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).

  • Publication number: 20220090968
    Abstract: The temperature sensor includes a first sensor including a sensing element configured to measure a first resistance value of the sensing element in a first state, and also configured to measure a second resistance value of the sensing element in a second state different from the first state, a second sensor configured to measure a touch pressure corresponding to a users touch input in the second state, a compensator configured to calculate a first change rate based on the first resistance value and the second resistance value, and also configured to calculate a change rate of a correction resistance value by correcting the first change rate based on the touch pressure, and a temperature calculator configured to calculate a temperature value based on the change rate of the correction resistance value.
    Type: Application
    Filed: March 26, 2021
    Publication date: March 24, 2022
    Inventor: Won Ki HONG
  • Publication number: 20220057286
    Abstract: A test apparatus includes: a stage having a planar surface extending in a first direction and a second direction crossing the first direction; a mounting portion that is disposed on the stage to place a test member thereon; an angle adjusting portion adjusting a first angle of the mounting portion to incline the mounting portion with respect to the planar surface of the stage; and a pressing guide disposed on the stage and moving a pressing member in the first direction, the second direction, and a third direction normal to the planar surface of the stage.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: Tae Hee LEE, Sung Kook PARK, So Hee PARK, Hee SEOMOON, Won Ki HONG
  • Publication number: 20220027007
    Abstract: A force sensor includes first and second substrates. The second substrate faces the first substrate. A driving electrode is disposed on a first surface of the first substrate facing the second substrate. A sensing electrode is disposed on the first surface of the first substrate and is spaced apart from the driving electrode. A force sensitive layer is disposed on a first surface of the second substrate, facing the first substrate. The driving electrode includes a main driving protrusion that protrudes from a side surface of the driving electrode, facing the sensing electrode.
    Type: Application
    Filed: October 5, 2021
    Publication date: January 27, 2022
    Inventors: WON KI HONG, SUNG KOOK PARK, SO HEE PARK, HEE SEOMOON, YOUNG SEOK SEO, TAE HEE LEE
  • Patent number: 11227898
    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: Grant
    Filed: July 26, 2017
    Date of Patent: January 18, 2022
    Inventors: Seung Lyong Bok, Hee June Kwak, Mu Gyeom Kim, Min Soo Kim, Won Ki Hong
  • Patent number: 11215522
    Abstract: A test apparatus includes: a stage having a planar surface extending in a first direction and a second direction crossing the first direction; a mounting portion that is disposed on the stage to place a test member thereon; an angle adjusting portion adjusting a first angle of the mounting portion to incline the mounting portion with respect to the planar surface of the stage; and a pressing guide disposed on the stage and moving a pressing member in the first direction, the second direction, and a third direction normal to the planar surface of the stage.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 4, 2022
    Inventors: Tae Hee Lee, Sung Kook Park, So Hee Park, Hee Seomoon, Won Ki Hong
  • Patent number: 11216177
    Abstract: An electronic device comprises a touch display that includes an edge portion on at least one side thereof, a sensor unit that includes a first pressure sensor disposed in a first sensing area of the edge portion and a second pressure sensor disposed in a second sensing area of the edge portion, and a control unit that displays a first user interface on the touch display in response to a first input signal that exceeds a predetermined pressure value being detected via at least one of the first or second pressure sensors and that performs a first action in response to a second input signal that exceeds a predetermined pressure value being detected via at least one of the first or second pressure sensors.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: January 4, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Seomoon, Won Ki Hong, Sung Kook Park, Tae Hee Lee
  • Patent number: 11209928
    Abstract: A display device includes a display panel. A window is disposed on the display panel. A conductive sheet is disposed beneath the display panel such that the display panel is disposed between the window and the conductive sheet. A pressure sensor is disposed between the display panel and the conductive sheet. The pressure sensor includes a sensing area corresponding to a portion of the pressure sensor. A pressure concentration bump is disposed between the window and the conductive sheet. The pressure concentration bump overlaps the sensing area. The pressure sensor includes a first electrode disposed within the sensing area and a second electrode spaced apart from the first electrode.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: December 28, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Ki Hong, Tae Hee Lee
  • Patent number: 11188167
    Abstract: A force sensor includes: a plurality of touch cells comprising a plurality of driving electrodes, a pressure sensing layer overlapping the driving electrodes, and a plurality of sensing electrodes overlapping the pressure sensing layer; and a touch driver configured to receive a raw data from the plurality of touch cells and to detect a touch pressure applied to the plurality of touch cells. The touch driver includes: a filtering unit configured to filter the raw data and to output sensing data; a data storage unit configured to store max data having the highest value from among the sensing data and propagation data of at least one adjacent touch cell adjacent to a max touch cell having the max data; and a noise removing unit configured to detect and remove noise from the sensing data.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: November 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeon Jun Lee, Won Ki Hong, So Hee Park, Hee Seomoon
  • Publication number: 20210349568
    Abstract: A display device including a display panel; a pressure sensor disposed under the display panel and including a first protrusion at one side thereof; and a waterproofing member disposed under the display panel and including a first accommodation portion at one side thereof facing the one side. The protrusion of the pressure sensor is disposed to face the first accommodation portion of the waterproofing member, and the first protrusion is inserted in the first accommodation portion.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 11, 2021
    Inventors: Sung Kook PARK, So Hee PARK, Hee SEOMOON, Tae Hee LEE, Won Ki HONG
  • Patent number: 11169633
    Abstract: A display apparatus includes a display panel and a touch sensing unit disposed on the display panel. The touch sensing unit includes a touch sensor and a first pressure sensor. The touch sensor includes a first touch electrode layer and a second touch electrode layer disposed on the first touch electrode layer. The first pressure sensor includes: a transmission pressure electrode, a sensing pressure electrode separated from the transmission pressure electrode, and a piezoresistive pattern contacting each of the transmission pressure electrode and the sensing pressure electrode. Each of the transmission pressure electrode and the sensing pressure electrode is disposed in a same layer as any one of the first touch electrode layer and the second touch electrode layer.
    Type: Grant
    Filed: June 21, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungkook Park, Taehee Lee, Won-ki Hong, Hee Seomoon
  • Patent number: 11169568
    Abstract: A display device includes a display panel, a middle frame, and a first pressure sensor. The middle frame is disposed under the display panel. The middle frame includes a first accommodating groove extending along a first long side of the display panel. The first pressure sensor is disposed in the first accommodating groove.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hee Lee, Sung Kook Park, So Hee Park, Hee Seomoon, Won Ki Hong
  • Patent number: 11171184
    Abstract: A display device includes: a display panel; a first force sensor disposed below the display panel; a display circuit board attached to a first side of the display panel; and a first flexible circuit board connecting the first force sensor and the display circuit board, wherein the display circuit board and the first flexible circuit board are bent at least once.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: November 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hee Lee, Sung Kook Park, So Hee Park, Hee Seomoon, Won Ki Hong
  • Patent number: 11163374
    Abstract: A display device includes: a display panel; a conductive sheet disposed below the display panel; a force concentration bump disposed below the conductive sheet and disposed adjacent to a first edge of the display panel; and a force sensor disposed below the conductive sheet, extending in a first direction along the first edge of the display panel, the force sensor includes a sensing region, wherein the force concentration bump overlaps the sensing region, and the force concentration bump and the conductive sheet are made of a same material.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Kook Park, So Hee Park, Hee Seomoon, Bong Hyun You, Tae Hee Lee, Won Ki Hong
  • Patent number: 11163395
    Abstract: The present disclosure relates to a touch sensor and a method for sensing a touch using the same, the touch sensor including a substrate, a first sensor and a plurality of second sensors provided on the substrate and configured to sense a location and a force of a touch, wherein the first sensor is disposed in a central area of one surface of the substrate, the plurality of second sensors are arranged to surround the first sensor, and a width of the plurality of second sensors increases as a distance from the central area increases.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: November 2, 2021
    Inventors: Won Ki Hong, Jong Seo Lee
  • Patent number: 11157120
    Abstract: A display device according to an embodiment includes: a display panel including a plurality of pixels disposed in a display region; a pressure sensor disposed to overlap with the display panel, the pressure sensor including a plurality of sensor electrodes disposed in a touch region; a bump structure disposed on at least one of a first surface and a second surface of the pressure sensor to be separated from the sensor electrodes; and a housing supporting the display panel, the pressure sensor, and the bump structure. The bump structure includes a plurality of bumps distributed on respective coordinate points at which the sensor electrodes are disposed.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Ki Hong, Tae Hee Lee, Rang Kyun Mok, Won Sang Park
  • Publication number: 20210319198
    Abstract: Provided are a force sensor, a display device including the same, and a method of driving the same. The force sensor includes a first base substrate and a second base substrate facing each other; first force sensor electrodes extending in a first direction and arranged in a second direction crossing the first direction on the first base substrate; second force sensor electrodes extending in the second direction and arranged in the first direction on the second base substrate; and a sensor hole configured to transmit light. Any one of the first force sensor electrodes includes a first sub-force sensor electrode disposed on a first side of the sensor hole and a second sub-force sensor electrode disposed on a second side opposite to the first side of the sensor hole.
    Type: Application
    Filed: March 1, 2021
    Publication date: October 14, 2021
    Inventors: Hee SEOMOON, Won Ki HONG, Hyeon Jun LEE
  • Publication number: 20210307697
    Abstract: A display device includes: a display panel including a first area having a first light transmissivity and a second area having a second light transmissivity higher than the first light transmissivity; a pressure sensor overlapping the first area; a light emitter overlapping the second area; a light receiver overlapping the second area and spaced from the light emitter; and a processor to control the light emitter and the pressure sensor, and to output a blood pressure signal on a basis of a pressure sensing signal from the pressure sensor and a light sensing signal from the light receiver.
    Type: Application
    Filed: November 19, 2020
    Publication date: October 7, 2021
    Inventors: WON-KI HONG, HEE SEOMOON, HYEON JUN LEE
  • Patent number: 11137850
    Abstract: A force sensor includes first and second substrates. The second substrate faces the first substrate. A driving electrode is disposed on a first surface of the first substrate facing the second substrate. A sensing electrode is disposed on the first surface of the first substrate and is spaced apart from the driving electrode. A three sensitive layer is disposed on a first surface of the second substrate, facing the first substrate. The driving electrode includes a main driving protrusion that protrudes from a side surface of the driving electrode, facing the sensing electrode.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Ki Hong, Sung Kook Park, So Hee Park, Hee Seomoon, Young Seok Seo, Tae Hee Lee
  • Publication number: 20210296408
    Abstract: A display device includes a display panel comprising a through hole and a pixel area, the pixel area surrounding the through hole and including pixels for displaying an image; a force sensor at a first surface of the display panel and configured to sense force applied from an outside; and a light sensor overlapping the through hole of the display panel in a thickness direction of the display panel, the light sensor being configured to sense light incident on the light sensor through the through hole.
    Type: Application
    Filed: November 2, 2020
    Publication date: September 23, 2021
    Inventors: Won Ki HONG, So Hee PARK, Hee SEOMOON, Hyeon Jun LEE
  • Patent number: 11119600
    Abstract: A pressure sensor for a display device, includes: a plurality of touch cells having a plurality of driving electrodes disposed on a first substrate, a plurality of sensing electrodes disposed on a second substrate overlapping the first substrate, and a pressure sensing layer interposed between the plurality of driving electrodes and the plurality of sensing electrodes, the driving electrodes and sensing electrodes overlapping each other; and a touch driver to drive the plurality of touch cells and to detect touch pressure of the plurality of touch cells; wherein, when a plurality of touch areas including at least one touch cell are detected, the touch driver is configured to compare magnitude of touch pressures of the plurality of touch areas and to ignore at least one touch input in at least one touch area.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: September 14, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Seomoon, Won Ki Hong, So Hee Park, Hyeon Jun Lee