Patents by Inventor Jung Doo Kim
Jung Doo Kim 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: 20250070593Abstract: A device for controlling a line connection type fuel cell system and a method for the same are provided. The device for controlling a line connection type fuel cell system includes a plurality of fuel cell modules, an Alternating Current (AC) voltage generator, and a controller to activate the AC voltage generator to generate an AC voltage corresponding to power supplied from a system, and to control the plurality of fuel cell modules to generate a current in synchronization with the AC voltage.Type: ApplicationFiled: November 12, 2024Publication date: February 27, 2025Inventors: Yong Doo Son, Jung Tak Kang, Won Jung Kim, Jun Seok Seo
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Patent number: 11740551Abstract: The present application relates to a method for producing a substrate which includes a step of exposing and developing a photosensitive resin composition layer formed on a surface of a substrate base layer to produce spacers. The method for producing a substrate of the present application can uniformly form spacers having a height according to a desired cell gap and can also freely control the height of the spacers.Type: GrantFiled: November 23, 2018Date of Patent: August 29, 2023Inventors: Jun Haeng Lee, Yeon Keun Lee, Jung Doo Kim, Han Min Seo, Cheol Ock Song, Nam Seok Bae
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Patent number: 11262636Abstract: A transmittance-variable film having a double-cell structure or a single-cell structure capable of suppressing formation of bubbles inside a liquid crystal layer or at the interface between a base film and a pressure-sensitive adhesive layer under high-temperature and high-humidity reliability conditions is provided. An exemplary transmittance-variable film can be applied to various applications, including various construction or automotive materials that require control of transmittance, or eyewear, such as augmented reality experience or sports goggles, sunglasses or helmets.Type: GrantFiled: December 19, 2018Date of Patent: March 1, 2022Inventors: Jung Doo Kim, Hyun Jun Lee, Yeon Keun Lee, Joo Hyun Lee, Dong Hyun Oh
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Patent number: 11175558Abstract: A liquid crystal cell, a manufacturing method thereof and a use thereof are provided in the present disclosure. The liquid crystal cell is in a normally transparent mode, and has excellent transmittance-variable characteristics in a transparent mode and a scattering mode and excellent haze characteristics in the scattering mode. Such liquid crystal cell may be applied to various light modulation devices, such as a smart window, a window protective film, a flexible display element, a light shielding plate for transparent displays, an active retarder for 3D image displays or a viewing angle control film.Type: GrantFiled: December 20, 2018Date of Patent: November 16, 2021Inventors: Deok Hwan Kim, Yeon Keun Lee, Jung Doo Kim, Jun Haeng Lee
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Patent number: 11131897Abstract: A liquid crystal cell and a manufacturing method thereof and a use thereof are provided in the present disclosure. The liquid crystal cell is in a normally transparent mode, and has excellent transmittance-variable characteristics in a transparent mode and a scattering mode and excellent haze characteristics in the scattering mode. Such liquid crystal cell may be applied to various light modulation devices, such as a smart window, a window protective film, a flexible display element, a light shielding plate for transparent displays, an active retarder for 3D image displays or a viewing angle control film.Type: GrantFiled: December 20, 2018Date of Patent: September 28, 2021Inventors: Deok Hwan Kim, Yeon Keun Lee, Jung Doo Kim, Jun Haeng Lee
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Publication number: 20210116736Abstract: A liquid crystal cell, a manufacturing method thereof and a use thereof are provided in the present disclosure. The liquid crystal cell is in a normally transparent mode, and has excellent transmittance-variable characteristics in a transparent mode and a scattering mode and excellent haze characteristics in the scattering mode. Such liquid crystal cell may be applied to various light modulation devices, such as a smart window, a window protective film, a flexible display element, a light shielding plate for transparent displays, an active retarder for 3D image displays or a viewing angle control film.Type: ApplicationFiled: December 20, 2018Publication date: April 22, 2021Applicant: LG Chem, Ltd.Inventors: Deok Hwan Kim, Yeon Keun Lee, Jung Doo Kim, Jun Haeng Lee
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Publication number: 20210080768Abstract: A liquid crystal cell and a manufacturing method thereof and a use thereof are provided in the present disclosure. The liquid crystal cell is in a normally transparent mode, and has excellent transmittance-variable characteristics in a transparent mode and a scattering mode and excellent haze characteristics in the scattering mode. Such liquid crystal cell may be applied to various light modulation devices such as a smart window, a window protective film, a flexible display element, a light shielding plate for transparent displays, an active retarder for 3D image displays or a viewing angle control film.Type: ApplicationFiled: December 20, 2018Publication date: March 18, 2021Applicant: LG Chem, Ltd.Inventors: Deok Hwan Kim, Yeon Keun Lee, Jung Doo Kim, Jun Haeng Lee
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Publication number: 20200409253Abstract: The present application relates to a method for producing a substrate which includes a step of exposing and developing a photosensitive resin composition layer formed on a surface of a substrate base layer to produce spacers. The method for producing a substrate of the present application can uniformly form spacers having a height according to a desired cell gap and can also freely control the height of the spacers.Type: ApplicationFiled: November 23, 2018Publication date: December 31, 2020Applicant: LG Chem, Ltd.Inventors: Jun Haeng Lee, Yeon Keun Lee, Jung Doo Kim, Han Min Seo, Cheol Ock Song, Nam Seok Bae
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Publication number: 20200319504Abstract: A transmittance-variable film having a double-cell structure or a single-cell structure capable of suppressing formation of bubbles inside a liquid crystal layer or at the interface between a base film and a pressure-sensitive adhesive layer under high-temperature and high-humidity reliability conditions is provided. An exemplary transmittance-variable film can be applied to various applications, including various construction or automotive materials that require control of transmittance, or eyewear, such as augmented reality experience or sports goggles, sunglasses or helmets.Type: ApplicationFiled: December 19, 2018Publication date: October 8, 2020Applicant: LG Chem, Ltd.Inventors: Jung Doo Kim, Hyun Jun Lee, Yeon Keun Lee, Joo Hyun Lee, Dong Hyun Oh
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Publication number: 20170184277Abstract: A light emitting module includes a circuit board, a light emitting device mounted on the circuit board, and a lens dispersing light emitted from the light emitting device. The lens includes a lower surface formed with a concave section defining a light incident surface through which light enters the lens, an upper surface through which light exits the lens, and legs coupled to the circuit board and disposed farther outside the lens than an area of the upper surface. The light emitting device is disposed within the concave section of the lens.Type: ApplicationFiled: March 15, 2017Publication date: June 29, 2017Inventors: Sung Ki HWANG, Eun Ju KIM, Jung Doo KIM
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Patent number: 9640745Abstract: A light emitting diode includes: at least one light emitting chip; a substrate including lead frames electrically connected to electrodes of the at least one light emitting chip; a lens disposed on the substrate and enclosing the at least one light emitting chip; and an oil disposed in the lens and the substrate.Type: GrantFiled: December 2, 2013Date of Patent: May 2, 2017Assignee: Seoul Semiconductor Co., Ltd.Inventors: Yu Dae Han, Ki Bum Nam, Jung Doo Kim, Sung Soo Kim
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Patent number: 9618181Abstract: A light emitting module includes a circuit board, a light emitting device mounted on the circuit board, and a lens dispersing light emitted from the light emitting device. The lens includes a lower surface formed with a concave section defining a light incident surface through which light enters the lens, an upper surface through which light exits the lens, and legs coupled to the circuit board and disposed farther outside the lens than an area of the upper surface. The light emitting device is disposed within the concave section of the lens.Type: GrantFiled: July 21, 2015Date of Patent: April 11, 2017Assignee: Seoul Semiconductor Co., Ltd.Inventors: Sung Ki Hwang, Eun Ju Kim, Jung Doo Kim
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Patent number: 9583721Abstract: Provided are a substrate for an organic electronic device, an organic electronic device and lighting. As a substrate for an OED such as an OLED, a substrate capable of providing an organic electronic system having excellent performance and reliability may be provided.Type: GrantFiled: September 22, 2014Date of Patent: February 28, 2017Assignee: LG CHEM, LTD.Inventors: Min Choon Park, Yeon Keun Lee, Yong Sik Ahn, Jung doo Kim, Sang Jun Park, Yong Nam Kim
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Patent number: 9537097Abstract: The present invention relates to a substrate for an organic electrode device, a manufacturing method thereof, and an organic electronic device. An exemplary substrate of the invention, if an organic light emitting element is formed on an upper part of the substrate, can obtain luminance with high emission and uniformity by efficiently controlling the surface resistance of an electrode even when the device is configured into larger sizes.Type: GrantFiled: September 25, 2013Date of Patent: January 3, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Yeon Keun Lee, Kyoung Sik Moon, Seong Soo Jang, Yong Sik Ahn, Jung Doo Kim, Min Choon Park, Jung Bum Kim
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Patent number: 9537098Abstract: The present invention relates to a substrate for an organic electrode device, a manufacturing method thereof, and an organic electronic device. An exemplary substrate of the invention, if an organic light emitting element is formed on an upper part of the substrate, can obtain luminance with high emission and uniformity by efficiently controlling the surface resistance of an electrode even when the device is configured into larger sizes.Type: GrantFiled: October 11, 2013Date of Patent: January 3, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Yeon Keun Lee, Kyoung Sik Moon, Seong Soo Jang, Yong Sik Ahn, Jung Doo Kim, Min Choon Park, Jung Bum Kim
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Patent number: 9461275Abstract: The present application relates to a substrate for an organic electronic device, an organic electronic device, a method of preparing the substrate or the device, and a lighting apparatus. The substrate for an organic electronic device of the present application may, for example, be used to fabricate an organic electronic device, to which foreign substances such as moisture and oxygen are not permeated, and which has enhanced durability and superior light extraction efficiency. If the organic electronic device includes an encapsulation structure, the substrate may be stably attached to the encapsulation structure, and a surface hardness of outside connector part of the organic electronic device may be maintained to an appropriate level.Type: GrantFiled: April 17, 2014Date of Patent: October 4, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Yeon Keun Lee, Yong Sik Ahn, Jung Doo Kim, Min Choon Park, Ji Hee Kim
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Patent number: 9450155Abstract: Disclosed is a light emitting device having a wavelength converting layer. The light emitting device comprises a plurality of semiconductor stacked structures; connectors for electrically connecting the plurality of semiconductor stacked structures to one another; a single wavelength converting layer for covering the plurality of semiconductor stacked structures; an electrode electrically connected to at least one of the semiconductor stacked structures; and at least one additional electrode positioned on the electrode, passing through the wavelength converting layer to be exposed to the outside, and forming a current input terminal to the light emitting device or a current output terminal from the light emitting device. Since the single wavelength converting layer covers the plurality of semiconductor stacked structures, the plurality of semiconductor stacked structures can be integrally mounted on a chip mounting member such as a package or a module.Type: GrantFiled: July 31, 2015Date of Patent: September 20, 2016Assignee: Seoul Semiconductor Co., Ltd.Inventors: Jung Hwa Jung, Jung Doo Kim, Seoung Ho Jung, Min Hye Kim, Yoo Jin Kim
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Patent number: 9391301Abstract: Provided are a substrate for an organic electronic device (OED), an organic electronic system, and a light. The substrate capable of forming an OED ensuring excellent performances and reliability because it may have excellent performances including light extraction efficiency, permeation of moisture or a gas from an external environment may be inhibited, and growth of dark spots may be controlled may be provided.Type: GrantFiled: January 27, 2015Date of Patent: July 12, 2016Assignee: LG Chem, Ltd.Inventors: Min Choon Park, Se Hwan Son, Yeon Keun Lee, Yong Sik Ahn, Jung Doo Kim, Ji Hee Kim, Sang Jun Park, Yong Nam Kim
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Publication number: 20150340581Abstract: A light emitting diode includes: at least one light emitting chip; a substrate including lead frames electrically connected to electrodes of the at least one light emitting chip; a lens disposed on the substrate and enclosing the at least one light emitting chip; and an oil disposed in the lens and the substrate.Type: ApplicationFiled: December 2, 2013Publication date: November 26, 2015Inventors: Yu Dae HAN, Ki Bum NAM, Jung Doo KIM, Sung Soo KIM
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Publication number: 20150340347Abstract: Disclosed is a light emitting device having a wavelength converting layer. The light emitting device comprises a plurality of semiconductor stacked structures; connectors for electrically connecting the plurality of semiconductor stacked structures to one another; a single wavelength converting layer for covering the plurality of semiconductor stacked structures; an electrode electrically connected to at least one of the semiconductor stacked structures; and at least one additional electrode positioned on the electrode, passing through the wavelength converting layer to be exposed to the outside, and forming a current input terminal to the light emitting device or a current output terminal from the light emitting device. Since the single wavelength converting layer covers the plurality of semiconductor stacked structures, the plurality of semiconductor stacked structures can be integrally mounted on a chip mounting member such as a package or a module.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Inventors: Jung Hwa JUNG, Jung Doo Kim, Seoung Ho Jung, Min Hye Kim, Yoo Jin Kim