Patents by Inventor So-Hyung Lee

So-Hyung Lee 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: 11963439
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: April 16, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Eun-Joung Choi, Young-Kwang Kim, Su-Hyun Lee, So-Young Jung, YeJin Jeon, Hong-Se Oh, Dong-Hyung Lee, Jin-Man Kim, Hyun-Woo Kang, Mi-Ja Lee, Hee-Ryong Kang, Hyo-Nim Shin, Jeong-Hwan Jeon, Sang-Hee Cho
  • Publication number: 20240107770
    Abstract: A semiconductor memory device includes; a first stacked structure including a first staircase portion, a second stacked structure on the first stacked structure and including a second staircase portion overlapping the first staircase portion, a first contact plug penetrating the first stacked structure and the second stacked structure, electrically connected to the first stacked structure and not electrically connected to the second stacked structure, and a second contact plug penetrating the first stacked structure and the second stacked structure, electrically connected to the second stacked structure and not electrically connected to the first stacked structure.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Inventors: So Hyeon Lee, Sung Su Moon, Jae Duk Lee, Ik-Hyung Joo
  • Patent number: 10411134
    Abstract: A display device includes a gate electrode on a substrate of a semiconductor device, a gate insulating film over the gate electrode, an active layer comprising an oxide including indium, zinc and gallium on the gate insulating film, and overlapping the gate electrode, and a source electrode and a drain electrode that are spaced apart from each other, wherein the active layer is formed from a zinc-rich target material, and an atomic % ratio of indium, zinc and gallium in the active layer is different from an atomic % ratio of the zinc-rich target material.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: September 10, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Min-Cheol Kim, Youn-Gyoung Chang, Kwon-Shik Park, So-Hyung Lee, Ho-Young Jung, Ha-Jin Yoo, Jeong-Suk Yang
  • Patent number: 10175801
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 10100225
    Abstract: A CMP slurry composition for polishing a metal wire and a polishing method, the CMP slurry composition including polishing particles; an oxidant; a complexing agent; a corrosion inhibitor; and deionized water, wherein the corrosion inhibitor includes an inorganic nitrite or ammonium nitrate.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: October 16, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: So Hyung Lee, Keun Bong Do, Dong Jin Kim, Kang Su An, Young Chul Jung
  • Publication number: 20180219099
    Abstract: A display device includes a gate electrode on a substrate of a semiconductor device, a gate insulating film over the gate electrode, an active layer comprising an oxide including indium, zinc and gallium on the gate insulating film, and overlapping the gate electrode, and a source electrode and a drain electrode that are spaced apart from each other, wherein the active layer is formed from a zinc-rich target material, and an atomic % ratio of indium, zinc and gallium in the active layer is different from an atomic % ratio of the zinc-rich target material.
    Type: Application
    Filed: March 23, 2018
    Publication date: August 2, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Min-Cheol KIM, Youn-Gyoung CHANG, Kwon-Shik PARK, So-Hyung LEE, Ho-Young JUNG, Ha-Jin YOO, Jeong-Suk YANG
  • Patent number: 9960282
    Abstract: A method for manufacturing a semiconductor device is discussed. The method includes forming a gate electrode on a substrate, forming a gate insulating film over the substrate, depositing an In—Ga—Zn oxide over the gate insulating film while heating the substrate to a temperature of 200 to 300° C., an atomic percent ratio of Zn in the In—Ga—Zn oxide as-deposited being higher than that of In or Ga, heat-treating the deposited In—Ga—Zn oxide at a temperature of 200 to 350° C., thereby forming an active layer crystallized throughout an entire thickness of the active layer, and forming a source electrode and a drain electrode.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: May 1, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Min-Cheol Kim, Youn-Gyoung Chang, Kwon-Shik Park, So-Hyung Lee, Ho-Young Jung, Ha-Jin Yoo, Jeong-Suk Yang
  • Publication number: 20180024679
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Application
    Filed: August 16, 2017
    Publication date: January 25, 2018
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 9840417
    Abstract: Disclosed is AA? graphite with a new stacking feature of graphene, and a fabrication method thereof. Graphene is stacked in the sequence of AA? where alternate graphene layers exhibiting the AA? stacking are translated by a half hexagon (1.23 ?). AA? graphite has an interplanar spacing of about 3.44 ? larger than that of the conventional AB stacked graphite (3.35 ?) that has been known as the only crystal of pure graphite. This may allow the AA? stacked graphite to have unique physical and chemical characteristics.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: December 12, 2017
    Assignee: Korea Institute of Science and Technology
    Inventors: Jae-Kap Lee, So-Hyung Lee, Jae-Pyoung Ahn, Seung-cheol Lee, Wook-Seong Lee
  • Publication number: 20170309749
    Abstract: A method for manufacturing a semiconductor device is discussed. The method includes forming a gate electrode on a substrate, forming a gate insulating film over the substrate, depositing an In—Ga—Zn oxide over the gate insulating film while heating the substrate to a temperature of 200 to 300° C., an atomic percent ratio of Zn in the In—Ga—Zn oxide as-deposited being higher than that of In or Ga, heat-treating the deposited In—Ga—Zn oxide at a temperature of 200 to 350° C., thereby forming an active layer crystallized throughout an entire thickness of the active layer, and forming a source electrode and a drain electrode.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 26, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Min-Cheol KIM, Youn-Gyoung CHANG, Kwon-Shik PARK, So-Hyung LEE, Ho-Young JUNG, Ha-Jin YOO, Jeong-Suk YANG
  • Patent number: 9766736
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: September 19, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 9735281
    Abstract: An oxide semiconductor crystallization method may include depositing an In—Ga—Zn oxide over the substrate while heating a substrate to a temperature of 200 to 300° C., and heat-treating the deposited In—Ga—Zn oxide at a temperature of 200 to 350° C., thereby forming an oxide semiconductor layer crystallized throughout an entire thickness thereof.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: August 15, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Min-Cheol Kim, Youn-Gyoung Chang, Kwon-Shik Park, So-Hyung Lee, Ho-Young Jung, Ha-Jin Yoo, Jeong-Suk Yang
  • Publication number: 20170166779
    Abstract: A CMP slurry composition for polishing a metal wire and a polishing method, the CMP slurry composition including polishing particles; an oxidant; a complexing agent; a corrosion inhibitor; and deionized water, wherein the corrosion inhibitor includes an inorganic nitrite or ammonium nitrate.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 15, 2017
    Inventors: So Hyung LEE, Keun Bong DO, Dong Jin KIM, Kang Su AN, Young Chul JUNG
  • Publication number: 20160163866
    Abstract: An oxide semiconductor crystallization method may include depositing an In—Ga—Zn oxide over the substrate while heating a substrate to a temperature of 200 to 300° C., and heat-treating the deposited In—Ga—Zn oxide at a temperature of 200 to 350° C., thereby forming an oxide semiconductor layer crystallized throughout an entire thickness thereof.
    Type: Application
    Filed: November 10, 2015
    Publication date: June 9, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Min-Cheol KIM, Youn-Gyoung CHANG, Kwon-Shik PARK, So-Hyung LEE, Ho-Young JUNG, Ha-Jin YOO, Jeong-Suk YANG
  • Patent number: 9343483
    Abstract: A method for manufacturing a thin film transistor (TFT) array substrate having enhanced reliability is disclosed. The method includes forming a multilayer structure including at least one first metal layer and a second metal layer made of copper, forming a first mask layer including a first mask area corresponding to a data line and a second mask area corresponding to an electrode pattern to overlap with an active layer, patterning the multilayer structure, thereby forming the data line constituted by the multilayer structure, patterning the second metal layer, thereby forming the electrode pattern constituted by the at least one first metal layer, forming a second mask layer to expose a portion of the electrode pattern corresponding to a channel area of the active layer, patterning the at least one first metal layer, thereby forming source and drain.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: May 17, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Cheol Kim, Youn-Gyoung Chang, Kwon-Shik Park, So-Hyung Lee, Ho-Young Jung, Ha-Jin Yoo, Jeong-Suk Yang
  • Publication number: 20160122188
    Abstract: Disclosed is AA? graphite with a new stacking feature of graphene, and a fabrication method thereof. Graphene is stacked in the sequence of AA? where alternate graphene layers exhibiting the AA? stacking are translated by a half hexagon (1.23 ?). AA? graphite has an interplanar spacing of about 3.44 ? larger than that of the conventional AB stacked graphite (3.35 ?) that has been known as the only crystal of pure graphite. This may allow the AA? stacked graphite to have unique physical and chemical characteristics.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 5, 2016
    Applicant: Korea Institute of Science and Technology
    Inventors: Jae-Kap LEE, So-Hyung LEE, Jae-Pyoung AHN, Seung-cheol LEE, Wook-Seong LEE
  • Patent number: 9256309
    Abstract: A display device comprises a touch panel including a plurality of electrode columns that each includes a plurality of electrodes positioned in the electrode column. The display device further comprises a plurality of lines, each of which is connected to a corresponding electrode included in a corresponding one of the plurality of electrode columns. The lengths of the lines within a first electrode column increase as the lines are positioned further from one end of the first electrode column that is not adjacent to the second electrode column in a direction substantially perpendicular to a longitudinal direction of the lines of the first electrode column and the lengths of the lines within a second electrode column decrease as the lines are positioned further from the one end of the first electrode column in the direction substantially perpendicular to a longitudinal direction of the lines of the second electrode column.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: February 9, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: So-Hyung Lee, Jun-Seok Oh
  • Publication number: 20160034085
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 4, 2016
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 9200363
    Abstract: Disclosed is AA? graphite with a new stacking feature of graphene, and a fabrication method thereof. Graphene is stacked in the sequence of AA? where alternate graphene layers exhibiting the AA? stacking are translated by a half hexagon (1.23 ?). AA? graphite has an interplanar spacing of about 3.44 ? larger than that of the conventional AB stacked graphite (3.35 ?) that has been known as the only crystal of pure graphite. This may allow the AA? stacked graphite to have unique physical and chemical characteristics.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: December 1, 2015
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae-Kap Lee, So-Hyung Lee, Jae-Pyoung Ahn, Seung-Cheol Lee, Wook-Seong Lee
  • Patent number: 9141223
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: September 22, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han