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).

  • Publication number: 20130256652
    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: July 19, 2012
    Publication date: October 3, 2013
    Inventors: Yong Su LEE, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang
  • Publication number: 20130105826
    Abstract: A display substrate includes a base substrate, a switching element, a gate line, a data line and a pixel electrode. Each of the gate line and the data line includes a first metal layer, and a second metal layer directly on the first metal layer. The switching element is on the base substrate, and includes a control electrode and an input electrode or an output electrode. The control electrode includes the first metal layer and excludes the second metal layer, and extends from the gate line. The input electrode or the output electrode includes a second metal layer and excludes the first metal layer. The input electrode extends from the data line. The pixel electrode is electrically connected to the output electrode of the switching element through a first contact hole, and includes a transparent conductive layer.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 2, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Kyu Lee, Yoon-Ho Khang, Se-Hwan Yu, Cheol-Kyu Kim, Yong-Su Lee, Chong-Sup Chang, Sang-Ho Park, Su-Hyoung Kang, Hyun-Jae Na, Young-Ki Shin
  • Publication number: 20130092942
    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: Application
    Filed: July 27, 2012
    Publication date: April 18, 2013
    Inventors: SANG HO PARK, Yoon Ho Khang, Se Hwan Yu, Yong Su Lee, Chong Sup Chang, Myoung Geun Cha, Hyun Jae Na
  • Publication number: 20130093985
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a substrate. A thin film transistor is disposed on the substrate. A passivation layer is disposed on the thin film transistor. A pixel electrode is disposed on the passivation layer. A minute space layer is disposed on the pixel electrode and includes a liquid crystal injection hole. A first overcoat is disposed on the minute space layer. A common electrode is disposed on the first overcoat. A capping layer covers the liquid crystal injection hole. The capping layer includes graphene.
    Type: Application
    Filed: March 1, 2012
    Publication date: April 18, 2013
    Inventors: SU-HYOUNG KANG, Yoon Ho Khang, Se Hwan Yu, Yong Su Lee, Chong Sup Chang
  • Publication number: 20130037829
    Abstract: A display substrate includes a base substrate; a first metal pattern disposed on the base substrate and comprising a first signal line and a first electrode electrically connected to the first signal line; and a buffer pattern disposed at a corner between a sidewall surface of the first metal pattern and the base substrate.
    Type: Application
    Filed: March 12, 2012
    Publication date: February 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chong-Sup CHANG, Yoon-Ho KHANG, Se-Hwan YU, Yong-Su LEE, Min KANG, Myoung-Geun CHA, Ji-Seon LEE
  • Publication number: 20130032794
    Abstract: Provided is a thin film transistor and thin film transistor panel array. The thin film transistor includes: a substrate; a gate electrode disposed on the substrate; a semiconductor layer disposed on the substrate and partially overlapping with the gate electrode; a source electrode and a drain electrode spaced apart from each other with respect to a channel region of the semiconductor layer; an insulating layer disposed between the gate electrode and the semiconductor layer; and a barrier layer disposed between the semiconductor layer and the source electrode and between the semiconductor layer and the drain electrode, in which the barrier layer comprises graphene. An ohmic contact is provided based on the type of material used for the semiconductor layer.
    Type: Application
    Filed: February 6, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Su LEE, Yoon Ho KHANG, Se Hwan YU, Chong Sup CHANG
  • Publication number: 20130032793
    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: Application
    Filed: February 6, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS 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: 20130027627
    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: Application
    Filed: July 9, 2012
    Publication date: January 31, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Su-Hyoung KANG, Yoonho Khang, Sangho Park, Jungkyu Lee, Chong Sup Chang
  • Publication number: 20120248442
    Abstract: A method is provided for forming a fine pattern. In the method, a first fine pattern and a first metal pattern are formed by respectively patterning a first fine pattern layer on a base substrate and a first metal layer on the first fine pattern layer. A second fine pattern layer and a second metal layer are sequentially formed over the first fine pattern and the first metal pattern. The second metal layer is patterned, so that a second metal pattern between adjacent portions of the first fine pattern. The second fine pattern layer is patterned using the second metal pattern as a mask, so that a second fine pattern is formed between adjacent portions of the first fine pattern.
    Type: Application
    Filed: January 12, 2012
    Publication date: October 4, 2012
    Inventors: Se-Hwan YU, Chong-Sup Chang, Sang-Ho Park, Ji-Seon Lee
  • Publication number: 20120161131
    Abstract: A thin-film transistor (“TFT”) substrate includes a metal wiring including copper or a copper alloy on a substrate, an inorganic layer on an upper surface and side surfaces of the metal wiring to surround the metal wiring, the inorganic layer in direct contact with the metal wiring, and a planarization layer on the inorganic layer and in direct contact with the inorganic layer.
    Type: Application
    Filed: August 24, 2011
    Publication date: June 28, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min KANG, Chong-Sup CHANG, Hyeong-Suk YOO, Jin-Ho JU
  • Publication number: 20120138920
    Abstract: A thin film transistor array panel is provided that includes: a gate electrode that is disposed on an insulating substrate; a gate insulating layer that is disposed on the gate electrode; an oxide semiconductor that is disposed on the gate insulating layer; a blocking layer that is disposed on the oxide semiconductor; a source electrode and a drain electrode that are disposed on the blocking layer; a passivation layer that is disposed on the source electrode and drain electrode; and a pixel electrode that is disposed on the passivation layer. The blocking layer includes a first portion that is covered by the source electrode and drain electrode and a second portion that is not covered by the source electrode and drain electrode, and the first portion and the second portion include different materials.
    Type: Application
    Filed: May 2, 2011
    Publication date: June 7, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon Ho KHANG, Se Hwan YU, Chong Sup CHANG, Sang Ho PARK, Su-Hyoung KANG
  • Publication number: 20120126233
    Abstract: Provided is a thin film transistor array panel. A thin film transistor array panel according to an exemplary embodiment includes a gate wire having a first region where the gate line is disposed, and a second region where the gate electrode is disposed, and a thickness of the gate wire formed in the first region is greater than the thickness of the gate wire that is formed in the second region.
    Type: Application
    Filed: April 1, 2011
    Publication date: May 24, 2012
    Inventors: Chong Sup CHANG, Yoon Ho KHANG, Hyung Jun KIM, Se Hwan YU, Sang Ho PARK, Su-Hyoung KANG, Myoung Geun CHA, Young Ki SHIN, Ji Seon LEE
  • Publication number: 20120086678
    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: Application
    Filed: June 17, 2011
    Publication date: April 12, 2012
    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