Patents by Inventor Yu-Gwang Jeong

Yu-Gwang Jeong 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: 20170317104
    Abstract: A transistor array panel is manufactured by a method that reduces or obviates the need for highly selective etching agents or complex processes requiring multiple photomasks to create contact holes. The panel includes: a substrate; a buffer layer positioned on the substrate; a semiconductor layer positioned on the buffer layer; an intermediate insulating layer positioned on the semiconductor layer; and an upper conductive layer positioned on the intermediate insulating layer, wherein the semiconductor layer includes a first contact hole, the intermediate insulating layer includes a second contact hole positioned in an overlapping relationship with the first contact hole, and the upper conductive layer is in contact with a side surface of the semiconductor layer in the first contact hole.
    Type: Application
    Filed: December 15, 2016
    Publication date: November 2, 2017
    Inventors: Yu-Gwang JEONG, Hyun Min CHO, Su Bin BAE, Shin II CHOI, Sang Gab KIM
  • Publication number: 20170278977
    Abstract: A thin film transistor array panel includes a substrate; a data line disposed on the substrate; a buffer layer disposed on the substrate and spaced apart from the data line in a plan view; a thin film transistor disposed on the buffer layer, the thin film transistor including an oxide semiconductor layer; and a pixel electrode connected to the thin film transistor.
    Type: Application
    Filed: September 21, 2016
    Publication date: September 28, 2017
    Inventors: Yu-Gwang JEONG, Hyun Min CHO, Su Bin BAE, Shin Il CHOI
  • Publication number: 20170278867
    Abstract: A display device may include a substrate, an active pattern layer, a gate insulating layer, a first metal pattern layer, an interlayer insulating layer, a second metal pattern layer, and a passivation film. The active pattern layer may be disposed on the substrate. The gate insulating layer may be disposed on the active pattern layer. The first metal pattern layer may be disposed on the gate insulating layer. The interlayer insulating layer may be disposed on the first metal pattern layer. The second metal pattern layer may be disposed on the interlayer insulating layer. The passivation film may be disposed on the side wall of the second metal pattern layer.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 28, 2017
    Inventors: Yu Gwang JEONG, Su Bin BAE, Hyun Min CHO, Sang Gab KIM
  • 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: 20170200747
    Abstract: A TFT array panel of a display device includes a first substrate, a first electrode disposed on the first substrate, a first insulating layer including a first hole, the first insulating layer disposed on the first electrode, a second insulating layer disposed on the first insulating layer and including a second hole corresponding to the first hole, and a capping layer including a first inner portion, the capping layer disposed on an inner lateral surface forming the second hole, where an end portion of the first inner portion disposed in the second hole is separated from the first electrode.
    Type: Application
    Filed: December 28, 2016
    Publication date: July 13, 2017
    Inventors: Tae An Seo, Su Bin Bae, Yu-Gwang Jeong, Hyun Min Cho, Shin Il Choi, Jin Hwan Choi
  • Patent number: 9704896
    Abstract: A manufacturing method includes forming a gate member and a common electrode line on a substrate. A gate insulating layer is formed on the gate member and the common electrode line. A semiconductor member and a data member are formed on the gate insulating layer. A first passivation layer is formed on the semiconductor member and the data member. A plurality of color filters is formed on the first passivation layer. A conductor layer and a second passivation layer are formed on the plurality of color filters. A first contact hole exposes a common electrode. A second contact hole exposes the drain electrode. The first and second contact holes are formed by a photolithography process. A pixel electrode connected to the drain electrode is formed through the first contact hole. A connecting member connected to the common electrode line and the common electrode is formed through the second contact hole.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Duk-Sung Kim, Shin Il Choi, Su Bin Bae, Yu-Gwang Jeong
  • Publication number: 20170168608
    Abstract: A touch screen panel includes: a first touch electrode disposed on a substrate and extending in a first direction, the first touch electrode including first mesh patterns formed of crossing metal wirings including fine patterns; and a second touch electrode disposed on the substrate and extending in a second direction crossing the first direction, the second touch electrode including second mesh patterns formed of crossing of metal wirings including fine patterns.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 15, 2017
    Inventors: SangGab KIM, Ji Hun KIM, Yu-Gwang JEONG
  • Patent number: 9651810
    Abstract: A display panel includes a first substrate and a second substrate facing the first substrate. The first and substrate includes a plurality of pixel areas and a non-pixel area disposed adjacent to the pixel areas. The display panel further includes a plurality of signal lines disposed on the second substrate. The display panel further includes a color filter disposed on the first substrate or the second substrate. The display panel further includes an inorganic layer disposed on the color filter layer, an organic layer disposed on the inorganic layer, and a conductive layer disposed on the organic layer.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: HongKee Chin, Yunjong Yeo, Yui-Ku Lee, Yu-Gwang Jeong, Jin-Young Choi, Sanggab Kim
  • Patent number: 9640566
    Abstract: A thin film transistor array panel includes a substrate, gate lines, each including a gate pad, a gate insulating layer, data lines, each including a data pad connected to a source and drain electrode, a first passivation layer disposed on the data lines and the drain electrode, a first electric field generating electrode, a second passivation layer disposed on the first electric field generating electrode, and a second electric field generating electrode. The gate insulating layer and the first and second passivation layers include a first contact hole exposing a part of the gate pad, the first and second passivation layers include a second contact hole exposing a part of the data pad, and at least one of the first and second contact holes have a positive taper structure having a wider area at an upper side than at a lower side.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: May 2, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Young Park, Yu-Gwang Jeong, Sang Gab Kim, Joon Geol Lee
  • Patent number: 9599869
    Abstract: A display apparatus includes a backlight assembly which generates a light and a display panel which receives the light to display an image, the display panel including a first substrate, a second substrate which faces the first substrate and is disposed closer to the backlight assembly than the first substrate, a gate line disposed on the first substrate, a data line disposed on the gate line and insulated from the gate line, a thin film transistor disposed on the first substrate and electrically connected to the gate line and the data line, and a reflection preventing layer disposed between the first substrate and the gate line to reduce an amount of a reflected light reflected by the gate line.
    Type: Grant
    Filed: December 8, 2013
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joonyong Park, Sanggab Kim, Changoh Jeong, Taeho Kang, Kyungseop Kim, Gwan Ha Kim, Byeong-Beom Kim, Honglong Ning, Sangwon Shin, Sukyoung Yang, Yunjong Yeo, Dongmin Lee, Shin Il Choi, Hyunju Kang, Sangwoo Sohn, Jungha Son, Yu-Gwang Jeong, Gugrae Jo, Jinho Hwang
  • Publication number: 20160320876
    Abstract: A touch sensor includes a touch substrate including a touch sensing area and a non-sensing area outside the touch sensing area, touch electrodes disposed in the touch sensing area and configured to sense a touch, and touch wiring connected to the touch electrodes in the non-sensing area, in which the touch wiring includes a first wiring conductive layer, a second wiring conductive layer disposed on the first wiring conductive layer, and transparent layers disposed at first and second sides of the second wiring conductive layer and on the first wiring conductive layer.
    Type: Application
    Filed: October 28, 2015
    Publication date: November 3, 2016
    Inventors: Jung Ha SON, Jae Neung KIM, Yong-Hwan RYU, Yun Jong YEO, Joo Hyung LEE, Yu-Gwang JEONG
  • Publication number: 20160322399
    Abstract: A manufacturing method includes forming a gate member and a common electrode line on a substrate. A gate insulating layer is formed on the gate member and the common electrode line. A semiconductor member and a data member are formed on the gate insulating layer. A first passivation layer is formed on the semiconductor member and the data member. A plurality of color filters is formed on the first passivation layer. A conductor layer and a second passivation layer are formed on the plurality of color filters. A first contact hole exposes a common electrode. A second contact hole exposes the drain electrode. The first and second contact holes are formed by a photolithography process. A pixel electrode connected to the drain electrode is formed through the first contact hole. A connecting member connected to the common electrode line and the common electrode is formed through the second contact hole.
    Type: Application
    Filed: January 22, 2016
    Publication date: November 3, 2016
    Inventors: DUK-SUNG KIM, SHIN IL CHOI, SU BIN BAE, YU-GWANG JEONG
  • Patent number: 9484362
    Abstract: A display substrate includes an active pattern, a gate electrode, a first insulation layer and a pixel electrode. The active pattern is disposed on a base substrate. The active pattern includes a metal oxide semiconductor. The gate electrode overlaps the active pattern. The first insulation layer covers the gate electrode and the active pattern, and a contact hole is defined in the first insulation layer. The pixel electrode is electrically connected to the active pattern via the contact hole penetrating the first insulation layer. A first angle defined by a bottom surface of the first insulation layer and a sidewall of the first insulation layer exposed by the contact hole is between about 30° and about 50°.
    Type: Grant
    Filed: April 27, 2014
    Date of Patent: November 1, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Ho Kim, Hyun-Jae Na, Jae-Neung Kim, Yu-Gwang Jeong, Myoung-Geun Cha, Sang-Gab Kim
  • 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: 9443879
    Abstract: A display substrate includes a base substrate, a common line on the base substrate, a first insulation layer covering the common line and having a first insulating material, a conductive pattern on the first insulation layer and including a source electrode and a drain electrode, a second insulation layer covering the drain electrode and the common line, and including a lower second insulation layer having a second insulating material and an upper second insulation layer having the first insulating material, a first electrode electrically connected to the drain electrode through a first contact hole in the second insulation layer, and a second electrode electrically connected to the common line through a second contact hole in the first and second insulation layers. The upper and lower second insulation layers on the drain electrode have a first hole and a second hole respectively that form the first contact hole.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: September 13, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yu-Gwang Jeong, Shin-Il Choi, Su-Bin Bae, Dae-Ho Kim, Sang-Gab Kim, Jae-Neung Kim
  • Patent number: 9443881
    Abstract: A thin film transistor array panel includes a gate line, a gate insulating layer that covers the gate line, a semiconductor layer that is disposed on the gate insulating layer, a data line and drain electrode that are disposed on the semiconductor layer, a passivation layer that covers the data line and drain electrode and has a contact hole that exposes a portion of the drain electrode, and a pixel electrode that is electrically connected to the drain electrode through the contact hole. The data line and drain electrode each have a double layer that includes a lower layer of titanium and an upper layer of copper, and the lower layer is wider than the upper layer, and the lower layer has a region that is exposed. The gate insulating layer may have a step shape.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: September 13, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jean-Ho Song, Shin-Il Choi, Sun-Young Hong, Shi-Yul Kim, Ki-Yeup Lee, Jae-Hyoung Youn, Sung-Ryul Kim, O-Sung Seo, Yang-Ho Bae, Jong-Hyun Choung, Dong-Ju Yang, Bong-Kyun Kim, Hwa-Yeul Oh, Pil-Soon Hong, Byeong-Beom Kim, Je-Hyeong Park, Yu-Gwang Jeong, Jong-In Kim, Nam-Seok Suh
  • Patent number: 9406630
    Abstract: A contact portion of wiring and a method of manufacturing the same are disclosed. A contact portion of wiring according to an embodiment includes: a substrate; a conductive layer disposed on the substrate; an interlayer insulating layer disposed on the conductive layer and having a contact hole; a metal layer disposed on the conductive layer and filling the contact hole; and a transparent electrode disposed on the interlayer insulating layer and connected to the metal layer, wherein the interlayer insulating layer includes a lower insulating layer and an upper insulating layer disposed on the lower insulating layer, the lower insulating layer is undercut at the contact hole, and the metal layer fills in the portion where the lower insulating layer is undercut.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Han Kim, Ki-Yong Song, Dong-Ju Yang, Hee-Joon Kim, Yeo-Geon Yoon, Sung-Hen Cho, Chang-Hoon Kim, Jae-Hong Kim, Yu-Gwang Jeong, Ki-Yeup Lee, Sang-Gab Kim, Yun-Jong Yeo, Shin-Il Choi, Ji-Young Park
  • 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
  • Publication number: 20160170521
    Abstract: A transparent electrode pattern includes a first electrode including a first lower conductive layer and a first upper conductive layer located on the first lower conductive layer and a second electrode spaced apart from the first electrode and including a second lower conductive layer and a second upper conductive layer positioned on the second lower conductive layer. The first and second lower conductive layers may include a metal nanowire. The first and second upper conductive layers may include a transparent conductive material that is dry-etchable.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 16, 2016
    Inventors: Shin Il CHOI, Jae Neung KIM, Su Bin BAE, Yu-Gwang JEONG
  • Patent number: 9365933
    Abstract: A method of forming a fine pattern includes providing a first metal layer on a base substrate, providing a first passivation layer on the first metal layer, providing a mask pattern on the first passivation layer, providing a partitioning wall pattern having a reverse taper shape by etching the first passivation layer, coating a composition having a block copolymer between the partitioning wall patterns adjacent each other, providing a self-aligned pattern by heating the composition, and providing a metal pattern by etching the first metal layer using the self-aligned pattern as a mask.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 14, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Ha Son, Su-Bin Bae, Yu-Gwang Jeong, Lei Xie, Yun-Jong Yeo, Joo-Hyung Lee