Patents by Inventor Yang-Ho Jung

Yang-Ho Jung 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: 8092981
    Abstract: A negative photoresist composition and a method of manufacturing an array substrate. The negative photoresist composition includes a photocurable composition including an ethylene unsaturated compound containing an ethylene unsaturated bond and a photopolymerization initiator, a thermosetting composition including an alkali-soluble resin crosslinked by heat and an organic solvent. The negative photoresist composition improves stability, photosensitivity, detachability after performing a developing operation and reduces residue to improve the reliability of an organic insulation layer. Furthermore, the negative photoresist composition improves the transmittance of an organic insulation layer and reduces the variation of color coordinates to improve the display quality of a display apparatus.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: January 10, 2012
    Assignees: Samsung Electronics Co., Ltd., Techno Semichem Co., Ltd.
    Inventors: Hoon Kang, Jae-Sung Kim, Yang-Ho Jung, Hi-Kuk Lee, Yasuhiro Kameyama, Yuuji Mizuho, Jong-Cheol Kim, Se-Jin Choi
  • Publication number: 20110254815
    Abstract: A manufacturing method of a thin film transistor array panel includes forming a gate line, forming a gate insulating layer on the gate line, forming a data line including a drain electrode on the gate insulating layer, forming a passivation layer on the gate insulating layer, the data line, and the drain electrode, forming a negative photosensitive organic layer on the passivation layer, heat treating the negative photosensitive organic layer to form an insulating layer including a first portion, and a second portion that is thinner than the first portion, and forming a pixel electrode, a first contact assistant, and a second contact assistant on the insulating layer. The pixel electrode is disposed on the first portion, the first and second contact assistants are disposed on the second portion, and the thickness of the second portion is less than about 1.5 micrometers (?m).
    Type: Application
    Filed: October 22, 2010
    Publication date: October 20, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Sung KIM, Hoon KANG, Yang-Ho JUNG
  • Publication number: 20110177639
    Abstract: A thin film transistor display panel includes gate wiring formed on an insulation substrate and including gate lines, and gate electrodes and gate pads connected to the gate lines; a gate insulation layer covering the gate wiring; a semiconductor pattern formed over the gate insulation layer; data wiring formed over the gate insulation layer or the semiconductor pattern and including source electrodes, drain electrodes, and data pads; a protection layer including a Nega-PR type of organic insulating layer formed all over the semiconductor pattern and the data wiring, wherein the thickness of the Nega-PR type of organic insulating layer in both the gate and data pad regions is smaller than in the other regions; and a pixel electrode connected to the drain electrode. When exposing the Nega-PR type of passivation layer in the pad region during a photolithography process, a photomask having a lattice pattern made of a metal such as Cr that has a line width of less than the resolution of a light exposer is used.
    Type: Application
    Filed: April 26, 2010
    Publication date: July 21, 2011
    Inventors: Hoon KANG, Jin-Ho Ju, Yang-Ho Jung, Jae-Sung Kim
  • Publication number: 20110051059
    Abstract: An organic layer composition and a liquid crystal display including the same are provided. An organic layer composition according to an exemplary embodiment includes a binder formed by copolymerizing compounds included in a first group and a second group, wherein the first group includes an acryl-based compound and the second group includes a compound without a —COO— group.
    Type: Application
    Filed: March 12, 2010
    Publication date: March 3, 2011
    Inventors: Hoon Kang, Jae-Sung Kim, Yang-Ho Jung, Jin-Ho Ju, Doo-Hee Jung, Jung-In Park, Shi-Yul Kim
  • Publication number: 20100133539
    Abstract: Provided is a thin-film transistor (TFT) substrate. The TFT substrate includes: an insulating substrate; a semiconductor pattern which is formed on the insulating substrate, the semiconductor pattern having a top surface and a bottom surface; a source electrode and a drain electrode which are disposed on the top and bottom surfaces of the semiconductor pattern, respectively; a gate electrode which is disposed alongside the semiconductor pattern with a gate insulating film interposed therebetween; a data line which is connected to the source electrode and extends in a first direction; a gate line which is connected to the gate electrode and extends in a second direction; and a pixel electrode which is connected to the drain electrode and is formed in a pixel region.
    Type: Application
    Filed: September 30, 2009
    Publication date: June 3, 2010
    Inventors: Hoon KANG, Yun-Seok Lee, Jae-Sung Kim, Yang-Ho Jung, Young-Je Cho, Cheon-Jae Maeng, Woo-Geun Lee
  • Publication number: 20100127961
    Abstract: A thin film transistor array panel including a substrate, gate lines formed on the substrate and extending in a first direction, data lines formed on the substrate and extending in a second direction, wherein the data lines cross and are insulated from the gate lines, and thin film transistors each with a control terminal, an input terminal, and an output terminal. The control and input terminals of the thin film transistor are connected to the gate and data lines. A barrier rib is formed on the gate lines, the data lines, and the thin film transistors. The barrier rib has the same pattern as the gate lines, the data lines, and the thin film transistors. Color filters fill regions demarcated by the barrier rib. Pixel electrodes are formed on the color filters. The output terminal of the thin film transistor has an opening, and a portion of the barrier rib formed on the output terminal has an output opening. The barrier rib output terminal portion has the same pattern as the output terminal.
    Type: Application
    Filed: August 7, 2009
    Publication date: May 27, 2010
    Inventors: CHUL HUH, Ki-Hun Jeong, Jae-Ho Choi, Yang-Ho Jung, Jin-Seuk Kim, Sang-Hun Lee, Gwan-Soo Kim, Sung-Hoon Yang
  • Publication number: 20100123861
    Abstract: A liquid crystal display includes; a first substrate, a gate line and a data line disposed on the first substrate, a color filter including protrusions and depressions aligned with the data line, the color filter being disposed on the data line, a pixel electrode disposed on the color filter, a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate.
    Type: Application
    Filed: August 25, 2009
    Publication date: May 20, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hwan SHIM, Gug-Rae JO, Sung-Hoon YANG, Kap-Soo YOON, Ki-Hun JEONG, Jae-Ho CHOI, Yang-Ho JUNG
  • Publication number: 20100091228
    Abstract: A liquid crystal display (“LCD”) and a method of fabricating the same are provided. The LCD includes a first insulating substrate, protrusion patterns spaced apart from each other on the first insulating substrate, pixel electrodes disposed on the protrusion patterns and having a cutout between the protrusion patterns, metal patterns disposed on the protrusion patterns and overlapping top surfaces of the protrusion patterns, a second insulating substrate facing the first insulating substrate, and a liquid crystal layer interposed between the first insulating substrate and the second insulating substrate.
    Type: Application
    Filed: September 21, 2009
    Publication date: April 15, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Sung Kim, Yang-Ho Jung, Hoon Kang
  • Publication number: 20100053490
    Abstract: A liquid crystal display includes a first substrate, a gate line and first and second data lines disposed on the first substrate, a first thin film transistor connected to the gate line and the first data line, a second thin film transistor connected to the gate line and the second data line, a color filter disposed on the first substrate, a protrusion disposed on the color filter, a first pixel electrode including a first linear electrode disposed on the protrusion and connected to the first thin film transistor, a second pixel electrode including a second linear electrode disposed on the protrusion and connected to the second thin film transistor, a second substrate disposed facing the first substrate, and blue phase liquid crystal disposed between the first substrate and the second substrate.
    Type: Application
    Filed: July 8, 2009
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon KANG, Yong-Hwan SHIN, Hong-Jo PARK, Jae-Sung KIM, Yang-Ho JUNG
  • Publication number: 20100053507
    Abstract: After increasing the thickness of a gate line and forming a barrier rib that is made of an organic material, a gate insulating layer is formed and then a color filter is formed with an Inkjet method using the barrier rib. By increasing a thickness of the gate line, even if the size of a substrate increases, problems due to signal delay are reduced, and by forming a barrier rib with an organic material, the height of the barrier rib increases, and a taper angle increases and thus a color filter is stably formed.
    Type: Application
    Filed: May 4, 2009
    Publication date: March 4, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jean-Ho SONG, Yang-Ho JUNG, Hoon KANG, Jae-Sung KIM, Jae-Hyoung YOUN, Jong-In KIM, Sang-Soo KIM, Shi-Yul KIM
  • Publication number: 20090237581
    Abstract: In accordance with one or more embodiments of the present disclosure, a liquid crystal display includes a first substrate, a plurality of first signal lines formed on the first substrate, a plurality of second signal lines intersecting the first signal lines, a plurality of thin film transistors connected to the first signal lines and the second signal lines, an organic insulator formed on the thin film transistors, a plurality of pixel electrodes formed on the organic insulator, a second substrate facing the first substrate, a common electrode formed on the second substrate, a sealant disposed between the first substrate and the second substrate and formed according to the circumference of the second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate and disposed in a region defined by the sealant. The organic insulator includes an opening formed at a position overlapping the sealant.
    Type: Application
    Filed: November 7, 2008
    Publication date: September 24, 2009
    Inventors: Jae-Sung KIM, Hoon Kang, Yang-Ho Jung, Hi-Kuk Lee
  • Publication number: 20090224259
    Abstract: A display substrate includes a gate wiring, a data wiring, a switching element, an organic layer, and a pixel electrode. The gate wiring contacts a first transparent conductive layer formed on the gate wiring. The data wiring crosses the gate wiring. The data wiring contacts a second transparent conductive layer formed on the data wiring. The switching element is connected to the gate and data wirings. The organic layer is formed on a base substrate having the switching element formed thereon. The organic layer has first and second trenches corresponding to the first and second transparent conductive layers, respectively. The pixel electrode is formed in a pixel area of the organic layer.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yang-Ho JUNG, Hoon KANG, Jae-Sung KIM, Hi-Kuk LEE
  • Publication number: 20090176337
    Abstract: A negative photoresist composition and a method of manufacturing an array substrate. The negative photoresist composition includes a photocurable composition including an ethylene unsaturated compound containing an ethylene unsaturated bond and a photopolymerization initiator, a thermosetting composition including an alkali-soluble resin crosslinked by heat and an organic solvent. The negative photoresist composition improves stability, photosensitivity, detachability after performing a developing operation and reduces residue to improve the reliability of an organic insulation layer. Furthermore, the negative photoresist composition improves the transmittance of an organic insulation layer and reduces the variation of color coordinates to improve the display quality of a display apparatus.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 9, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., TECHNO SEMICHEM CO., LTD.
    Inventors: Hoon KANG, Jae-Sung KIM, Yang-Ho JUNG, Hi-Kuk LEE, Yasuhiro KAMEYAMA, Yuuji MIZUHO, Jong-Cheol KIM, Se-Jin CHOI
  • Publication number: 20090030103
    Abstract: Disclosed is a method of producing a thin film transistor substrate having high light sensitivity, heat-resistance, impact resistance, and a photosensitive composition used by the same, the method including forming data wires on an insulating substrate, forming an organic insulating film on the data wires by applying a photosensitive composition comprising a terpolymer, where the terpolymer is derived from monomers of an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride, or a mixture thereof, an unsaturated epoxy group-containing compound, and an olefinic compound.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 29, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hoon KANG, Jae-sung Kim, Yang-ho Jung, Hi-kuk Lee
  • Publication number: 20070176314
    Abstract: A method of manufacturing a display device according to an exemplary embodiment of the present invention includes applying an organic material onto a substrate that is mounted on a supporting plate, contacting a surface of the mold on which a predetermined pattern is formed with the organic material, disposing the supporting plate an at angle, and pressing the mold while rotating the pressure roller. Therefore, the apparatus and method for manufacturing a display device according to the embodiment of the present invention have advantages that bubbles generated from the organic material are removed by using an inclined supporting plate and rotating the pressure roller in a direction opposite to the moving direction, thereby suppressing the formation of the bubbles.
    Type: Application
    Filed: October 2, 2006
    Publication date: August 2, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yang-Ho Jung, Kyu-Young Kim