Patents by Inventor Dong-Jo Kim

Dong-Jo Kim 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: 20180069129
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 8, 2018
    Inventors: YONG SU LEE, YOON HO KHANG, DONG JO KIM, HYUN JAE NA, SANG HO PARK, SE HWAN YU, CHONG SUP CHANG, DAE HO KIM, JAE NEUNG KIM, MYOUNG GEUN CHA, SANG GAB KIM, YU-GWANG JEONG
  • Patent number: 9837446
    Abstract: A thin film transistor array panel includes: a gate wiring layer disposed on a substrate; an oxide semiconductor layer disposed on the gate wiring layer; and a data wiring layer disposed on the oxide semiconductor layer, in which the data wiring layer includes a main wiring layer including copper and a capping layer disposed on the main wiring layer and including a copper alloy.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: December 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do-Hyun Kim, Yoon Ho Khang, Dong-Hoon Lee, Sang Ho Park, Se Hwan Yu, Cheol Kyu Kim, Yong-Su Lee, Sung Haeng Cho, Chong Sup Chang, Dong Jo Kim, Jung Kyu Lee
  • Patent number: 9768309
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Publication number: 20170154897
    Abstract: A thin film transistor array panel includes: a gate wiring layer disposed on a substrate; an oxide semiconductor layer disposed on the gate wiring layer; and a data wiring layer disposed on the oxide semiconductor layer, in which the data wiring layer includes a main wiring layer including copper and a capping layer disposed on the main wiring layer and including a copper alloy.
    Type: Application
    Filed: February 8, 2017
    Publication date: June 1, 2017
    Inventors: Do-Hyun KIM, Yoon Ho KHANG, Dong-Hoon LEE, Sang Ho PARK, Se Hwan YU, Cheol Kyu KIM, Yong-Su LEE, Sung Haeng CHO, Chong Sup CHANG, Dong Jo KIM, Jung Kyu LEE
  • Patent number: 9666602
    Abstract: A thin film transistor substrate includes the following elements: a base substrate, a data line disposed on the base substrate, a source electrode contacting the data line, a drain electrode spaced from the source electrode, a channel disposed between the source electrode and the drain electrode, a pixel electrode electrically connected to the drain electrode, a gate insulation pattern disposed on the channel, and a gate electrode disposed on the gate insulation pattern.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 30, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Seon Lee, Dong-Jo Kim, Yoon-Ho Khang, Yong-Su Lee, Jong-Chan Lee
  • Patent number: 9589998
    Abstract: A thin film transistor array panel includes: a gate wiring layer disposed on a substrate; an oxide semiconductor layer disposed on the gate wiring layer; and a data wiring layer disposed on the oxide semiconductor layer, in which the data wiring layer includes a main wiring layer including copper and a capping layer disposed on the main wiring layer and including a copper alloy.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: March 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do-Hyun Kim, Yoon Ho Khang, Dong-Hoon Lee, Sang Ho Park, Se Hwan Yu, Cheol Kyu Kim, Yong-Su Lee, Sung Haeng Cho, Chong Sup Chang, Dong Jo Kim, Jung Kyu Lee
  • Publication number: 20160308063
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: YONG SU LEE, YOON HO KHANG, DONG JO KIM, HYUN JAE NA, SANG HO PARK, SE HWAN YU, CHONG SUP CHANG, DAE HO KIM, JAE NEUNG KIM, MYOUNG GEUN CHA, SANG GAB KIM, YU-GWANG JEONG
  • Patent number: 9379252
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 28, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Patent number: 9368515
    Abstract: A thin film transistor array panel may include a channel layer including an oxide semiconductor and formed in a semiconductor layer, a source electrode formed in the semiconductor layer and connected to the channel layer at a first side, a drain electrode formed in the semiconductor layer and connected to the channel layer at an opposing second side, a pixel electrode formed in the semiconductor layer in a same portion of the semiconductor layer as the drain electrode, an insulating layer disposed on the channel layer, a gate line including a gate electrode disposed on the insulating layer, a passivation layer disposed on the source and drain electrodes, the pixel electrode, and the gate line, and a data line disposed on the passivation layer. A width of the channel layer may be substantially equal to a width of the pixel electrode in a direction parallel to the gate line.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Jo Kim, Ji Seon Lee, Jong Chan Lee, Yoon Ho Khang, Sang Ho Park, Yong Su Lee, Jung Kyu Lee
  • Patent number: 9356153
    Abstract: A thin film transistor includes a bottom gate electrode, a top gate electrode and an active pattern. The top gate electrode includes a transparent conductive material and overlaps with the bottom gate electrode. A boundary of the bottom gate electrode and a boundary of the top gate electrode are coincident with each other in a cross-sectional view. The active pattern includes a source portion, a drain portion and a channel portion disposed between the source portion and the drain portion. The channel portion overlaps with the bottom gate electrode and the top gate electrode.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yoon-Ho Khang, Dong-Jo Kim, Su-Hyoung Kang, Yong-Su Lee
  • Publication number: 20160148958
    Abstract: A thin film transistor array panel includes: a gate wiring layer disposed on a substrate; an oxide semiconductor layer disposed on the gate wiring layer; and a data wiring layer disposed on the oxide semiconductor layer, in which the data wiring layer includes a main wiring layer including copper and a capping layer disposed on the main wiring layer and including a copper alloy.
    Type: Application
    Filed: January 29, 2016
    Publication date: May 26, 2016
    Inventors: Do-Hyun KIM, Yoon Ho KHANG, Dong-Hoon LEE, Sang Ho PARK, Se Hwan YU, Cheol Kyu KIM, Yong-Su LEE, Sung Haeng CHO, Chong Sup CHANG, Dong Jo KIM, Jung Kyu LEE
  • Publication number: 20160148983
    Abstract: An OLED display and a method of manufacturing the same are disclosed. In one aspect, the OLED display includes a substrate and a semiconductor layer formed over the substrate, wherein the semiconductor layer includes a channel and a contact region formed on opposing sides of the channel. The display also includes an insulating layer formed over the semiconductor layer and having a contact hole exposing the contact region, and an OLED formed over the insulating layer, wherein the OLED is electrically connected to the contact region through the contact hole, and wherein at least a portion of the contact hole is formed directly above the contact region.
    Type: Application
    Filed: May 8, 2015
    Publication date: May 26, 2016
    Inventors: Myoung Geun Cha, Dong Jo Kim, Yoon Ho Khang, Jong Chan Lee
  • Patent number: 9343583
    Abstract: A thin film transistor, a thin film transistor array panel including the same, and a method of manufacturing the same are provided, wherein the thin film transistor includes a channel region including an oxide semiconductor, a source region and a drain region connected to the channel region and facing each other at both sides with respect to the channel region, an insulating layer positioned on the channel region, and a gate electrode positioned on the insulating layer, wherein an edge boundary of the gate electrode and an edge boundary of the channel region are substantially aligned.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang
  • Patent number: 9318233
    Abstract: The present invention relates to a method for manufacturing a conductive metal thin film, including: preparing a conductive metal coating solution by adding carboxylic acid to a dispersion including a conductive metal particle having a core/shell structure; coating the conductive metal coating solution on a top portion of a substrate, heat-treating it, and removing an metal oxide layer of the surface of the conductive metal particle having the core/shell structure; and forming a thin film of the conductive metal particle from which the metal oxide layer is removed.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 19, 2016
    Assignees: Hanwha Chemical Corporation, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Won Il Son, Sun Jin Park, Eui Duk Kim, Seok Heon Oh, Joo Ho Moon, Kyoo Hee Woo, Dong Jo Kim
  • Patent number: 9281343
    Abstract: A thin film transistor display panel includes: a gate electrode, a source electrode and a drain electrode which are included in a thin film transistor on a substrate; a data line connected to the source electrode; a pixel link member connecting the drain electrode to a pixel electrode; and a gate pad connected to the gate electrode through a gate line and including a first gate subpad, a second gate subpad and a gate pad link member, in which the pixel link member and the gate pad link member are substantially same in thickness.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: March 8, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong-Su Lee, Yoon-Ho Khang, Se-Hwan Yu, Dong-Jo Kim, Min-Jung Lee
  • Patent number: 9252284
    Abstract: A display substrate and a method for manufacturing a display substrate are disclosed. In the method, a gate electrode is formed on a base substrate. An active pattern is formed using an oxide semiconductor. The active pattern partially overlaps the gate electrode. A first insulation layer pattern and a second insulation layer pattern are sequentially formed on the active pattern. The first insulation layer pattern and the second insulation layer pattern overlap the gate electrode. A third insulation layer is formed to cover the active pattern, the first insulation layer pattern and the second insulation layer pattern. Either the first insulation layer pattern or the second insulation layer pattern includes aluminum oxide. Forming the first insulation layer pattern and the second insulation layer pattern includes performing a backside exposure process using the gate electrode as an exposure mask.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Chan Lee, Yoon-Ho Khang, Su-Hyoung Kang, Dong-Jo Kim, Ji-Seon Lee, Myoung-Geun Cha, Deuk-Myung Ji
  • Patent number: 9252226
    Abstract: Provided is a thin film transistor array panel. The thin film transistor array panel according to exemplary embodiments of the present invention includes: a gate wiring layer disposed on a substrate; an oxide semiconductor layer disposed on the gate wiring layer; and a data wiring layer disposed on the oxide semiconductor layer, in which the data wiring layer includes a main wiring layer including copper and a capping layer disposed on the main wiring layer and including a copper alloy.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: February 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do-Hyun Kim, Yoon Ho Khang, Dong-Hoon Lee, Sang Ho Park, Se Hwan Yu, Cheol Kyu Kim, Yong-Su Lee, Sung Haeng Cho, Chong Sup Chang, Dong Jo Kim, Jung Kyu Lee
  • Patent number: 9244320
    Abstract: A liquid crystal display includes a transparent insulation substrate, a first polarizer, and a semiconductor layer, a thin film transistor, and a backlight unit. The first polarizer is disposed on the transparent insulation substrate. The first polarizer includes a light blocking film and metal wires. The semiconductor layer, disposed on the light blocking film, has a perimeter aligned with a perimeter of the light blocking film. The thin film transistor, disposed on the semiconductor layer, includes a source region and a drain region disposed in the semiconductor layer. The backlight unit, disposed under the transparent insulation substrate, provides light to the transparent insulation substrate. The blocking film reflects substantially all of the light. Gaps are disposed between the metal wires.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Hwan Jang, Sang Ho Park, Dong Jo Kim, Jung Gun Nam, Dae-Young Lee, Gug Rae Jo
  • Patent number: 9219085
    Abstract: A thin film transistor array panel and a manufacturing method capable of forming an insulating layer made of different materials for a portion contacting an oxide semiconductor and a second portion without an additional process. Source and drain electrodes of the thin film transistor each include a lower layer and an upper layer. A first passivation layer contacts the lower layer of the source and drain electrodes but does not contact the upper layer of the source and drain electrodes, and a second passivation layer is disposed on the upper layer of the source and drain electrodes. The first passivation layer may be made of silicon oxide, and the second passivation may be made of silicon nitride.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: December 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su-Hyoung Kang, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na
  • Publication number: 20150361924
    Abstract: The present invention relates to a regulator having an electronic valve installed therein. The A regulator having an electronic valve installed therein, the regulator including: a first pressure reducing part connected to an inlet port; and a second pressure reducing part connected to the first pressure reducing part, wherein the second pressure reducing part includes: a pressure reducing chamber into which fuel is introduced from the first pressure reducing part; an orifice formed in the pressure reducing chamber; a valve shaft for opening and closing the orifice; a diaphragm for moving the valve shaft by use of an input pressure and an output pressure; and a spring for resiliently supporting the diaphragm, wherein an auxiliary conduit is formed to interconnect the pressure reducing chamber and an upper space of the diaphragm, and an electronic valve for controlling the pressure of an outlet port is installed on the auxiliary conduit.
    Type: Application
    Filed: August 27, 2015
    Publication date: December 17, 2015
    Inventors: Dong-jo Kim, Jae-hwang Jang, Hyun-chul Lee