Patents by Inventor Sung-Hune Yoo

Sung-Hune Yoo 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: 11942338
    Abstract: An apparatus for manufacturing a display device includes a chamber, a heating member disposed inside the chamber to provide a thermal atmosphere inside the chamber, where the heating member includes a first heater and a second heater facing each other, a height adjustment member including an end disposed between the first heater and the second heater, and a driving unit which drives the end of the height adjustment member to move up or down such that the end of the height adjustment member is located at one of a first height and a second height which are different heights between the first heater and the second heater. Each of the first height and the second height is different from a height of a top surface of the first heater, and different from a height of a bottom surface of the second heater facing the top surface of the first heater.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Jang Park, Seok Soon Back, Sung Hune Yoo
  • Publication number: 20210407828
    Abstract: An apparatus for manufacturing a display device includes a chamber, a heating member disposed inside the chamber to provide a thermal atmosphere inside the chamber, where the heating member includes a first heater and a second heater facing each other, a height adjustment member including an end disposed between the first heater and the second heater, and a driving unit which drives the end of the height adjustment member to move up or down such that the end of the height adjustment member is located at one of a first height and a second height which are different heights between the first heater and the second heater. Each of the first height and the second height is different from a height of a top surface of the first heater, and different from a height of a bottom surface of the second heater facing the top surface of the first heater.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 30, 2021
    Inventors: Jong Jang PARK, Seok Soon BACK, Sung Hune YOO
  • Patent number: 9519228
    Abstract: Provided are a substrate holding apparatus and a method of using the substrate holding apparatus. According to an aspect of the present invention, there is provided a substrate holding apparatus comprising a stage on which a substrate is placed, and at least one lift bar which separates the substrate from the stage by raising the substrate or placing the substrate on the stage by lowering the substrate. The lift bar comprises a body and a head. The head is connected to an end of the body, contacts the substrate, and is formed of a porous material.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: December 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sung Hune Yoo
  • Publication number: 20140314953
    Abstract: A coating method includes arranging a nozzle portion with a plurality of nozzles above a substrate with a plurality of coating areas, moving the substrate or the nozzle portion in a first direction, and applying a coating liquid to respective coating areas through corresponding nozzles.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 23, 2014
    Inventor: Sung Hune YOO
  • Publication number: 20140293257
    Abstract: Provided are a substrate holding apparatus and a method of using the substrate holding apparatus. According to an aspect of the present invention, there is provided a substrate holding apparatus comprising a stage on which a substrate is placed, and at least one lift bar which separates the substrate from the stage by raising the substrate or placing the substrate on the stage by lowering the substrate. The lift bar comprises a body and a head. The head is connected to an end of the body, contacts the substrate, and is formed of a porous material.
    Type: Application
    Filed: August 1, 2013
    Publication date: October 2, 2014
    Inventor: Sung Hune Yoo
  • Patent number: 8222815
    Abstract: A PDP includes a first substrate and a second substrate facing each other, a plurality of first discharge electrodes on the first substrate, a first dielectric layer covering the plurality of first discharge electrodes, and a plurality of second discharge electrodes on the second substrate to cross the plurality of first discharge electrodes, wherein a difference between thermal expansion coefficients of the first substrate and the first dielectric layer is greater than or equal to about 2×10?7/° C. and less than or equal to about 17×10?7/° C.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: July 17, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Patent number: 8125150
    Abstract: A plasma display panel (PDP) including first and second substrates arranged opposite to each other, a plurality of first electrodes between the first and second substrates, a dielectric layer disposed on the first substrate, a plurality of second electrodes disposed in a direction crossing the first electrodes, and red, green, and blue phosphor layers disposed between the first and second substrates, wherein the dielectric layer includes a lead-free glass and at least one of CoO, CuO, MnO2, Cr2O3, or Fe2O3 as a metal oxide additive.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: February 28, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Patent number: 7986097
    Abstract: A PDP includes a first substrate and a second substrate facing each other, a plurality of first discharge electrodes on the first substrate, a first dielectric layer covering the first discharge electrodes, a plurality of second discharge electrodes on the second substrate and intersecting the first discharge electrodes, a second dielectric layer covering the second discharge electrodes, and a sealing material between the first substrate and the second substrate, wherein an absolute value of thermal expansion coefficient difference between the second dielectric layer and the sealing material is less than or equal to 13×10?7/° C.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: July 26, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Publication number: 20100109527
    Abstract: A PDP includes a first substrate and a second substrate facing each other, a plurality of first discharge electrodes on the first substrate, a first dielectric layer covering the first discharge electrodes, a plurality of second discharge electrodes on the second substrate and intersecting the first discharge electrodes, a second dielectric layer covering the second discharge electrodes, and a sealing material between the first substrate and the second substrate, wherein an absolute value of thermal expansion coefficient difference between the second dielectric layer and the sealing material is less than or equal to 13×10?7/° C.
    Type: Application
    Filed: October 23, 2009
    Publication date: May 6, 2010
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Publication number: 20100109982
    Abstract: A PDP includes a first substrate and a second substrate facing each other, a plurality of first discharge electrodes on the first substrate, a first dielectric layer covering the plurality of first discharge electrodes, and a plurality of second discharge electrodes on the second substrate to cross the plurality of first discharge electrodes, wherein a difference between thermal expansion coefficients of the first substrate and the first dielectric layer is greater than or equal to about 2×10?7/° C. and less than or equal to about 17×10?7/° C.
    Type: Application
    Filed: August 25, 2009
    Publication date: May 6, 2010
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Publication number: 20100096973
    Abstract: A plasma display panel (PDP) including first and second substrates arranged opposite to each other, a plurality of first electrodes between the first and second substrates, a dielectric layer disposed on the first substrate, a plurality of second electrodes disposed in a direction crossing the first electrodes, and red, green, and blue phosphor layers disposed between the first and second substrates, wherein the dielectric layer includes a lead-free glass and at least one of CoO, CuO, MnO2, Cr2O3, or Fe2O3 as a metal oxide additive.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 22, 2010
    Inventors: Tae-Joung Kweon, Sung-Hune Yoo
  • Publication number: 20090184641
    Abstract: A plasma display panel (PDP) having improved impact resistance, the PDP including: a front substrate on which sustain electrodes are disposed at predetermined intervals; a front dielectric layer covering the sustain electrodes; a rear substrate that is disposed to face the front substrate, and on which address electrodes are disposed to cross the sustain electrodes; a rear dielectric layer covering the address electrodes; barrier ribs formed between the front substrate and the rear substrate, the barrier ribs defining discharge spaces; and phosphor layers formed in the discharge spaces, wherein the front dielectric layer has a Vickers hardness of 350 to 500 Hv.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Inventor: Sung-Hune Yoo
  • Publication number: 20090184642
    Abstract: A front dielectric layer and a PDP including the front dielectric layer are taught, and the PDP has a high degree of clarity and color purity obtained by preventing color temperature variance at various viewing angles. The front dielectric layer covers sustain electrodes arranged at predetermined intervals on a front substrate, wherein [(n450/n?450)?(n550/n?550)] is 0.01 or less, [(n550/n?550)?(n630/n?630)] is 0.01 or less, and [(n450/n?450)?(n630/n?630)] is 0.01 or less where n450 is the refractive index of the front dielectric layer at a wavelength of 450 nm, n?450 is the refractive index of the front substrate at a wavelength of 450 nm, n550 is the refractive index of the front dielectric layer at a wavelength of 550 nm, n?550 is the refractive index of the front substrate at a wavelength of 550 nm, n630 is the refractive index of the front dielectric layer at a wavelength of 630 nm, and n?630 is the refractive index of the front substrate at a wavelength of 630 nm.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 23, 2009
    Inventor: Sung-Hune Yoo
  • Publication number: 20090115333
    Abstract: A dielectric material for a plasma display panel (PDP) device, a PDP device including the same, and a method of manufacturing the PDP device are taught. The dielectric material includes at least three materials selected from the group consisting of Bi2O3, BaO, SiO2, B2O3, ZnO, and Al2O3, and a coloring agent Mn2O3. The dielectric material for a PDP device is environmental-friendly due to PbO-free, is easily sintered at a relatively low temperature, may be prevented from yellowing by prohibiting the reduction of Ag ions, and may have enhanced light room contrast by effectively reducing external light reflection luminance and thus minimizing luminance reduction.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 7, 2009
    Inventor: Sung-Hune Yoo
  • Patent number: 7432655
    Abstract: A plasma display panel is provided. The plasma display panel includes a front substrate; a rear substrate arranged to face the front substrate, a dielectric layer arranged between the front and the rear substrates and at least a portion of the dielectric layer having a first color, plurality of barrier ribs arranged between the front and the rear substrates and at least a portion of the plurality of barrier ribs having a second color, plurality of light absorbing layers arranged between the front substrate and the plurality of barrier ribs, wherein the first and the second colors are subtractive-mixed with each other. The dielectric layer and the plurality of barrier ribs are colored with two complementary colors that essentially filter out nearly all light. Accordingly, it is possible to reduce outdoor daylight reflection and improve image contrast.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: October 7, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung-Hune Yoo, Tae-Joung Kweon
  • Patent number: 7385352
    Abstract: A Plasma Display Panel (PDP) includes: a rear substrate; address electrodes arranged in predetermined intervals over the rear substrate; a rear dielectric layer arranged to cover the address electrodes; barrier ribs arranged to partition discharge spaces on the rear dielectric layer; phosphor layers arranged in the discharge spaces; a front substrate arranged over and facing the rear substrate; and sustain electrodes arranged orthogonal to the address electrodes under the front substrate.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: June 10, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sung-Hune Yoo
  • Patent number: 7365492
    Abstract: Plasma display panels (PDPs) that can be readily manufactured and that have increased bright room contrast ratios are provided. One PDP includes a front substrate adapted to allow visible light to pass, a rear substrate facing the front substrate, and a plurality of barrier ribs disposed between the front substrate and the rear substrate defining a plurality of discharge cells. At least a portion of the barrier ribs is colored with a first color. The PDP further comprises a plurality of sustain electrodes disposed on the front substrate facing the rear substrate, each of which has a plurality of electrode parts. The PDP also includes a front dielectric layer disposed on the front substrate covering the sustain electrodes. The front dielectric layer is colored with a second color. Brightness and chroma of both of the first and second colors are reduced when the first and second colors are subtractively mixed.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: April 29, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Gun-Young Hong, Sung-Hune Yoo
  • Publication number: 20080042575
    Abstract: A dielectric layer increases color temperature and contrast ratio, and prevents brightness reduction. A plasma display panel includes the dielectric layer. The dielectric layer includes a base glass and a transition metal compound. In the dielectric layer, the transmittance of visible light having a wavelength of 430 to 480 nm is greater than the transmittance of visible light having a wavelength of 530 to 560 nm or 580 to 660 nm.
    Type: Application
    Filed: August 30, 2007
    Publication date: February 21, 2008
    Inventor: Sung-Hune Yoo
  • Publication number: 20070152583
    Abstract: Plasma display panels (PDPs) that can be readily manufactured and that have increased bright room contrast ratios are provided. One PDP includes a front substrate adapted to allow visible light to pass, a rear substrate facing the front substrate, and a plurality of barrier ribs disposed between the front substrate and the rear substrate defining a plurality of discharge cells. At least a portion of the barrier ribs is colored with a first color. The PDP further comprises a plurality of sustain electrodes disposed on the front substrate facing the rear substrate, each of which has a plurality of electrode parts. The PDP also includes a front dielectric layer disposed on the front substrate covering the sustain electrodes. The front dielectric layer is colored with a second color. Brightness and chroma of both of the first and second colors are reduced when the first and second colors are subtractively mixed.
    Type: Application
    Filed: December 27, 2006
    Publication date: July 5, 2007
    Inventors: Gun-Young Hong, Sung-Hune Yoo
  • Patent number: 7235927
    Abstract: A plasma display panel having improved contrast without needing an additional manufacturing process includes: a transparent front substrate, a rear substrate arranged on a lower portion of the front substrate; sustain electrode pairs arranged parallel to each other and located between the front substrate and the rear substrate; a transparent first dielectric layer covering the sustain electrode pairs; address electrodes crossing the sustain electrode pairs and arranged between the sustain electrode pairs and the rear substrate; a second dielectric layer of a light absorbing color covering the address electrodes; transparent partition walls arranged on the second dielectric layer and defining light emitting cells; phosphor layers arranged in the light emitting cells; and a discharge gas filling the light emitting cells.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: June 26, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sung-Hune Yoo