Patents by Inventor Kang Heo

Kang Heo 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: 20250099786
    Abstract: Embodiments relate to a radiation imaging device and a radiation imaging system, and more particularly, to a radiation imaging device and a radiation imaging system capable of monitoring, in real time, a radiation profile, synchronizing radiation irradiation and radiographic images, and removing noise signals in the case of treating a patient or the like by using radiation.
    Type: Application
    Filed: September 26, 2024
    Publication date: March 27, 2025
    Inventors: Kang HEO, Doo Ho KIM
  • Patent number: 12183225
    Abstract: A display apparatus includes a base substrate including a display region in which an image is displayed and a peripheral region that is a non-display region adjacent to the display region, a plurality of pixels disposed on the base substrate in the display region, each of the pixels including a thin film transistor that includes an oxide semiconductor pattern, a data driver disposed in the peripheral region and configured to provide a data voltage to the pixels, and a plurality of test patterns disposed on the base substrate in the peripheral region, each of the test patterns including a test thin film transistor that includes a test oxide semiconductor pattern.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: December 31, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Cha-dong Kim, Youngdae Kim, Hyunae Kim, Chongsup Chang, Eui-kang Heo
  • Publication number: 20240237479
    Abstract: A display device includes a thin-film transistor, an interlayer insulating layer on the thin-film transistor, a source electrode, a drain electrode, and an auxiliary electrode on the interlayer insulating layer, each of the source electrode, the drain electrode, and the auxiliary electrode including a main conductive layer and a sub conductive layer on the main conductive layer, and a via insulating layer on the source electrode, the drain electrode and the auxiliary electrode, the via insulating layer covering the source electrode and the drain electrode and exposing a portion of an upper surface of the second conductive layer of the auxiliary electrode. The via insulating layer includes a first part spaced apart from the upper surface of the second conductive layer of the auxiliary electrode, and the second part adjacent to side surfaces of the main conductive layer and the sub conductive layer of the auxiliary electrode.
    Type: Application
    Filed: May 24, 2023
    Publication date: July 11, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Eui Kang HEO, Chong Sup CHANG
  • Publication number: 20240138231
    Abstract: A display device includes a thin-film transistor, an interlayer insulating layer on the thin-film transistor, a source electrode, a drain electrode, and an auxiliary electrode on the interlayer insulating layer, each of the source electrode, the drain electrode, and the auxiliary electrode including a main conductive layer and a sub conductive layer on the main conductive layer, and a via insulating layer on the source electrode, the drain electrode and the auxiliary electrode, the via insulating layer covering the source electrode and the drain electrode and exposing a portion of an upper surface of the second conductive layer of the auxiliary electrode. The via insulating layer includes a first part spaced apart from the upper surface of the second conductive layer of the auxiliary electrode, and the second part adjacent to side surfaces of the main conductive layer and the sub conductive layer of the auxiliary electrode.
    Type: Application
    Filed: May 23, 2023
    Publication date: April 25, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Eui Kang HEO, Chong Sup CHANG
  • Patent number: 11967585
    Abstract: A display device includes a substrate, a first electrode, and a second electrode spaced from each other on the substrate, a first insulating layer on the first electrode, a first light emitting element between the first electrode and the second electrode, a second light emitting element on the first insulating layer and spaced from the first light emitting element, and a second insulating layer on the first insulating layer and covering at least a portion of the second light emitting element, wherein the first insulating layer includes at least one first opening penetrating the first insulating layer to expose a portion of the first electrode, the second insulating layer includes at least one second opening penetrating the second insulating layer to expose a portion of the first insulating layer, the at least one first opening and the at least one second opening do not overlap each other.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: April 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bum Soo Kam, Eui Kang Heo
  • Patent number: 11917878
    Abstract: A display device includes: a first active pattern on a light blocking pattern; a second active pattern at a same layer as that of the first active pattern; a first insulating pattern on the first active pattern; a second insulating pattern on the first active pattern, the second insulating pattern being spaced from the first insulating pattern, and having a first contact hole exposing the first active pattern; a first gate electrode on the first insulating pattern; a second gate electrode at a same layer as that of the first gate electrode, and overlapping with the second active pattern; a first etch stopper on the second insulating pattern, and having a second contact hole connected to the first contact hole; and a first electrode on the first etch stopper, the first electrode contacting the light blocking pattern and the first active pattern through the first and second contact holes.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: February 27, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngseok Baek, Sangjin Park, Chongsup Chang, Eui Kang Heo
  • Patent number: 11811010
    Abstract: A display device includes a substrate, a first electrode and a second electrode which are spaced apart from each other on the substrate, a first insulating pattern on the substrate to cover at least a portion of each of the first electrode and the second electrode, a light emitting element between the first electrode and the second electrode on the first insulating pattern, a first contact electrode in contact with the first electrode and one end portion of the light emitting element, a second contact electrode in contact with the second electrode and another end portion of the light emitting element, and a second insulating pattern on the light emitting element and of which at least a portion is in contact with each of the first contact electrode and the second contact electrode, wherein the second insulating pattern includes a first upper surface not in contact with the first contact electrode or the second contact electrode.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: November 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chong Sup Chang, Hyun Ae Kim, Eui Kang Heo
  • Patent number: 11798954
    Abstract: A display includes a substrate, a first electrode base layer and a second electrode base layer spaced from each other on the substrate, a first electrode on the first electrode base layer and a second electrode on the second electrode base layer, a first inner bank between the first electrode base layer and the first electrode and a second inner bank between the second electrode base layer and the second electrode, and a light emitting element between the first electrode and the second electrode, at least one end portion of the light emitting element being electrically connected to the first electrode or the second electrode, wherein a side surface of one end portion of each of the first and second electrode base layers is at the same line as a side surface of an end portion of a corresponding one of the first and second electrodes.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: October 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chong Sup Chang, Eui Kang Heo, Young Seok Baek, Ha Na Seo
  • Patent number: 11749709
    Abstract: A display device includes a substrate, a first inner bank and a second inner bank on the substrate and spaced apart from each other, a first electrode on the first inner bank and a second electrode on the second inner bank, and a light emitting element between the first inner bank and the second inner bank, the light emitting element being electrically coupled to the first electrode and the second electrode, wherein the first inner bank comprises a first side surface facing the second inner bank, the second inner bank comprises a second side surface facing the first side surface, and the first side surface and the second side surface are respectively recessed into the first inner bank and the second inner bank, to have a curved shape.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: September 5, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eui Kang Heo, Chong Sup Chang
  • Publication number: 20230240106
    Abstract: A display device includes: a first active pattern on a light blocking pattern; a second active pattern at a same layer as that of the first active pattern; a first insulating pattern on the first active pattern; a second insulating pattern on the first active pattern, the second insulating pattern being spaced from the first insulating pattern, and having a first contact hole exposing the first active pattern; a first gate electrode on the first insulating pattern; a second gate electrode at a same layer as that of the first gate electrode, and overlapping with the second active pattern; a first etch stopper on the second insulating pattern, and having a second contact hole connected to the first contact hole; and a first electrode on the first etch stopper, the first electrode contacting the light blocking pattern and the first active pattern through the first and second contact holes.
    Type: Application
    Filed: March 30, 2023
    Publication date: July 27, 2023
    Inventors: YOUNGSEOK BAEK, SANGJIN PARK, CHONGSUP CHANG, EUI KANG HEO
  • Patent number: 11706944
    Abstract: A method of manufacturing a display device may include sequentially forming a first conductive layer, a second conductive layer including copper (Cu), a third conductive layer, and a fourth conductive layer on a substrate, patterning the first conductive layer, the second conductive layer, the third conductive layer, and the fourth conductive layer together to form a conductive pattern including a first layer, a second layer, a third layer, and a fourth layer sequentially on the substrate, removing the fourth layer of the conductive pattern, forming a protective layer covering at least a sidewall of the conductive layer on the substrate, and forming a display element on the protective layer.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: July 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Seok Baek, Chong Sup Chang, Hana Seo, Eui Kang Heo
  • Publication number: 20230187583
    Abstract: A pixel includes: an emission area and a non-emission area; a via layer including a lower surface and an upper surface, the via layer including a first part having a first thickness, and a second part having a second thickness; a first alignment electrode and a second alignment electrode on the via layer and spaced from each other; an insulating layer on the via layer, the first alignment electrode, and the second alignment electrode, the insulating layer having a planar surface; a first electrode and a second electrode in the emission area and spaced from each other; and light emitting elements on the planer surface of the insulating layer in the emission area, and electrically connected to the first electrode and the second electrode. The first and second alignment electrodes may be on the second part of the via layer and overlap the second part of the via layer.
    Type: Application
    Filed: October 18, 2022
    Publication date: June 15, 2023
    Inventors: Young Seok BAEK, Ha Na SEO, Chong Sup CHANG, Eui Kang HEO
  • Publication number: 20230122457
    Abstract: A display device may include a conductive pattern disposed on a substrate. A passivation layer may be disposed on the conductive pattern. A first shielding electrode and a second shielding electrode that may be disposed on the passivation layer may be spaced apart from each other. A first electrode may be disposed on the first shielding electrode. A second electrode may be disposed on the second shielding electrode. A light emitting element may be electrically connected between the first electrode and the second electrode. A first distance between the first shielding electrode and the second shielding electrode may be less than a second distance between the first electrode and the second electrode.
    Type: Application
    Filed: June 3, 2022
    Publication date: April 20, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Eui Kang HEO, Young Seok BAEK, Ha Na SEO, Chong Sup CHANG
  • Patent number: 11626471
    Abstract: A display device includes: a first active pattern on a light blocking pattern; a second active pattern at a same layer as that of the first active pattern; a first insulating pattern on the first active pattern; a second insulating pattern on the first active pattern, the second insulating pattern being spaced from the first insulating pattern, and having a first contact hole exposing the first active pattern; a first gate electrode on the first insulating pattern; a second gate electrode at a same layer as that of the first gate electrode, and overlapping with the second active pattern; a first etch stopper on the second insulating pattern, and having a second contact hole connected to the first contact hole; and a first electrode on the first etch stopper, the first electrode contacting the light blocking pattern and the first active pattern through the first and second contact holes.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngseok Baek, Sangjin Park, Chongsup Chang, Eui Kang Heo
  • Patent number: 11621305
    Abstract: A display device includes a first display substrate and a second display substrate. The first display substrate includes a first base, a first electrode disposed on the first base, a second electrode spaced apart from the first electrode, and a light emitting element disposed between the first electrode and the second electrode. The second display substrate faces the first display substrate and is configured to receive light emitted from the light emitting element. The second display substrate includes a second base, a first color filter disposed on a surface of the second base, and a first wavelength conversion pattern disposed on the first color filter. The first wavelength conversion pattern includes a first surface facing the first display substrate, and a second surface facing the first surface and the first color filter. The first surface includes a curved surface portion recessed toward the second surface.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: April 4, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Jin Park, Hyun Ae Kim, Hee Ra Kim, Ha Na Seo, Chong Sup Chang, Eui Kang Heo
  • Publication number: 20230061844
    Abstract: A display device includes a display area and a pad area, a first electrode and a second electrode disposed on a substrate in the display area, the first electrode and the second electrode being spaced apart from each other, a transistor disposed on the substrate in the display area, the transistor being electrically connected to the first electrode, and including a first transistor electrode and a second transistor electrode; a light emitting element disposed on the first electrode and the second electrode; and a pad structure disposed on the substrate in the pad area, the pad structure including a first pad pattern and a second pad pattern which is disposed on the first pad pattern and is electrically connected to the first pad pattern.
    Type: Application
    Filed: March 29, 2022
    Publication date: March 2, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Chong Sup CHANG, Young Seok BAEK, Ha Na SEO, Eui Kang HEO
  • Patent number: 11450268
    Abstract: A display device includes a substrate including a display area and a non-display area around the display area; and a display element layer on the substrate. The display element layer may include first and second electrodes extending in a first direction and spaced apart from each other in a second direction that is different from the first direction; a first light emitting element electrically coupled to the first and second electrodes; a first dummy electrode extending in the first direction and spaced apart from the first and second electrodes; second dummy electrodes spaced apart from each other in the first direction and spaced apart from the first electrode, the second electrode, and the first dummy electrode; and a second light emitting element electrically coupled to the first dummy electrode and the second dummy electrodes.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chong Sup Chang, Eui Kang Heo, Young Seok Baek, Ha Na Seo
  • Publication number: 20220263002
    Abstract: A display device includes a substrate, a first electrode and a second electrode which are spaced apart from each other on the substrate, a first insulating pattern on the substrate to cover at least a portion of each of the first electrode and the second electrode, a light emitting element between the first electrode and the second electrode on the first insulating pattern, a first contact electrode in contact with the first electrode and one end portion of the light emitting element, a second contact electrode in contact with the second electrode and another end portion of the light emitting element, and a second insulating pattern on the light emitting element and of which at least a portion is in contact with each of the first contact electrode and the second contact electrode, wherein the second insulating pattern includes a first upper surface not in contact with the first contact electrode or the second contact electrode.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 18, 2022
    Inventors: Chong Sup CHANG, Hyun Ae KIM, Eui Kang HEO
  • Publication number: 20220238598
    Abstract: A display device includes a substrate, a first inner bank and a second inner bank on the substrate and spaced apart from each other, a first electrode on the first inner bank and a second electrode on the second inner bank, and a light emitting element between the first inner bank and the second inner bank, the light emitting element being electrically coupled to the first electrode and the second electrode, wherein the first inner bank comprises a first side surface facing the second inner bank, the second inner bank comprises a second side surface facing the first side surface, and the first side surface and the second side surface are respectively recessed into the first inner bank and the second inner bank, to have a curved shape.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Inventors: Eui Kang HEO, Chong Sup CHANG
  • Patent number: 11393798
    Abstract: A display device includes a first electrode and a second electrode disposed on a substrate and spaced apart from each other, a first light emitting element disposed between the first electrode and the second electrode, a second light emitting element disposed on the first electrode and spaced apart from the first light emitting element, and an insulating layer disposed on the first electrode and overlapping the second light emitting element. The insulating layer includes at least one contact hole which penetrates the insulating layer to expose a part of the first electrode.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eui Kang Heo, Chong Sup Chang