Patents by Inventor Jae Kyoung Kim

Jae Kyoung Kim 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: 10565421
    Abstract: A fingerprint sensor includes a sensor substrate. A plurality of sensor pixels is configured to sense a change in capacitance corresponding to a touch of a user. Each of the plurality of sensor pixels includes a sensor electrode. A sensor protective layer is configured to protect the sensor substrate and the plurality of sensor pixels. The sensor protective layer includes a first region disposed over the sensor electrode, and a second region. The first region has a first permittivity. The second region has a second permittivity lower than the first permittivity.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Kyoung Kim, Ki Seo Kim, Won Sang Park, Jong In Baek
  • Patent number: 10558836
    Abstract: A sensor pixel includes: a reference capacitor including a first end connected to a driving signal line and a second end connected to a first node; a touch capacitor including one electrode connected to the first node, wherein capacitance of the touch capacitor changes by touching of an external object; a first transistor including a first end connected to an initialization voltage line, a second end connected to the first node, and a control end connected to an initialization line; a second transistor including a first end for receiving a common voltage, a second end for outputting a current generated based on the common voltage, and a control end connected to the first node; and a third transistor including a first end connected to the second end of the second transistor, a second end connected to a sensing line, and a control end connected to a scan line.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: February 11, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Seo Kim, Jae-Kyoung Kim, Byung Han Yoo
  • 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: 20190012504
    Abstract: A sensor pixel includes: a reference capacitor including a first end connected to a driving signal line and a second end connected to a first node; a touch capacitor including one electrode connected to the first node, wherein capacitance of the touch capacitor changes by touching of an external object; a first transistor including a first end connected to an initialization voltage line, a second end connected to the first node, and a control end connected to an initialization line; a second transistor including a first end for receiving a common voltage, a second end for outputting a current generated based on the common voltage, and a control end connected to the first node; and a third transistor including a first end connected to the second end of the second transistor, a second end connected to a sensing line, and a control end connected to a scan line.
    Type: Application
    Filed: January 19, 2018
    Publication date: January 10, 2019
    Inventors: Ki Seo KIM, Jae-Kyoung KIM, Byung Han YOO
  • Publication number: 20180276442
    Abstract: A fingerprint sensor according to an exemplary embodiment of the present inventive concept includes a sensor substrate; a plurality of sensor pixels sensing a capacitance change corresponding to a touch of a user, wherein each of the sensor pixels includes a sensor electrode; and a sensor protection layer disposed on the sensor substrate and the plurality of sensor pixels, wherein the sensor protection layer may include a first region having a first permittivity and a second region having a second permittivity less than the first permittivity.
    Type: Application
    Filed: February 28, 2018
    Publication date: September 27, 2018
    Inventors: Jae Kyoung KIM, Ki Seo KIM, Won Sang PARK, Jong In BAEK
  • Publication number: 20180239940
    Abstract: A fingerprint sensor includes a sensor substrate. A plurality of sensor pixels is configured to sense a change in capacitance corresponding to a touch of a user. Each of the plurality of sensor pixels includes a sensor electrode. A sensor protective layer is configured to protect the sensor substrate and the plurality of sensor pixels. The sensor protective layer includes a first region disposed over the sensor electrode, and a second region. The first region has a first permittivity. The second region has a second permittivity lower than the first permittivity.
    Type: Application
    Filed: November 7, 2017
    Publication date: August 23, 2018
    Inventors: Jae Kyoung Kim, Ki Seo Kim, Won Sang Park, Jong In Baek
  • Publication number: 20180225547
    Abstract: A sensor pixel includes a sensor electrode, a first transistor including a gate electrode connected to the sensor electrode and which controls a current output provided to an output line, a second transistor connected to a first voltage line and a first transistor, a third transistor connected to the first transistor and the output line, and a compensator unit which compensates a threshold voltage of the first transistor.
    Type: Application
    Filed: November 3, 2017
    Publication date: August 9, 2018
    Inventors: Ki Seo KIM, Jae Kyoung KIM, Won Sang PARK, Byeong Hee WON, Byung Han YOO
  • Publication number: 20180210603
    Abstract: A touch sensor includes sensor pixels which provide output currents which change in response to a touch made by a user, a sensor scan driver coupled to the sensor pixels through sensor scan lines and supplies sensor scan signals to the sensor pixels, and a read-out circuit coupled to the sensor pixels through output lines, and senses a touch using the output currents. The sensor scan driver changes a scheme for supplying the sensor scan signals depending on a fingerprint sensing mode and a touch sensing mode.
    Type: Application
    Filed: November 30, 2017
    Publication date: July 26, 2018
    Inventors: Byeong Hee WON, Il Nam KIM, Jae Kyoung KIM, Jong In BAEK
  • 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: 9984609
    Abstract: A display device is disclosed. In one aspect, the display device includes an image source configured to generate image data comprising red, green, and blue data and a color-weakness determiner configured to generate color vision deficiency data comprising color-weakness information. The device also includes a color-weakness compensator configured to generate compensation data based on the image data and the color vision deficiency data and a display portion comprising a plurality of pixels each configured to emit light based on the compensation data. Each of the pixels includes first and second sub-pixels configured to emit light having a light-emitting color based on an electric field applied to the first or second sub-pixel and a third sub-pixel configured to emit light having a predetermined light-emitting color.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: May 29, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kiseo Kim, Gee-Bum Kim, Jae-Kyoung Kim, Rangkyun Mok
  • Patent number: 9941218
    Abstract: A display apparatus is provided including a display panel displaying an image, and a driving chip including a front surface and a rear surface provided with a first marking code, the driving chip being electrically connected with the display panel. The display panel includes an upper substrate, and a lower substrate located facing the upper substrate to include a second marking code, and including a first surface and a second surface facing the first surface. The driving chip is located on the second surface such that a rear surface thereof is closer to the second surface than to the front surface thereof, and wherein the second marking code is provided on the second surface.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: April 10, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jae-kyoung Kim
  • Publication number: 20170371462
    Abstract: A touch sensor including a substrate and a plurality of sensor pixels positioned on the substrate and connected to sensor scan lines and output lines. At least one of the sensor pixels is connected to an ith sensor scan line and a jth output line (where i is an integer of no less than 2 and j is a natural number) and includes a sensor electrode, a first transistor having a gate electrode connected to the sensor electrode to control a current output through the jth output line, a second transistor having a gate electrode connected to the ith sensor scan line and connected between a reference voltage line and the first transistor, and a capacitor electrode forming a first capacitor with the sensor electrode and connected to the ith sensor scan line.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 28, 2017
    Inventors: Ki Seo KIM, Jae Kyoung KIM
  • Publication number: 20170276944
    Abstract: A head-mounted device includes a case including a body and a cover covering the body, the case having a display panel accommodating space between the body and the cover, an optical system in the body facing the cover, and a filter in the body, the filter being spaced apart from the optical system in a first direction corresponding to a thickness direction of the optical system and being configured to repeatedly move in a direction.
    Type: Application
    Filed: January 25, 2017
    Publication date: September 28, 2017
    Inventors: Kiseo Kim, Jae-kyoung Kim
  • Publication number: 20170261656
    Abstract: A head-mounted display device includes a display panel including a plurality of pixels for displaying an image, a filter on the display panel, and including a scattering layer for scattering the image to generate a scattered image, the scattering layer including a base having a first refractive index, and scattering particles mixed with the base and having a second refractive index that is greater than the first refractive index, and an optical system on the filter for magnifying the scattered image.
    Type: Application
    Filed: January 6, 2017
    Publication date: September 14, 2017
    Inventors: Jae-kyoung Kim, Seockhwan Kang, Kiseo Kim, Wonsang Park
  • Publication number: 20170199442
    Abstract: A head-mounted device includes a case part including a body part, a cover part adapted to cover at least a portion of the body part, and a space for mounting a display panel between the body part and the cover part. The optical system is positioned in the body part to face the cover part and has a focal point that has a position which is periodically changed.
    Type: Application
    Filed: August 30, 2016
    Publication date: July 13, 2017
    Inventors: Kiseo Kim, Jae-kyoung Kim, Seockhwan Kang
  • Publication number: 20170092593
    Abstract: A display apparatus is provided including a display panel displaying an image, and a driving chip including a front surface and a rear surface provided with a first marking code, the driving chip being electrically connected with the display panel. The display panel includes an upper substrate, and a lower substrate located facing the upper substrate to include a second marking code, and including a first surface and a second surface facing the first surface. The driving chip is located on the second surface such that a rear surface thereof is closer to the second surface than to the front surface thereof, and wherein the second marking code is provided on the second surface.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 30, 2017
    Inventor: Jae-kyoung Kim
  • Patent number: 9536931
    Abstract: An organic light emitting diode (OLED) display with an improved light efficiency and a method of manufacturing the OLED display are disclosed. The OLED display includes a substrate, an insulation layer on the substrate and having concave portions, first electrodes on the insulation layer, pixel defining layers (PDLs) on the insulation layer and configured to define the first electrodes into pixels, organic light emitting layers on the first electrodes as defined by the pixels, and a second electrode on the organic light emitting layers. Each of the concave portions includes a bottom surface and inclined parts. Each of the first electrodes is on the bottom surface and the inclined parts of one of the concave portions. Embossings are on a part of a surface of the PDLs.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: January 3, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Il-Nam Kim, Won-Sang Park, Min-Woo Kim, Jae-Kyoung Kim, Hae-Yun Choi
  • Patent number: 9520452
    Abstract: In an aspect, an organic light-emitting display apparatus is provided, including: an insulating layer having a inclined structure; a first electrode disposed on the insulating layer; a selective wavelength transparent layer disposed on the first electrode; a pixel defined layer disposed on the insulating layer and the first electrode and defining an emissive region and a non-emissive region; an organic emissive layer disposed on the first electrode; and a second electrode disposed on the organic emissive layer.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: December 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Jae-Kyoung Kim
  • Publication number: 20160217723
    Abstract: A display device is disclosed. In one aspect, the display device includes an image source configured to generate image data comprising red, green, and blue data and a color-weakness determiner configured to generate color vision deficiency data comprising color-weakness information. The device also includes a color-weakness compensator configured to generate compensation data based on the image data and the color vision deficiency data and a display portion comprising a plurality of pixels each configured to emit light based on the compensation data. Each of the pixels includes first and second sub-pixels configured to emit light having a light-emitting color based on an electric field applied to the first or second sub-pixel and a third sub-pixel configured to emit light having a predetermined light-emitting color.
    Type: Application
    Filed: August 14, 2015
    Publication date: July 28, 2016
    Inventors: Kiseo Kim, Gee-Bum Kim, Jae-Kyoung Kim, Rangkyun Mok