number: 9257312Abstract: A metal oxide thin film substrate which can increase light trapping efficiency and light extraction efficiency, a method of fabricating the same and a photovoltaic cell and organic light-emitting device (OLED) including the same. The metal oxide thin film substrate includes a base substrate, and a metal oxide thin film formed on the base substrate. The metal oxide thin film has voids which are formed inside the metal oxide thin film to scatter light.Type: GrantFiled: August 7, 2013Date of Patent: February 9, 2016Assignee: Corning Precision Materials Co., Ltd.Inventors: YoungZo Yoo, Seo Hyun Kim, June Hyoung Park, Il Hee Baek, Gun Sang Yoon, Hyunhee Lee, Eun Ho Choi
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Patent number: 9118034Abstract: A metal oxide thin film substrate for an organic light-emitting device (OLED) which exhibits superior light extraction efficiency and can be easily fabricated at low cost and a method of fabricating the same and a method of fabricating the same. The metal oxide thin film substrate for an OLED includes a base substrate and a metal oxide thin film formed on the base substrate, the metal oxide thin film being made of a mixture of at least two metal oxides having different refractive indices.Type: GrantFiled: October 9, 2013Date of Patent: August 25, 2015Assignee: Samsung Corning Precision Materials Co., Ltd.Inventors: Joo Young Lee, June Hyoung Park, Young Zo Yoo, Seo Hyun Kim, Jeong Woo Park, Il Hee Baek, Gun Sang Yoon, Hyunhee Lee, Eun Ho Choi
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Publication number: 20140356527Abstract: A method of fabricating a light-scattering substrate, a light-scattering substrate fabricated by the same method, and an organic light-emitting device (OLED) including the same light-scattering substrate, in which a light-scattering layer of the light-scattering substrate can improve a light extraction efficiency. The method fabricates the light-scattering substrate by chemical vapor deposition, and includes loading a base substrate into a chamber, and forming a light-scattering layer on the base substrate by supplying a Ti source and an oxidizer including H2O into the chamber. In the process of forming the light-scattering layer, the mole ratio of the H2O with respect to the Ti is 10 or greater.Type: ApplicationFiled: June 3, 2014Publication date: December 4, 2014Applicant: CORNING PRECISION MATERIALS CO., LTD.Inventors: Gun Sang Yoon, Hyun Bin Kim, June Hyoung Park
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Patent number: 8828766Abstract: A light-emitting device and a method of fabricating the same, in which the light emission characteristics of the light-emitting device in the UV range are maximized such that a high-efficiency light-emitting device can be produced at low cost. For this, the method includes the step of forming a zinc oxide light-emitting layer on a base substrate, the zinc oxide light-emitting layer including zinc oxide doped with a dopant; and activating the dopant by rapidly heat-treating the zinc oxide light-emitting layer, so that light emission in an ultraviolet range is increased.Type: GrantFiled: April 17, 2012Date of Patent: September 9, 2014Assignee: Samsung Corning Precision Materials Co., Ltd.Inventors: YoungZo Yoo, SeoHyun Kim, JeongWoo Park, Taejung Park, Gun Sang Yoon