Patents by Inventor Yun-Ah Chung

Yun-Ah Chung 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: 9070889
    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: June 30, 2015
    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: 20150108453
    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: Application
    Filed: October 1, 2014
    Publication date: April 23, 2015
    Inventors: Min-Ho OH, Yoon-Hyeung CHO, Byoung-Duk LEE, Yong-Tak KIM, So-Young LEE, Yun-Ah CHUNG
  • Publication number: 20150060797
    Abstract: In an aspect, a composition including an acrylate monomer, and aromatic aryl amine compound, an organic light emitting display apparatus including the composition and a method of manufacturing an organic light emitting display apparatus including the composition are provided.
    Type: Application
    Filed: July 14, 2014
    Publication date: March 5, 2015
    Inventors: Byoung-Duk Lee, Yong-Tack Kim, Jong-Woo Kim, Min-Ho Oh, So-Young Lee, Jin-Hwan Jeon, Yun-Ah Chung, Yoon-Hyeung Cho, Yong-Chan Ju
  • Publication number: 20150048326
    Abstract: Provided is a display apparatus including: a substrate including a display area and a periphery; a display element disposed on the display area of the substrate; and an encapsulation layer including a first inorganic layer, an organic layer, and a second inorganic layer that are sequentially formed to cover the display element, wherein the organic layer includes: a first organic layer formed on of the periphery of the substrate and on the substrate; and a second organic layer formed on the first inorganic layer so as to overlap the display element.
    Type: Application
    Filed: May 21, 2014
    Publication date: February 19, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyeung Cho, Min-Ho Oh, Byoung-Duk Lee, Yong-Tak Kim, Jong-Woo Kim, Yong-Chan Ju, Yun-Ah Chung
  • Publication number: 20150021569
    Abstract: A display apparatus and a filter for improving color purity (color saturation filter) are disclosed. In one aspect, the display apparatus includes a substrate, a display device formed on the substrate and having a plurality of pixel areas that emit different colors of light, and a color saturation filter on the display device. The color saturation filter is formed with a substantially uniform thickness over the plurality of pixel areas and has a transmissivity such that a full width at half maximum at the central wavelength of blue light emitted from one of the pixel areas is about 100 nm or less.
    Type: Application
    Filed: April 29, 2014
    Publication date: January 22, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Byoung-Duk LEE, Sang-Hwan CHO, Yun-Ah CHUNG
  • 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
  • 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
  • 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: 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
  • 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: 8461760
    Abstract: Thin film encapsulation for a flat panel display device and a method of manufacturing the thin film encapsulation structure. The thin film encapsulation structure of the flat panel display device includes thin film layers covering a display unit formed on a substrate, wherein the thin film layers comprise a plurality of inorganic layers and a hexamethyldisiloxane (HMDSO) layer interposed between the inorganic layers. Accordingly, as multiple layers of the thin film encapsulation structure may be formed in a single chamber, the manufacturing process may be simplified, and also, as the HMDSO layer, which is flexible, absorbs stresses, a risk of cracks occurring may also be reduced.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: June 11, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Sang-Hwan Cho, Byoung-Duk Lee, Sun-Young Jung, Yun-Ah Chung, Soo-Youn Kim, Dong-Jin Kim, Ji-Young Moon, Seung-Yong Song, Jong-Hyuk Lee
  • Patent number: 8410518
    Abstract: In one aspect, an organic light emitting diode (OLED) display that includes: a substrate; an organic light emitting element on the substrate; a thin film encapsulation layer on the substrate and covering the organic light emitting element; a polymer carpet layer directly on the thin film encapsulation layer; and a cover film directly on the polymer carpet layer is provided.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: April 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yun-Ah Chung
  • Publication number: 20120319151
    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: Application
    Filed: April 10, 2012
    Publication date: December 20, 2012
    Applicant: Samsung Mobile 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: 20120313136
    Abstract: In one aspect, an organic light emitting diode (OLED) display that includes: a substrate; an organic light emitting element on the substrate; a thin film encapsulation layer on the substrate and covering the organic light emitting element; a polymer carpet layer directly on the thin film encapsulation layer; and a cover film directly on the polymer carpet layer is provided.
    Type: Application
    Filed: December 8, 2011
    Publication date: December 13, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventor: Yun-Ah Chung
  • Publication number: 20120256534
    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: Application
    Filed: November 22, 2011
    Publication date: October 11, 2012
    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
  • Publication number: 20120256201
    Abstract: An OLED display includes: a substrate; an organic light emitting element formed on the substrate and including a first electrode, an emission layer, and a second electrode; and an encapsulation layer formed on the substrate while covering the organic light emitting element. The encapsulation layer includes an organic layer and an inorganic layer, and a protrusion and depression structure is formed in an interface between the organic layer and the inorganic layer.
    Type: Application
    Filed: November 15, 2011
    Publication date: October 11, 2012
    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
  • Publication number: 20120256202
    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: Application
    Filed: November 16, 2011
    Publication date: October 11, 2012
    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: 20120235171
    Abstract: An organic light emitting diode display includes a substrate having a plurality of organic light emitting elements thereon and a thin film encapsulation layer on the substrate. The thin film encapsulation layer covers the organic light emitting elements, and the thin film encapsulation layer includes a first porous inorganic layer and a second inorganic layer on the first porous inorganic layer.
    Type: Application
    Filed: November 9, 2011
    Publication date: September 20, 2012
    Inventors: Yong-Tak KIM, Yoon-Hyeung Cho, Min-Ho Oh, Byoung-Duk Lee, So-Young Lee, Sang-Hwan Cho, Yun-Ah Chung, Seung-Yong Song, Jong-Hyuk Lee
  • Publication number: 20120154717
    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: Application
    Filed: September 23, 2011
    Publication date: June 21, 2012
    Applicant: SAMSUNG MOBILE 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