Patents by Inventor Dong Soo Choi

Dong Soo Choi 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: 7648405
    Abstract: A method of manufacturing an organic electroluminescence device whereby an encapsulating layer is formed by coating an encapsulating substrate with an encapsulating layer-forming composition and thermally processing the encapsulating substrate. A plasma treatment is performed on the encapsulating substrate having the encapsulating layer. A sealant is applied to at least one of the plasma treated encapsulating substrate and a substrate on which an organic electroluminescent unit including a first electrode, an organic layer, and a second electrode, which are sequentially stacked, is deposited. The sealing substrate and the substrate on which the organic electroluminescent unit is deposited are combined. Contaminants generated around the encapsulating layer and generated in the thermal process can be effectively removed by the cleaning process using plasma. Therefore, the interfacial adhesion between the sealant and the substrate is greatly improved, thereby preventing permeation of external air, moisture, etc.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: January 19, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Seung-Yong Song, Jin-Woo Park
  • Publication number: 20090247040
    Abstract: A flat panel display and method of fabricating the same are disclosed. The flat panel display includes a first substrate having a pixel region; a light-emitting element located on the pixel region; a second substrate located opposite the first substrate; and a sealant located between the first and second substrates to cover the light-emitting element. At least one of the first and second substrates includes a groove formed around at least a portion of the circumference surrounding the pixel region. When the first and second substrates are pressed together with the sealant between them, the sealant spreads, covering the light-emitting element, and at least partially filling the groove.
    Type: Application
    Filed: May 27, 2009
    Publication date: October 1, 2009
    Inventors: Dong-Soo Choi, Jin-Woo Park, Seung-Yong Song
  • Publication number: 20090221109
    Abstract: An organic light emitting display device includes a first substrate, an array of organic light emitting pixels formed on the substrate, a second substrate opposing the first substrate. A frit seal interconnects the first and second substrates and surrounds the array of organic light emitting pixels. A film structure interposed between the second substrate and the array of organic light emitting pixels and contacts both the second substrate and the array.
    Type: Application
    Filed: May 13, 2009
    Publication date: September 3, 2009
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Dong-Soo Choi, Jin Woo Park, Tae-Seung Kim
  • Patent number: 7554264
    Abstract: A flat panel display and method of fabricating the same are disclosed. The flat panel display includes a first substrate having a pixel region; a light-emitting element located on the pixel region; a second substrate located opposite the first substrate; and a sealant located between the first and second substrates to cover the light-emitting element. At least one of the first and second substrates includes a groove formed around at least a portion of the circumference surrounding the pixel region. When the first and second substrates are pressed together with the sealant between them, the sealant spreads, covering the light-emitting element, and at least partially filling the groove.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: June 30, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jin-Woo Park, Seung-Yong Song
  • Patent number: 7545094
    Abstract: An organic light emitting display device includes a first substrate, an array of organic light emitting pixels formed on the substrate, a second substrate opposing the first substrate. A frit seal interconnects the first and second substrates and surrounds the array of organic light emitting pixels. A film structure interposed between the second substrate and the array of organic light emitting pixels and contacts both the second substrate and the array.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: June 9, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-Soo Choi, Jin-Woo Park, Tae-Seung Kim
  • Patent number: 7431628
    Abstract: A flat panel display device, a panel of a flat panel display device, and a method of manufacturing a flat panel display device, in which a sealing effect and a resistance to a pressure are increased, and sealing is performed using a glass frit are disclosed. In one aspect, the method includes forming at least a light emitting unit on a surface of a substrate, the light emitting unit including a plurality of light emitting elements, preparing a sealing member to be placed opposite the surface of the substrate, applying a glass frit to an opposing surface of either the substrate or the sealing member to be disposed around the light emitting unit, applying a sealant to the opposing surface of either the substrate or the sealing member to enclose the glass frit, combining the substrate and the sealing member via the sealant, and combining the substrate and the sealing member via the glass frit.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: October 7, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin-Woo Park, Dong-Soo Choi, Seung-Yong Song
  • Publication number: 20080171485
    Abstract: A method of manufacturing a flat panel display device is disclosed. In one embodiment, the method includes: i) forming a plurality of light emitting units on a first substrate, each of the plurality of light emitting units including a light emitting element, ii) providing a second substrate, iii) placing glass frits between the first and second substrates, iv) radiating a first laser beam, having a first intensity, on one of the first and second substrates, wherein the first laser is configured to melt the grass frits and combine the first and second substrates and v) radiating a second laser beam, having a second intensity, on the first irradiated region so as to anneal the first or second substrate, wherein the second intensity is different from the first intensity. According to one embodiment, the substrate cutting quality can be simply improved.
    Type: Application
    Filed: April 19, 2007
    Publication date: July 17, 2008
    Inventors: Dong-Soo Choi, Jang-Hwan Shin, Young-Cheol Joo, Jin-Woo Park
  • Publication number: 20080111479
    Abstract: Disclosed is an organic light emitting display device and a fabricating method of the same. More particularly, the present invention relates to an organic light emitting display device capable of uniformly sealing an inorganic sealing agent, and a fabricating method of the same. The organic light emitting display device according to the present invention includes a first substrate including a pixel array having at least one organic light emitting diode formed therein; a second substrate coalesced to the first substrate; and an inorganic sealing agent surrounding the pixel array and having at least a straight-line portion and a corner portion, wherein the straight-line portion and the corner portion of the inorganic sealing agent have the same effective sealing width.
    Type: Application
    Filed: August 24, 2007
    Publication date: May 15, 2008
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Dong Soo Choi, Young Cheol Zu, Jin Woo Park
  • Publication number: 20070170324
    Abstract: Disclosed are an organic light emitting display and a fabricating method of the same, which form a bracket by at least one material selected from the group consisting of a plastic, a reinforcement plastic, or a high elastic and high molecular organic material in order to enhance an adhesive strength and an elasticity of a substrate and a bracket adhered to each other by means of an adhesive. A first substrate includes a pixel region and a non-pixel region. At least one organic light emitting diode is formed at the pixel region and having a first electrode, an organic layer, and a second electrode. The non-pixel region is formed beside pixel region. A second substrate is bonded to a first side of the first substrate to seal the pixel region. A frit is disposed between the non-pixel region of the first substrate and the second substrate and adheres the first and second substrates to each other.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Jae Sun Lee, Jin Woo Park, Ho Seok Lee, Dong Soo Choi, Dae Ho Lim, Ung Soo Lee, Chan Hee Wang
  • Publication number: 20070170845
    Abstract: Disclosed is an organic light-emitting display device comprising: a pixel region wherein an organic light-emitting device comprised of a first electrode, an organic thin film layer and a second electrode is formed; a first substrate comprising a non-pixel region encompassing the pixel region; a second substrate disposed on the upper of the first substrate to be overlapped with the pixel region and a portion of the non-pixel region; and a plurality of frits provided between the first substrate and the second substrate and formed in parallel at spaced intervals along the peripheral portion of the pixel region, wherein the first substrate is bonded to the second substrate by the plurality of frits.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong Soo Choi, Jin Woo Park
  • Publication number: 20070170857
    Abstract: Disclosed is an organic light-emitting display device and method of manufacturing the same. Embodiments provide an organic light-emitting display device including a first substrate comprising a pixel region wherein an organic light-emitting display device comprised of a first electrode, an organic thin layer and a second electrode is formed. The first substrate also includes a non-pixel region encompassing the pixel region, where the non-pixel region includes a pad for receiving a signal from an external driver circuit. The non-pixel region also includes a metal line for transferring the signal provided through the pad to the organic light-emitting device. A second substrate is disposed over the first substrate to overlap the pixel region and a portion of the non-pixel region.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong Soo Choi, Jong Woo Lee, Jin Woo Park
  • Publication number: 20070170861
    Abstract: A preparing method of an organic light-emitting display device, completely encapsulating a substrate and an encapsulation substrate with a frit and a supplement member is disclosed. It is an aspect of the present invention to provide an organic light-emitting display device comprising: a first substrate comprising a pixel region and a non-pixel region on the side thereof wherein an organic light-emitting element is formed in the pixel region and the non-pixel region is formed in the outer side of the pixel region; a second substrate bonded to one region including the pixel region of the first substrate; encapsulating member provided between the non-pixel region of the first substrate and the second substrate and adhering the first substrate to the second substrate; and supplement member configured of resin formed to be spaced from the frit.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Jong Woo Lee, Jin Woo Park, Dae Ho Lim, Dong Soo Choi
  • Publication number: 20070170860
    Abstract: Disclosed is an organic light-emitting display device in which a substrate and an encapsulation substrate are joined by a frit and a reinforcing structure. The first substrate has a pixel region in which an organic light-emitting diode is formed, and a non-pixel region formed outside the pixel region. The second substrate is attached the first substrate by the frit. A bracket is joined with substrates by the reinforcing structure. A curable material is applied to inside the frame, moves between the first and second substrates, and then cured to form the reinforcing structure.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong Soo Choi, Dae Ho Lim, Jae Sun Lee, Jin Woo Park, Jong Woo Lee, Ung Soo Lee, Sang Wook Sin
  • Publication number: 20070171637
    Abstract: Disclosed is a manufacturing method of an organic light emitting display device, which allows a frit to be sufficiently fused by illuminating a laser beam such that a width of the laser beam may be above a width of the frit by adjusting power of the laser beam. The manufacturing method of an organic light emitting display device comprises the steps of: a) forming an organic light emitting element comprising a first electrode, an organic thin film and a second electrode on a pixel region of a first substrate divided into the pixel region and a non-pixel region; b) forming a flit along a surrounding of a second substrate corresponding to the non-pixel region; c) arranging the second substrate on an upper side of the first substrate to be superposed to a part of the pixel region and the non-pixel region; and d) attaching the first substrate and the second substrate by illuminating laser beam with a width above a width of the frit from a back surface of the second substrate.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventor: Dong Soo Choi
  • Publication number: 20070170859
    Abstract: Disclosed are an organic light emitting display and a method of fabricating the same that are capable of preventing deterioration of adhesive strength of a glass frit for sealing a substrate. An organic light emitting device according to one embodiment of the present invention includes a first substrate including a pixel region and a non-pixel region, an array of organic light emitting pixels formed over the pixel region of the first substrate, and a second substrate placed over the first substrate, the array being interposed between the first and second substrates.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong Soo Choi, Jin Woo Park
  • Publication number: 20070170846
    Abstract: An OLED having an improved adhesion characteristic and a method of fabricating the same are provided. The OLED includes: a substrate having a pixel region and a non-pixel region except the pixel region; and an encapsulation substrate for encapsulating the substrate. The pixel region includes: a thin film transistor including a semiconductor layer, a gate electrode, and source and drain electrodes; a first electrode electrically connected with the thin film transistor; a pixel defining layer disposed on the first electrode; an organic layer having at least an emissive layer formed on the first electrode and the pixel defining layer; a second electrode disposed on the organic layer; and at least one inorganic layer. The non-pixel region includes at least one inorganic layer, and a frit disposed on the inorganic layer to encapsulate the substrate and the encapsulation substrate.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 26, 2007
    Inventors: Dong-Soo Choi, Jin-Woo Park, Won-Kyu Kwak, Deuk-Jong Kim, Seung-Yong Song
  • Publication number: 20070170455
    Abstract: An organic light emitting device according to one embodiment of the present invention comprises a first substrate defining a pixel region and a non-pixel region; an array of organic light emitting pixels formed in the pixel region of the first substrate; a second substrate placed over the first substrate, the array being interposed between the first and second substrates; a frit seal interposed between and interconnecting the first and second substrates, wherein the frit seal comprises a plurality of elongated segments, which in combination surrounds the array; and at least one conductive line formed in the non-pixel region and elongated substantially parallel to one of the plurality of elongated segments of the frit seal, wherein no conductive line in the non-pixel region is elongated substantially parallel to one of the elongated segments and overlaps the elongated segment substantially parallel thereto when viewed from the first or second substrate.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong-Soo Choi, Jin-Woo Park
  • Publication number: 20070170850
    Abstract: Provided are an organic light emitting display and a method of fabricating the same that are capable of preventing an element from being damaged due to a large amount of heat generated when the laser irradiates a glass frit for sealing a substrate. The organic light emitting display includes: a first substrate comprising a pixel region and a non-pixel region; an array of organic light emitting pixels formed over the pixel region; a conductive line formed over the non-pixel region; a second substrate placed over the first substrate such that the array and the conductive line are interposed between the first and second substrates; and a frit seal interposed between the first and second substrates and surrounding the array, the frit seal interconnecting the first and second substrates, the frit seal comprising a portion overlapping the conductive line, wherein when viewed from the second substrate, the portion of the flit seal substantially eclipses the conductive line.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong-Soo Choi, Jin-Woo Park
  • Publication number: 20070170855
    Abstract: Provided is an organic light emitting display device (OLED) for preventing Newton's rings to improve image quality.
    Type: Application
    Filed: September 29, 2006
    Publication date: July 26, 2007
    Inventors: Dong-Soo Choi, Jin-Woo Park, Hee-Seong Jeong, Hyun-Sook Park
  • Publication number: 20070114909
    Abstract: A flat panel display device, a panel of a flat panel display device, and a method of manufacturing a flat panel display device, in which a sealing effect and a resistance to a pressure are increased, and sealing is performed using a glass frit are disclosed. In one aspect, the method includes forming at least a light emitting unit on a surface of a substrate, the light emitting unit including a plurality of light emitting elements, preparing a sealing member to be placed opposite the surface of the substrate, applying a glass frit to an opposing surface of either the substrate or the sealing member to be disposed around the light emitting unit, applying a sealant to the opposing surface of either the substrate or the sealing member to enclose the glass frit, combining the substrate and the sealing member via the sealant, and combining the substrate and the sealing member via the glass frit.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 24, 2007
    Inventors: Jin-Woo Park, Dong-Soo Choi, Seung-Yong Song