Patents by Inventor Won Mook Choi

Won Mook Choi 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: 8860669
    Abstract: A touch screen panel includes: a first substrate and a second substrate, which face each other with respect to a liquid crystal interposed therebetween; and a touch sensor interposed between the first substrate and the second substrate. The touch sensor includes: a plurality of first touch signal lines disposed on the first substrate and extending in a first direction; a protective layer disposed on the first substrate, the protective layer including a dielectric material and substantially the plurality of first touch signal lines; a plurality of contact pads disposed on the protective layer; a plurality of second touch signal lines disposed on the second substrate and extending in a second direction perpendicular to the first direction; and a plurality of touch sensor spacers electrically connected to the plurality of second touch signal lines. A gap between the touch sensor spacers and the plurality of contact pads is defined, and the spacers are disposed to face the plurality of contact pads.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eok-su Kim, Jae-young Choi, Won-mook Choi, Duk-hyun Choi
  • Publication number: 20140263166
    Abstract: A graphene base, including: graphene; and a substrate, wherein the graphene is formed directly on at least one surface of the substrate, and at least about 90 percent of an area of the surface of the substrate does not have a graphene wrinkle.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 18, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyeon-jin SHIN, Won-mook CHOI, Jae-young CHOI, Seon-mi YOON
  • Patent number: 8759199
    Abstract: A method of selectively growing a plurality of semiconductor carbon nanotubes using light irradiation. The method includes disposing a plurality of nanodots, which include a catalyst material, on a substrate; growing a plurality of carbon nanotubes from the plurality of nanodots, and irradiating light onto the nanodot to selectively grow the plurality of semiconductor carbon nanotubes.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: June 24, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-mook Choi, Jae-young Choi, Jin Zhang, Guo Hong
  • Publication number: 20140140020
    Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.
    Type: Application
    Filed: August 23, 2013
    Publication date: May 22, 2014
    Inventors: John A. ROGERS, Yonggang HUANG, Heung Cho KO, Mark STOYKOVICH, Won Mook CHOI, Jizhou SONG, Jong Hyun AHN, Dae Hyeong KIM
  • Patent number: 8729524
    Abstract: In an aspect, the present invention provides stretchable, and optionally printable, components such as semiconductors and electronic circuits capable of providing good performance when stretched, compressed, flexed or otherwise deformed, and related methods of making or tuning such stretchable components. Stretchable semiconductors and electronic circuits preferred for some applications are flexible, in addition to being stretchable, and thus are capable of significant elongation, flexing, bending or other deformation along one or more axes. Further, stretchable semiconductors and electronic circuits of the present invention are adapted to a wide range of device configurations to provide fully flexible electronic and optoelectronic devices.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: May 20, 2014
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: John A. Rogers, Matthew Meitl, Yugang Sun, Heung Cho Ko, Andrew Carlson, Won Mook Choi, Mark Stoykovich, Hanqing Jiang, Yonggang Huang, Ralph G. Nuzzo, Zhengtao Zhu, Etienne Menard, Dahl-Young Khang
  • Publication number: 20140110670
    Abstract: A hydrophobic organic layer may be formed on a surface of a graphene doped with a dopant to improve stability of the doped graphene with respect to moisture and temperature. Thus, the transparent electrode having the doped graphene containing the hydrophobic organic layer may be usefully applied in solar cells or display devices.
    Type: Application
    Filed: March 20, 2013
    Publication date: April 24, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-mi YOON, Hyeon-jin SHIN, Jae-young CHOI, Won-mook CHOI, Soo-min KIM, Young-hee LEE
  • Patent number: 8552299
    Abstract: Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: October 8, 2013
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: John A. Rogers, Yonggang Huang, Heung Cho Ko, Mark Stoykovich, Won Mook Choi, Jizhou Song, Jong Hyun Ahn, Dae Hyeong Kim
  • Patent number: 8507895
    Abstract: An organic light emitting device including graphene. The organic light emitting device includes a first electrode that is interposed between a transparent substrate and an organic layer emitting light, and includes graphene having a thickness of about 0.1 nanometer (nm) to about 10 nanometers (nm).
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-young Choi, Won-mook Choi
  • Patent number: 8492747
    Abstract: A transistor includes at least three terminals comprising a gate electrode, a source electrode and a drain electrode, an insulating layer disposed on a substrate, and a semiconductor layer disposed on the substrate, wherein a current which flows between the source electrode and the drain electrode is controlled by application of a voltage to the gate electrode, where the semiconductor layer includes a graphene layer and at least one of a metal atomic layer and a metal ion layer, and where the metal atomic layer or the metal ion layer is interposed between the graphene layer and the insulating layer.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: July 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-young Choi, Hyeon-jin Shin, Seon-mi Yoon, Won-mook Choi
  • Patent number: 8470701
    Abstract: Various heat-sinked components and methods of making heat-sinked components are disclosed where diamond in thermal contact with one or more heat-generating components are capable of dissipating heat, thereby providing thermally-regulated components. Thermally conductive diamond is provided in patterns capable of providing efficient and maximum heat transfer away from components that may be susceptible to damage by elevated temperatures. The devices and methods are used to cool flexible electronics, integrated circuits and other complex electronics that tend to generate significant heat. Also provided are methods of making printable diamond patterns that can be used in a range of devices and device components.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: June 25, 2013
    Assignees: Advanced Diamond Technologies, Inc.
    Inventors: John A. Rogers, Tae Ho Kim, Won Mook Choi, Dae Hyeong Kim, Matthew Meitl, Etienne Menard, John Carlisle
  • Patent number: 8398876
    Abstract: A method for chemical modification of graphene includes dry etching graphene to provide an etched graphene; and introducing a functional group at an edge of the etched graphene. Also disclosed is graphene, including an etched edge portion, the etched portion including a functional group.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Mook Choi, Byung Hee Hong, Jaeyoung Choi
  • Publication number: 20130043475
    Abstract: A transistor may include a light-blocking layer that blocks light incident on a channel layer. The light-blocking layer may include a carbon-based material. The carbon-based material may include graphene oxide, graphite oxide, graphene or carbon nanotube (CNT). The light-blocking layer may be between a gate and at least one of the channel layer, a source and a drain.
    Type: Application
    Filed: June 6, 2012
    Publication date: February 21, 2013
    Applicants: SAMSUNG MOBILE DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-suk Kim, Sang-yoon Lee, Myung-kwan Ryu, Tae-sang Kim, Jong-baek Seon, Kyoung-seok Son, Won-mook Choi, Joon-seok Park, Mi-jeong Song
  • Publication number: 20120327608
    Abstract: In an aspect, the present invention provides stretchable, and optionally printable, components such as semiconductors and electronic circuits capable of providing good performance when stretched, compressed, flexed or otherwise deformed, and related methods of making or tuning such stretchable components. Stretchable semiconductors and electronic circuits preferred for some applications are flexible, in addition to being stretchable, and thus are capable of significant elongation, flexing, bending or other deformation along one or more axes. Further, stretchable semiconductors and electronic circuits of the present invention are adapted to a wide range of device configurations to provide fully flexible electronic and optoelectronic devices.
    Type: Application
    Filed: April 6, 2012
    Publication date: December 27, 2012
    Inventors: John A. ROGERS, Matthew Meitl, Yugang Sun, Heung Cho Ko, Andrew Carlson, Won Mook Choi, Mark Stoykovich, Hanging Jiang, Yonggang Huang, Ralph G. Nuzzo, Zhengtao Zhu, Etienne Menard, Dahl-Young Khang
  • Publication number: 20120267041
    Abstract: A method of forming a multi-layer graphene includes forming a stack of a graphitizing metal catalyst layer and graphene by repeatedly performing a cycle of first forming the graphitizing metal catalyst layer on a substrate, and then forming the graphene on the graphitizing metal catalyst layer, and removing the graphitizing metal catalyst layer.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-sung Woo, Jae-young Choi, Won-mook Choi, Hyeon-jin Shin, Seon-mi Yoon
  • Publication number: 20120256168
    Abstract: According to example embodiments, a semiconductor device includes a first electrode, a second electrode apart from the first electrode, and an active layer between the first and second electrodes. The active layer includes first and second layers, the first layer contacts the first and second electrodes, and the second layer is separated from at least one of the first and second electrodes.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 11, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jiyoul Lee, Eok-su Kim, Won-mook Choi, Sun-kook Kim
  • Patent number: 8217381
    Abstract: In an aspect, the present invention provides stretchable, and optionally printable, components such as semiconductors and electronic circuits capable of providing good performance when stretched, compressed, flexed or otherwise deformed, and related methods of making or tuning such stretchable components. Stretchable semiconductors and electronic circuits preferred for some applications are flexible, in addition to being stretchable, and thus are capable of significant elongation, flexing, bending or other deformation along one or more axes. Further, stretchable semiconductors and electronic circuits of the present invention are adapted to a wide range of device configurations to provide fully flexible electronic and optoelectronic devices.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: July 10, 2012
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: John A. Rogers, Matthew Meitl, Yugang Sun, Heung Cho Ko, Andrew Carlson, Won Mook Choi, Mark Stoykovich, Hanqing Jiang, Yonggang Huang, Ralph G. Nuzzo, Keon Jae Lee, Zhengtao Zhu, Etienne Menard, Dahl-Young Khang, Seong Jun Kang, Jong Hyun Ahn, Hoon-sik Kim
  • Publication number: 20120080086
    Abstract: A transparent electrode on at least one surface of a transparent substrate may include graphene doped with a p-dopant. The transparent electrode may be efficiently applied to a variety of display devices or solar cells.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 5, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-mi Yoon, Won-mook Choi, Hyeon-jin Shin, Jae-young Choi
  • 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: 20110127497
    Abstract: An organic light emitting device including graphene. The organic light emitting device includes a first electrode that is interposed between a transparent substrate and an organic layer emitting light, and includes graphene having a thickness of about 0.1 nanometer (nm) to about 10 nanometers (nm).
    Type: Application
    Filed: August 13, 2010
    Publication date: June 2, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-young CHOI, Won-mook CHOI
  • Publication number: 20110127471
    Abstract: A composition including graphene; and a dopant selected from the group consisting of an organic dopant, an inorganic dopant, and a combination including at least one of the foregoing.
    Type: Application
    Filed: July 30, 2010
    Publication date: June 2, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-jin SHIN, Won-mook CHOI, Jae-young CHOI, Seon-mi YOON