Patents by Inventor Myunghoon PARK

Myunghoon 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: 12369455
    Abstract: A pixel that emits light at brightness corresponding to the amount of a driving current regardless of a threshold voltage of a driving transistor, and secure sufficient compensation time by separating an operation of compensating for the threshold voltage of the driving transistor and an operation of writing a data signal, and a display apparatus including the pixel.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: July 22, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunjoon Kim, Haemin Kim, Myunghoon Park, Byungchang Yu, Donghoon Lee
  • Patent number: 12249282
    Abstract: A display device is disclosed that includes a first circuit including a driving transistor including a first electrode, a second electrode, a gate electrode, and a back gate electrode, a light emitting element including an anode and a cathode connected to the first circuit, and a second circuit including a first transistor connected between the back gate electrode of the driving transistor and a compensation voltage line, and a second transistor connected between the back gate electrode of the driving transistor and a first voltage line.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: March 11, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byungchang Yu, Jangmi Kang, Myunghoon Park, Dong-Hoon Lee
  • Publication number: 20250053255
    Abstract: A display device includes a display panel and an input sensor. The input sensor may include a first sensing electrode, a signal line electrically connected to a first terminal of the first sensing electrode, a first line at least partially overlapping the first sensing electrode and extending in the same direction as the first sensing electrode in the active area, and a first switching element defining a first current path in the first sensing electrode and the first line or blocking the first current path.
    Type: Application
    Filed: October 21, 2024
    Publication date: February 13, 2025
    Inventors: DONG-HOON LEE, HAEMIN KIM, MYUNGHOON PARK, BYUNGCHANG YU, KYUNGHOON CHUNG
  • Patent number: 12141384
    Abstract: A display device includes a display panel and an input sensor. The input sensor may include a first sensing electrode, a signal line electrically connected to a first terminal of the first sensing electrode, a first line at least partially overlapping the first sensing electrode and extending in the same direction as the first sensing electrode in the active area, and a first switching element defining a first current path in the first sensing electrode and the first line or blocking the first current path.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: November 12, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Hoon Lee, Haemin Kim, Myunghoon Park, Byungchang Yu, Kyunghoon Chung
  • Publication number: 20240324283
    Abstract: A display apparatus is disclosed that includes a substrate including a front display area and a corner display area extending from a corner of the front display area. A plurality of main light-emitting elements is arranged in the front display area and a plurality of main pixel circuits are connected to the plurality of main light-emitting elements, respectively. A plurality of corner light-emitting elements is arranged in the corner display area and a plurality of corner pixel circuits are connected to the plurality of corner light-emitting elements. Each of the plurality of main pixel circuits and the plurality of corner pixel circuits includes a boost capacitor, and a capacitance of the boost capacitor included in each of the plurality of corner pixel circuits gradually increases or decreases as the boost capacitor gets farther from the front display area.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 26, 2024
    Inventors: Jangmi Kang, Myunghoon Park, Byungchang Yu, Donghoon Lee
  • Publication number: 20240324411
    Abstract: A display apparatus is provided. The display apparatus includes a substrate including a display area and a peripheral area, a dam portion arranged in the peripheral area of the substrate and including a plurality of dams, and an encapsulation layer disposed on the substrate and the dam portion. At least one of the plurality of dams includes at least one first layer including an organic layer, and a second layer disposed on the first layer and including at least one of a conductive layer and an inorganic layer.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 26, 2024
    Inventors: Donghoon Lee, Jangmi Kang, Haemin Kim, Myunghoon Park, Youngwan Seo, Byungchang Yu, Geunho Lee
  • Publication number: 20240251599
    Abstract: Disclosed is a display device which includes pixel drivers, each of which includes a first transistor switched by a voltage of a node and electrically connected between a second electrode and a second power supply line, a second transistor electrically connected between the node and a data line and switched by a write scan signal, and a capacitor including a first capacitor electrode electrically connected to the node and a second capacitor electrode electrically connected between the second power supply line and the first transistor. First electrodes of light emitting elements overlap each of the first capacitor electrodes of the pixel drivers.
    Type: Application
    Filed: September 11, 2023
    Publication date: July 25, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: DONG-HOON LEE, JANGMI KANG, MYUNGHOON PARK, MINKYU WOO, BYUNGCHANG YU
  • Publication number: 20240233645
    Abstract: A light emitting display device includes a light emitting diode including a first electrode and a second electrode to which a driving voltage is applied, a driving transistor, a second transistor receiving a data voltage and connected to a D node, a storage capacitor connected to the driving transistor and an N node, a hold capacitor connected to the D node and the N node, a third transistor connected to the D node and the driving transistor, a fourth transistor receiving a reference voltage and connected to the driving transistor, a fifth transistor connected to the driving transistor and the N node, a sixth transistor receiving a driving low voltage and connected to the driving transistor, a seventh transistor receiving an initialization voltage and connected the driving transistor, and an eighth transistor connected to the driving transistor and the first electrode of the light emitting diode.
    Type: Application
    Filed: March 22, 2024
    Publication date: July 11, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Byung Chang YU, Hyun Joon KIM, Hae Min KIM, Myunghoon PARK, Dong-Hoon LEE
  • Publication number: 20240237422
    Abstract: A display panel includes a first peripheral upper electrode disposed on an insulating layer in a peripheral area, a second peripheral upper electrode disposed on the insulating layer in the peripheral area and disposed closer to the display area than the first peripheral upper electrode, a display separator disposed between the upper electrode of the first light emitting device and the upper electrode of the second light emitting device, and a peripheral separator disposed between the first peripheral upper electrode and the second peripheral upper electrode to realize superior electrical reliability.
    Type: Application
    Filed: October 24, 2023
    Publication date: July 11, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: JANGMI KANG, MYUNGHOON PARK, BYUNGCHANG YU, DONG-HOON LEE
  • Publication number: 20240215358
    Abstract: The present disclosure provides a display panel and an electronic apparatus including the same. The display panel includes a first pixel including a first light emitting part in a first area and a first pixel driver in a second area, a second pixel including a second light emitting part in the second area and a second pixel driver in the second area, a first connection line connecting the first light emitting part and the first pixel driver, and a second connection line connecting the second light emitting part and the second pixel driver, wherein the first and second light emitting parts include a first electrode, an intermediate layer on the first electrode, and a second electrode on the intermediate layer, and the first and second connection lines include a driver connection part and an emission connection part spaced apart from the driver connection part.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 27, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: DONG-HOON LEE, JANGMI KANG, MYUNGHOON PARK, BYUNGCHANG YU
  • Patent number: 11972726
    Abstract: A light emitting display device includes a light emitting diode including a first electrode and a second electrode to which a driving voltage is applied, a driving transistor, a second transistor receiving a data voltage and connected to a D node, a storage capacitor connected to the driving transistor and an N node, a hold capacitor connected to the D node and the N node, a third transistor connected to the D node and the driving transistor, a fourth transistor receiving a reference voltage and connected to the driving transistor, a fifth transistor connected to the driving transistor and the N node, a sixth transistor receiving a driving low voltage and connected to the driving transistor, a seventh transistor receiving an initialization voltage and connected the driving transistor, and an eighth transistor connected to the driving transistor and the first electrode of the light emitting diode.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: April 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung Chang Yu, Hyun Joon Kim, Hae Min Kim, Myunghoon Park, Dong-Hoon Lee
  • Publication number: 20240138203
    Abstract: A display panel includes a first peripheral upper electrode disposed on an insulating layer in a peripheral area, a second peripheral upper electrode disposed on the insulating layer in the peripheral area and disposed closer to the display area than the first peripheral upper electrode, a display separator disposed between the upper electrode of the first light emitting device and the upper electrode of the second light emitting device, and a peripheral separator disposed between the first peripheral upper electrode and the second peripheral upper electrode to realize superior electrical reliability.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 25, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: JANGMI KANG, MYUNGHOON PARK, BYUNGCHANG YU, DONG-HOON LEE
  • Publication number: 20240130168
    Abstract: A display apparatus includes a display area in which a plurality of light-emitting diodes are disposed, a common voltage supply line disposed in a non-display area outside the display area, an organic insulating layer disposed on the common voltage supply line, a connection electrode layer disposed on the organic insulating layer and electrically connected to the common voltage supply line, an insulating layer disposed on the connection electrode layer, and a metal bank layer electrically connected to the connection electrode layer through a contact hole of the insulating layer, wherein the metal bank layer includes a first hole overlapping the organic insulating layer, and each of the connection electrode layer and the insulating layer includes a hole overlapping the first hole of the metal bank layer.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jangmi Kang, Myunghoon Park, Byungchang Yu, Donghoon Lee
  • Patent number: 11893926
    Abstract: Embodiments provide an emissive display device including a driving transistor including a first electrode, a second electrode, and a driving gate electrode, a second transistor including a first electrode electrically connected to a data line, a transfer capacitor including a first transfer electrode electrically connected to a second electrode of the second transistor and a second transfer electrode electrically connected to the driving gate electrode; a fifth transistor electrically connecting the first electrode of the driving transistor and the driving gate electrode; a ninth transistor including a second electrode electrically connected to the second electrode of the driving transistor; and a light emitting diode including an anode and a cathode receiving an output current outputted to the second electrode of the driving transistor.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: February 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung Chang Yu, Hae Min Kim, Myunghoon Park, Dong-Hoon Lee, Kyung Hoon Chung
  • Patent number: 11881159
    Abstract: A display device includes: a plurality of gate lines in a display area and extending in a first direction; a scan driver in a non-display area surrounding the display area, connecting the gate lines, extending in a second direction crossing the first direction, and having a first length in the second direction; and an antistatic pattern in the non-display area, extending in the second direction, and having a second length greater than the first length in the second direction.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: January 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myunghoon Park, Dong-Hoon Lee, Kyunghoon Chung, Haemin Kim, Byungchang Yu
  • Publication number: 20230402008
    Abstract: A display device is disclosed that includes a first circuit including a driving transistor including a first electrode, a second electrode, a gate electrode, and a back gate electrode, a light emitting element including an anode and a cathode connected to the first circuit, and a second circuit including a first transistor connected between the back gate electrode of the driving transistor and a compensation voltage line, and a second transistor connected between the back gate electrode of the driving transistor and a first voltage line.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 14, 2023
    Inventors: BYUNGCHANG YU, JANGMI KANG, MYUNGHOON PARK, DONG-HOON LEE
  • Publication number: 20230377510
    Abstract: Embodiments provide an emissive display device including a driving transistor including a first electrode, a second electrode, and a driving gate electrode, a second transistor including a first electrode electrically connected to a data line, a transfer capacitor including a first transfer electrode electrically connected to a second electrode of the second transistor and a second transfer electrode electrically connected to the driving gate electrode; a fifth transistor electrically connecting the first electrode of the driving transistor and the driving gate electrode; a ninth transistor including a second electrode electrically connected to the second electrode of the driving transistor; and a light emitting diode including an anode and a cathode receiving an output current outputted to the second electrode of the driving transistor.
    Type: Application
    Filed: February 16, 2023
    Publication date: November 23, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Byung Chang YU, Hae Min KIM, MYUNGHOON PARK, Dong-Hoon LEE, Kyung Hoon CHUNG
  • Publication number: 20230363206
    Abstract: A display apparatus includes a first capacitor electrode, a second capacitor electrode over the first capacitor electrode and overlapping the first capacitor electrode, a power voltage line over the second capacitor electrode and electrically connected to the second capacitor electrode, a connection electrode at a same layer as the power voltage line, the connection electrode being electrically connected to the first capacitor electrode, and a pixel electrode over the connection electrode and electrically connected to the connection electrode. A high-quality image may be displayed on the display apparatus.
    Type: Application
    Filed: March 7, 2023
    Publication date: November 9, 2023
    Inventors: Haemin Kim, Bonyong Koo, Myunghoon Park, Byungchang Yu, Donghoon Lee, Kyunghoon Chung
  • Publication number: 20230329046
    Abstract: A display device includes a data line, a first power line, a second power line, a pixel disposed in a display area and connected to the data line, the first power line, and the second power line, a transistor disposed in a non-display area around the display area and connected to the data line and the first power line, and a first light shielding layer extending from a portion of the second power line to the transistor and disposed on the transistor.
    Type: Application
    Filed: September 27, 2022
    Publication date: October 12, 2023
    Inventors: HAEMIN KIM, KYUNGHOON CHUNG, MYUNGHOON PARK, BYUNGCHANG YU, DONG-HOON LEE
  • Publication number: 20230306898
    Abstract: A display device includes: a plurality of gate lines in a display area and extending in a first direction; a scan driver in a non-display area surrounding the display area, connecting the gate lines, extending in a second direction crossing the first direction, and having a first length in the second direction; and an antistatic pattern in the non-display area, extending in the second direction, and having a second length greater than the first length in the second direction.
    Type: Application
    Filed: January 24, 2023
    Publication date: September 28, 2023
    Inventors: MYUNGHOON PARK, DONG-HOON LEE, KYUNGHOON CHUNG, HAEMIN KIM, BYUNGCHANG YU