Patents by Inventor Seong-Min Wang

Seong-Min Wang 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: 11594179
    Abstract: A pixel circuit includes a light-emitting element, a first transistor, a second transistor operating based on a first gate signal, a third transistor operating based on a second gate signal, a fourth transistor operating based on an initialization control signal, a fifth transistor operating based on an emission control signal, a sixth transistor operating based on the emission control signal, a seventh transistor, of which one terminal is connected to the light-emitting element, operating based on a bias control signal, an eighth transistor, of which one terminal is connected to the driving transistor, operating based on the bias control signal, a storage capacitor, and the light-emitting element. The circuit performs a display-scan operation where a driving time of a panel driving frame is a predetermined duration, and performs a display-scan operation and a self-scan operation where the driving time is longer than the predetermined duration.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: February 28, 2023
    Inventors: Seong Min Wang, Jihye Kong, Yongho Yang, Jeong-Soo Lee
  • Publication number: 20230056635
    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, a sensor 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 on a side surface of the sensor, in which the second adhesive layer and the first adhesive layer contact each other.
    Type: Application
    Filed: November 4, 2022
    Publication date: February 23, 2023
    Inventors: Seong Min WANG, Beohm Rock CHOI, Yong Ho YANG
  • Publication number: 20230050385
    Abstract: A display device includes a display panel on which a first light emitting element and a second light emitting element adjacent to the first light emitting element are disposed. A sensor layer including a touch electrode is disposed on the display panel. The touch electrode includes a first portion having a first width, a second portion having a second width that is smaller than the first width, and a third portion connecting the first portion to the second portion. The first portion, the second portion, and the third portion are each disposed between the first light emitting element and the second light emitting element.
    Type: Application
    Filed: May 9, 2022
    Publication date: February 16, 2023
    Inventors: HYEONBUM LEE, CHIWOOK AN, SEONG MIN WANG
  • Publication number: 20230005434
    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: September 8, 2022
    Publication date: January 5, 2023
    Inventors: Seong Min WANG, Young In HWANG, Jin Woo PARK, Yong Ho YANG
  • Publication number: 20220415980
    Abstract: A light emitting display device includes: a flexible substrate including a display area and a peripheral area having a bending area. The display area includes: a plurality of inorganic layers; first and second organic layers that are disposed on the plurality of inorganic layers; a black pixel defining layer that is disposed on the second organic layer; and a spacer that is disposed on the black pixel defining layer. In the bending area, the plurality of inorganic layers include a first opening formed at a position corresponding to the bending area. The first opening is filled with the first organic layer, the second organic layer is disposed on the first organic layer, the black pixel defining layer includes a second opening at a position corresponding to the bending area, and the second opening is filled with an organic layer for the spacer, formed of a same material as the spacer.
    Type: Application
    Filed: March 20, 2022
    Publication date: December 29, 2022
    Inventors: Hyeon Bum LEE, Seong Min Wang, Chi Wook An
  • Publication number: 20220415993
    Abstract: A light emitting display device includes first and second pixel circuit portions, each having a transistor with a polycrystalline semiconductor and a transistor with an oxide semiconductor, and first and second light emitting diodes including first and second anodes connected with the first and second pixel circuit portions, respectively. An encapsulation layer covers the first and second pixel circuit portions and the first and second light emitting diodes. A light blocking layer includes first and second light blocking layer openings that are disposed on the encapsulation layer and overlap the first and second anodes, respectively. First and second color filters are disposed in the first and second light blocking layer openings, wherein first and second expansion portions corresponding to the first and second anodes are disposed in a first and second conductive layers disposed first down from the first anode and second down from the second anode, respectively.
    Type: Application
    Filed: March 16, 2022
    Publication date: December 29, 2022
    Inventors: Min Yeul RYU, Jun Hee LEE, Hyeon Bum LEE, Seong Min WANG
  • Publication number: 20220392405
    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: August 19, 2022
    Publication date: December 8, 2022
    Inventors: Young-In HWANG, Sung Ho KIM, Eung Taek KIM, Yong Ho YANG, Seong Min WANG, Jung-Mi CHOI
  • Patent number: 11514854
    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: Grant
    Filed: January 28, 2021
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-In Hwang, Sung Ho Kim, Yong Ho Yang, Seong Min Wang
  • Patent number: 11493795
    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: Grant
    Filed: February 3, 2021
    Date of Patent: November 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Min Wang, Beohm Rock Choi, Yong Ho Yang
  • Publication number: 20220336554
    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: June 29, 2022
    Publication date: October 20, 2022
    Applicant: 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: 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
  • 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
  • Publication number: 20220216435
    Abstract: A display device includes a substrate, a thin film transistor disposed on the substrate, and a display element electrically connected to the thin film transistor. The substrate includes a first substrate layer, a second substrate layer disposed on the first substrate layer, a first barrier layer disposed between the first substrate layer and the second substrate layer, and a first ultraviolet light blocking layer disposed between the first substrate layer and the second substrate layer.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Inventors: SEONG MIN WANG, BEOHMROCK CHOI, YONGHO YANG
  • 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
  • Publication number: 20220189402
    Abstract: A pixel circuit includes a light-emitting element, a first transistor, a second transistor operating based on a first gate signal, a third transistor operating based on a second gate signal, a fourth transistor operating based on an initialization control signal, a fifth transistor operating based on an emission control signal, a sixth transistor operating based on the emission control signal, a seventh transistor, of which one terminal is connected to the light-emitting element, operating based on a bias control signal, an eighth transistor, of which one terminal is connected to the driving transistor, operating based on the bias control signal, a storage capacitor, and the light-emitting element. The circuit performs a display-scan operation where a driving time of a panel driving frame is a predetermined duration, and performs a display-scan operation and a self-scan operation where the driving time is longer than the predetermined duration.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Inventors: SEONG MIN WANG, JIHYE KONG, YONGHO 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: 11335866
    Abstract: A display device includes a substrate, a thin film transistor disposed on the substrate, and a display element electrically connected to the thin film transistor. The substrate includes a first substrate layer, a second substrate layer disposed on the first substrate layer, a first barrier layer disposed between the first substrate layer and the second substrate layer, and a first ultraviolet light blocking layer disposed between the first substrate layer and the second substrate layer.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Min Wang, Beohmrock Choi, Yongho Yang