Patents by Inventor Yoon-Hyeung Cho

Yoon-Hyeung Cho 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: 20150042346
    Abstract: A display apparatus is provided. The display apparatus includes a substrate, a display panel on the substrate, and an encapsulation film sealing the display panel. The encapsulation film includes at least one organic layer and/or at least one inorganic layer and at least one pair of conductive layers.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 12, 2015
    Applicants: Seoul National University R&DB Foundation, Samsung Display Co., Ltd.
    Inventors: Min-Ho OH, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon, Hyeong-Joon Kim, Sang-Hyun Park, Hyuk-Jin Kim, Seung-Ha Oh
  • Publication number: 20140367652
    Abstract: An organic light emitting diode (OLED) display includes: a substrate including a plurality of pixels, a thin film transistor disposed in the pixels; an organic light emitting element connected to the thin film transistor and disposed in the pixels, an encapsulation member located on the organic light emitting element, and an external light blocking member disposed above or under the encapsulation member and including a first portion and a second portion. The first portion has a thickness that is thinner than a thickness of the second portion, and the first portion is disposed in the pixels.
    Type: Application
    Filed: December 9, 2013
    Publication date: December 18, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: SANG-HWAN CHO, Soo-Youn Kim, Sang-Hyun Park, Yoon-Hyeung Cho, Seung-Yong Song
  • Publication number: 20140367648
    Abstract: An organic light emitting diode (“OLED”) display includes a display panel; and a window on the display panel. The OLED display further includes an optical unit on the display panel, and including a metal material film and a dielectric material film.
    Type: Application
    Filed: October 22, 2013
    Publication date: December 18, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sang-Hwan CHO, Soo-Youn KIM, Sang-Hyun PARK, Yoon-Hyeung CHO, Seung-Yong SONG
  • Publication number: 20140361682
    Abstract: In an aspect, a light-emitting display device and a method of fabricating the same is provided. The light-emitting display device includes a display substrate which comprises a pixel region and a non-pixel region; an encapsulation member which is disposed above the display substrate; and a destructive interference unit.
    Type: Application
    Filed: October 23, 2013
    Publication date: December 11, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Cho, Soo Youn Kim, Sang Hyun Park, Yoon Hyeung Cho, Seung Yong Song
  • Patent number: 8878201
    Abstract: An organic light-emitting display apparatus is disclosed. In one embodiment, the display apparatus includes i) a substrate and ii) an organic light-emitting device formed on the substrate, the organic light-emitting device including a stack structure including a first electrode, an organic light-emitting layer, and a second electrode. The apparatus may further include a sealing layer formed on the substrate so as to cover the organic light-emitting device, the sealing layer including an inorganic layer and a porous layer interposed between the sealing layer and the organic light-emitting device. One embodiment can reduce a stress due to a sealing inorganic layer so as to maintain characteristics for a long time in a severe environment and not affect an organic light-emitting device.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Byoung-Duk Lee, Yong-Tak Kim, So-Young Lee, Yun-Ah Chung
  • Publication number: 20140306195
    Abstract: An organic light-emitting display apparatus and a manufacturing method thereof. The organic light-emitting display apparatus includes a substrate, a display unit arranged on the substrate, a dam unit arranged at a periphery of the display unit and on the substrate and an encapsulating layer to encapsulate the display unit, wherein the encapsulating layer includes an organic film covering the display unit, and an inorganic film covering the organic film and the dam unit, and wherein a hardness of the dam unit is lower than that of the inorganic film. According to this, lateral moisture-proof characteristics of the organic light-emitting display apparatus are improved.
    Type: Application
    Filed: September 25, 2013
    Publication date: October 16, 2014
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 8860919
    Abstract: In order to improve durability, a display apparatus includes a substrate; an encapsulation substrate facing the substrate; a display unit disposed between the substrate and the encapsulation substrate; a sealing unit disposed between the substrate and the encapsulation substrate so as to bond the substrate and the encapsulation substrate and spaced from the display unit; and a protective member formed over at least one surface among surfaces of the substrate and the encapsulation substrate, except surfaces facing the display unit. The protective member includes a base, a plurality of capsules comprising monomers, and a catalyst inducing polymerization of the monomers.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Ah Chung, Jong-Hyuk Lee, Seung-Young Song, Yoon-Hyeung Cho, Min-Ho Oh, Byoung-Duk Lee, So-Young Lee, Yong-Tak Kim
  • Publication number: 20140299862
    Abstract: An organic light-emitting display system and a method of manufacturing the same are disclosed. In one aspect, the organic light-emitting display system includes a substrate, a display unit that defines an active area on the substrate and includes a plurality of thin film transistor (TFTs), and an encapsulation layer that seals the display unit and has a stacked structure in which at least a first inorganic film, a first organic film, and a second inorganic film are sequentially stacked. The TFTs includes an active layer, a gate electrode, a source electrode, a drain electrode, and an interlayer insulating film that is disposed between the gate electrode and the source electrode and between the gate electrode and the drain electrode, wherein the second inorganic film directly contacts the interlayer insulating film outside the active area.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 9, 2014
    Inventors: Jeong-Yeol Lee, Yoon-Hyeung Cho, Ouck Han
  • Publication number: 20140225084
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: October 21, 2013
    Publication date: August 14, 2014
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 8784150
    Abstract: The present invention is to provide an organic light emitting display and a method of manufacturing the same, the light emitting display including: a first substrate on which a plurality of light emitting devices are formed; a second substrate disposed to face the first substrate; a dam member disposed between the first substrate and the second substrate to surround the plurality of light emitting devices; an inorganic sealing material disposed between the first substrate and the second substrate on an outward side of the dam member and attaching the first substrate and the second substrate; and a filling material provided between the first substrate and the second substrate on an inward side of the dam member and formed of at least one inert liquid selected from the group consisting of perfluorocarbon and fluorinert.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-ho Oh, Yoon-Hyeung Cho, Byoung-duk Lee, So-young Lee, Sun-young Lee, Won-jong Kim, Yong-tak Kim, Jin-baek Choi, Jong-hyuk Lee, Seung-han Lee
  • Patent number: 8772824
    Abstract: An organic light-emitting display system and a method of manufacturing the same are disclosed. In one aspect, the organic light-emitting display system includes a substrate, a display unit that defines an active area on the substrate and includes a plurality of thin film transistor (TFTs), and an encapsulation layer that seals the display unit and has a stacked structure in which at least a first inorganic film, a first organic film, and a second inorganic film are sequentially stacked. The TFTs includes an active layer, a gate electrode, a source electrode, a drain electrode, and an interlayer insulating film that is disposed between the gate electrode and the source electrode and between the gate electrode and the drain electrode, wherein the second inorganic film directly contacts the interlayer insulating film outside the active area.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Yeol Lee, Yoon-Hyeung Cho, Ouck Han
  • Publication number: 20140138634
    Abstract: An organic light-emitting display system and a method of manufacturing the same are disclosed. In one aspect, the organic light-emitting display system includes a substrate, a display unit that defines an active area on the substrate and includes a plurality of thin film transistor (TFTs), and an encapsulation layer that seals the display unit and has a stacked structure in which at least a first inorganic film, a first organic film, and a second inorganic film are sequentially stacked. The TFTs includes an active layer, a gate electrode, a source electrode, a drain electrode, and an interlayer insulating film that is disposed between the gate electrode and the source electrode and between the gate electrode and the drain electrode, wherein the second inorganic film directly contacts the interlayer insulating film outside the active area.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 22, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jeong-Yeol Lee, Yoon-Hyeung Cho, Ouck Han
  • Patent number: 8729797
    Abstract: A manufacturing method of an OLED display is provided. The method includes: forming an organic emission layer and a thin film encapsulation layer covering the organic emission layer on a substrate including a pixel area and a peripheral area; adhering a laminating film including a plurality of adhesive layers and an upper protective layer that covers an upper adhesive layer from among the adhesive layers on the thin film encapsulation layer, a lower adhesive layer from among the adhesive layers contacting the thin film encapsulation layer; radiating UV light on the laminating film that corresponds to the peripheral area of the substrate to decrease adhesion between the lower adhesive layer and the thin film encapsulation layer corresponding to the peripheral area; and peeling the laminating film corresponding to the peripheral area from the thin film encapsulation layer to maintain the laminating film that corresponds to the pixel area.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: So-Young Lee, Yoon-Hyeung Cho, Min-Ho Oh, Byoung-Duk Lee, Yong-Tak Kim, Sang-Hwan Cho, Yun-Ah Chung, Seung-Yong Song, Jong-Hyuk Lee
  • Patent number: 8721381
    Abstract: The present invention is to provide an organic light emitting display and a method of manufacturing the same. The light emitting display according to the present invention includes: a first substrate on which a plurality of light emitting devices having first electrodes, organic light emitting layers, and second electrodes are disposed; a second substrate disposed to face the first substrate; a dam member disposed between the first substrate and the second substrate to surround the plurality of light emitting devices; an inorganic sealing material disposed between the first substrate and the second substrate in an outer area of the dam member and attaching the first substrate to the second substrate; and a silicon filling material provided between the first substrate and the second substrate inward of the dam member to be in contact with the second electrodes.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: May 13, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-ho Oh, Yoon-Hyeung Cho, Byoung-duk Lee, So-young Lee, Sun-young Lee, Won-jong Kim, Yong-tak Kim, Jin-beak Choi, Jong-hyuk Lee, Seung-han Lee
  • Publication number: 20140117330
    Abstract: A display device and a method of manufacturing the same. The display device includes a substrate, an organic light emitting diode (OLED) arranged on the substrate, a thin film encapsulation layer arranged on the substrate to cover the OLED and including an inorganic material layer and an organic material layer, and an anti-reflection layer arranged on the thin film encapsulation layer and including a dielectric layer and a metal layer.
    Type: Application
    Filed: September 6, 2013
    Publication date: May 1, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hwan CHO, Jin Hwan JEON, Soo Youn KIM, Sang Hyun PARK, Yoon Hyeung CHO, Seung Yong SONG
  • Patent number: 8704214
    Abstract: An organic light emitting diode (OLED) display a includes: a substrate; an organic light emitting element on the substrate and including a first electrode, a light emission layer, and a second electrode; and an encapsulation layer on the substrate while covering the organic light emitting element. The encapsulation layer includes an organic layer and an inorganic layer. A mixed area, where organic materials forming the organic layer and inorganic materials forming the inorganic layer co-exist along a plane direction of the encapsulation layer, is formed at the boundary between the organic layer and the inorganic layer.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: So-Young Lee, Yoon-Hyeung Cho, Min-Ho Oh, Byoung-Duk Lee, Sang-Hwan Cho, Yong-Tak Kim, Yun-Ah Chung, Seung-Yong Song, Jong-Hyuk Lee
  • Publication number: 20140103309
    Abstract: In an embodiment of the present disclosure, a polymer layer is formed on a second electrode of an organic light emitting display device.
    Type: Application
    Filed: August 19, 2013
    Publication date: April 17, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyeung Cho, Min-Ho Oh, Byung-Duk Lee, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim
  • Patent number: 8698179
    Abstract: In one aspect, a cathode including the first metal layer, the transparent conductive layer formed on the first metal layer, and the second metal layer formed on the transparent conductive layer is applied to the organic light emitting device and thicknesses of the first metal layer, the transparent conductive layer, and the second metal layer are controlled so that the external light reflection of the organic light emitting device is prevented. The cathode may further include the third metal layer formed on the second metal layer.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hwan Cho, Yoon-Hyeung Cho, Byoung-Duk Lee, Min-Ho Oh, Yong-Tak Kim, So-Young Lee, Yun-Ah Chung, Seung-Yong Song, Jong-Hyuk Lee
  • Publication number: 20140077183
    Abstract: A thin film encapsulation unit including an inorganic layer, a first organic layer on the inorganic layer and including a light-blocking unit and a light-transmitting unit, and a reflection-preventing layer on the first organic layer.
    Type: Application
    Filed: June 11, 2013
    Publication date: March 20, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Byoung-Duk Lee, Yun-Ah Chung, Yoon-Hyeung Cho
  • Patent number: 8624490
    Abstract: An organic light-emitting device including a first substrate with an array of organic light-emitting pixels formed thereon, and a second substrate is disclosed. A transparent moisture absorption layer is disposed between the first and second substrates. The transparent moisture absorption layer efficiently absorbs moisture and/or oxygen, and thus the lifetime characteristics of the organic light-emitting device are improved. The transparent moisture absorption layer has a transmittance of about 85% or higher with respect to visible light. The layer has a thickness of about 10 to about 60,000 nm and a refractive index of about 1.45 to about 1.65 in an inert and/air atmosphere. The layer is formed on the second substrate by using chemical vapor deposition or physical vapor deposition.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Baek Choi, Won-Jong Kim, Jong-Hyuk Lee, Yoon-Hyeung Cho, Min-Ho Oh, Byoung-Duk Lee