Patents by Inventor Kyung Tea PARK

Kyung Tea PARK 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: 10380404
    Abstract: A display device includes a substrate, display elements, a window, and a photo sensor array. The substrate includes a display area and a non-display area. The display elements overlap the display area. The window is disposed on the substrate. The photo sensor array is disposed between the substrate and the window. The photo sensor array is configured to sense three-dimensional pattern information (e.g., epidermal ridge information) of a user via light reflected from a touch input of the user. One or more of the display elements is configured to illuminate a contact area of the touch input with the light.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: August 13, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Chan Kim, Il Nam Kim, Kyung Tea Park, Byung Han Yoo, Tae Hee Lee
  • Patent number: 10374019
    Abstract: A display device includes: a display panel including a display area for displaying an image; a window provided on an upper portion of the display panel; a protection plate provided on a lower portion of the display panel; and a photosensor provided at least one of between the display panel and the window and between the display panel and the protection plate, wherein the photosensor includes a shutter for controlling light emitted by the display panel to transmit through the window or the protection plate, and a photodetector for receiving the light reflected after transmitting through the window or the protection plate.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Han Yoo, Young Chan Kim, Kyung Tea Park, Yong-Suk Yeo
  • Publication number: 20190138123
    Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.
    Type: Application
    Filed: June 11, 2018
    Publication date: May 9, 2019
    Inventors: Keum Dong JUNG, Ki Seo Kim, II Nam Kim, Kyung Tea Park, Yun Ho Kim, Jae Kyoung Kim, Won Sang Park, Jong In Baek
  • Publication number: 20190095669
    Abstract: A fingerprint sensing device includes: a fingerprint sensor including scan lines and initialization lines extending in a first direction and arranged in a second direction, sensing lines extending in the second direction and arranged in the first direction, and sensing pixels connected to the scan lines, the initialization lines, and the sensing lines and disposed in a matrix configuration; a scan driver configured to apply an enable-level initialization signal to a-numbered sensing pixel rows while applying a disable-level initialization signal to b-numbered sensing pixel rows, and applying an enable-level scan signal to one sensing pixel row in the b-numbered sensing pixel rows; and a sensing driver configured to receive a sensing signal from the sensing pixel row to which the scan signal is applied through the sensing lines, wherein the a and b are positive numbers that are greater than 2.
    Type: Application
    Filed: February 7, 2018
    Publication date: March 28, 2019
    Inventors: Keum Dong JUNG, Ki Seo KIM, Il Nam KIM, Jae-Kyoung KIM, Kyung Tea PARK, Jong In BAEK
  • Publication number: 20190018516
    Abstract: A touch sensor includes: a substrate that includes active and non-active regions; driving cells disposed on the active region that extend in a first direction; sensing cells disposed on the active region that extend in a second direction that intersects the first direction; a first connection pattern that connects adjacent driving cells; a second connection pattern that connects adjacent sensing cells; and a touch driver disposed on the non-active region that includes thin film transistors that transmit a driving signal to each of the driving cells. The thin film transistor includes: a semiconductor layer; a gate electrode disposed on the semiconductor layer with a first insulating layer interposed therebetween; and source and drain electrodes connected to the semiconductor layer and spaced apart from each other. The first connection pattern is disposed in the same layer as at least one of the source or drain electrodes or the gate electrode.
    Type: Application
    Filed: January 12, 2018
    Publication date: January 17, 2019
    Inventors: IL NAM KIM, BYEONG HEE WON, KYUNG TEA PARK, WON SANG PARK
  • Publication number: 20190013367
    Abstract: A display device includes: a display panel including a display area for displaying an image; a window provided on an upper portion of the display panel; a protection plate provided on a lower portion of the display panel; and a photosensor provided at least one of between the display panel and the window and between the display panel and the protection plate, wherein the photosensor includes a shutter for controlling light emitted by the display panel to transmit through the window or the protection plate, and a photodetector for receiving the light reflected after transmitting through the window or the protection plate.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Byung Han YOO, Young Chan KIM, Kyung Tea PARK, Yong-Suk YEO
  • Patent number: 10096661
    Abstract: A display device includes: a display panel including a display area for displaying an image; a window provided on an upper portion of the display panel; a protection plate provided on a lower portion of the display panel; and a photosensor provided at least one of between the display panel and the window and between the display panel and the protection plate, wherein the photosensor includes a shutter for controlling light emitted by the display panel to transmit through the window or the protection plate, and a photodetector for receiving the light reflected after transmitting through the window or the protection plate.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: October 9, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Han Yoo, Young Chan Kim, Kyung Tea Park, Yong-Suk Yeo
  • Publication number: 20180210578
    Abstract: A touch sensor includes a substrate, a base layer, and sensor pixels. The base layer has first patterns arranged on the substrate and second patterns coupled between the first patterns. The sensor pixels are disposed on the first patterns and configured to sense a touch of a user depending on a change in capacitance associated with a corresponding sensor pixel. A computer mouse incorporating touch sensors also is disclosed.
    Type: Application
    Filed: January 24, 2018
    Publication date: July 26, 2018
    Inventors: Byeong Hee Won, Mu Gyeom Kim, Kyung Tea Park, Eun Jin Sung
  • Publication number: 20180211077
    Abstract: A security device includes a door handle unit disposed on a door body, a cover layer including a touch sensor and covering the door handle unit, a door locking unit which controls a locking of the door body. The touch sensor may include a plurality of sensor pixels, each including a sensor electrode which forms a second capacitor with a hand of a user when a touch occurs thereon by the user. The touch sensor may generate touch information based on a change in capacitance of the second capacitor corresponding to the touch.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 26, 2018
    Inventors: Byung Han Yoo, Ki Seo Kim, Jae Kyoung Kim, Kyung Tea Park, Won Sang Park, Jong In Baek, Byeong Hee Won
  • Patent number: 10001637
    Abstract: An electrowetting display device and manufacturing method thereof. The manufacturing method comprises forming pixel electrodes on a substrate, forming an insulation layer on the pixel electrodes, applying light through a mask to expose portions of the insulation layer, developing the insulation layer to at least partially remove the exposed portions of the insulation layer, wherein the developing forms a water repellent layer on the pixel electrodes and partitioning walls on the water repellent layer, and forming an oil layer between the partitioning walls and on the water repellent layer. The water repellent layer and the sides of the partitioning walls are hydrophobic. Upper surfaces of the partitioning walls are hydrophilic. The partition walls are thicker than the water repellent layer.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 19, 2018
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Kyung Tea Park, Suk-Won Jung
  • Publication number: 20180060641
    Abstract: A display device includes a substrate, display elements, a window, and a photo sensor array. The substrate includes a display area and a non-display area. The display elements overlap the display area. The window is disposed on the substrate. The photo sensor array is disposed between the substrate and the window. The photo sensor array is configured to sense three-dimensional pattern information (e.g., epidermal ridge information) of a user via light reflected from a touch input of the user. One or more of the display elements is configured to illuminate a contact area of the touch input with the light.
    Type: Application
    Filed: August 21, 2017
    Publication date: March 1, 2018
    Inventors: Young Chan KIM, Il Nam KIM, Kyung Tea PARK, Byung Han YOO, Tae Hee LEE
  • Publication number: 20170133441
    Abstract: A display device includes: a display panel including a display area for displaying an image; a window provided on an upper portion of the display panel; a protection plate provided on a lower portion of the display panel; and a photosensor provided at least one of between the display panel and the window and between the display panel and the protection plate, wherein the photosensor includes a shutter for controlling light emitted by the display panel to transmit through the window or the protection plate, and a photodetector for receiving the light reflected after transmitting through the window or the protection plate.
    Type: Application
    Filed: July 26, 2016
    Publication date: May 11, 2017
    Inventors: Byung Han YOO, Young Chan KIM, Kyung Tea PARK, Yong-Suk YEO
  • Patent number: 9575241
    Abstract: A tiled display is disclosed herein. The tiled display includes: a plurality of unit display units, wherein each of the unit display units includes: a panel assembly including a curved surface part of which both ends are curved surfaces; a light transmitting member disposed in a transparent plate shape and covering the curved surface part of the panel assembly; and a light guide member including a recess part recessed at one side thereof where the light guide member is combined with the light transmitting member, positioned adjacent to the curved surface part of the panel assembly, and positioned toward a direction in which an image is displayed from the panel assembly.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: February 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kyung Tea Park
  • Publication number: 20160238785
    Abstract: A tiled display is disclosed herein. The tiled display includes: a plurality of unit display units, wherein each of the unit display units includes: a panel assembly including a curved surface part of which both ends are curved surfaces; a light transmitting member disposed in a transparent plate shape and covering the curved surface part of the panel assembly; and a light guide member including a recess part recessed at one side thereof where the light guide member is combined with the light transmitting member, positioned adjacent to the curved surface part of the panel assembly, and positioned toward a direction in which an image is displayed from the panel assembly.
    Type: Application
    Filed: June 24, 2015
    Publication date: August 18, 2016
    Inventor: Kyung Tea PARK
  • Patent number: 9287436
    Abstract: A display device includes: a first substrate; a photo transistor on the first substrate; and a switching transistor connected to the photo transistor. The photo transistor includes a light blocking film on the first substrate, a first gate electrode on the light blocking film and in contact with the light blocking film, a first semiconductor layer on the first gate electrode and overlapping the light blocking film, and a first source electrode and a first drain electrode on the first semiconductor layer. The switching transistor includes a second gate electrode on the first substrate, a second semiconductor layer on the second gate electrode and overlapping the second gate electrode, and a second source electrode and a second drain electrode on the second semiconductor layer. The first semiconductor layer and the second semiconductor layer are at a same layer of the display device, and each includes crystalline silicon germanium.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 15, 2016
    Assignees: SAMSUNG DISPLAY CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, ULSAN COLLEGE INDUSTRY COOPERATION
    Inventors: Sang Youn Han, Cheol Kyu Kim, Jun Ho Song, Sung Hoon Yang, Kyung Tea Park, Seung Mi Seo, Suk Won Jung, Do Young Kim, Sun Jo Kim, Hyung Jun Kim
  • Patent number: 9252285
    Abstract: A method of manufacturing a display substrate includes forming a gate electrode on a base substrate, forming an active pattern which includes an oxide semiconductor and overlaps with the gate electrode, forming an etch stopper which partially covers the active pattern, and performing a plasma treatment process to promote a reduction reaction to portions of the active pattern exposed by the etch stopper, thereby forming a source electrode and a drain electrode.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: February 2, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Seong Seo, Sung-Hoon Yang, Tae-Young Ahn, Sang-Wook Lee, Jung-Yun Jo, Heon-Sik Ha, Jin-Ho Hwang, Kyung-Tea Park, Jun-Mo Im
  • Publication number: 20150021592
    Abstract: A method of manufacturing a display substrate includes forming a gate electrode on a base substrate, forming an active pattern which includes an oxide semiconductor and overlaps with the gate electrode, forming an etch stopper which partially covers the active pattern, and performing a plasma treatment process to promote a reduction reaction to portions of the active pattern exposed by the etch stopper, thereby forming a source electrode and a drain electrode.
    Type: Application
    Filed: April 10, 2014
    Publication date: January 22, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ki-Seong SEO, Sung-Hoon YANG, Tae-Young AHN, Sang-Wook LEE, Jung-Yun JO, Heon-Sik HA, Jin-Ho HWANG, Kyung-Tea PARK, Jun-Mo IM
  • Publication number: 20140192287
    Abstract: A display device includes a display panel including a transistor and a backlight unit providing light to the display panel. The transistor includes a transparent substrate that the backlight unit faces. A gate electrode having a first width is disposed on the transparent substrate. A gate insulating layer, having a barrier layer, is disposed on the gate electrode and the transparent substrate. A semiconductor layer is disposed on the gate insulating layer. The semiconductor layer has a second width greater than the first width.
    Type: Application
    Filed: November 8, 2013
    Publication date: July 10, 2014
    Applicant: Samsung Display Co., Ltd
    Inventors: Sang Youn HAN, Kyung Tea Park, Cheol Kyu Kim, Sung Hoon Yang, Sang Hyun Jeon, Eun Jeong Cho
  • Publication number: 20140021518
    Abstract: A display device includes: a first substrate; a photo transistor on the first substrate; and a switching transistor connected to the photo transistor. The photo transistor includes a light blocking film on the first substrate, a first gate electrode on the light blocking film and in contact with the light blocking film, a first semiconductor layer on the first gate electrode and overlapping the light blocking film, and a first source electrode and a first drain electrode on the first semiconductor layer. The switching transistor includes a second gate electrode on the first substrate, a second semiconductor layer on the second gate electrode and overlapping the second gate electrode, and a second source electrode and a second drain electrode on the second semiconductor layer. The first semiconductor layer and the second semiconductor layer are at a same layer of the display device, and each includes crystalline silicon germanium.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 23, 2014
    Applicants: SAMSUNG DISPLAY CO., LTD., ULSAN COLLEGE INDUSTRY COOPERATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Sang Youn HAN, Cheol Kyu KIM, Jun Ho SONG, Sung Hoon YANG, Kyung Tea PARK, Seung Mi SEO, Suk Won JUNG, Do Young KIM, Sun Jo KIM, Hyung Jun KIM
  • Publication number: 20140022622
    Abstract: An electrowetting display device and manufacturing method thereof. The manufacturing method comprises forming pixel electrodes on a substrate, forming an insulation layer on the pixel electrodes, applying light through a mask to expose portions of the insulation layer, developing the insulation layer to at least partially remove the exposed portions of the insulation layer, wherein the developing forms a water repellent layer on the pixel electrodes and partitioning walls on the water repellent layer, and forming an oil layer between the partitioning walls and on the water repellent layer. The water repellent layer and the sides of the partitioning walls are hydrophobic. Upper surfaces of the partitioning walls are hydrophilic. The partition walls are thicker than the water repellent layer.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 23, 2014
    Inventors: Kyung Tea Park, Suk-Won Jung