Patents by Inventor Seong-jin Hwang

Seong-jin Hwang 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).

  • Publication number: 20180151829
    Abstract: A window substrate includes a glass substrate, and a shock wave transmission layer on a first surface of the glass substrate, wherein a density and elastic modulus of the shock wave transmission layer are respectively less than those of the glass substrate.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Inventors: Dae Ho Yoon, Myung Hwan Kim, Ji Yeon Kim, Ik Hyung Park, Seong Jin Hwang
  • Publication number: 20180136371
    Abstract: A protective cover includes a cover substrate, an anti-scattering coating layer on the cover substrate, and an adhesive layer on the anti-scattering coating layer, wherein the anti-scattering coating layer has a plurality of protrusions, wherein the cover substrate has a thickness of 10 ?m to 150 ?m, and wherein the cover substrate and the anti-scattering coating layer are configured to be folded with a curvature radius of 10 mm or less.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 17, 2018
    Inventors: Ji Yeon Kim, Seong Jin Hwang, Myung Hwan Kim, Ik Hyung Park, Dae Ho Yoon
  • Publication number: 20180081088
    Abstract: A protecting cover includes a cover substrate, and a coating layer provided on the cover substrate, wherein the coating layer includes a matrix and a filler embedded in the matrix.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 22, 2018
    Inventors: Seong Jin HWANG, Myung Hwan KIM, Ji Yeon KIM, Ik Hyung PARK, Dae Ho YOON
  • Publication number: 20180046220
    Abstract: A window substrate includes a glass substrate including first and second surfaces opposite to each other, the glass substrate having a thickness of about 25 ?m to about 100 ?m, and a coating layer disposed on the first surface. The glass substrate includes SiO2, Al2O3 and Na2O, and the mole ratio of Al2O3/Na2O is equal to or smaller than 1.
    Type: Application
    Filed: June 16, 2017
    Publication date: February 15, 2018
    Inventors: Myung Hwan KIM, Ik Hyung PARK, Seong Jin HWANG, Sung Chul KIM, Jang Doo LEE, Jong Hyuk LEE
  • Publication number: 20180034001
    Abstract: A window for a display device including a glass layer and a functional coating layer disposed on the glass layer. The functional coating layer may have an elastic modulus less than an elastic modulus of the glass layer. A thickness of the functional coating layer may be in a range from about 1 micrometer (um) to about 10 um.
    Type: Application
    Filed: June 21, 2017
    Publication date: February 1, 2018
    Inventors: SEONG-JIN HWANG, Jong-Hwan CHO, Myung-Hwan KIM, Ji-Yeon KIM, lk-Hyung PARK
  • Patent number: 9655235
    Abstract: A foldable display device having an excellent folding characteristic without image quality deterioration on a folding portion is provided. The foldable display device includes a flexible display panel and a cover window positioned outside the flexible display panel and protecting the flexible display panel from an external impact, wherein the cover window includes a folding region where concave grooves are formed.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Jin Hwang, Kwan-Young Han, Sang-Gu Kim
  • Patent number: 9615449
    Abstract: A foldable display device having an excellent folding characteristic without image quality deterioration on a folding portion is provided. The foldable display device includes a flexible display panel and a cover window positioned outside the flexible display panel and protecting the flexible display panel from an external impact, wherein the cover window includes a folding region where concave grooves are formed.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Jin Hwang, Kwan-Young Han, Sang-Gu Kim
  • Patent number: 9486950
    Abstract: A display device includes preparing a high hardness film. In the high hardness film, a first supporting member, a silsesquioxane film, and a second supporting member are deposited. The high hardness film is pre-treated, forming a pre-window. A transparent member is formed on a surface of the pre-window through an injection process. The transparent member is formed of polycarbonate. The first supporting member and the second supporting member are formed of polyethylene terephthalate or polyethylene naphthalate.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: November 8, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Jin Hwang, Kwan-Young Han, Hyoung-Suk Roh, Mikiya Itakura, Yuki Hongo, Hun-Kyo Kim
  • Patent number: 9221706
    Abstract: An apparatus for forming a glass, the apparatus including a lower mold and an upper mold is disclosed. The lower mold may be configured to support a central portion of a lower surface of the glass. The upper mold may be configured to make point contact with an edge portion of an upper surface of the glass. The upper mold may press the edge portion of the upper surface of the glass to form a rounded portion of the edge portion of the glass. An apparatus for forming a glass, the apparatus including: a lower mold configured to make point contact with an edge portion of a lower surface of the glass; and an upper mold configured to press an interior portion of the upper surface of the glass to form a rounded portion at the edge portion of the glass, is also disclosed.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: December 29, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Seok Jang, Jong-Hwan Kim, Kwan-Young Han, Seong-Jin Hwang, Jae-Seung Jeon, Dae-Sik Hong
  • Patent number: 8951334
    Abstract: Disclosed are an electric dust collector apparatus in an electrostatic precipitator system and a method for electrostatic precipitation thereby. The electric dust collector apparatus includes a flow liquid dust collector part collecting charged dust in a liquid flowing to its one side surface, and a counter unit located opposite to the flow liquid dust collector part and including a metal plate charged with the same polarity with the charged dust to guide the induced charged dust to flow toward the flow liquid dust collector part, wherein the counter unit further includes a coating including an insulating material coating the metal plate.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 10, 2015
    Assignee: Zihom Co., Ltd.
    Inventors: Dong Jin Oh, Kun Hee Kim, Seong Jin Hwang
  • Publication number: 20150000339
    Abstract: An apparatus for forming a glass, the apparatus including a lower mold and an upper mold is disclosed. The lower mold may be configured to support a central portion of a lower surface of the glass. The upper mold may be configured to make point contact with an edge portion of an upper surface of the glass. The upper mold may press the edge portion of the upper surface of the glass to form a rounded portion of the edge portion of the glass. An apparatus for forming a glass, the apparatus including: a lower mold configured to make point contact with an edge portion of a lower surface of the glass; and an upper mold configured to press an interior portion of the upper surface of the glass to form a rounded portion at the edge portion of the glass, is also disclosed.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 1, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jin-Seok Jang, Jong-Hwan Kim, Kwan-Young Han, Seong-Jin Hwang, Jae-Seung Jeon, Dae-Sik Hong
  • Publication number: 20150000340
    Abstract: An apparatus for forming a glass, the apparatus including a lower mold, a fixing mold and an upper mold is disclosed. The lower mold may be configured to support a central portion of a lower surface of the glass. The fixing mold may be configured to support a central portion of an upper surface of the glass. The upper mold may press two edge portions of the upper surface of the glass to form rounded portions at the two edge portions of the glass. An apparatus for forming a glass, the apparatus including: a lower mold configured to press two edge portions of a lower surface of the glass to form rounded portions at the two edge portions of the glass; a fixing mold configured to support a central portion of the lower surface of the glass; and an upper mold configured to support a central portion of an upper surface of the glass is also disclosed.
    Type: Application
    Filed: March 18, 2014
    Publication date: January 1, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Seok Jang, Jong-Hwan Kim, Kwan-Young Han, Seong-Jin Hwang, Jae-Seung Jeon, Dae-Sik Hong
  • Publication number: 20140373573
    Abstract: An apparatus for manufacturing 3D glass, the apparatus including: a molding part for molding a glass substrate; an assembling and disassembling part for carrying-out the molded glass substrate and replacing the molded glass substrate with an other glass substrate; and a loading part for loading the molded glass substrate is disclosed. A method for manufacturing 3D glass including: carrying-in a mold including a glass substrate into a chamber of a molding part; preheating the carried-in mold; molding the glass substrate by pressing the heated mold; cooling the molded glass substrate; and carrying-out the molded glass substrate and carrying-in an other glass substrate into the mold is also disclosed.
    Type: Application
    Filed: October 28, 2013
    Publication date: December 25, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seong Jin Hwang, Jong Hwan Kim, Jin Seok Jang, Kwan Young Han, Hyoung Suk Roh, Jae Seung Jeon
  • Publication number: 20140376237
    Abstract: A display device includes preparing a high hardness film. In the high hardness film, a first supporting member, a silsesquioxane film, and a second supporting member are deposited. The high hardness film is pre-treated, forming a pre-window. A transparent member is formed on a surface of the pre-window through an injection process. The transparent member is formed of polycarbonate. The first supporting member and the second supporting member are formed of polyethylene terephthalate or polyethylene naphthalate.
    Type: Application
    Filed: December 17, 2013
    Publication date: December 25, 2014
    Inventors: SEONG-JIN HWANG, Kwan-Young Han, Hyoung-Suk Roh, Mikiya Itakura, Yuki Hongo, Hun-Kyo Kim
  • Publication number: 20140356572
    Abstract: The present disclosure relates to a display device including a window structure having improved durability and reliability, and a method of manufacturing the display device. The window structure includes a first transparent film layer, a second transparent film layer disposed on the first transparent film layer, a third transparent film layer disposed on the second transparent film layer, and a coating layer disposed on an upper surface of the window structure.
    Type: Application
    Filed: October 18, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Hun-Kyo KIM, Ju-Suk OH, Seong-Jin HWANG
  • Publication number: 20140260972
    Abstract: Disclosed are an electric dust collector apparatus in an electrostatic precipitator system and a method for electrostatic precipitation thereby. The electric dust collector apparatus includes a flow liquid dust collector part collecting charged dust in a liquid flowing to its one side surface, and a counter unit located opposite to the flow liquid dust collector part and including a metal plate charged with the same polarity with the charged dust to guide the induced charged dust to flow toward the flow liquid dust collector part, wherein the counter unit further includes a coating including an insulating material coating the metal plate.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: Zihom Co., Ltd.
    Inventors: Dong Jin Oh, Kun Hee Kim, Seong Jin Hwang
  • Publication number: 20140029212
    Abstract: A foldable display device having an excellent folding characteristic without image quality deterioration on a folding portion is provided. The foldable display device includes a flexible display panel and a cover window positioned outside the flexible display panel and protecting the flexible display panel from an external impact, wherein the cover window includes a folding region where concave grooves are formed.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 30, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Jin HWANG, Kwan-Young HAN, Sang-Gu KIM
  • Publication number: 20140013803
    Abstract: A device for making a window includes a main body defining a first space and a second space, a first shaft provided in the first space and connected to the main body, a first die provided in the first space and connected to the first shaft, a second shaft connected to the main body, movable relative to the first shaft and extending to the first space from the second space, and a second die provided in the first space and connected to the second shaft.. The device further includes an air-tight chamber surrounding the first and second dies, a gas supply conduit and a gas discharge conduit connected to the chamber, and an actuator connected to the second shaft and configured to move the second shaft relative to the first shaft. At least one of the first and second dies has a flat area and a curved area.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Jin Hwang, Kwan-Young Han, Dong-Ho Lee, Hyoung-Suk Roh, Mikiya Itakura
  • Patent number: 8094250
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first field generating electrode with a plurality of cutouts. A thin film transistor is connected to the first field generating electrode. An auxiliary electrode is overlapped with one or more of the plurality of cutouts of the first field generating electrode, and is floated during the period of image display. A second field generating electrode faces the first field generating electrode and a liquid crystal layer is interposed between the first and second field generating electrodes. The liquid crystal layer includes a plurality of liquid crystal molecules and photo-polymers.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: January 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hee Lee, Seong-Jin Hwang, Jong-Ho Son
  • Patent number: 8081282
    Abstract: A liquid crystal display device includes a first substrate having a gate line and two data lines crossing with the gate line to define a pixel, a first pixel electrode connected to the gate line and the first data line, and a second pixel electrode connected to the gate line and the second data line. A second substrate opposes the first substrate and includes a common electrode having a common electrode cutting pattern. The pixel electrode includes a pixel electrode cutting pattern to form domains and sub domains in the pixel with the common electrode cutting pattern. A liquid crystal layer is arranged between the first and second substrates. The pixel electrodes include bent portions. The pixel electrode and the common electrode include sub cutting patterns extending towards the sub domains at the bent portions.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: December 20, 2011
    Assignees: Samsung Electronics Co., Ltd., Industrial Cooperation Foundation of Chonbuk National University
    Inventors: Seung-hee Lee, Ji-won Sohn, Yeon-mun Jeon, Seong-jin Hwang, Jae-jin Lyu