Patents by Inventor Chong Sup CHANG

Chong Sup CHANG 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: 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: 20170261787
    Abstract: A liquid crystal display according to an exemplary embodiment includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected to the thin film transistor; a roof layer overlapping the pixel electrode; and a liquid crystal layer disposed in a plurality of microcavities between the pixel electrode and the roof layer. The roof layer includes two partitions disposed at respective sides of a microcavity selected from the plurality of microcavities and facing each other and a first inlet part and a second inlet part facing each other in a direction crossing a direction in which the two partitions face each other. A distance between the two partitions is shorter in the first inlet part than in a center part of the microcavity, and the distance between the two partitions is shorter in the second inlet part than in the center part of the microcavity.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 14, 2017
    Inventors: Chong Sup CHANG, Bum Soo KAM, Tae Wook KANG, Hoon KANG
  • Publication number: 20170168346
    Abstract: A display device according to an exemplary embodiment includes: a substrate; a thin film transistor provided above the substrate; a pixel electrode connected with the thin film transistor; an insulating layer provided between the thin film transistor and the pixel electrode; a trench provided in a portion of the insulating layer; a light blocking member provided in in the trench; a roof layer provided above the pixel electrode to be separated from the pixel electrode, interposing a plurality of microcavities therebetween; a liquid crystal layer provided in the microcavities; and encapsulation layer covering the microcavities.
    Type: Application
    Filed: June 28, 2016
    Publication date: June 15, 2017
    Inventors: Bum Soo KAM, Hoon KANG, Chong Sup CHANG
  • 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
  • Publication number: 20170097543
    Abstract: A thin film transistor substrate, a display device including the same, and a method of manufacturing a thin film transistor substrate. The thin film transistor substrate includes: a base plate including a first area and a second area; a nano uneven pattern formed on one side of the base plate in the first area; a wire grid pattern formed on the ne side of the base plate in the second area; a gate electrode disposed on and overlapping the wire grid pattern; and one of a source electrode and a drain electrode disposed on the gate electrode and overlapping the wire grid pattern.
    Type: Application
    Filed: March 23, 2016
    Publication date: April 6, 2017
    Inventors: Hoon KANG, Bum Soo KAM, Sung Won DOH, Chong Sup CHANG
  • Publication number: 20170082922
    Abstract: A method for manufacturing a display device includes forming a plurality of light blocking patterns on a first surface of a transparent substrate, wherein a first light blocking pattern of the plurality of light blocking patterns has a different line width than a second light blocking pattern of the plurality of light blocking patterns. An insulating layer is formed on the first surface of the transparent substrate and the light blocking patterns. A conductive layer is formed on the insulating layer. A photo-resist layer is formed on the conductive layer. The photo-resist layer is exposed with ultraviolet rays through a second surface of the transparent substrate, wherein the first and second surfaces of the transparent substrate are opposite to each other. The photo-resist layer is developed. The conductive layer is etched using the photo-resist layer as a mask. The photo-resist layer is removed.
    Type: Application
    Filed: April 26, 2016
    Publication date: March 23, 2017
    Inventors: Hoon KANG, Bum Soo KAM, Se Yoon OH, Chong Sup CHANG
  • Publication number: 20170069843
    Abstract: A method of fabricating a deposition mask, the method including forming a photoresist pattern on a base member, the photoresist pattern having a plurality of inversely tapered photo patterns and a photo opening defined by the photo patterns; forming a mask material layer in the photo opening and on the photo patterns; removing the photo patterns and the mask material layer formed on the photo patterns, leaving the mask material layer formed in the photo opening; and removing the base member.
    Type: Application
    Filed: April 7, 2016
    Publication date: March 9, 2017
    Inventors: Hoon KANG, Bum Soo KAM, Chong Sup CHANG, Woo Seok JEON
  • 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
  • Patent number: 9484420
    Abstract: A display apparatus includes a thin film transistor substrate, a substrate facing the thin film transistor substrate, and a liquid crystal layer. The thin film transistor substrate includes an insulating substrate, a gate electrode disposed on a surface of the insulating substrate, a gate insulating layer covering the gate electrode, a semiconductor layer disposed on the gate insulating layer, a source electrode disposed on the semiconductor layer, and a drain electrode disposed on the semiconductor layer and spaced apart from the source electrode. One of the source electrode and the drain electrode is spaced apart from the gate electrode in a plan view. The gate electrode includes a side surface inclined with respect to the surface of the insulating substrate and is partially overlapped with a portion of the source electrode or the drain electrode in a direction perpendicular to the side surface of the gate electrode.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: November 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su-Hyoung Kang, Yoonho Khang, Sangho Park, Jungkyu Lee, Chong Sup Chang
  • 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
  • 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
  • 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: 9263467
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the present disclosure includes: an insulating substrate; a gate electrode disposed on the insulating substrate; a gate insulating layer disposed on the gate electrode; a semiconductor disposed on the gate insulating layer; a source electrode and a drain electrode disposed on the semiconductor; an ohmic contact layer disposed at an interface between at least one of the source and drain electrodes and the semiconductor. Surface heights of the source and drain electrodes different, while surface heights of the semiconductor and the ohmic contact layer are the same. The ohmic contact layer is made of a silicide of a metal used for the source and drain electrodes.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Sang Ho Park, Yoon Ho Khang, Se Hwan Yu, Yong Su Lee, Chong Sup Chang, Myoung Geun Cha, Hyun Jae Na
  • 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
  • Publication number: 20150214380
    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: Application
    Filed: April 3, 2015
    Publication date: July 30, 2015
    Inventors: YONG SU LEE, YOON HO KHANG, DONG JO KIM, HYUN JAE NA, SANG HO PARK, SE HWAN YU, CHONG SUP CHANG
  • Publication number: 20150194534
    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: March 24, 2015
    Publication date: July 9, 2015
    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: 9057923
    Abstract: A wire is provided on an insulating substrate to have a first thickness in a first area and a second thickness smaller than the first thickness in a second area except for the first area. A display apparatus includes the wire. The wire is formed by forming a first conductive layer and a second conductive layer on the insulating substrate and etching the first and second conductive layers using photoresist layer patterns having different thicknesses.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chong Sup Chang, Yoonho Khang, Changoh Jeong, Sehwan Yu, Sangho Park, Su-Hyoung Kang, Hyungjun Kim, Honglong Ning, Jinho Hwang, Myounggeun Cha, Youngki Shin
  • Patent number: 9034691
    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: August 26, 2014
    Date of Patent: May 19, 2015
    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