Patents by Inventor Chang-Oh Jeong

Chang-Oh 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: 20120147312
    Abstract: Provided are a display device and a method of manufacturing the same. The display device includes: a substrate divided into a display area and a peripheral area; a first metal wiring formed on the display area of the substrate; and a second metal wiring formed on the peripheral area of the substrate and including a gate driver. The first metal wiring is thicker than the second metal wiring.
    Type: Application
    Filed: November 2, 2011
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Jun KIM, Chang-Oh JEONG
  • Patent number: 8199297
    Abstract: A display panel includes; a lower gate line, a lower data line disposed substantially perpendicular to the lower gate line, a thin film transistor (“TFT”) connected to the lower gate line and the lower data line, an insulating layer disposed on the lower gate line, the lower data line, and the TFT and having a plurality of trenches exposing the lower gate line and the lower data line, an upper gate line disposed in the trench on the lower gate line, an upper data line disposed in the trench on the lower data line, and a pixel electrode connected to the TFT.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo-Ae Youn, Yang-Ho Bae, Chang-Oh Jeong, Chong-Chul Chai, Pil-Sang Yun, Honglong Ning, Byeong-Beom Kim
  • Patent number: 8198657
    Abstract: A thin film transistor array panel includes an insulating substrate. A gate line is formed on the insulating substrate and has a gate electrode. A gate insulating layer is formed on the gate line. A semiconductor layer is formed on the gate insulating layer and overlaps the gate electrode. Diffusion barriers are formed on the semiconductor layer and contain nitrogen. A data line crosses the gate line and has a source electrode partially contacting the diffusion barriers and a drain electrode partially contacting the diffusion barriers and facing the source electrode. The drain electrode is on the gate electrode. A pixel electrode is electrically connected to the drain electrode.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hoon Lee, Do-Hyun Kim, Chang-Oh Jeong, O-Sung Seo, Xin-Xing Li
  • Publication number: 20120112346
    Abstract: Provided are a thin-film transistor (TFT) substrate and a method of manufacturing the same. The method includes: forming a passivation film by forming an insulating film on a substrate; forming a photoresist pattern by forming a photoresist film on the passivation film, exposing the photoresist film to light, and developing the photoresist film; performing a first dry-etching by dry-etching the passivation film using the photoresist pattern as an etch mask; performing a baking to reduce a size of the photoresist pattern; performing a second dry-etching to form a contact hole by dry-etching the passivation film again using the photoresist pattern as a mask; removing the photoresist pattern; and forming a pixel electrode of a carbon composition that includes carbon nanotubes and/or graphene on a top surface of the passivation film.
    Type: Application
    Filed: July 28, 2011
    Publication date: May 10, 2012
    Inventors: Hong Long NING, Chang-Oh Jeong, Ji-Young Park, Sang-Gab Kim, Sung-Haeng Cho, Yeon-Hong Kim, Jin-Su Byun
  • Patent number: 8173492
    Abstract: Provided are a wire structure, a method of forming a wire, a thin film transistor (TFT) substrate, and a method of manufacturing the TFT substrate. The wire structure includes a barrier layer disposed on a lower structure, a copper conductive layer comprising copper or copper alloy disposed on the barrier layer, an intermediate layer comprising copper nitride disposed on the copper conductive layer, and a capping layer disposed on the intermediate layer.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Patent number: 8158499
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate, and a method for fabricating a TFT substrate.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Publication number: 20120052638
    Abstract: A method of fabricating a thin-film transistor (TFT) substrate includes forming a gate electrode on a substrate; forming an insulating film on the gate electrode; forming an amorphous semiconductor pattern on the insulating film; and forming a source electrode separated from a drain electrode on the amorphous semiconductor pattern; forming a light-concentrating layer, which includes a protrusion, on the amorphous semiconductor pattern, the source electrode, and the drain electrode; and crystallizing at least part of the amorphous semiconductor pattern by irradiating light to the protrusion of the light-concentrating layer.
    Type: Application
    Filed: July 27, 2011
    Publication date: March 1, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Jun KIM, Chang-Oh JEONG, Il-Yong YOON
  • Publication number: 20120043545
    Abstract: A thin film transistor display panel includes a substrate, a gate wire on the substrate and including a gate line and a gate electrode; a gate insulating layer on the gate wire; a semiconductor layer on the gate insulating layer; a data wire including a source electrode on the semiconductor layer, a drain electrode opposing the source electrode with respect to the gate electrode, and a data line; a passivation layer on the data wire having a contact hole exposing the drain electrode; and a pixel electrode on the passivation layer and connected to the drain electrode through the contact hole. The gate wire has a first region and second region where the gate line and the gate electrode are positioned, respectively. The thickness of the gate wire in the first region is greater than the thickness of the gate wire in the second region.
    Type: Application
    Filed: January 20, 2011
    Publication date: February 23, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Jun KIM, Chang-Oh JEONG, Jae-Hong KIM
  • Publication number: 20110309510
    Abstract: An array substrate includes a switching element, a signal transmission line, a passivation layer and a pixel electrode. The switching element is disposed on an insulating substrate. The signal transmission line is connected to the switching element and includes a barrier layer, a conductive line, and a copper nitride layer. The barrier layer is disposed on the insulating substrate. The conductive line is disposed on the barrier layer and includes copper or copper alloy. The copper nitride layer covers the conductive line. The passivation layer covers the switching element and the signal transmission line and has a contact hole through which a drain electrode of the switching element is partially exposed. The pixel electrode is disposed on the insulating substrate, and is connected to the drain electrode of the switching element through the contact hole.
    Type: Application
    Filed: August 31, 2011
    Publication date: December 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je-Hun LEE, Do-Hyun KIM, Eun-Guk LEE, Chang-Oh JEONG
  • Patent number: 8077268
    Abstract: A thin film transistor array substrate comprising a base substrate, a first wire on the base substrate, a first insulating layer on the base substrate to cover the first wire, a semiconductor layer on the first insulating layer, a second insulating layer on the first insulating layer on which the semiconductor layer is formed, and a second wire on the second insulating layer on the second insulating layer is provided, and a portion of the second wire makes contact with the semiconductor layer through the contact hole.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: December 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Guk Lee, Chang-Oh Jeong, Je-Hun Lee, Do-Hyun Kim, Soon-Kwon Lim
  • Publication number: 20110285951
    Abstract: A carbon nanotube (“CNT”) composition includes CNTs, a dispersing agent containing a reactive functional group, and at least one kind of dispersion medium. A CNT layer structure includes a substrate and a CNT layer disposed on the substrate, the CNT layer including the CNT composition including the CNTs arranged in a network-shape, and an organic material adsorbed to the CNTs and chemically bonded to the substrate. A liquid crystal display device includes the CNT layer structure. A method of manufacturing the CNT layer structure uses the CNT composition. A method of manufacturing the liquid crystal display device includes forming a pixel electrode on a passivation layer, by using the method of manufacturing the CNT layer structure.
    Type: Application
    Filed: October 4, 2010
    Publication date: November 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seon-mi YOON, Honglong NING, Chang-oh JEONG, Jae-young CHOI, Won-mook CHOI, Hyeon-jin SHIN
  • Publication number: 20110284857
    Abstract: A thin film transistor array panel is provided, which includes a substrate, a plurality of gate line formed on the substrate, a plurality of common electrodes having a transparent conductive layer on the substrate, a gate insulating layer covering the gate lines and the common electrodes, a plurality of semiconductor layers formed on the gate insulating layer, a plurality of data lines including a plurality of source electrodes and formed on the semiconductor layer and the gate insulating layer, a plurality of drain electrodes formed on the semiconductor layer and the gate insulating layer, and a plurality of pixel electrodes overlapping the common electrodes and connected to the drain electrodes.
    Type: Application
    Filed: August 5, 2011
    Publication date: November 24, 2011
    Inventors: Je-Hun LEE, Sung-Jin Kim, Hee-Joon Kim, Chang-Oh Jeong
  • Patent number: 8058114
    Abstract: A gate line includes a first seed layer formed on a base substrate and a first metal layer formed on the first seed layer. A first insulation layer is formed on the base substrate. A second insulation layer is formed on the base substrate. Here, a line trench is formed through the second insulation layer in a direction crossing the gate line. A data line includes a second seed layer formed below the line trench and a second metal layer formed in the line trench. A pixel electrode is formed in a pixel area of the base substrate. Therefore, a trench of a predetermined depth is formed using an insulation layer and a metal layer is formed through a plating method, so that a metal line having a sufficient thickness may be formed.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: November 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Soo Kim, Hong-Long Ning, Bong-Kyun Kim, Hong-Sick Park, Shi-Yul Kim, Chang-Oh Jeong, Sang-Gab Kim, Jae-Hyoung Youn, Woo-Geun Lee, Yang-Ho Bae, Pil-Sang Yun, Jong-Hyun Choung, Sun-Young Hong, Ki-Won Kim, Byeong-Jin Lee, Young-Wook Lee, Jong-In Kim, Byeong-Beom Kim, Nam-Seok Suh
  • Patent number: 8044398
    Abstract: A display substrate includes an insulating substrate, a thin-film transistor (TFT), a pixel electrode, a signal line and a pad part. The insulating substrate has a display region and a peripheral region surrounding the display region. The TFT is in the display region of the insulating substrate. The pixel electrode is in the display region of the insulating substrate and electrically connected to the TFT. The signal line is on the insulating substrate and extends from the peripheral region toward the display region. The pad part is in the peripheral region and electrically connects to the signal line. The pad part is formed in a trench of the insulating substrate and includes a region that extends into the insulating substrate. Therefore, the signal line may be securely attached to the insulating substrate.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-Long Ning, Chang-Oh Jeong, Je-Hun Lee, Yang-Ho Bae, Pil-Sang Yun, Hong-Sick Park, Joo-Ae Youn, Byeong-Beom Kim, Byeong-Jin Lee
  • Patent number: 8035110
    Abstract: A thin-film transistor (TFT) substrate has improved electrical properties and reduced appearance defects and a method of fabricating the TFT substrate, are provided. The TFT substrate includes: gate wiring which is formed on a surface of an insulating substrate; oxide active layer patterns which are formed on the gate wiring and include an oxide of a first material; buffer layer patterns which are disposed on the oxide active layer patterns to directly contact the oxide active layer patterns and include a second material; and data wiring which is formed on the buffer layer patterns to insulatedly cross the gate wiring, wherein a Gibbs free energy of the oxide of the first material is lower than a Gibbs free energy of an oxide of the second material.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do-Hyun Kim, Pil-Sang Yun, Ki-Won Kim, Dong-Hoon Lee, Chang-Oh Jeong
  • Patent number: 7998786
    Abstract: Multi-layered wiring for a larger flat panel display is formed by depositing molybdenum on a substrate in presence of a precursor gas containing at least one oxygen, nitrogen and carbon to form a molybdenum layer. An aluminum layer is deposited on the molybdenum layer. Another metal layer may be formed on the aluminum layer. The molybdenum layer has a face-centered cubic (FCC) lattice structure with a preferred orientation of (111).
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: August 16, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Jae-Kyeong Lee, Chang-Oh Jeong, Beom-Seok Cho
  • Publication number: 20110169060
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate and a method for fabricating a TFT substrate. The wire structure includes a barrier layer formed on a substrate and including a copper layer and a copper solid solution layer.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Inventors: Je-Hun LEE, Chang-Oh Jeong, Eun-Guk Lee, Do-Hyun Kim
  • Patent number: 7968385
    Abstract: A thin film transistor panel includes; an insulating substrate, a gate line including a gate electrode disposed on the insulating substrate, a gate insulating layer disposed on the gate electrode, a semiconductor layer disposed on the gate insulating layer, the semiconductor layer including a sidewall, a data line including a source electrode disposed on the semiconductor layer, a drain electrode disposed substantially opposite to and spaced apart from the source electrode, a first protective film disposed on the data line, the first protective film including a sidewall, a second protective film disposed on the first protective film and including a sidewall, and a pixel electrode electrically connected to the drain electrode, wherein the sidewall of the second protective film is disposed inside an area where the sidewall of the first protective film is disposed, and the source electrode and the drain electrode cover the sidewall of the semiconductor layer.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: June 28, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Oh Jeong, Dong-Hoon Lee
  • Publication number: 20110140111
    Abstract: A thin film transistor array panel is provided and includes a gate line, a gate insulating layer covering the gate line, a semiconductor layer disposed on the gate insulating layer, and a data line and a drain electrode disposed on the semiconductor layer. The data line and the drain electrode have a dual-layered structure including a lower layer and an upper layer with the lower layer having a first portion protruded outside the upper layer and the semiconductor layer having a second portion protruded outside the edge of the lower layer.
    Type: Application
    Filed: August 20, 2010
    Publication date: June 16, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Chang-Oh JEONG, Woo-Sung SOHN, Dong-Gyu KIM, Shi-Yul KIM, Ki-Yeup LEE, Jean-Ho SONG
  • Patent number: RE42670
    Abstract: A thin film transistor substrate for a liquid crystal display includes an insulating substrate, and a gate line assembly formed on the substrate. The gate line assembly has a double-layered structure with a lower layer exhibiting good contact characteristics with respect to indium tin oxide, and an upper layer exhibiting low resistance characteristics. A gate insulating layer, a semiconductor layer, a contact layer, and first and second data line layers are sequentially deposited onto the substrate with the gate line assembly. The first and second data line layers are patterned to form a data line assembly, and the contact layer is etched through the pattern of the data line assembly such that the contact layer has the same pattern as the data line assembly. A passivation layer is deposited onto the data line assembly, and a photoresist pattern is formed on the passivation layer by using a mask of different light transmissties mainly at a display area and a peripheral area.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woon-Yong Park, Jong-Soo Yoon, Chang-Oh Jeong