Patents by Inventor Steve Y. G. Mo

Steve Y. G. Mo 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: 9240487
    Abstract: A method of manufacturing a thin film transistor having a compound semiconductor with oxygen as a semiconductor layer and a method of manufacturing an organic light emitting display having the thin film transistor include: forming a gate electrode on an insulating substrate; forming a gate insulating layer on the gate electrode; forming a semiconductor layer including oxygen ions on the gate insulating layer, and including a channel region, a source region, and a drain region; forming a source electrode and a drain electrode to contact the semiconductor layer in the source region and the drain region, respectively; and forming a passivation layer on the semiconductor layer by coating an organic material, wherein a carrier density of the semiconductor layer is maintained in the range of 1E+17 to 1E+18/cm3 to have stable electrical property.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: January 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hun-Jung Lee, Jae-Kyeong Jeong, Hyun-Soo Shin, Jong-Han Jeong, Jin-Seong Park, Steve Y. G. Mo
  • Patent number: 8598781
    Abstract: An Organic Light Emitting Display (OLED) and a method of fabricating the OLED includes: a substrate including a pixel region and a non-pixel region; a gate electrode arranged in the non-pixel region of the substrate; a first insulating layer arranged on the substrate having the gate electrode formed thereon, and having an open groove on an upper surface of a region opposite to the gate electrode; a semiconductor layer buried in the groove and including a source region, a channel region and a drain region; and an organic thin film layer arranged in the pixel region of the substrate. A common electrode is arranged between the drain region of the semiconductor layer and the organic thin film layer to electrically couple the drain region to the organic thin film layer.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hun-Jung Lee, Jae-Kyeong Jeong, Steve Y. G. Mo
  • Patent number: 8502230
    Abstract: An organic light-emitting display is disclosed. In one embodiment, the display includes i) a substrate, ii) a thin film transistor formed on the substrate, and comprising i) a gate electrode, ii) an active layer electrically insulated from the gate electrode, and iii) source and drain electrodes that are electrically connected to the active layer and iii) a first electrode electrically connected to the thin film transistor. The display further includes an intermediate layer formed on the first electrode and comprising an organic emission layer and a second electrode formed on the intermediate layer, wherein the source electrode or the drain electrode has an optical blocking portion extending in the direction of substrate thickness.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: August 6, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Han Jeong, Steve Y.G. Mo, Eun-Hyun Kim, Hyun-Sun Park
  • Patent number: 8247266
    Abstract: A thin film transistor (TFT) using an oxide semiconductor layer as an active layer, a method of manufacturing the TFT, and a flat panel display (FPD) including the TFT are taught. The TFT includes a gate electrode formed on a substrate, an oxide semiconductor layer electrically insulated from the gate electrode by a gate insulating layer, and the oxide semiconductor layer including a channel region, a source region, and a drain region, and a source electrode and a drain electrode respectively electrically contacting the source region and the drain region. The oxide semiconductor layer is formed of an InZnO or IZO layer (indium zinc oxide layer) including Zr. The carrier density of the IZO layer is controlled to be 1×1013 to 1×1018 #cm?3 by controlling an amount of Zr.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: August 21, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Seong Park, Kwang-Suk Kim, Jong-Han Jeong, Jae-Kyeong Jeong, Steve Y. G. Mo
  • Patent number: 8227804
    Abstract: An organic light-emitting display device including: a gate electrode formed on a substrate; a first insulating layer formed on the gate electrode; an active layer formed on the first insulating layer, facing the gate electrode; a second insulating layer formed on the first insulating layer, having first openings to expose the active layer; source/drain electrodes formed on the second insulating layer, so as to be connected to exposed portions of the active layer through the first openings; and a metal layer formed on the active layer and contacting the second insulating layer.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: July 24, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Huiwon Yang, Ki-Ju Im, Chaun-Gi Choi, Eun-Hyun Kim, Steve Y. G. Mo
  • Publication number: 20110297948
    Abstract: An organic light-emitting display is disclosed. In one embodiment, the display includes i) a substrate, ii) a thin film transistor formed on the substrate, and comprising i) a gate electrode, ii) an active layer electrically insulated from the gate electrode, and iii) source and drain electrodes that are electrically connected to the active layer and iii) a first electrode electrically connected to the thin film transistor. The display further includes an intermediate layer formed on the first electrode and comprising an organic emission layer and a second electrode formed on the intermediate layer, wherein the source electrode or the drain electrode has an optical blocking portion extending in the direction of substrate thickness.
    Type: Application
    Filed: March 23, 2011
    Publication date: December 8, 2011
    Applicant: Samsung Mobile Display Co. Ltd.
    Inventors: Jong-Han Jeong, Steve Y.G. Mo, Eun-Hyun Kim, Hyun-Sun Park
  • Publication number: 20110212580
    Abstract: A thin film transistor (TFT) using an oxide semiconductor layer as an active layer, a method of manufacturing the TFT, and a flat panel display (FPD) including the TFT are taught. The TFT includes a gate electrode formed on a substrate, an oxide semiconductor layer electrically insulated from the gate electrode by a gate insulating layer, and the oxide semiconductor layer including a channel region, a source region, and a drain region, and a source electrode and a drain electrode respectively electrically contacting the source region and the drain region. The oxide semiconductor layer is formed of an InZnO or IZO layer (indium zinc oxide layer) including Zr. The carrier density of the IZO layer is controlled to be 1×1013 to 1×1018 #cm?3 by controlling an amount of Zr.
    Type: Application
    Filed: May 6, 2011
    Publication date: September 1, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jin-Seong Park, Kwang-Suk Kim, Jong-Han Jeong, Jae-Kyeong Jeong, Steve Y. G. Mo
  • Patent number: 8008658
    Abstract: A thin film transistor (TFT) using an oxide semiconductor layer as an active layer, a method of manufacturing the TFT, and a flat panel display (FPD) including the TFT are taught. The TFT includes a gate electrode formed on a substrate, an oxide semiconductor layer electrically insulated from the gate electrode by a gate insulating layer, and the oxide semiconductor layer including a channel region, a source region, and a drain region, and a source electrode and a drain electrode respectively electrically contacting the source region and the drain region. The oxide semiconductor layer is formed of an InZnO or IZO layer (indium zinc oxide layer) including Zr. The carrier density of the IZO layer is controlled to be 1×1013 to 1×1018 #cm?3 by controlling an amount of Zr.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: August 30, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Seong Park, Kwang-Suk Kim, Jong-Han Jeong, Jae-Kyeong Jeong, Steve Y. G. Mo
  • Publication number: 20110198584
    Abstract: An organic light-emitting display device including: a gate electrode formed on a substrate; a first insulating layer formed on the gate electrode; an active layer formed on the first insulating layer, facing the gate electrode; a second insulating layer formed on the first insulating layer, having first openings to expose the active layer; source/drain electrodes formed on the second insulating layer, so as to be connected to exposed portions of the active layer through the first openings; and a metal layer formed on the active layer and contacting the second insulating layer.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 18, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Huiwon YANG, Ki-Ju Im, Chaun-Gi Choi, Eun-Hyun Kim, Steve Y.G. Mo
  • Patent number: 7876038
    Abstract: An organic light emitting display including: a driving thin film transistor (TFT) including a semiconductor layer on a substrate including a source electrode, a drain electrode, and an N-type oxide semiconductor; at least one insulating layer formed on the driving TFT; a pixel defining layer for defining a pixel region on the insulating layer; a cathode electrode coupled to a drain electrode of the driving TFT and patterned to correspond to the pixel region; an electron injection layer arranged over the entire surfaces of the pixel defining layer and the cathode electrode and formed of a material whose band gaps are 3.0 eV to 5.0 eV selected from the group consisting of an oxide, a nitride, a fluoride, and diamond on; an organic light emitting layer formed on the electron injection layer to correspond to the cathode region; and an anode electrode formed on the organic light emitting layer.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: January 25, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hun-Jung Lee, Dong-Won Han, Steve Y. G. Mo
  • Publication number: 20090251047
    Abstract: An Organic Light Emitting Display (OLED) and a method of fabricating the OLED includes: a substrate including a pixel region and a non-pixel region; a gate electrode arranged in the non-pixel region of the substrate; a first insulating layer arranged on the substrate having the gate electrode formed thereon, and having an open groove on an upper surface of a region opposite to the gate electrode; a semiconductor layer buried in the groove and including a source region, a channel region and a drain region; and an organic thin film layer arranged in the pixel region of the substrate. A common electrode is arranged between the drain region of the semiconductor layer and the organic thin film layer to electrically couple the drain region to the organic thin film layer.
    Type: Application
    Filed: December 19, 2008
    Publication date: October 8, 2009
    Inventors: Hun-Jung Lee, Jae-Kyeong Jeong, Steve Y.G. Mo
  • Publication number: 20090194766
    Abstract: A thin film transistor (TFT) using an oxide semiconductor layer as an active layer, a method of manufacturing the TFT, and a flat panel display (FPD) including the TFT are taught. The TFT includes a gate electrode formed on a substrate, an oxide semiconductor layer electrically insulated from the gate electrode by a gate insulating layer, and the oxide semiconductor layer including a channel region, a source region, and a drain region, and a source electrode and a drain electrode respectively electrically contacting the source region and the drain region. The oxide semiconductor layer is formed of an InZnO or IZO layer (indium zinc oxide layer) including Zr. The carrier density of the IZO layer is controlled to be 1×1013 to 1×1018 #cm?3 by controlling an amount of Zr.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 6, 2009
    Inventors: Jin-Seong Park, Kwang-Suk Kim, Jong-Han Jeong, Jae-Kyeong Jeong, Steve Y.G. Mo
  • Publication number: 20090195148
    Abstract: An organic light emitting display including: a driving thin film transistor (TFT) including a semiconductor layer on a substrate including a source electrode, a drain electrode, and an N-type oxide semiconductor; at least one insulating layer formed on the driving TFT; a pixel defining layer for defining a pixel region on the insulating layer; a cathode electrode coupled to a drain electrode of the driving TFT and patterned to correspond to the pixel region; an electron injection layer arranged over the entire surfaces of the pixel defining layer and the cathode electrode and formed of a material whose band gaps are 3.0 eV to 5.0 eV selected from the group consisting of an oxide, a nitride, a fluoride, and diamond on; an organic light emitting layer formed on the electron injection layer to correspond to the cathode region; and an anode electrode formed on the organic light emitting layer.
    Type: Application
    Filed: November 19, 2008
    Publication date: August 6, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Hun-Jung Lee, Dong-Won Han, Steve Y.G. Mo
  • Publication number: 20090155940
    Abstract: A method of manufacturing a thin film transistor having a compound semiconductor with oxygen as a semiconductor layer and a method of manufacturing an organic light emitting display having the thin film transistor include: forming a gate electrode on an insulating substrate; forming a gate insulating layer on the gate electrode; forming a semiconductor layer including oxygen ions on the gate insulating layer, and including a channel region, a source region, and a drain region; forming a source electrode and a drain electrode to contact the semiconductor layer in the source region and the drain region, respectively; and forming a passivation layer on the semiconductor layer by coating an organic material, wherein a carrier density of the semiconductor layer is maintained in the range of 1E+17 to 1E+18/cm3 to have stable electrical property.
    Type: Application
    Filed: November 7, 2008
    Publication date: June 18, 2009
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hun-Jung Lee, Jae-Kyeong Jeong, Hyun-Soo Shin, Jong-Han Jeong, Jin-Seong Park, Steve Y.G. Mo
  • Patent number: RE46922
    Abstract: An organic light-emitting display is disclosed. In one embodiment, the display includes i) a substrate, ii) a thin film transistor formed on the substrate, and comprising i) a gate electrode, ii) an active layer electrically insulated from the gate electrode, and iii) source and drain electrodes that are electrically connected to the active layer and iii) a first electrode electrically connected to the thin film transistor. The display further includes an intermediate layer formed on the first electrode and comprising an organic emission layer and a second electrode formed on the intermediate layer, wherein the source electrode or the drain electrode has an optical blocking portion extending in the direction of substrate thickness.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: June 26, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Han Jeong, Steve Y.G. Mo, Eun-Hyun Kim, Hyun-Sun Park