Patents by Inventor Won-Ki Hong

Won-Ki Hong 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).

  • Sensor and display device having the same
    Patent number: 10139974
    Abstract: A display device includes a display panel configured to display an image, and a sensor provided on at least one surface of the display panel and configured to sense a touch location and a touch pressure. The sensor includes a sensing unit having sensing electrodes formed on a same layer, and of which a capacitance changes according to a touch, and a resistance element disposed on the sensing unit, and of which a resistance changes according to a pressure of the touch. Accordingly, touch and touch intensity can both be sensed.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: November 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Ki Hong, Young Seok Seo, Jong Ho Hong
  • Touch screen panel and touch sensing apparatus having the same
    Patent number: 10078404
    Abstract: A touch screen panel includes a first touch electrode part, a second touch electrode part, a first touch router, a second touch router and plural third touch routers. The first touch electrode part includes plural first touch units. The second touch electrode part is substantially parallel to the first touch electrode part. The second touch electrode part includes plural second touch units. The first touch router is disposed adjacent to the first touch electrode part and is connected to one of an even-numbered first touch unit and an odd-numbered first touch unit of the first touch units. The second touch router is disposed adjacent to the first touch electrode part and is connected to the other of the even-numbered first touch unit and the odd-numbered first touch unit of the first touch units. The third touch routers are connected to each of the second touch units, respectively.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: September 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won-Ki Hong, Seung-Ho Nam, Ji-Hong Park, Moon-Sung Choi
  • SENSOR AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180224978
    Abstract: A display device includes a display panel, a variable resistance element positioned on the display panel, a first driving wiring line and a first sensing wiring line connected to the variable resistance element with the variable resistance element disposed between the first driving wiring line and the first sensing wiring line, and a second driving wiring line and a second sensing wiring line connected to the variable resistance element with the variable resistance element disposed between the second driving wiring line and the second sensing wiring line. A first current path between the first driving wiring line and the first sensing wiring line in the variable resistance element is different from a second current path between the second driving wiring line and the second sensing wiring line in the variable resistance element.
    Type: Application
    Filed: December 21, 2017
    Publication date: August 9, 2018
    Inventors: Won Ki HONG, Tae Hee LEE
  • DISPLAY DEVICE
    Publication number: 20180224992
    Abstract: A display device may include: a display panel; and a pressure sensor provided on one surface of the display panel, wherein the pressure sensor includes: a first substrate including: a first base substrate; and receiving electrodes disposed on the first base substrate, the receiving electrodes extending in a first direction; a second substrate disposed between the first substrate and the display panel, the second substrate including: a second base substrate; and driving electrodes disposed on a surface of the second base substrate facing the first substrate, the driving electrodes extending in a second direction crossing the receiving electrodes; and a variable resistance layer provided on a surface of one of the driving electrodes and the receiving electrodes, wherein the second base substrate includes a material configured for at least one of blocking light and absorbing light.
    Type: Application
    Filed: December 11, 2017
    Publication date: August 9, 2018
    Inventors: Won Ki Hong, Tae Hee Lee
  • DISPLAY DEVICE
    Publication number: 20180210600
    Abstract: A display device includes: a display panel including a display area including at least a partially curved surface area; a touch sensor overlapping the display area to acquire touch information on a touch of a user; a pressure sensor to sense a pressure of the touch; and a controller configured to perform user authentication by controlling the display panel, the touch sensor, and the pressure sensor, wherein the touch sensor includes a plurality of sensor pixels that senses a change in capacitance corresponding to the touch, wherein the pressure sensor includes: a first electrode; a second electrode spaced apart from the first electrode; and a pressure sensing element provided between the first electrode and the second electrode.
    Type: Application
    Filed: December 12, 2017
    Publication date: July 26, 2018
    Inventors: Tae Hee LEE, Won Ki HONG, Rang Kyun MOK
  • TOUCH SENSOR AND METHOD OF DRIVING THE SAME
    Publication number: 20180203534
    Abstract: A touch sensor and a method of driving the same are provided. A touch sensor includes a plurality of first electrodes positioned on a substrate, a plurality of second electrodes positioned on the substrate to be separate from the plurality of first electrodes, an elastic member positioned between the plurality of first electrodes and the plurality of second electrodes, and a controller to apply a driving signal to the plurality of first electrodes and the plurality of second electrodes and to obtain an output signal of the plurality of first electrodes. A shape of the elastic member is changeable in accordance with pressure, and the controller obtains a touch waveform corresponding to concurrently input multiple touches and calculates positions of the multiple touches with reference to a peak of the touch waveform.
    Type: Application
    Filed: November 30, 2017
    Publication date: July 19, 2018
    Inventors: Won Ki HONG, Tae Hee LEE
  • SECURITY DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180196989
    Abstract: A security device includes a biometric sensor which senses biometric information of a user, a pressure sensor which senses a contact surface caused by the user and to obtain force distribution information of the contact surface, and a user authenticator which performs user authentication with reference to the biometric information and the force distribution information.
    Type: Application
    Filed: September 22, 2017
    Publication date: July 12, 2018
    Inventors: Won Ki HONG, Tae Hee LEE
  • TOUCH SENSOR AND TOUCH SENSING SYSTEM INCLUDING THE SAME
    Publication number: 20180188889
    Abstract: A touch sensor and a touch sensing system including the same. The touch sensor according to an embodiment may include a substrate having a first surface and a second surface opposite the first surface, a plurality of first electrodes on the first surface of the substrate, a plurality of second electrodes on the second surface of the substrate, and a plurality of coupling parts configured to couple the plurality of first electrodes to the plurality of second electrodes, respectively. Each of the first electrodes and the second electrodes has a spirally wound shape.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 5, 2018
    Inventor: Won Ki HONG
  • STEERING WHEEL AND VEHICLE CONTROL SYSTEM INCLUDING THE SAME
    Publication number: 20180178760
    Abstract: A steering wheel includes a wheel frame, and a cover layer covering the wheel frame. The cover layer includes a touch sensor which generates touch information based on a touch of a user, and the touch sensor includes a plurality of sensor pixels which senses a capacitance change corresponding to the touch.
    Type: Application
    Filed: November 2, 2017
    Publication date: June 28, 2018
    Inventors: Tae Hee LEE, Won Ki HONG
  • SHIFT LEVER AND VEHICLE CONTROL SYSTEM INCLUDING THE SAME
    Publication number: 20180180169
    Abstract: A shift lever includes a lever knob, and a cover layer covering the lever knob, where the cover layer includes a touch sensor which generates touch information on a touch of a user, and the touch sensor includes a plurality of sensor pixels which senses a capacitance change corresponding to the touch.
    Type: Application
    Filed: September 1, 2017
    Publication date: June 28, 2018
    Inventors: Tae Hee LEE, Won Ki HONG
  • TOUCH SENSOR AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180107325
    Abstract: A display device includes a display panel, a touch sensor, and a conductive layer. The touch sensor is disposed on the display panel, and is configured to detect a pressure of a touch and calculate a position and an intensity of the touch. The conductive layer is disposed on the touch sensor. The touch sensor includes a plurality of first electrodes, a plurality of second electrodes spaced apart from the plurality of first electrodes, and a plurality of elastic members disposed between the plurality of first electrodes and the plurality of second electrodes. The display device is configured to calculate a variation a of capacitance between the plurality of first electrodes and the plurality of second electrodes that is caused by a transformation of the elastic member in response to the pressure of the touch.
    Type: Application
    Filed: May 31, 2017
    Publication date: April 19, 2018
    Inventors: WON KI HONG, JONG IN BAEK, EUN JIN SUNG
  • ROLLABLE DISPLAY PANEL AND ROLLABLE DISPLAY DEVICE HAVING THE SAME
    Publication number: 20180107306
    Abstract: A rollable display panel and a rollable display device, the rollable display panel including a display region configured to display an image; a non-display region surrounding the display region; and a resistor sensor in the non-display region including sensing material of which resistance values are different by location, wherein the resistor sensor outputs a sensing signal that is regularly changed proportional to a rolling length of the rollable display panel, and a sensor driver that determines a driving region of the rollable display panel based on the sensing signal.
    Type: Application
    Filed: September 19, 2017
    Publication date: April 19, 2018
    Inventors: Won-Ki Hong, Young-Jun Seo, Tae-Hee Lee
  • DISPLAY DEVICE WITH TOUCH SENSING UNIT
    Publication number: 20180095574
    Abstract: A display device may include a first substrate, a touch sensor disposed on the first substrate, a second substrate disposed on the touch sensor, and a display unit disposed on the second substrate and which displays an image. The touch sensor includes a piezoelectric device, which senses a touch thereon, and an adhesive layer, which attaches the first and second substrates to each other. The piezoelectric device and the adhesive layer are disposed in a same layer.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 5, 2018
    Inventors: Junghyun KIM, Won-ki HONG, Minsoo KIM
  • TOUCH SENSOR AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180081478
    Abstract: A touch sensor includes a pressure sensor configured to become compressed along a first axis in response to a touch input into a touch area and a controller. The controller is configured to calculate a position of the touch and an intensity of the touch by using a detection signal obtained from the pressure sensor. The controller is further configured to calculate a first position, which has a greatest value of compression of the pressure sensor along the first axis, and calculate a position of the touch by correcting the first position by a first correction value corresponding to the greatest value of compression.
    Type: Application
    Filed: May 1, 2017
    Publication date: March 22, 2018
    Inventors: WON KI HONG, WON SANG PARK, TAE HEE LEE
  • INPUT SENSOR AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180067614
    Abstract: An input sensor including a substrate, a first pressure sensor disposed on the substrate, and a sensor controller configured to apply a driving signal to the first pressure sensor and calculate a position and an intensity of a touch by using a first detection signal obtained from the first pressure sensor, in which the sensor controller is configured to not apply the driving signal to at least a portion of the first pressure sensor when the substrate is folded.
    Type: Application
    Filed: May 23, 2017
    Publication date: March 8, 2018
    Inventor: Won Ki Hong
  • FLEXIBEL DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    Publication number: 20180059822
    Abstract: A flexible display device and a method of driving a flexible display device are provided. The method of driving the flexible display device includes detecting a capacitance change with respect to at least some coordinates of a display area, determining whether bending is occurring through the detected capacitance change, and setting a driving mode in response to a result of the step of determining whether bending is occurring, wherein the driving mode is converted into a bending mode when it is determined that bending is occurring, and the driving mode is set into a force touch mode when it is determined that bending is not occurring.
    Type: Application
    Filed: July 31, 2017
    Publication date: March 1, 2018
    Inventors: Young Seok SEO, Won-Ki HONG, Jung Hyun KIM, Hyoung Wook JANG
  • Providing hover touch on a touch panel and method for driving the touch panel
    Patent number: 9891771
    Abstract: A touch panel includes touch electrodes and a touch driver configured to apply a driving signal to the touch electrodes to form sensing capacitors comprising the touch electrodes, the touch driver configured to sense a change in an amount of charge caused by the sensing capacitors. The touch driver is configured to distinguish hovering and floating based upon a result of sensing the time change in an amount of charge. The touch driver is configured to apply a highest level of the driving signal to a hovering electrode corresponding to a hovering position from among the touch electrodes.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Ki Hong, Jong Seo Lee
  • DISPLAY APPARATUS
    Publication number: 20180033837
    Abstract: A display apparatus includes: a first substrate having a front surface and a rear surface; a first display layer disposed on the front surface of the first substrate, the first display layer configured to emit light in a front direction; a second display layer disposed on the rear surface of the first substrate, the second display layer configured to emit light in a rear direction; and a pressure sensor disposed on the rear surface of the first substrate, the pressure sensor configured to sense a pressure of a touch of a user.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: Seung Lyong BOK, Hee June KWAK, Mu Gyeom KIM, Min Soo KIM, Won Ki HONG
  • TOUCH SENSOR AND DISPLAY DEVICE HAVING THE SAME
    Publication number: 20180018044
    Abstract: A touch sensor may include a base substrate, a sensing unit including a first electrode and a second electrode provided on a same layer of the base substrate and not overlapping with each other, wherein a capacitance of the sensing unit is changed by a user's touch, and a cushion layer disposed on at least one surface of the sensing unit and configured to have a permittivity change in response to a pressure of the user's touch, wherein the cushion layer may include an insulator and conductive particles and the insulator may include an elastic material elastically deformed by the pressure of the user's touch.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 18, 2018
    Inventors: Jong Ho Hong, Mu Gyeom Kim, Won Sang Park, Young Seok Seo, Won Ki Hong
  • Display device including a touch panel that detects touch based on sensing signal delay
    Patent number: 9864444
    Abstract: A touch-sensitive display device is provided. The touch-sensitive display device includes a display panel and a touch panel. The display panel includes first and second substrates facing each other. The display panel is configured to display images through the second substrate. The touch panel is disposed on the second substrate and is configured to detect a touch event. The touch panel includes sensing electrodes spaced apart from each other, a conductive layer, and a touch processor. The conductive layer is electrically separated from the sensing electrodes. The touch processor is configured to provide sensing signals to the sensing electrodes and to obtain touch coordinates to which the touch event is input based on delay values of the sensing signals.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kangwon Lee, Won-Ki Hong, Seungho Nam, Taehyeog Jung