Patents by Inventor Ju-won Yoon

Ju-won Yoon 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: 20240155885
    Abstract: Provided is a display device. A display device includes a display area and a buffer area disposed around the display area, a pixel electrode disposed on a substrate and in the display area, a bank covering an edge of the pixel electrode, light emitting elements disposed on the pixel electrode and extending in a thickness direction of the substrate, and a buffer disposed on the substrate and in the buffer area. The bank and the buffer are disposed on a same layer.
    Type: Application
    Filed: July 25, 2023
    Publication date: May 9, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Jung Hun NOH, Su Jin LEE, Bon Yong KOO, Ki Seong SEO, Ju Won YOON
  • Publication number: 20240063343
    Abstract: A display device comprises a pixel electrode disposed on a substrate, light emitting elements disposed on the pixel electrode, a first via layer disposed on the pixel electrode and filled between the light emitting elements, and a common electrode disposed on the first via layer and the light emitting elements, wherein each of the light emitting elements includes a first semiconductor layer including a p-type dopant, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer and including an n-type dopant, and a third semiconductor layer disposed on the second semiconductor layer, and the common electrode is in contact with a side surface of the second semiconductor layer.
    Type: Application
    Filed: April 21, 2023
    Publication date: February 22, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Jung Hun NOH, Ju Won YOON, Jin Wan KIM, Jin Woo CHOI
  • Publication number: 20230411577
    Abstract: The display device includes a substrate, a thin-film transistor on the substrate and including a first electrode, a second electrode and a semiconductor layer, a first insulating layer on the thin-film transistor, an organic layer on the first insulating layer, at least one light-emitting element on the organic layer, a pixel electrode on the organic layer and in contact with a side surface of the at least one light-emitting element, a planarization layer on the side surface of the at least one light-emitting element and a common electrode on the at least one light-emitting element and the planarization layer.
    Type: Application
    Filed: February 24, 2023
    Publication date: December 21, 2023
    Inventors: Ju Won YOON, Jung Hun NOH, Ki Seong SEO, Jae Gwang UM, So Yeon YOON, Sang Hyun LEE, Hyung Il JEON
  • Patent number: 11682353
    Abstract: An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Won Yoon, Gun Hee Kim, Sang Ho Park, Seung Chan Lee, Joo Hee Jeon
  • Patent number: 11637162
    Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor including a first gate electrode, a first source region, and a first drain region, a second transistor connected to the first source region of the first transistor, a third transistor connected to the first gate electrode and the first drain region of the first transistor, a fifth transistor connected to the first source region of the first transistor, and a sixth transistor connected to the first drain region of the first transistor. The pixels include a first pixel and a second pixel disposed adjacent to each other. The first and second pixels share a fourth transistor connected to the third transistor of the first pixel and the third transistor of the second pixel, and share a seventh transistor connected to the sixth transistor of the first pixel and the sixth transistor of the second pixel.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: April 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeong-Soo Lee, Moo Soon Ko, Min Woo Woo, Ju-Won Yoon, Deuk Myung Ji
  • Publication number: 20220335895
    Abstract: An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 20, 2022
    Inventors: Ju-Won YOON, Gun Hee KIM, Sang Ho PARK, Seung Chan LEE, Joo Hee JEON
  • Publication number: 20220310579
    Abstract: A display device and a method for fabricating the same. The display device includes a substrate including a circuit layer and a first pad unit; an auxiliary substrate disposed below the substrate and comprising a driving circuit and a second pad unit; a light-emitting unit disposed on the circuit layer; and a connection electrode in contact with a side surface of the substrate and electrically connecting the first pad unit with the second pad unit. The method includes forming a circuit layer and a first pad unit on a first surface of a substrate; forming a driving circuit and a second pad unit on a fourth surface of an auxiliary substrate; and attaching a second surface of the substrate opposite the first surface to a third surface of the auxiliary substrate opposite the fourth surface.
    Type: Application
    Filed: June 15, 2022
    Publication date: September 29, 2022
    Applicant: Samsung Display Co. Ltd.
    Inventors: Seung Chan LEE, Gun Hee KIM, Sang Ho PARK, Ju Won YOON, Joo Hee JEON, Hyun Joon KIM
  • Patent number: 11393804
    Abstract: A display device and a method for fabricating the same. The display device includes a substrate including a circuit layer and a first pad unit; an auxiliary substrate disposed below the substrate and comprising a driving circuit and a second pad unit; a light-emitting unit disposed on the circuit layer; and a connection electrode in contact with a side surface of the substrate and electrically connecting the first pad unit with the second pad unit. The method includes forming a circuit layer and a first pad unit on a first surface of a substrate; forming a driving circuit and a second pad unit on a fourth surface of an auxiliary substrate; and attaching a second surface of the substrate opposite the first surface to a third surface of the auxiliary substrate opposite the fourth surface.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Chan Lee, Gun Hee Kim, Sang Ho Park, Ju Won Yoon, Joo Hee Jeon, Hyun Joon Kim
  • Patent number: 11386854
    Abstract: A pixel circuit includes: a driving switching element; a data initializer to initialize a voltage of a control electrode of the driving switching element; a data writer to write a data voltage to the driving switching element; an organic light emitting element; an organic light emitting element initializer to initialize an anode electrode of the organic light emitting element to a second initialization voltage based on an organic light emitting element initialization gate signal; and a light emitting controller to control an emission of the organic light emitting element. The organic light emitting element initializer includes: a control electrode to receive the organic light emitting element initialization gate signal; an input electrode to receive the second initialization voltage; an output electrode connected to the anode electrode; and a conductive layer to receive a compensation control signal that is different from the organic light emitting element initialization gate signal.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: July 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gun-Hee Kim, Sang-Ho Park, Ju-Won Yoon, Seung-Chan Lee, Joo-Hee Jeon
  • Patent number: 11380263
    Abstract: An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: July 5, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Won Yoon, Gun Hee Kim, Sang Ho Park, Seung Chan Lee, Joo Hee Jeon
  • Publication number: 20220208899
    Abstract: A display device includes a plurality of first pixels, a substrate, a first semiconductor layer which is disposed on the substrate and includes an active layer of a first transistor, a first insulating layer which is disposed on the first semiconductor layer, a first conductive layer which is disposed on the first insulating layer and includes a gate electrode of the first transistor, a second insulating layer which is disposed on the first conductive layer, and a second conductive layer which is disposed on the second insulating layer and includes a first electrode and a second electrode of the first transistor, where a first opening exposing the first conductive layer in an area in which the first conductive layer and the second conductive layer of each of the plurality of first pixels do not overlap is defined in the second insulating layer.
    Type: Application
    Filed: August 19, 2021
    Publication date: June 30, 2022
    Inventors: Ju Won YOON, Tae Hoon YANG
  • Patent number: 11355064
    Abstract: A pixel circuit includes an OLED, a first transistor including a gate electrode connected to a first node and an electrode connected to a third node, a capacitor including a first electrode for receiving a power supply voltage and a second electrode connected to the first node, a third transistor including a gate electrode for receiving a first gate signal, a first electrode connected to the first node, and a second electrode connected to the third node, a fourth transistor including a gate electrode for receiving a second gate signal, a first electrode connected to the first node, and a second electrode and a second gate electrode for receiving a first initialization voltage, and a seventh transistor including a gate electrode for receiving a third gate signal, a first electrode for receiving a second initialization voltage, and a second electrode connected to an anode electrode of the OLED.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joo-Hee Jeon, Gun-Hee Kim, Ju-Won Yoon, Seung-Chan Lee, Sang-Ho Park, Joo-Sun Yoon
  • Patent number: 11281882
    Abstract: A method of manufacturing a display apparatus includes: forming first patterns of a semiconductor material on a base layer; forming a first insulating layer covering the first patterns; forming second patterns of a conductive material on the first insulating layer; removing at least a portion of at least one of the second patterns; and forming a second insulating layer on the second patterns. Each of the second patterns includes a first layer and a second layer disposed on the first layer, the first patterns include a semiconductor pattern, the second patterns include a control electrode pattern overlapping with the semiconductor pattern in a plan view and a sensing electrode pattern, the second layer of the control electrode pattern fully covers the first layer of the control electrode pattern, and the second layer of the sensing electrode pattern is partially removed in the removing of the at least a portion to partially cover the first layer of the sensing electrode pattern.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: March 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-won Yoon, Moosoon Ko, Youngwoo Park, Seongjun Lee
  • Patent number: 11250234
    Abstract: A method of manufacturing a display apparatus includes: forming first patterns of a semiconductor material on a base layer; forming a first insulating layer covering the first patterns; forming second patterns of a conductive material on the first insulating layer; removing at least a portion of at least one of the second patterns; and forming a second insulating layer on the second patterns. Each of the second patterns includes a first layer and a second layer disposed on the first layer, the first patterns include a semiconductor pattern, the second patterns include a control electrode pattern overlapping with the semiconductor pattern in a plan view and a sensing electrode pattern, the second layer of the control electrode pattern fully covers the first layer of the control electrode pattern, and the second layer of the sensing electrode pattern is partially removed in the removing of the at least a portion to partially cover the first layer of the sensing electrode pattern.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: February 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-won Yoon, Moosoon Ko, Youngwoo Park, Seongjun Lee
  • Publication number: 20210319747
    Abstract: A pixel circuit includes an OLED, a first transistor including a gate electrode connected to a first node and an electrode connected to a third node, a capacitor including a first electrode for receiving a power supply voltage and a second electrode connected to the first node, a third transistor including a gate electrode for receiving a first gate signal, a first electrode connected to the first node, and a second electrode connected to the third node, a fourth transistor including a gate electrode for receiving a second gate signal, a first electrode connected to the first node, and a second electrode and a second gate electrode for receiving a first initialization voltage, and a seventh transistor including a gate electrode for receiving a third gate signal, a first electrode for receiving a second initialization voltage, and a second electrode connected to an anode electrode of the OLED.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 14, 2021
    Inventors: Joo-Hee JEON, Gun-Hee KIM, Ju-Won YOON, Seung-Chan LEE, Sang-Ho PARK, Joo-Sun YOON
  • Publication number: 20210295784
    Abstract: A pixel circuit includes: a driving switching element; a data initializer to initialize a voltage of a control electrode of the driving switching element; a data writer to write a data voltage to the driving switching element; an organic light emitting element; an organic light emitting element initializer to initialize an anode electrode of the organic light emitting element to a second initialization voltage based on an organic light emitting element initialization gate signal; and a light emitting controller to control an emission of the organic light emitting element. The organic light emitting element initializer includes: a control electrode to receive the organic light emitting element initialization gate signal; an input electrode to receive the second initialization voltage; an output electrode connected to the anode electrode; and a conductive layer to receive a compensation control signal that is different from the organic light emitting element initialization gate signal.
    Type: Application
    Filed: June 25, 2019
    Publication date: September 23, 2021
    Inventors: Gun-Hee KIM, Sang-Ho PARK, Ju-Won YOON, Seung-Chan LEE, Joo-Hee JEON
  • Publication number: 20210272521
    Abstract: An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 2, 2021
    Inventors: Ju-Won YOON, Gun Hee KIM, Sang Ho PARK, Seung Chan LEE, Joo Hee JEON
  • Publication number: 20210216738
    Abstract: A method of manufacturing a display apparatus includes: forming first patterns of a semiconductor material on a base layer; forming a first insulating layer covering the first patterns; forming second patterns of a conductive material on the first insulating layer; removing at least a portion of at least one of the second patterns; and forming a second insulating layer on the second patterns. Each of the second patterns includes a first layer and a second layer disposed on the first layer, the first patterns include a semiconductor pattern, the second patterns include a control electrode pattern overlapping with the semiconductor pattern in a plan view and a sensing electrode pattern, the second layer of the control electrode pattern fully covers the first layer of the control electrode pattern, and the second layer of the sensing electrode pattern is partially removed in the removing of the at least a portion to partially cover the first layer of the sensing electrode pattern.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 15, 2021
    Inventors: Ju-won YOON, Moosoon KO, Youngwoo PARK, Seongjun LEE
  • Patent number: 11038005
    Abstract: An organic light emitting diode (OLED) display includes a first electrode, a pixel defining layer that at least partially exposes the first electrode, an organic light emitting layer on the first electrode, a thin-film encapsulation layer on the organic light emitting layer, and a light shielding member on the thin-film encapsulation the light shielding member overlapping the pixel defining layer. The organic light emitting layer includes a main area not overlapping the pixel defining layer and a sub area overlapping the pixel defining layer. The main area includes an open portion not overlapping the light shielding member and a shadow portion around the open portion overlapping the light shielding member.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 15, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gun Hee Kim, Sang Ho Park, Ju Won Yoon, Seung Chan Lee, Joo Hee Jeon
  • Publication number: 20210126071
    Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor including a first gate electrode, a first source region, and a first drain region, a second transistor connected to the first source region of the first transistor, a third transistor connected to the first gate electrode and the first drain region of the first transistor, a fifth transistor connected to the first source region of the first transistor, and a sixth transistor connected to the first drain region of the first transistor. The pixels include a first pixel and a second pixel disposed adjacent to each other. The first and second pixels share a fourth transistor connected to the third transistor of the first pixel and the third transistor of the second pixel, and share a seventh transistor connected to the sixth transistor of the first pixel and the sixth transistor of the second pixel.
    Type: Application
    Filed: January 4, 2021
    Publication date: April 29, 2021
    Inventors: JEONG-SOO LEE, MOO SOON KO, MIN WOO WOO, JU-WON YOON, DEUK MYUNG JI