Patents by Inventor Won-Kyu Choe

Won-Kyu Choe 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: 20210134914
    Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hun KIM, Hyo-Jeong KWON, Moon-Won CHANG, Won-Kyu CHOE
  • Patent number: 10910456
    Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: February 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hun Kim, Hyo-Jeong Kwon, Moon-Won Chang, Won-Kyu Choe
  • Patent number: 9306191
    Abstract: An organic light-emitting display apparatus includes: a substrate; a plurality of thin film transistors on the substrate, each of the thin film transistors including an active layer, a gate electrode, and source and drain electrodes; first electrodes electrically connected to the plurality of thin film transistors, respectively, and being on respective pixels corresponding to the plurality of thin film transistors; organic layers on the first electrodes, respectively, and including light-emitting layers; auxiliary electrodes each of which is on at least a portion between adjacent organic layers of the organic layers; and a second electrode facing the first electrodes and covering the organic layers and the auxiliary electrodes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Won-Kyu Choe
  • Publication number: 20150349287
    Abstract: An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.
    Type: Application
    Filed: December 29, 2014
    Publication date: December 3, 2015
    Inventors: Hun KIM, Hyo-Jeong KWON, Moon-Won CHANG, Won-Kyu CHOE
  • Patent number: 9165996
    Abstract: An organic light emitting display device and a method of manufacturing the same are proposed. The organic light emitting display device includes a display unit having a plurality of sub-pixels, each of which includes a pixel electrode and a counter electrode facing each other and a light emitting layer interposed therebetween; an encapsulation substrate, which covers the display unit; and an auxiliary electrode, which is formed on a surface of the encapsulation substrate, which faces the display unit, and is connected to the counter electrode. Using the structure, voltage drop may be effectively reduced by connecting an auxiliary electrode formed on an encapsulation substrate to a counter electrode, thereby improving reliability of an organic light emitting display device employing the same.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Won-Kyu Choe
  • Publication number: 20140110674
    Abstract: An organic light emitting display device and a method of manufacturing the same are proposed. The organic light emitting display device includes a display unit having a plurality of sub-pixels, each of which includes a pixel electrode and a counter electrode facing each other and a light emitting layer interposed therebetween; an encapsulation substrate, which covers the display unit; and an auxiliary electrode, which is formed on a surface of the encapsulation substrate, which faces the display unit, and is connected to the counter electrode. Using the structure, voltage drop may be effectively reduced by connecting an auxiliary electrode formed on an encapsulation substrate to a counter electrode, thereby improving reliability of an organic light emitting display device employing the same.
    Type: Application
    Filed: March 5, 2013
    Publication date: April 24, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Won-Kyu Choe
  • Publication number: 20140110680
    Abstract: An organic light-emitting display apparatus includes: a substrate; a plurality of thin film transistors on the substrate, each of the thin film transistors including an active layer, a gate electrode, and source and drain electrodes; first electrodes electrically connected to the plurality of thin film transistors, respectively, and being on respective pixels corresponding to the plurality of thin film transistors; organic layers on the first electrodes, respectively, and including light-emitting layers; auxiliary electrodes each of which is on at least a portion between adjacent organic layers of the organic layers; and a second electrode facing the first electrodes and covering the organic layers and the auxiliary electrodes.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 24, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Won-Kyu Choe
  • Patent number: 8175124
    Abstract: A frit sealing system for combining a first substrate and a second substrate using frit comprises a laser generating a laser beam, and a homogenizer normalizing the intensity of the laser beam within a cross section of the laser beam in the transverse direction. The frit sealing system further comprises a support apparatus configured to hold a first and a second substrate with frit interposed between them, wherein the frit is configured to be cured by heat generated from the laser beam and thereby solidifying and binding the first and the second substrates.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: May 8, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min Lee, Hee-Seong Jeong, Choong-Ho Lee, Jun-Sik Oh, Je-Kil Ryu, Won-Kyu Choe
  • Patent number: 7942716
    Abstract: A frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, and more particularly, a frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, which includes a pressure member so as to physically pressurize a first substrate and a second substrate, thereby increasing adhesion of a frit when the first substrate and the second substrate are adhered to each other by using the frit.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: May 17, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min Lee, Seok-Joon Yoon, Choong-Ho Lee, Hee-Seong Jeong, Tae-Wook Kang, Won-Kyu Choe
  • Patent number: 7928431
    Abstract: An organic light emitting display apparatus with reduced infiltration of external moisture and oxygen comprises: a substrate comprising a plurality of TFT devices; and a display region formed on the substrate; wherein the display region comprises a base layer which comprises first electrodes electrically connected to the TFT devices and defining a pixel region, an organic layer formed on the base layer, and a second electrode layer formed in a structure covering the base layer and organic layer completely.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: April 19, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Won-Kyu Choe, Ji-Yeon Baek
  • Patent number: 7807009
    Abstract: An hermetic sealing apparatus is discussed. The apparatus may include one or more of the following a glass mask disposed on an upper surface of a first substrate, a support member disposed on an upper surface of the glass mask, a laser irradiation member positioned spaced on the upper surface of the glass mask, a plurality of lower support members disposed in a contour region of a lower surface of the second substrate, and pressing members disposed on a lower surface of the lower support members.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: October 5, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min Lee, Choong-Ho Lee, Seok-Joon Yoon, Won-Kyu Choe, Tae-Wook Kang
  • Patent number: 7791267
    Abstract: An organic light emitting display and a method of fabricating the same are disclosed. One embodiment of the organic light emitting display includes a substrate including a pixel region and a cathode-on-driver (COD) region adjacent to the pixel region, a thin film transistor formed on the pixel region of the substrate, and a planarization film formed on an entire surface of the substrate to cover the thin film transistor. The organic light emitting display also includes an organic light emitting diode including a first pixel electrode formed on the planarization film and connected to the thin film transistor, an organic light emitting layer formed on the first pixel electrode, and a second pixel electrode formed on an entire surface of the substrate over the organic light emitting layer. The organic light emitting display further includes a pixel definition layer which is provided between the planarization film and the second pixel electrode.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: September 7, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Ji-Yeon Baek, Won-Kyu Choe, Keun-Soo Lee, Dong-Young Sung
  • Publication number: 20090233513
    Abstract: A frit sealing system for combining a first substrate and a second substrate using frit comprises a laser generating a laser beam, and a homogenizer normalizing the intensity of the laser beam within a cross section of the laser beam in the transverse direction. The frit sealing system further comprises a support apparatus configured to hold a first and a second substrate with frit interposed between them, wherein the frit is configured to be cured by heat generated from the laser beam and thereby solidifying and binding the first and the second substrates.
    Type: Application
    Filed: August 4, 2008
    Publication date: September 17, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jung-Min Lee, Hee-Seong Jeong, Choong-Ho Lee, Jun-Sik Oh, Je-Kil Ryu, Won-Kyu Choe
  • Publication number: 20090233514
    Abstract: A frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, and more particularly, a frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, which includes a pressure member so as to physically pressurize a first substrate and a second substrate, thereby increasing adhesion of a frit when the first substrate and the second substrate are adhered to each other by using the frit.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 17, 2009
    Inventors: Jung-Min Lee, Seok-Joon Yoon, Choong-Ho Lee, Hee-Seong Jeong, Tae-Wook Kang, Won-Kyu Choe
  • Publication number: 20090229745
    Abstract: An hermetic sealing apparatus is discussed. The apparatus may include one or more of the following a glass mask disposed on an upper surface of a first substrate, a support member disposed on an upper surface of the glass mask, a laser irradiation member positioned spaced on the upper surface of the glass mask, a plurality of lower support members disposed in a contour region of a lower surface of the second substrate, and pressing members disposed on a lower surface of the lower support members.
    Type: Application
    Filed: August 18, 2008
    Publication date: September 17, 2009
    Inventors: Jung-Min Lee, Choong-Ho Lee, Seok-Joon Yoon, Won-Kyu Choe, Tae-Wook Kang
  • Patent number: 7411345
    Abstract: In particular, one embodiment of the present invention provides an organic electroluminescent display which comprises a light emitting device formed on a lower insulating substrate, and an upper substrate mounted to encapsulate the light emitting device, wherein the upper substrate is provided with a desiccant, the desiccant being formed with at least one hole passing through the desiccant.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: August 12, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ho-Seok Lee, Won-Kyu Choe
  • Publication number: 20080142807
    Abstract: An organic light emitting display apparatus with reduced infiltration of external moisture and oxygen comprises: a substrate comprising a plurality of TFT devices; and a display region formed on the substrate; wherein the display region comprises a base layer which comprises first electrodes electrically connected to the TFT devices and defining a pixel region, an organic layer formed on the base layer, and a second electrode layer formed in a structure covering the base layer and organic layer completely.
    Type: Application
    Filed: November 5, 2007
    Publication date: June 19, 2008
    Inventors: Won-Kyu Choe, Ji-Yeon Baek
  • Publication number: 20080067932
    Abstract: An organic light emitting display and a method of fabricating the same are disclosed. One embodiment of the organic light emitting display includes a substrate including a pixel region and a cathode-on-driver (COD) region adjacent to the pixel region, a thin film transistor formed on the pixel region of the substrate, and a planarization film formed on an entire surface of the substrate to cover the thin film transistor. The organic light emitting display also includes an organic light emitting diode including a first pixel electrode formed on the planarization film and connected to the thin film transistor, an organic light emitting layer formed on the first pixel electrode, and a second pixel electrode formed on an entire surface of the substrate over the organic light emitting layer. The organic light emitting display further includes a pixel definition layer which is provided between the planarization film and the second pixel electrode.
    Type: Application
    Filed: January 5, 2007
    Publication date: March 20, 2008
    Inventors: Ji-Yeon Baek, Won-Kyu Choe, Keun-Soo Lee, Dong-Young Sung
  • Publication number: 20050104513
    Abstract: In particular, one embodiment of the present invention provides an organic electroluminescent display which comprises a light emitting device formed on a lower insulating substrate, and an upper substrate mounted to encapsulate the light emitting device, wherein the upper substrate is provided with a desiccant, the desiccant being formed with at least one hole passing through the desiccant.
    Type: Application
    Filed: November 16, 2004
    Publication date: May 19, 2005
    Inventors: Ho-Seok Lee, Won-Kyu Choe