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).
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Patent number: 11942338Abstract: 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: GrantFiled: June 15, 2021Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Jang Park, Seok Soon Back, Sung Hune Yoo
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Publication number: 20210407828Abstract: 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: ApplicationFiled: June 15, 2021Publication date: December 30, 2021Inventors: Jong Jang PARK, Seok Soon BACK, Sung Hune YOO
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Patent number: 9519228Abstract: 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: GrantFiled: August 1, 2013Date of Patent: December 13, 2016Assignee: Samsung Display Co., Ltd.Inventor: Sung Hune Yoo
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Publication number: 20140314953Abstract: 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: ApplicationFiled: November 8, 2013Publication date: October 23, 2014Inventor: Sung Hune YOO
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Publication number: 20140293257Abstract: 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: ApplicationFiled: August 1, 2013Publication date: October 2, 2014Inventor: Sung Hune Yoo
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Patent number: 8222815Abstract: 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: GrantFiled: August 25, 2009Date of Patent: July 17, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Joung Kweon, Sung-Hune Yoo
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Patent number: 8125150Abstract: 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: GrantFiled: October 19, 2009Date of Patent: February 28, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Joung Kweon, Sung-Hune Yoo
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Patent number: 7986097Abstract: 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: GrantFiled: October 23, 2009Date of Patent: July 26, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Joung Kweon, Sung-Hune Yoo
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Publication number: 20100109527Abstract: 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: ApplicationFiled: October 23, 2009Publication date: May 6, 2010Inventors: Tae-Joung Kweon, Sung-Hune Yoo
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Publication number: 20100109982Abstract: 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: ApplicationFiled: August 25, 2009Publication date: May 6, 2010Inventors: Tae-Joung Kweon, Sung-Hune Yoo
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Publication number: 20100096973Abstract: 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: ApplicationFiled: October 19, 2009Publication date: April 22, 2010Inventors: Tae-Joung Kweon, Sung-Hune Yoo
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Publication number: 20090184641Abstract: 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: ApplicationFiled: January 21, 2009Publication date: July 23, 2009Inventor: Sung-Hune Yoo
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Publication number: 20090184642Abstract: 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: ApplicationFiled: January 22, 2009Publication date: July 23, 2009Inventor: Sung-Hune Yoo
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Publication number: 20090115333Abstract: 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: ApplicationFiled: October 30, 2008Publication date: May 7, 2009Inventor: Sung-Hune Yoo
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Patent number: 7432655Abstract: 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: GrantFiled: March 28, 2006Date of Patent: October 7, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Sung-Hune Yoo, Tae-Joung Kweon
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Patent number: 7385352Abstract: 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: GrantFiled: September 20, 2004Date of Patent: June 10, 2008Assignee: Samsung SDI Co., Ltd.Inventor: Sung-Hune Yoo
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Patent number: 7365492Abstract: 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: GrantFiled: December 27, 2006Date of Patent: April 29, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Gun-Young Hong, Sung-Hune Yoo
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Publication number: 20080042575Abstract: 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: ApplicationFiled: August 30, 2007Publication date: February 21, 2008Inventor: Sung-Hune Yoo
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Publication number: 20070152583Abstract: 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: ApplicationFiled: December 27, 2006Publication date: July 5, 2007Inventors: Gun-Young Hong, Sung-Hune Yoo
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Patent number: 7235927Abstract: 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: GrantFiled: June 1, 2004Date of Patent: June 26, 2007Assignee: Samsung SDI Co., Ltd.Inventor: Sung-Hune Yoo