Patents by Inventor Hong Suk Yoo

Hong Suk Yoo 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: 9570477
    Abstract: A thin film transistor (“TFT”) array panel includes; an insulation substrate, a TFT disposed on the insulation substrate and including a drain electrode, a passivation layer covering the TFT and including a contact portion disposed therein corresponding to the drain electrode, a partition comprising an organic material disposed on the passivation layer, and including a transverse portion, a longitudinal portion, and a contact portion disposed on the drain electrode, a color filter disposed on the passivation layer and disposed in a region defined by the partition, an organic capping layer disposed on the partition and the color filter, and a pixel electrode disposed on the organic capping layer, and connected to the drain electrode through the contact portion of the passivation layer and the contact portion of the partition, wherein a contact hole is formed in the organic capping layer corresponding to the contact portion of the passivation layer.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: February 14, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Ho Lee, Jang-Soo Kim, Hong-Suk Yoo, Sang-Soo Kim, Shi-Yul Kim, Jae-Hyoung Youn
  • Publication number: 20160181283
    Abstract: A thin film transistor (“TFT”) array panel includes; an insulation substrate, a TFT disposed on the insulation substrate and including a drain electrode, a passivation layer covering the TFT and including a contact portion disposed therein corresponding to the drain electrode, a partition comprising an organic material disposed on the passivation layer, and including a transverse portion, a longitudinal portion, and a contact portion disposed on the drain electrode, a color filter disposed on the passivation layer and disposed in a region defined by the partition, an organic capping layer disposed on the partition and the color filter, and a pixel electrode disposed on the organic capping layer, and connected to the drain electrode through the contact portion of the passivation layer and the contact portion of the partition, wherein a contact hole is formed in the organic capping layer corresponding to the contact portion of the passivation layer.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 23, 2016
    Inventors: Kwang-Ho LEE, Jang-Soo KIM, Hong-Suk YOO, Sang-Soo KIM, Shi-Yul KIM, Jae-Hyoung YOUN
  • Patent number: 9316923
    Abstract: Provided are an exposure apparatus and an exposure method using the same. The exposure apparatus includes: a light source unit configured to emit light; a substrate stage supporting a substrate, the substrate comprising an exposure area and a non-exposure area; and a prism unit disposed between the light source unit and the substrate stage, the prism unit movable so as to transmit the light to the exposure area and to block the light from the non-exposure area.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang-Hoon Kim, Gug-Rae Jo, Hong-Suk Yoo, Bo-Kyoung Ahn
  • Patent number: 9304402
    Abstract: The present invention relates to a method of controlling a light exposure apparatus including an exposure beam generator equipped with a prism or a bend mirror and a vacuum chamber through which light generated in the exposure beam generator passes. The method includes, generating an exposure beam; measuring a deviation of a center of the exposure beam from a reference line in the vacuum chamber; and adjusting the prism or the bend mirror in the exposure beam generator to adjust the center of the exposure beam when the center of the exposure beam is misaligned with the reference line.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tsunemitsu Torigoe, Hong Suk Yoo, Chang Hoon Kim
  • Patent number: 9269729
    Abstract: A thin film transistor (“TFT”) array panel includes; an insulation substrate, a TFT disposed on the insulation substrate and including a drain electrode, a passivation layer covering the TFT and including a contact portion disposed therein corresponding to the drain electrode, a partition comprising an organic material disposed on the passivation layer, and including a transverse portion, a longitudinal portion, and a contact portion disposed on the drain electrode, a color filter disposed on the passivation layer and disposed in a region defined by the partition, an organic capping layer disposed on the partition and the color filter, and a pixel electrode disposed on the organic capping layer, and connected to the drain electrode through the contact portion of the passivation layer and the contact portion of the partition, wherein a contact hole is formed in the organic capping layer corresponding to the contact portion of the passivation layer.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Ho Lee, Jang-Soo Kim, Hong-Suk Yoo, Sang-Soo Kim, Shi-Yul Kim, Jae-Hyoung Youn
  • Publication number: 20150270296
    Abstract: A thin film transistor (“TFT”) array panel includes; an insulation substrate, a TFT disposed on the insulation substrate and including a drain electrode, a passivation layer covering the TFT and including a contact portion disposed therein corresponding to the drain electrode, a partition comprising an organic material disposed on the passivation layer, and including a transverse portion, a longitudinal portion, and a contact portion disposed on the drain electrode, a color filter disposed on the passivation layer and disposed in a region defined by the partition, an organic capping layer disposed on the partition and the color filter, and a pixel electrode disposed on the organic capping layer, and connected to the drain electrode through the contact portion of the passivation layer and the contact portion of the partition, wherein a contact hole is formed in the organic capping layer corresponding to the contact portion of the passivation layer.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 24, 2015
    Inventors: Kwang-Ho LEE, Jang-Soo KIM, Hong-Suk YOO, Sang-Soo KIM, Shi-Yul KIM, Jae-Hyoung YOUN
  • Patent number: 9046727
    Abstract: A thin film transistor (“TFT”) array panel includes; an insulation substrate, a TFT disposed on the insulation substrate and including a drain electrode, a passivation layer covering the TFT and including a contact portion disposed therein corresponding to the drain electrode, a partition comprising an organic material disposed on the passivation layer, and including a transverse portion, a longitudinal portion, and a contact portion disposed on the drain electrode, a color filter disposed on the passivation layer and disposed in a region defined by the partition, an organic capping layer disposed on the partition and the color filter, and a pixel electrode disposed on the organic capping layer, and connected to the drain electrode through the contact portion of the passivation layer and the contact portion of the partition, wherein a contact hole is formed in the organic capping layer corresponding to the contact portion of the passivation layer.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: June 2, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Ho Lee, Jang-Soo Kim, Hong-Suk Yoo, Sang-Soo Kim, Shi-Yul Kim, Jae-Hyoung Youn
  • Patent number: 8893618
    Abstract: A patterning method and a method for manufacturing an LCD device using the same are disclosed. The patterning method includes preparing a printing plate having concave and convex portions; coating a pattern material in the concave portion of the printing plate; rolling a printing roller on the printing plate to print the pattern material of the concave portion on the printing roller; and rolling the printing roller on a substrate to print the pattern material of the printing roller on the substrate.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: November 25, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Suk Yoo, Chul Ho Kim, Jung Jae Lee, Tae Young Oh, Choon Ho Park
  • Patent number: 8879031
    Abstract: Exemplary embodiments of the present invention disclose a liquid crystal display (LCD) and a method of manufacturing the same. The LCD may have a display area and a peripheral area. An organic layer of the peripheral area may be patterned using a half-tone mask, and a protrusion member may be formed in the peripheral area. Accordingly, the thin film transistor array panel and the corresponding substrate may be prevented from being temporary adhered in the peripheral area such that the density of the liquid crystal molecules filled in the peripheral area may be uniformly maintained and the display quality of the liquid crystal display may be improved.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Sook Jeon, Jang-Soo Kim, Hong-Suk Yoo, Yong-Hwan Kim, Hwa-Yeul Oh, Jong-In Kim, Sang-Hee Jang
  • Patent number: 8842258
    Abstract: An exposure apparatus includes a mask, a substrate which passes through a region disposed below the mask while moving in a first direction, a light source unit disposed above the mask, where the light source irradiates light on the substrate through the mask, and at least one blind disposed below the light source unit, where the blind blocks the light irradiated from the light source unit, where a second direction is perpendicular to the first direction in a same plane as the first direction, the blind is a polyhedron having a width, a length and a thickness and is disposed such that a direction of the length is substantially parallel to the second direction, and the blind is rotatable around a rotation axis substantially parallel to the second direction, and where the width is greater than the thickness.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: September 23, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Kyoung Ahn, Hong-Suk Yoo, Chang-Hoon Kim
  • Patent number: 8720337
    Abstract: A printing device system comprises a printing roller that has a blanket adhered to an outer surface thereof. The printing device system further comprises a drying device that dries the blanket of the printing roller.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: May 13, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Suk Yoo, Chul Ho Kim, Jung Jae Lee, Tae Young Oh
  • Patent number: 8648985
    Abstract: The present invention relates to a liquid crystal display. The liquid crystal display has a lower panel including a first pixel area having a first pixel electrode and a first light leakage preventing member, a final pixel area having a second pixel electrode and a second light leakage preventing member, and middle pixel areas disposed between the first pixel area and the final pixel area, each of the middle pixel areas including a first middle pixel electrode and a second middle pixel electrode. Accordingly, light leakage may be effectively prevented at the first pixel area and the final pixel area that are disposed on the edge.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: February 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Kim, Jang-Soo Kim, Hong-Suk Yoo, Seung-Soo Baek, Hwa-Yeul Oh, Jae-Ho Choi, Jong-In Kim, Sang-Hee Jang
  • Publication number: 20140036211
    Abstract: Exemplary embodiments of the present invention disclose a liquid crystal display (LCD) and a method of manufacturing the same. The LCD may have a display area and a peripheral area. An organic layer of the peripheral area may be patterned using a half-tone mask, and a protrusion member may be formed in the peripheral area. Accordingly, the thin film transistor array panel and the corresponding substrate may be prevented from being temporary adhered in the peripheral area such that the density of the liquid crystal molecules filled in the peripheral area may be uniformly maintained and the display quality of the liquid crystal display may be improved.
    Type: Application
    Filed: October 4, 2013
    Publication date: February 6, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kyung-Sook JEON, Jang-Soo KIM, Hong-Suk YOO, Yong-Hwan KIM, Hwa-Yeul OH, Jong-In KIM, Sang-Hee JANG
  • Patent number: 8564748
    Abstract: Exemplary embodiments of the present invention disclose a liquid crystal display (LCD) and a method of manufacturing the same. The LCD may have a display area and a peripheral area. An organic layer of the peripheral area may be patterned using a half-tone mask, and a protrusion member may be formed in the peripheral area. Accordingly, the thin film transistor array panel and the corresponding substrate may be prevented from being temporary adhered in the peripheral area such that the density of the liquid crystal molecules filled in the peripheral area may be uniformly maintained and the display quality of the liquid crystal display may be improved.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Sook Jeon, Jang-Soo Kim, Hong-Suk Yoo, Yong-Hwan Kim, Hwa-Yeul Oh, Jong-In Kim, Sang-Hee Jang
  • Patent number: 8564762
    Abstract: An exposure apparatus includes a light source for providing bursts of photolithographic exposure light, a mask for applying a pattern to the photolithographic exposure light, a variable length blind for blocking parts of an exposure window from receiving the photolithographic exposure light and a blind driver for controllably driving the variable length blind. The blind includes a plurality of movable blocking plates. The blind driver includes a plurality of motors and a motor control unit which are structured to rapidly return one or more of the blocking plates through the exposure window in a time duration between the bursts of photolithographic exposure light so that a return stain is not formed on the substrate. In one embodiment, the substrate is a mother substrate having a plurality of LCD daughter substrates being formed thereon.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Hoon Kim, Bo-Kyoung Ahn, Hong-Suk Yoo
  • Patent number: 8563368
    Abstract: A thin film transistor substrate according to an embodiment of the present invention includes: an insulation substrate; a gate line formed on the insulation substrate; a first interlayer insulating layer formed on the gate line; a data line and a gate electrode formed on the first interlayer insulating layer; a gate insulating layer formed on the data line and gate electrode; a semiconductor formed on the gate insulating layer and overlapping the gate electrode; a second interlayer insulating layer formed on the semiconductor; a first connection formed on the second interlayer insulating layer and electrically connecting the gate line and the gate electrode to each other; a drain electrode connected to the semiconductor; a pixel electrode connected to the drain electrode; and a second connection connecting the data line and the semiconductor to each other.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Wook Lee, Hong-Suk Yoo, Jean-Ho Song, Jae-Hyoung Youn, Woo-Geun Lee, Ki-Won Kim, Jong-In Kim
  • Patent number: 8530139
    Abstract: Disclosed is a solvent for printing which comprises a first solvent selected from the group consisting of acetone, methyl ethyl ketone, methyl acetate, ethyl acetate, methanol and mixtures thereof, and a second solvent selected from the group consisting of propylene glycol monomethyl ether acetate (PGMEA), propylene glycol monomethyl ether (PGME), isopropanol, butyl acetate, ethyl-3-ethoxypropionate and mixtures thereof. Further disclosed are a pattern composition for printing comprising the solvent for printing, and a patterning method using the composition. The use of the solvent for printing enables formation of an accurate pattern.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: September 10, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Suk Yoo, Chul Ho Kim, Jung Jae Lee, Tae Young Oh
  • Patent number: 8460985
    Abstract: A method of manufacturing a semiconductor for a transistor that includes forming a precursor layer by coating a surface of an insulation substrate with a precursor solution for an oxide semiconductor, forming an oxide semiconductor by oxidizing a portion of the precursor layer, and removing a remaining precursor layer except for the oxide semiconductor.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: June 11, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Kyoung Ahn, Seon-Pil Jang, Gug-Rae Jo, Hong-Suk Yoo, Chang-Hoon Kim, Min-Uk Kim, Ju-Han Bae
  • Patent number: 8455870
    Abstract: A thin film transistor array panel includes an insulation substrate. A signal line is formed on the insulation substrate. A thin film transistor is connected to the signal line. A color filter is formed on the substrate. An organic insulator is formed on the color filter and includes a first portion and a second portion having different thicknesses. A light blocking member is formed on the second portion of the organic insulator. A difference between the surface height of the first portion of the organic insulator and the surface height of the second portion of the organic insulator is in the range of about 2.0 ?m to 3.0 ?m.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: June 4, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-In Kim, Jang-Soo Kim, Hong-Suk Yoo, Yong-Hwan Kim, Hwa-Yeul Oh, Jae-Ho Choi, Sang-Hee Jang
  • Publication number: 20130088700
    Abstract: An exposure apparatus includes a light source, a mask and a blind. The light source is disposed over a substrate. The light source cyclically radiates light. The mask is disposed between the light source and the substrate. The mask includes an exposure region and a peripheral region. The peripheral region surrounds the exposure region. A pattern is formed in the exposure region. A plurality of first alignment marks is disposed in the peripheral region. The blind is disposed between the light source and the mask. The blind includes a blocking plate and an adjusting part. The blocking part may move across the substrate. The blocking plate includes second alignment marks disposed at end portions of the blocking plate, opposite to each other. The adjusting part adjusts a position of the blocking plate.
    Type: Application
    Filed: April 3, 2012
    Publication date: April 11, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hoon KIM, Hong-Suk YOO, Kab-Jong SEO