Patents by Inventor Hyukjun Kim
Hyukjun 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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Patent number: 12230746Abstract: Disclosed herein is a display apparatus. The display apparatus includes: a liquid crystal panel; and a backlight unit configured to emit light to the liquid crystal panel. The backlight unit includes: a substrate extending along a first direction; a light emitting diode provided on the substrate; a refractive cover provided on the light emitting diode to refract light emitted from the light emitting diode; and a lens provided on the substrate and the refractive cover, the lens comprising a bottom surface having a first length in the first direction that is less than a second length in a second direction perpendicular to the first direction.Type: GrantFiled: May 10, 2023Date of Patent: February 18, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyukjun Jang, Sungyeol Kim, Jaewoo Kim, Taeyeon Kim, Junsung Choi
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Patent number: 12225645Abstract: A display apparatus is provided. The display apparatus includes: a backlight unit including a substrate and light sources configured to emit light to a liquid crystal panel; and a processor configured to: identify a plurality of dimming blocks, each of which includes at least one light source among the plurality of light sources; predict a temperature for each of the plurality of dimming blocks based on a dimming signal corresponding to an input image and current-specific temperature profile information corresponding to the plurality of dimming blocks; update the dimming signal based on the temperature predicted for each of the plurality of dimming blocks; and control a supply current for each of the plurality of dimming blocks based on the dimming signal.Type: GrantFiled: March 24, 2023Date of Patent: February 11, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyungsuk Kim, Sungyeol Kim, Taeyeon Kim, Kyehoon Lee, Hyukjun Jang
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Patent number: 12204204Abstract: A display device includes: a display panel; a light source module on a rear side of the display panel and configured to generate light supplied to the display panel, the light source module including a plurality of light sources configured to emit light and a printed circuit board (PCB) on which the plurality of light sources are provided; and a bottom chassis on a rear side of the light source module and on which the light source module is provided, wherein the PCB includes: an insulating layer, a first conductive layer on a lower surface of the insulating layer, and a second conductive layer on an upper surface of the insulating layer, and an area of the second conductive layer is smaller than an area of the first conductive layer, and the PCB is convexly bent in a direction toward the display panel.Type: GrantFiled: May 16, 2024Date of Patent: January 21, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyukjun Jang, Kyehoon Lee, Youngmin Lee, Yonghun Kwon, Sunyoung Kim, Hyungsuk Kim, Seungyong Shin
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Patent number: 9884461Abstract: Disclosed is a wide casting belt, and more particularly, a wide casting belt used for manufacturing a film in a gel state by casting dope used during the manufacture of a polarizing plate for a liquid crystal display, and an optical compensation film, etc. A method for manufacturing a wide film using the wide casting belt, and a wide film manufactured with the wide casting belt are disclosed.Type: GrantFiled: June 5, 2014Date of Patent: February 6, 2018Assignee: Berndorf Band GmbHInventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
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Patent number: 9428624Abstract: A method for manufacturing a wide film comprises a casting operation, a stretching operation, and a trimming operation. The casting operation is a process of casting a film using a wide casting belt including a central belt, a left belt having a right end formed integrally with a left end of the central belt through a left joint in a length direction of the central belt, and a right belt having a left end formed integrally with a right end of the central belt through a right joint in the length direction of the central belt. The stretching operation is a process of stretching a film stripped off from the wide casting belt using a tenter. The trimming operation is a process of trimming predetermined parts of left and right sides of the stretched film. In the trimming operation, mark parts by the left and right joints are also trimmed.Type: GrantFiled: September 7, 2012Date of Patent: August 30, 2016Assignee: SK INNOVATION CO., LTD.Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
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Publication number: 20140295017Abstract: Disclosed is a wide casting belt, and more particularly, a wide casting belt used for manufacturing a film in a gel state by casting dope used during the manufacture of a polarizing plate for a liquid crystal display, and an optical compensation film, etc. A method for manufacturing a wide film using the wide casting belt, and a wide film manufactured with the wide casting belt are disclosed.Type: ApplicationFiled: June 5, 2014Publication date: October 2, 2014Inventors: Hyukjun KIM, Kwangjin CHUNG, Cholho LEE, Yooseock HWANG, Juntae CHOI, Kinam CHUNG
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Patent number: 8784725Abstract: The present invention relates to a wide casting belt, and more particularly, to a wide casting belt used for manufacturing a film in a gel state by casting dope used during the manufacture of a polarizing plate for a liquid crystal display, and an optical compensation film, etc. The present invention also relates to a method for manufacturing a wide film using the wide casting belt, and to a wide film manufactured with said wide casting belt.Type: GrantFiled: June 4, 2009Date of Patent: July 22, 2014Assignee: SK Innovation Co., Ltd.Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
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Patent number: 8570472Abstract: Provided are an optical compensation film and a method for producing the same. The optical compensation film includes a nematic liquid crystal compound including a compound having at least two mesogens linked to each other with a constant angle, and has hybrid alignment in which the alignment of the liquid crystal compound varies gradually along the thickness direction.Type: GrantFiled: February 25, 2010Date of Patent: October 29, 2013Assignee: SK Innovation Co., Ltd.Inventors: Yonggyun Cho, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Hyukjun Kim, Kiyup Kim, Sungho Son, Kibeom Kim
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Publication number: 20130189508Abstract: A method for manufacturing a wide film comprises a casting operation, a stretching operation, and a trimming operation. The casting operation is a process of casting a film using a wide casting belt including a central belt, a left belt having a right end formed integrally with a left end of the central belt through a left joint in a length direction of the central belt, and a right belt having a left end formed integrally with a right end of the central belt through a right joint in the length direction of the central belt. The stretching operation is a process of stretching a film stripped off from the wide casting belt using a tenter. The trimming operation is a process of trimming predetermined parts of left and right sides of the stretched film. In the trimming operation, mark parts by the left and right joints are also trimmed.Type: ApplicationFiled: September 7, 2012Publication date: July 25, 2013Applicant: SK INNOVATION CO., LTD.Inventors: Hyukjun KIM, Kwangjin CHUNG, Cholho LEE, Yooseock HWANG, Juntae CHOI, Kinam CHUNG
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Publication number: 20120128944Abstract: The present invention relates to a wide casting belt, and more particularly, to a wide casting belt used for manufacturing a film in a gel state by casting dope used during the manufacture of a polarizing plate for a liquid crystal display, and an optical compensation film, etc. The present invention also relates to a method for manufacturing a wide film using the wide casting belt, and to a wide film manufactured with said wide casting belt.Type: ApplicationFiled: June 4, 2009Publication date: May 24, 2012Applicant: SK INNOVATION CO., LTD.Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
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Publication number: 20110317101Abstract: Provided are an optical compensation film and a method for producing the same. The optical compensation film includes a nematic liquid crystal compound including a compound having at least two mesogens linked to each other with a constant angle, and has hybrid alignment in which the alignment of the liquid crystal compound varies gradually along the thickness direction.Type: ApplicationFiled: February 25, 2010Publication date: December 29, 2011Applicant: SK INNOVATION CO., LTD.Inventors: Yonggyun Cho, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Hyukjun Kim, Kiyup Kim, Sungho Son, Kibeom Kim
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Publication number: 20110114901Abstract: Provided is a cellulose acetate film for optical compensation, which has a low retardation value Rth in the film thickness direction.Type: ApplicationFiled: July 8, 2009Publication date: May 19, 2011Applicant: SK ENERGY CO., LTD.Inventors: Kinam Chung, Myounglae Kim, Jeeyoung Ahn, Hyukjun Kim, Wonseok Jang
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Publication number: 20110108780Abstract: Provided is a cellulose acetate film for optical compensation, which has a low retardation value Rth in the film thickness direction.Type: ApplicationFiled: July 8, 2009Publication date: May 12, 2011Applicant: SK ENERGY CO., LTD.Inventors: Kinam Chung, Myounglae Kim, Jeeyoung Ahn, Hyukjun Kim, Wonseok Jang