Patents by Inventor Sang-hyun Lim

Sang-hyun Lim 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: 10379641
    Abstract: A touch screen apparatus includes: an active area and a non-active area outside the active area; first sensing electrodes arranged along a first direction in the active area; second sensing electrodes arranged along a second direction intersecting the first direction in the active area, the second sensing electrodes being insulated from the first sensing electrodes; and at least one additional sensing electrode separated from the first and second sensing electrodes, the at least one additional sensing electrode being located in the non-active area.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 13, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hyun Lim, Chang Sub Jung, A Ra Jo, Jae Woo Choi
  • Patent number: 10338747
    Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 2, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do Ik Kim, Sang Hyun Lim, Ga Young Kim, Young Sik Kim, Sang Chul Lee
  • Publication number: 20190187507
    Abstract: A display device includes a flexible display panel and a cover window. The flexible display panel includes a display area to display an image and a pad area extending from the display area. The pad area is bent from the display area. The cover window is disposed on the flexible display panel.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Inventor: Sang-Hyun LIM
  • Patent number: 10282010
    Abstract: A display device includes: a display panel including an upper electrode and an encapsulation layer provided on the upper electrode; a touch panel including a first touch electrode and a second touch electrode each facing the upper electrode and positioned between the display panel and a cover window covering the display panel, the first touch electrode being separated from the second touch electrode; an elastic layer provided on the display panel and deforming in response to an applied pressure from a touch; and a touch sensor programmed to detect an applied pressure from a change in gaps between the first and second touch electrodes and the upper electrode due to the applied pressure, and to detect a capacitance between the first touch electrode and the second touch electrode caused by the touch, so as to sense a position of the touch.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 7, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Woo Choi, Sang Hyun Lim, Chang Sub Jung, A Ra Jo, Eun Gil Choi
  • Patent number: 10216020
    Abstract: A display device includes a flexible display panel and a cover window. The flexible display panel includes a display area to display an image and a pad area extending from the display area. The pad area is bent from the display area. The cover window is disposed on the flexible display panel.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: February 26, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Hyun Lim
  • Patent number: 10139928
    Abstract: An electronic pen sensing device includes: a substrate including a sensing region and a first sub sensing region, the first sub sensing region having a width smaller than a width of the sensing region; a first closed loop line disposed along edges of the sensing region and wound N times in a first rotation direction from a first node to a second node, and disposed along edges of the first sub sensing region and wound M times in a first rotation direction from the second node to the first node; and a controller configured to calculate a location of an electronic pen based on a first induction current which is output through the first node, wherein N and M are positive integers.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: November 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Lim, Chang-Sub Jung, A-Ra Jo, Jae-Woo Choi
  • Publication number: 20180329555
    Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 15, 2018
    Inventors: Do Ik KIM, Ga Young KIM, Sang Hyun LIM, Young Sik KIM, Sang Chul LEE, Hwan Hee JEONG
  • Publication number: 20180321793
    Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
    Type: Application
    Filed: March 7, 2018
    Publication date: November 8, 2018
    Inventors: Do Ik KIM, Sang Hyun LIM, Ga Young KIM, Young Sik KIM, Sang Chul LEE
  • Publication number: 20180224984
    Abstract: A touch sensor including a substrate including an active area and a non-active area, a plurality of first electrodes extending in first direction on the active area, a plurality of second electrodes extending in a second direction crossing the first direction on the active area, a plurality of third electrodes including electrode portions disposed in the first electrodes, respectively, being separated from the first electrodes, and extending in the first direction on the active area, and a sensing circuit including a plurality of signal receivers receiving sensing signals from the first electrodes, respectively, in which each of the signal receivers includes first and second input terminals connected to a pair of first and third electrodes corresponding to each other, respectively, and outputs a signal corresponding to a voltage difference between the first and second input terminals.
    Type: Application
    Filed: December 13, 2017
    Publication date: August 9, 2018
    Inventors: Do Ik Kim, Sang Hyun Lim, Ga Young Kim
  • Publication number: 20180067608
    Abstract: A stylus pen includes: a conductor; a housing surrounding at least one portion of the conductor, the housing having an insulating property; a pen tip disposed at one end of the housing, the pen tip having conductivity; and a contact member in contact with at least one of the conductor and the pen tip, wherein the conductor and the pen tip are electrically shorted or opened by the contact member.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 8, 2018
    Inventors: Sang Hyun LIM, Chang Sub JUNG, A Ra JO, Jae Woo CHOI
  • Patent number: 9874988
    Abstract: An electromagnetic induction panel includes a substrate including a first region, a second region, and a third region, a first induction coil arranged along an edge of the first region of the substrate and wound in a first winding direction, a second induction coil arranged along an edge of the second region and wound in a second winding direction opposite to the first winding direction, the second region surrounding the first region, and a third induction coil arranged along an edge of the third region and wound in the second winding direction, the third region surrounding the second region.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Lim, Chang-Sub Jung, A-Ra Jo, Eun-Gil Choi, Jae-Woo Choi
  • Publication number: 20180018029
    Abstract: A touch screen apparatus includes: an active area and a non-active area outside the active area; first sensing electrodes arranged along a first direction in the active area; second sensing electrodes arranged along a second direction intersecting the first direction in the active area, the second sensing electrodes being insulated from the first sensing electrodes; and at least one additional sensing electrode separated from the first and second sensing electrodes, the at least one additional sensing electrode being located in the non-active area.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 18, 2018
    Inventors: Sang Hyun LIM, Chang Sub JUNG, A Ra JO, Jae Woo CHOI
  • Publication number: 20170357354
    Abstract: A display device includes a display panel configured to display an image on a front surface thereof, and a flexible circuit board connected to the display panel and configured to drive the display panel. The display device further includes a pressure sensor including a first electrode and a second electrode. The pressure sensor is configured to sense a change of capacitance of a capacitor, which is formed between the first electrode and the second electrode, in accordance with a pressure applied thereto. The flexible circuit board includes a first surface and a second surface facing the first surface. The first electrode and the second electrode are disposed on the first surface or the second surface.
    Type: Application
    Filed: May 24, 2017
    Publication date: December 14, 2017
    Inventors: SANG HYUN LIM, Chang Sub Jung, A Ra Jo, Jae Woo Choi
  • Publication number: 20170205907
    Abstract: An electronic pen sensing device includes: a substrate including a sensing region and a first sub sensing region, the first sub sensing region having a width smaller than a width of the sensing region; a first closed loop line disposed along edges of the sensing region and wound N times in a first rotation direction from a first node to a second node, and disposed along edges of the first sub sensing region and wound M times in a first rotation direction from the second node to the first node; and a controller configured to calculate a location of an electronic pen based on a first induction current which is output through the first node, wherein N and M are positive integers.
    Type: Application
    Filed: December 28, 2016
    Publication date: July 20, 2017
    Inventors: Sang-Hyun LIM, Chang-Sub JUNG, A-Ra JO, Jae-Woo CHOI
  • Publication number: 20170168621
    Abstract: A display device may include a display panel, a window member provided above the display panel, a housing accommodating the display panel and the window member and including at least one protrusion on an inner surface thereof, and a pressure sensor including a first conductive layer provided on the at least one protrusion and a second conductive layer provided at a peripheral area of the first conductive layer to be spaced apart from the first conductive layer.
    Type: Application
    Filed: December 9, 2016
    Publication date: June 15, 2017
    Inventors: A Ra JO, Sang Hyun LIM, Chang Sub JUNG, Jae Woo CHOI
  • Publication number: 20170139525
    Abstract: A touch panel includes first touch electrodes, second touch electrodes, and third touch electrodes. The first touch electrodes include sub electrodes spaced apart from one another in a first direction. The second touch electrodes extend in a second direction crossing the first direction. The second touch electrodes are spaced apart from one another in the first direction. The third touch electrodes extend in the second direction and are spaced apart from one another in the first direction. The third touch electrodes are shaped differently than the second touch electrodes.
    Type: Application
    Filed: September 28, 2016
    Publication date: May 18, 2017
    Inventors: A-Ra JO, Sang-Hyun LIM, Chang-Sub JUNG, Jae-Woo CHOI
  • Publication number: 20170108969
    Abstract: An electromagnetic induction panel includes a substrate including a first region, a second region, and a third region, a first induction coil arranged along an edge of the first region of the substrate and wound in a first winding direction, a second induction coil arranged along an edge of the second region and wound in a second winding direction opposite to the first winding direction, the second region surrounding the first region, and a third induction coil arranged along an edge of the third region and wound in the second winding direction, the third region surrounding the second region.
    Type: Application
    Filed: April 8, 2016
    Publication date: April 20, 2017
    Inventors: Sang-Hyun LIM, Chang-Sub JUNG, A-Ra JO, Eun-Gil CHOI, Jae-Woo CHOI
  • Patent number: 9598617
    Abstract: Disclosed is an acrylate based adhesive composition for optical use that includes: a copolymer prepared by polymerizing an alkyl (meth)acrylate (wherein the alkyl is a C16 to C22 linear alkyl group) in an amount of about 1 to about 10 parts by weight, an alkyl (meth)acrylate (wherein the alkyl is a C1 to C12 alkyl group) in an amount of about 70 to about 98 parts by weight, and a polar monomer in an amount of about 1 to about 20 parts by weight; and a cross-linking agent. The cross-linking agent is included in an amount of about 0.5 to 5 parts by weight based on 100 parts by weight of the copolymer.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 21, 2017
    Assignees: Samsung Display Co., Ltd., NITTA CORPORATION
    Inventors: Dong-Sun Lee, Sang-Hyun Lim, Dae-Guen Choi, Hak-Sun Kim, Shinichiro Kawahara, Minoru Nanchi, Keisuke Sako, Yuta Irie, Satoshi Yamaguchi
  • Patent number: 9507192
    Abstract: A display device includes a cover window having curves at one or more outer blocks of the cover window, an outside and an inside of the cover window each having a shape of a quadrisected arc of an ellipse and together forming a lens, and a thickness of the cover window at one of the outer blocks being thicker than a thickness of the cover window at a center of the cover window; and a display panel attached to the inside of the cover window.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 29, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Lim, Jun-Ho Kwack
  • Publication number: 20160334098
    Abstract: Disclosed herein is a heating cabinet, in which a water collection tray is located in the heating cabinet such that the tray is not exposed to the outside, and water produced when an object is heated is collected in the water collection tray. The heating cabinet includes a main body defining a heating space in which an object to be heated is seated, a water collection tray provided under the heating space to be accommodated in the main body, and collecting water produced when the object is heated, and a front door rotatably coupled to a side of the main body to selectively close the open heating space while receiving the water collection tray, the front door having a guide part that is formed on a surface facing the heating space to guide the water, produced when the object is heated, to the water collection tray.
    Type: Application
    Filed: April 30, 2016
    Publication date: November 17, 2016
    Inventors: DUG WOO LEE, SANG HYUN LIM, JONG OH KIM, CHUN SEOK SONG, TAE MYOUNG KIM