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: 8729796
    Abstract: Provided is an organic light emitting display device (OLED) for preventing Newton's rings to improve image quality.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jin-Woo Park, Hee-Seong Jeong, Hyun-Sook Park
  • Publication number: 20130237115
    Abstract: Disclosed is an organic light-emitting display device in which the substrate and the encapsulation substrate are attached to each other by using a frit. The organic light-emitting display device includes a first substrate including a pixel region in which an organic light-emitting diode is formed, and a non-pixel region. The organic light-emitting diode includes an organic light-emitting layer between a first electrode and a second electrode. A second substrate attached to the first substrate. A frit is provided between the non-pixel region of the first substrate and the second substrate to attach the first substrate and the second substrate. A reinforcement material of resin is formed outside the frit.
    Type: Application
    Filed: April 8, 2013
    Publication date: September 12, 2013
    Inventors: Dong-Soo Choi, Dae Ho Lim, Jae Sun Lee, Jin Woo Park, Jong Woo Lee, Sang Wook Sin, Ung Soo Lee
  • Patent number: 8415880
    Abstract: Disclosed is an organic light-emitting display device in which the substrate and the encapsulation substrate are attached to each other by using a frit. The organic light-emitting display device includes a first substrate including a pixel region in which an organic light-emitting diode is formed, and a non-pixel region. The organic light-emitting diode includes an organic light-emitting layer between a first electrode and a second electrode. A second substrate attached to the first substrate. A frit is provided between the non-pixel region of the first substrate and the second substrate to attach the first substrate and the second substrate. A reinforcement material of resin is formed outside the frit.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: April 9, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Soo Choi, Dae Ho Lim, Jae Sun Lee, Jin Woo Park, Jong Woo Lee, Sang Wook Sin, Ung Soo Lee
  • Patent number: 8299705
    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: Grant
    Filed: September 29, 2006
    Date of Patent: October 30, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Soo Choi
  • Patent number: 8164257
    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: Grant
    Filed: September 29, 2006
    Date of Patent: April 24, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong Soo Choi, Jin Woo Park
  • Patent number: 8120249
    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: Grant
    Filed: September 29, 2006
    Date of Patent: February 21, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jin-Woo Park
  • Patent number: 8063561
    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: Grant
    Filed: September 29, 2006
    Date of Patent: November 22, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong Soo Choi, Jin Woo Park
  • Patent number: 8038495
    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: Grant
    Filed: September 29, 2006
    Date of Patent: October 18, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jong Woo Lee, Jin Woo Park, Dae Ho Lim, Dong Soo Choi
  • Patent number: 8026511
    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: Grant
    Filed: September 29, 2006
    Date of Patent: September 27, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jin-Woo Park
  • Patent number: 7982397
    Abstract: An organic electroluminescence display device comprising a light-emitting device formed on a lower insulating substrate, an upper substrate spaced apart from the lower insulating substrate, and a sealant between the lower insulating substrate and the upper substrate and covering the light-emitting device. The upper substrate comprises a moisture absorbing material.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: July 19, 2011
    Assignee: Samsung Mobile Display Co., Ltd
    Inventors: Dong-Soo Choi, Kwan-Hee Lee, Seung-Yong Song
  • Patent number: 7955717
    Abstract: An organic electroluminescent device and a method of preparing the same are provided. The organic electroluminescent device includes a sealing layer which is formed on a sealing substrate, and which includes a cohesion layer, a transparent polymer layer, and a transparent moisture absorption layer. Since the transparent moisture absorption layer of the organic electroluminescent device is provided to a sealing substrate using an attaching method, the organic electroluminescent device has an improved life span property due to a firm sealed structure and better light extraction efficiency due to the transparent moisture absorption layer below the sealing substrate.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: June 7, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jang-Hyuk Kwon, Jin-Woo Park, Seung-Yong Song, Jong-Hyuk Lee, Yoon-Hyeung Cho
  • Patent number: 7944143
    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: Grant
    Filed: September 29, 2006
    Date of Patent: May 17, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong Soo Choi, Dae Ho Lim, Jae Sun Lee, Jin Woo Park, Jong Woo Lee, Ung Soo Lee, Sang Wook Sin
  • Patent number: 7867054
    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: May 27, 2009
    Date of Patent: January 11, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jin-Woo Park, Seung-Yong Song
  • Patent number: 7838314
    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: May 13, 2009
    Date of Patent: November 23, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jin Woo Park, Tae-Seung Kim
  • Patent number: 7825594
    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: Grant
    Filed: September 29, 2006
    Date of Patent: November 2, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae Sun Lee, Jin Woo Park, Ho Seok Lee, Dong Soo Choi, Dae Ho Lim, Ung Soo Lee, Chan Hee Wang
  • Patent number: 7780493
    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: Grant
    Filed: April 19, 2007
    Date of Patent: August 24, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong-Soo Choi, Jang-Hwan Shin, Young-Cheol Joo, Jin-Woo Park
  • Patent number: 7733019
    Abstract: A flat panel display device. The device includes a plurality of self-luminant devices, each of which includes at least a light emitting layer, formed on every pixel, and a lens sheet having a plurality of condensing lenses that correspond to the self-luminant devices and direct the light emitted from the self-luminant devices toward a predetermined direction. A distance between the light emitting layer and an exterior portion of the condensing lens in the direction of propagation of the light is between 50 and 500 microns so as not to overlap images of neighboring sub-pixels, that are expanded by the condensing lenses. Therefore, a lowering of image sharpness that is caused by the condensing lenses can be prevented, while a light coupling efficiency and a brightness are improved.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: June 8, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seung-Yong Song, Jang-Hyuk Kwon, Jin-Woo Park, Dong-Soo Choi, Min-Gyu Lee
  • 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