Patents by Inventor Yeon-Hong Kim

Yeon-Hong 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: 12123903
    Abstract: A static electricity visualization apparatus capable of visually identifying a measured level of static electricity is provided.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: October 22, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Jun Ho Oh, Kwang Sup Kim, Jae Hong Kim, Kyung Hun Jang, Young Ho Park, Jong Min Lee, Yeon Chul Song, Sang Min Ha, Ji Hoon Yoo, Myeong Jun Lim
  • Publication number: 20240341132
    Abstract: A display device includes a substrate, a corrosion prevention layer on the substrate and including an inorganic material, a first conductive layer on the corrosion prevention layer and including aluminum or an aluminum alloy, a first insulating film on the first conductive layer, a semiconductor layer on the first insulating film and including a channel region of a transistor, a second insulating film on the semiconductor layer, and a second conductive layer on the second insulating film and including a barrier layer, which includes titanium, and a main conductive layer, which includes aluminum or an aluminum alloy, wherein the semiconductor layer includes an oxide semiconductor, and the barrier layer is between the semiconductor layer and the main conductive layer and overlaps the channel region of the transistor.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Yeon Hong KIM, Eun Hye KO, Eun Hyun KIM, Kyoung Won LEE, Sun Hee LEE, Jun Hyung LIM
  • Publication number: 20240292658
    Abstract: The present disclosure relates to a display device, more particularly, to a display device in which the number of contact holes may be reduced to improve space utilization of pixels, and the method for fabricating the same. According to an embodiment of the disclosure, the display device includes a first active layer, a first transistor connected to the first active layer, a pixel electrode connected to the first transistor, a second active layer including a material different from a material of the first active layer, and a second transistor connected to the second active layer. At least a portion of the second active layer is directly connected to at least a portion of the first active layer.
    Type: Application
    Filed: October 26, 2023
    Publication date: August 29, 2024
    Inventors: Jung Hoon LEE, Jong Beom KO, Yeon Hong KIM, Eun Hyun KIM, Sun Hee LEE, Hyun Mo LEE
  • Patent number: 12075665
    Abstract: A display device according to an embodiment includes: a first metal layer disposed on a substrate; a first insulating layer disposed on the first metal layer; a first transistor disposed on the first insulating layer and including a semiconductor layer; and a light-emitting device electrically connected to the first transistor, wherein the first metal layer includes a first portion with a first thickness and a second portion with a second thickness, the second thickness is greater than the first thickness, and the semiconductor layer is electrically connected to the first metal layer.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: August 27, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung Won Lee, Eun Hye Ko, Yeon Hong Kim, Eun Hyun Kim, Sun Hee Lee, Jun Hyung Lim
  • Patent number: 12016211
    Abstract: A display device includes a substrate, a corrosion prevention layer on the substrate and including an inorganic material, a first conductive layer on the corrosion prevention layer and including aluminum or an aluminum alloy, a first insulating film on the first conductive layer, a semiconductor layer on the first insulating film and including a channel region of a transistor, a second insulating film on the semiconductor layer, and a second conductive layer on the second insulating film and including a barrier layer, which includes titanium, and a main conductive layer, which includes aluminum or an aluminum alloy, wherein the semiconductor layer includes an oxide semiconductor, and the barrier layer is between the semiconductor layer and the main conductive layer and overlaps the channel region of the transistor.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: June 18, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeon Hong Kim, Eun Hye Ko, Eun Hyun Kim, Kyoung Won Lee, Sun Hee Lee, Jun Hyung Lim
  • Publication number: 20240162235
    Abstract: A display device includes: a substrate; a first semiconductor layer and a dummy semiconductor layer on the same layer on a surface of the substrate and comprising the same material as each other; a second semiconductor layer overlapping the dummy semiconductor layer in a direction perpendicular to the surface of the substrate, the first semiconductor layer and the second semiconductor layer comprising different materials from each other; a first transistor comprising the first semiconductor layer, a first source electrode, and a first drain electrode, the first source electrode and the first drain electrode being connected to the first semiconductor layer; a second transistor comprising the second semiconductor layer, a second source electrode, and a second drain electrode, the second source electrode and the second drain electrode being connected to the second semiconductor layer; and a light- emitting element connected to the first transistor.
    Type: Application
    Filed: November 15, 2023
    Publication date: May 16, 2024
    Inventors: Yeoung Keol WOO, Sang Wook LEE, Yeon Hong KIM, Yung Bin CHUNG
  • Publication number: 20240040920
    Abstract: A display device includes a light blocking layer positioned on a substrate and including a first portion and a second portion having a thickness greater than a thickness of the first portion; a buffer layer positioned above the light blocking layer; a semiconductor layer positioned over the buffer layer and including a source region, a channel region, and a drain region; a gate insulating layer positioned over the semiconductor layer; a gate electrode positioned over the gate insulating layer; an interlayer insulating layer positioned over the gate electrode, and including a first opening overlapping the second portion of the light blocking layer in a plan view and a second opening overlapping the source region of the semiconductor layer in a plan view; and a dummy gate electrode positioned on a side surface of the first opening.
    Type: Application
    Filed: June 28, 2023
    Publication date: February 1, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyoung Won LEE, Eun Hye KO, Yeon Hong KIM, Eun Hyun KIM, Sun Hee LEE
  • Patent number: 11825703
    Abstract: A display device includes a substrate, a first transistor including a channel on the substrate, a first electrode and a second electrode, and a gate electrode overlapping the channel of the first transistor, a first interlayer insulation layer on the first and second electrodes of the first transistor, a second transistor including a channel disposed on the first interlayer insulation layer, a first electrode and a second electrode of the second transistor, and a gate electrode that overlaps the channel of the second transistor, a first connection electrode disposed on the first interlayer insulation layer, and connected with the first electrode of the first transistor, a gate insulation layer disposed between the first interlayer insulation layer and the first connection electrode, and a second connection electrode that connects the first connection electrode and the first electrode of the second transistor.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jay Bum Kim, Myeong Ho Kim, Yeon Hong Kim, Kyoung Seok Son, Sun Hee Lee, Seung Jun Lee, Seung Hun Lee, Jun Hyung Lim
  • Publication number: 20230180545
    Abstract: A display device includes a substrate, a corrosion prevention layer on the substrate and including an inorganic material, a first conductive layer on the corrosion prevention layer and including aluminum or an aluminum alloy, a first insulating film on the first conductive layer, a semiconductor layer on the first insulating film and including a channel region of a transistor, a second insulating film on the semiconductor layer, and a second conductive layer on the second insulating film and including a barrier layer, which includes titanium, and a main conductive layer, which includes aluminum or an aluminum alloy, wherein the semiconductor layer includes an oxide semiconductor, and the barrier layer is between the semiconductor layer and the main conductive layer and overlaps the channel region of the transistor.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Inventors: Yeon Hong KIM, Eun Hye KO, Eun Hyun KIM, Kyoung Won LEE, Sun Hee LEE, Jun Hyung LIM
  • Patent number: 11569328
    Abstract: A display device includes a substrate, a corrosion prevention layer on the substrate and including an inorganic material, a first conductive layer on the corrosion prevention layer and including aluminum or an aluminum alloy, a first insulating film on the first conductive layer, a semiconductor layer on the first insulating film and including a channel region of a transistor, a second insulating film on the semiconductor layer, and a second conductive layer on the second insulating film and including a barrier layer, which includes titanium, and a main conductive layer, which includes aluminum or an aluminum alloy, wherein the semiconductor layer includes an oxide semiconductor, and the barrier layer is between the semiconductor layer and the main conductive layer and overlaps the channel region of the transistor.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: January 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeon Hong Kim, Eun Hye Ko, Eun Hyun Kim, Kyoung Won Lee, Sun Hee Lee, Jun Hyung Lim
  • Patent number: 11552144
    Abstract: A light emitting diode display device including: an organic light emitting diode including an anode electrode; a first transistor for providing a current to the anode electrode of the organic light emitting diode; a second transistor for transmitting a voltage to a gate electrode of the first transistor; a first capacitor for storing the voltage transmitted to the gate electrode of the first transistor; and a second capacitor disposed between a first electrode of the second transistor and a data line, wherein the first electrode of the second transistor is directly connected to the anode electrode of the organic light emitting diode.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: January 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Ho Park, Yeon Hong Kim, Jin Yeong Kim, Jin Taek Kim, Soo Hyun Moon, Mi Jin Park, Tae Hoon Yang, Sung-Jin Lee, Jin Woo Lee, Kwang Taek Hong
  • Publication number: 20220140029
    Abstract: A light emitting diode display device including: an organic light emitting diode including an anode electrode; a first transistor for providing a current to the anode electrode of the organic light emitting diode; a second transistor for transmitting a voltage to a gate electrode of the first transistor; a first capacitor for storing the voltage transmitted to the gate electrode of the first transistor; and a second capacitor disposed between a first electrode of the second transistor and a data line, wherein the first electrode of the second transistor is directly connected to the anode electrode of the organic light emitting diode,
    Type: Application
    Filed: January 20, 2022
    Publication date: May 5, 2022
    Inventors: Sang Ho PARK, Yeon Hong Kim, Jin Yeong Kim, Jin Taek Kim, Soo Hyun Moon, Mi Jin Park, Tae Hoon Yang, Sung-Jin Lee, Jin Woo Lee, Kwang Taek Hong
  • Publication number: 20220140032
    Abstract: A display device according to an embodiment includes: a first metal layer disposed on a substrate; a first insulating layer disposed on the first metal layer; a first transistor disposed on the first insulating layer and including a semiconductor layer; and a light-emitting device electrically connected to the first transistor, wherein the first metal layer includes a first portion with a first thickness and a second portion with a second thickness, the second thickness is greater than the first thickness, and the semiconductor layer is electrically connected to the first metal layer.
    Type: Application
    Filed: June 10, 2021
    Publication date: May 5, 2022
    Inventors: Kyoung Won LEE, Eun Hye KO, Yeon Hong KIM, Eun Hyun KIM, Sun Hee LEE, Jun Hyung LIM
  • Publication number: 20220045147
    Abstract: A display device includes a substrate, a first transistor including a channel on the substrate, a first electrode and a second electrode, and a gate electrode overlapping the channel of the first transistor, a first interlayer insulation layer on the first and second electrodes of the first transistor, a second transistor including a channel disposed on the first interlayer insulation layer, a first electrode and a second electrode of the second transistor, and a gate electrode that overlaps the channel of the second transistor, a first connection electrode disposed on the first interlayer insulation layer, and connected with the first electrode of the first transistor, a gate insulation layer disposed between the first interlayer insulation layer and the first connection electrode, and a second connection electrode that connects the first connection electrode and the first electrode of the second transistor.
    Type: Application
    Filed: April 28, 2021
    Publication date: February 10, 2022
    Inventors: Jay Bum KIM, Myeong Ho KIM, Yeon Hong KIM, Kyoung Seok SON, Sun Hee LEE, Seung Jun LEE, Seung Hun LEE, Jun Hyung LIM
  • Patent number: 11233104
    Abstract: A light emitting diode display device including: an organic light emitting diode including an anode electrode; a first transistor for providing a current to the anode electrode of the organic light emitting diode; a second transistor for transmitting a voltage to a gate electrode of the first transistor; a first capacitor for storing the voltage transmitted to the gate electrode of the first transistor; and a second capacitor disposed between a first electrode of the second transistor and a data line, wherein the first electrode of the second transistor is directly connected to the anode electrode of the organic light emitting diode.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Ho Park, Yeon Hong Kim, Jin Yeong Kim, Jin Taek Kim, Soo hyun Moon, Mi Jin Park, Tae Hoon Yang, Sung-Jin Lee, Jin Woo Lee, Kwang Taek Hong
  • Publication number: 20220020837
    Abstract: A display device includes a substrate, a corrosion prevention layer on the substrate and including an inorganic material, a first conductive layer on the corrosion prevention layer and including aluminum or an aluminum alloy, a first insulating film on the first conductive layer, a semiconductor layer on the first insulating film and including a channel region of a transistor, a second insulating film on the semiconductor layer, and a second conductive layer on the second insulating film and including a barrier layer, which includes titanium, and a main conductive layer, which includes aluminum or an aluminum alloy, wherein the semiconductor layer includes an oxide semiconductor, and the barrier layer is between the semiconductor layer and the main conductive layer and overlaps the channel region of the transistor.
    Type: Application
    Filed: April 6, 2021
    Publication date: January 20, 2022
    Inventors: Yeon Hong KIM, Eun Hye KO, Eun Hyun KIM, Kyoung Won LEE, Sun Hee LEE, Jun Hyung LIM
  • Publication number: 20210043707
    Abstract: A light emitting diode display device including: an organic light emitting diode including an anode electrode; a first transistor for providing a current to the anode electrode of the organic light emitting diode; a second transistor for transmitting a voltage to a gate electrode of the first transistor; a first capacitor for storing the voltage transmitted to the gate electrode of the first transistor; and a second capacitor disposed between a first electrode of the second transistor and a data line, wherein the first electrode of the second transistor is directly connected to the anode electrode of the organic tight emitting diode.
    Type: Application
    Filed: July 23, 2020
    Publication date: February 11, 2021
    Inventors: Sang Ho PARK, Yeon Hong KIM, Jin Yeong KIM, Jin Taek KIM, Soo hyun MOON, Mi Jin PARK, Tae Hoon YANG, Sung-Jin LEE, Jin Woo LEE, Kwang Taek HONG
  • Patent number: 10319711
    Abstract: An organic light emitting display device includes a substrate including a pixel region and a peripheral region, a first wiring, a second wiring, a third wiring, and an electrostatic protection structure including electrostatic protection diodes coupled to the first, second, and third wirings. The electrostatic protection diodes each include an active pattern, a gate electrode pattern, and a connection pattern. The active pattern is at the peripheral region of the substrate, and has a first region, a second region spaced apart from the first region, and a third region between the first and second regions. The gate electrode pattern is at the third region on the active pattern. The connection pattern is coupled to the gate electrode pattern and the active pattern and is on the gate electrode pattern, and overlaps a portion of the first region of the active pattern and a portion of the third region.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 11, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Hyun Kim, Yeon-Hong Kim, Ki-Wan Ahn
  • Publication number: 20180076192
    Abstract: An organic light emitting display device includes a substrate including a pixel region and a peripheral region, a first wiring, a second wiring, a third wiring, and an electrostatic protection structure including electrostatic protection diodes coupled to the first, second, and third wirings. The electrostatic protection diodes each include an active pattern, a gate electrode pattern, and a connection pattern. The active pattern is at the peripheral region of the substrate, and has a first region, a second region spaced apart from the first region, and a third region between the first and second regions. The gate electrode pattern is at the third region on the active pattern. The connection pattern is coupled to the gate electrode pattern and the active pattern and is on the gate electrode pattern, and overlaps a portion of the first region of the active pattern and a portion of the third region.
    Type: Application
    Filed: June 30, 2017
    Publication date: March 15, 2018
    Inventors: Jung-Hyun KIM, Yeon-Hong KIM, Ki-Wan AHN
  • Patent number: 9583633
    Abstract: In an oxide for a semiconductor layer of a thin film transistor according to the present invention, wherein metal elements constituting the oxide are In, Zn, and Sn, an oxygen partial pressure is 15% by volume or more when depositing the oxide in the semiconductor layer of the thin film transistor, and a defect density of the oxide satisfies 7.5×1015cm?3 or less, and a mobility satisfies 15 cm2/Vs or more.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: February 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung Du Ahn, Gun Hee Kim, Yeon-Hong Kim, Jin Hyun Park, Shuji Kosaka, Kazushi Hayashi