Patents by Inventor Deok Hwa WOO

Deok Hwa WOO 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: 20230397472
    Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 7, 2023
    Inventors: YUN HO KIM, Keum Dong Jung, Jin Oh Kwag, Won Sang Park, Deok Hwa Woo, Bong Hyun You, Chul Kim, Seung Hyun Moon, Jun Hee Moon, Hee Chul Hwang
  • Patent number: 11758793
    Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: September 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yun Ho Kim, Keum Dong Jung, Jin Oh Kwag, Won Sang Park, Deok Hwa Woo, Bong Hyun You, Chul Kim, Seung Hyun Moon, Jun Hee Moon, Hee Chul Hwang
  • Patent number: 11488412
    Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Dae Lee, Seung Hyun Moon, Dong Wook Yang, Hee Chul Hwang, Deok Hwa Woo, Young Eun Lee
  • Patent number: 11423691
    Abstract: A display device includes a display panel including a plurality of pixels configured to display an image, a photo sensor on one surface of the display panel to sense light, and a fingerprint detector configured to control a fake determination image pattern of a fingerprint sensing area of the display panel configured to sense a fingerprint, and to perform fingerprint authentication and fake fingerprint determination, based on a sensing signal supplied from the photo sensor.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: August 23, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Hyun Moon, Yun Ho Kim, Jin Oh Kwag, Won Sang Park, Bong Hyun You, Keum Dong Jung, Chui Kim, Jun Hee Moon, Deok Hwa Woo, Hee Chui Hwang
  • Publication number: 20210365661
    Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 25, 2021
    Inventors: Hyun Dae LEE, Seung Hyun MOON, Dong Wook YANG, Hee Chul HWANG, Deok Hwa WOO, Young Eun LEE
  • Patent number: 11080507
    Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 3, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Dae Lee, Seung Hyun Moon, Dong Wook Yang, Hee Chul Hwang, Deok Hwa Woo, Young Eun Lee
  • Publication number: 20210142029
    Abstract: A display device includes a display panel including a plurality of pixels configured to display an image, a photo sensor on one surface of the display panel to sense light, and a fingerprint detector configured to control a fake determination image pattern of a fingerprint sensing area of the display panel configured to sense a fingerprint, and to perform fingerprint authentication and fake fingerprint determination, based on a sensing signal supplied from the photo sensor.
    Type: Application
    Filed: July 13, 2020
    Publication date: May 13, 2021
    Inventors: Seung Hyun MOON, Yun Ho KIM, Jin Oh KWAG, Won Sang PARK, Bong Hyun YOU, Keum Dong JUNG, Chul KIM, Jun Hee MOON, Deok Hwa WOO, Hee Chul HWANG
  • Publication number: 20210073507
    Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 11, 2021
    Inventors: Yun Ho Kim, Keum Dong Jung, Jin Oh Kwag, Won Sang Park, Deok Hwa Woo, Bong Hyun You, Chul Kim, Seung Hyun Moon, Jun Hee Moon, Hee Chul Hwang
  • Publication number: 20210064839
    Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.
    Type: Application
    Filed: July 30, 2020
    Publication date: March 4, 2021
    Inventors: Hyun Dae LEE, Seung Hyun MOON, Dong Wook YANG, Hee Chul HWANG, Deok Hwa WOO, Young Eun LEE