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).

  • Patent number: 12230746
    Abstract: 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: Grant
    Filed: May 10, 2023
    Date of Patent: February 18, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyukjun Jang, Sungyeol Kim, Jaewoo Kim, Taeyeon Kim, Junsung Choi
  • Patent number: 12225645
    Abstract: 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: Grant
    Filed: March 24, 2023
    Date of Patent: February 11, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyungsuk Kim, Sungyeol Kim, Taeyeon Kim, Kyehoon Lee, Hyukjun Jang
  • Patent number: 12204204
    Abstract: 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: Grant
    Filed: May 16, 2024
    Date of Patent: January 21, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyukjun Jang, Kyehoon Lee, Youngmin Lee, Yonghun Kwon, Sunyoung Kim, Hyungsuk Kim, Seungyong Shin
  • Patent number: 9884461
    Abstract: 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: Grant
    Filed: June 5, 2014
    Date of Patent: February 6, 2018
    Assignee: Berndorf Band GmbH
    Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
  • Patent number: 9428624
    Abstract: 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: Grant
    Filed: September 7, 2012
    Date of Patent: August 30, 2016
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
  • Publication number: 20140295017
    Abstract: 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: Application
    Filed: June 5, 2014
    Publication date: October 2, 2014
    Inventors: Hyukjun KIM, Kwangjin CHUNG, Cholho LEE, Yooseock HWANG, Juntae CHOI, Kinam CHUNG
  • Patent number: 8784725
    Abstract: 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: Grant
    Filed: June 4, 2009
    Date of Patent: July 22, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
  • Patent number: 8570472
    Abstract: 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: Grant
    Filed: February 25, 2010
    Date of Patent: October 29, 2013
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yonggyun Cho, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Hyukjun Kim, Kiyup Kim, Sungho Son, Kibeom Kim
  • Publication number: 20130189508
    Abstract: 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: Application
    Filed: September 7, 2012
    Publication date: July 25, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Hyukjun KIM, Kwangjin CHUNG, Cholho LEE, Yooseock HWANG, Juntae CHOI, Kinam CHUNG
  • Publication number: 20120128944
    Abstract: 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: Application
    Filed: June 4, 2009
    Publication date: May 24, 2012
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Hyukjun Kim, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Juntae Choi, Kinam Chung
  • Publication number: 20110317101
    Abstract: 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: Application
    Filed: February 25, 2010
    Publication date: December 29, 2011
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Yonggyun Cho, Kwangjin Chung, Cholho Lee, Yooseock Hwang, Hyukjun Kim, Kiyup Kim, Sungho Son, Kibeom Kim
  • Publication number: 20110114901
    Abstract: Provided is a cellulose acetate film for optical compensation, which has a low retardation value Rth in the film thickness direction.
    Type: Application
    Filed: July 8, 2009
    Publication date: May 19, 2011
    Applicant: SK ENERGY CO., LTD.
    Inventors: Kinam Chung, Myounglae Kim, Jeeyoung Ahn, Hyukjun Kim, Wonseok Jang
  • Publication number: 20110108780
    Abstract: Provided is a cellulose acetate film for optical compensation, which has a low retardation value Rth in the film thickness direction.
    Type: Application
    Filed: July 8, 2009
    Publication date: May 12, 2011
    Applicant: SK ENERGY CO., LTD.
    Inventors: Kinam Chung, Myounglae Kim, Jeeyoung Ahn, Hyukjun Kim, Wonseok Jang