Patents by Inventor Yong-Ho Yang

Yong-Ho Yang 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: 11468844
    Abstract: A display device may include a first pixel coupled to an emission control line, and an emission control stage for selectively coupling the emission control line to a first or second supply voltage line. The emission control stage may include: a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a main gate electrode coupled to a first node; a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a main gate electrode coupled to a second node; and a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode coupled to the second node, and a sub-gate electrode.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: October 11, 2022
    Inventors: Seong Min Wang, Young In Hwang, Jin Woo Park, Yong Ho Yang
  • Publication number: 20220320199
    Abstract: A display device includes a substrate including an opening area, a peripheral area adjacent to the opening area, and a display area adjacent to the peripheral area; a semiconductor layer overlapping the display area, disposed on the substrate, and including a channel; a gate electrode overlapping the channel of the semiconductor layer; an insulating layer disposed on the gate electrode, and including a first inorganic insulating layer and a second inorganic insulating layer disposed on the first inorganic insulating layer; a first electrode disposed on the insulating layer; an emission layer disposed on the first electrode; and a second electrode disposed on the emission layer, wherein the second inorganic insulating layer is not disposed in at least a portion of an open region in which the emission layer and the second electrode are disconnected in the peripheral area.
    Type: Application
    Filed: November 10, 2021
    Publication date: October 6, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin-Suk LEE, Kohei EBISUNO, Jong Min LEE, Yong Ho YANG
  • Patent number: 11423835
    Abstract: A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: August 23, 2022
    Inventors: Young-In Hwang, Sung Ho Kim, Eung Taek Kim, Yong Ho Yang, Seong Min Wang, Jung-Mi Choi
  • Publication number: 20220262312
    Abstract: An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.
    Type: Application
    Filed: May 3, 2022
    Publication date: August 18, 2022
    Inventors: YOUNG-IN HWANG, Sung Ho Kim, Yong Ho Yang, Seong Min Wang
  • Patent number: 11398528
    Abstract: A display panel may include a first OLED disposed in a first sub-pixel region and emitting light of a first color, a second OLED disposed in a second sub-pixel region and emitting light of a second color, a third OLED disposed in a third sub-pixel region and emitting light of a third color, a fourth OLED disposed in a fourth sub-pixel region and emitting light of the second color, a first sub-pixel circuit disposed in the first sub-pixel region and driving the third OLED in the third sub-pixel region, a second sub-pixel circuit disposed in the second sub-pixel region and driving the first OLED in the first sub-pixel region, a third sub-pixel circuit disposed in the third sub-pixel region and driving the fourth OLED in the fourth sub-pixel region, and a fourth sub-pixel circuit disposed in the fourth sub-pixel region and driving the second OLED in the second sub-pixel region.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: July 26, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-In Hwang, Eung Taek Kim, Yong Ho Yang, Seong Min Wang, Joo Hyeon Jo, Jung-Mi Choi, Seong Baik Chu
  • Patent number: 11380746
    Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: July 5, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Min Wang, Young-In Hwang, Yong Ho Yang, Yong Su Lee, Jae Seob Lee, Gyoo Chul Jo
  • Patent number: 11373597
    Abstract: A display device includes a display panel, a driving circuit, and a power supply. The driving circuit is connected to a plurality of pixels of the display panel through a plurality of scan line sets and a plurality of data lines, provides a plurality of scan signals to the display panel, and provides data voltages to the plurality of data lines. The power supply applies one or more power voltages to the plurality of pixels. The driving circuit enables at least two scan signals of the plurality of scan signals during a non-emission interval, partially overlapping the at least two scan signals during at least two consecutive horizontal periods.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: June 28, 2022
    Inventors: Seong Min Wang, Ji Hye Kong, Yong Ho Yang, Jeong-Soo Lee
  • Patent number: 11335260
    Abstract: An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-In Hwang, Sung Ho Kim, Yong Ho Yang, Seong Min Wang
  • Patent number: 11237442
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a plurality of pixels arranged in a matrix on the substrate where each pixel includes a switching element, a plurality of gate lines that are connected to the switching elements and extend in a row direction, and a gate driver that is connected to the gate lines and is formed on the substrate as an integrated circuit. In the liquid crystal display, the gate driver includes a first region and a second region that is not aligned with the first region.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 1, 2022
    Inventors: Yong-Ho Yang, Joo-Sun Yoon, Ki-Hun Jeong
  • Publication number: 20210265450
    Abstract: A display device includes an array substrate including a pixel array disposed in a display area, and a fan-out wiring disposed in a peripheral area adjacent to the display area. The fan-out wiring is disposed in a sealing area surrounding the display area. The display device includes a cover substrate combined with the array substrate by a sealing member disposed in the sealing area. The fan-out wiring includes a first fan-out line, a second fan-out line, and a third fan-out line, which are disposed in different layers in a first peripheral area between the display area and the sealing area. The first fan-out line and the second fan-out line are disposed in a same layer in the sealing area, and the first fan-out line and the third fan-out line are disposed in different layers in the sealing area.
    Type: Application
    Filed: December 23, 2020
    Publication date: August 26, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Hoon OH, Yong Ho YANG
  • Publication number: 20210264857
    Abstract: A display device includes a display panel, a driving circuit, and a power supply. The driving circuit is connected to a plurality of pixels of the display panel through a plurality of scan line sets and a plurality of data lines, provides a plurality of scan signals to the display panel, and provides data voltages to the plurality of data lines. The power supply applies one or more power voltages to the plurality of pixels. The driving circuit enables at least two scan signals of the plurality of scan signals during a non-emission interval, partially overlapping the at least two scan signals during at least two consecutive horizontal periods.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 26, 2021
    Inventors: Seong Min WANG, Ji Hye KONG, Yong Ho YANG, Jeong-Soo LEE
  • Publication number: 20210210573
    Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seong Min WANG, Young-In HWANG, Yong Ho YANG, Yong Su LEE, Jae Seob LEE, Gyoo Chul JO
  • Publication number: 20210202646
    Abstract: An organic light emitting diode display includes a substrate, a plurality of pixels disposed on the substrate, a plurality of transmissive windows spaced apart from the pixels, and a light blocking member disposed between one of the pixels and one of the transmissive windows. The pixels display an image, and light is transmitted through the transmissive windows. Each pixel includes a transistor including a plurality of electrode members disposed in different layers on the substrate. The light blocking member includes a plurality of light blocking sub-members respectively disposed in the same layers as the plurality of electrode members.
    Type: Application
    Filed: March 10, 2021
    Publication date: July 1, 2021
    Inventors: KOHEI EBISUNO, Yong Ho YANG, Jun Hee LEE, Nak Cho CHOI
  • Publication number: 20210193037
    Abstract: An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a fist gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Inventors: YOUNG-IN HWANG, SUNG HO KIM, YONG HO YANG, SEONG MIN WANG
  • Publication number: 20210174745
    Abstract: A display device may include a first pixel coupled to an emission control line, and an emission control stage for selectively coupling the emission control line to a first or second supply voltage line. The emission control stage may include: a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a main gate electrode coupled to a first node; a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a main gate electrode coupled to a second node; and a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode coupled to the second node, and a sub-gate electrode.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 10, 2021
    Inventors: Seong Min WANG, Young In HWANG, Jin Woo PARK, Yong Ho YANG
  • Publication number: 20210157189
    Abstract: A display device including a display panel having a first side including a display area configured to emit light and a second side opposite to the first side, an auxiliary layer disposed on the second side of the display area and including an opening, a sensor overlapping the opening and having a first surface facing the display panel, a first adhesive layer disposed between the first surface of the sensor and the display panel, and a second adhesive layer disposed between a side surface of the sensor and the auxiliary layer, in which the second adhesive layer and the first adhesive layer contact each other.
    Type: Application
    Filed: February 3, 2021
    Publication date: May 27, 2021
    Inventors: Seong Min WANG, Beohm Rock CHOI, Yong Ho YANG
  • Publication number: 20210150982
    Abstract: A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.
    Type: Application
    Filed: January 25, 2021
    Publication date: May 20, 2021
    Inventors: Young-In HWANG, Sung Ho KIM, Eung Taek KIM, Yong Ho YANG, Seong Min WANG, Jung-Mi CHOI
  • Publication number: 20210150984
    Abstract: An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a fist gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Inventors: Young-In HWANG, Sung Ho KIM, Yong Ho YANG, Seong Min WANG
  • Publication number: 20210134892
    Abstract: A display panel may include a first OLED disposed in a first sub-pixel region and emitting light of a first color, a second OLED disposed in a second sub-pixel region and emitting light of a second color, a third OLED disposed in a third sub-pixel region and emitting light of a third color, a fourth OLED disposed in a fourth sub-pixel region and emitting light of the second color, a first sub-pixel circuit disposed in the first sub-pixel region and driving the third OLED in the third sub-pixel region, a second sub-pixel circuit disposed in the second sub-pixel region and driving the first OLED in the first sub-pixel region, a third sub-pixel circuit disposed in the third sub-pixel region and driving the fourth OLED in the fourth sub-pixel region, and a fourth sub-pixel circuit disposed in the fourth sub-pixel region and driving the second OLED in the second sub-pixel region.
    Type: Application
    Filed: July 2, 2020
    Publication date: May 6, 2021
    Inventors: Young-In HWANG, Eung Taek Kim, Yong Ho YANG, Seong Min WANG, Joo Hyeon JO, Jung-Mi CHOI, Seong Baik CHU
  • Patent number: 10985227
    Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Min Wang, Young-In Hwang, Yong Ho Yang, Yong Su Lee, Jae Seob Lee, Gyoo Chul Jo