Patents by Inventor Hoiyong Kwon

Hoiyong Kwon 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: 20190131377
    Abstract: Disclosed are a display apparatus and a method for manufacturing the same. The display apparatus comprises: a multi-buffer layer; a pixel array layer formed on the multi-buffer layer and including a plurality of pixels respectively formed as the intersections of a plurality of gate lines and a plurality of data lines; an encapsulation layer formed on the pixel array layer; and an encapsulation substrate formed on the encapsulation layer and including a display area and a non-display area adjacent to the display area, wherein, the encapsulation substrate is for supporting the display area and the non-display area such that there is no base substrate in the display apparatus.
    Type: Application
    Filed: October 26, 2018
    Publication date: May 2, 2019
    Inventors: Hoiyong KWON, MiReum LEE
  • Patent number: 10276723
    Abstract: A flexible display is disclosed. The flexible display including an oxide semiconductor thin film transistor on a plastic substrate includes a first buffer layer disposed on the plastic substrate, a second buffer layer disposed on the first buffer layer and formed of silicon oxide (SiOx), and an active layer disposed on the second buffer layer and formed of an oxide semiconductor. The first buffer layer includes a lower layer directly contacting the plastic substrate and formed of silicon nitride (SiNx) and an upper layer disposed on the lower layer and formed of silicon oxide (SiOx).
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: April 30, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sangcheon Youn, Seyeoul Kwon, Hoiyong Kwon, Eunah Kim
  • Patent number: 10254573
    Abstract: Disclosed is a flexible display device that may include a flexible substrate; a display device layer provided on a first surface of the flexible substrate; and a deformation-preventing portion provided on a second surface of the flexible substrate, the second surface corresponding to the opposite surface to the first surface provided with the display device layer, wherein the display device layer includes a first area and a second area, and the deformation-preventing portion is overlapped with the second area.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: April 9, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hoiyong Kwon, MiReum Lee
  • Publication number: 20180090617
    Abstract: A flexible display is disclosed. The flexible display including an oxide semiconductor thin film transistor on a plastic substrate includes a first buffer layer disposed on the plastic substrate, a second buffer layer disposed on the first buffer layer and formed of silicon oxide (SiOx), and an active layer disposed on the second buffer layer and formed of an oxide semiconductor. The first buffer layer includes a lower layer directly contacting the plastic substrate and formed of silicon nitride (SiNx) and an upper layer disposed on the lower layer and formed of silicon oxide (SiOx).
    Type: Application
    Filed: September 25, 2017
    Publication date: March 29, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Sangcheon YOUN, Seyeoul KWON, Hoiyong KWON, Eunah KIM
  • Patent number: 9691833
    Abstract: The present invention relates to a thin film transistor substrate having two different types of semiconductor materials on the same substrate, and a display using the same. A disclosed display may include a substrate, a first thin film transistor having a polycrystalline semiconductor material on the substrate and a second thin film transistor having an oxide semiconductor material on the substrate.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 27, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Saeroonter Oh, Seungmin Lee, Juheyuck Baeck, Hoiyong Kwon, Jeyong Jeon, Dohyung Lee
  • Patent number: 9634038
    Abstract: There is provided a TFT backplane having at least one TFT with oxide active layer and at least one TFT with poly-silicon active layer. In the embodiments of the present disclosure, at least one of the TFTs implementing the circuit of pixels in the active area is an oxide TFT (i.e., TFT with oxide semiconductor) while at least one of the TFTs implementing the driving circuit next to the active area is a LTPS TFT (i.e., TFT with poly-Si semiconductor).
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: April 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hoiyong Kwon, MiReum Lee, Hyoung-Su Kim
  • Publication number: 20160323993
    Abstract: A flexible display device is disclosed. The flexible display device may include a flexible substrate, a display device layer on a first surface of the flexible substrate, a receiving groove in a second surface of the flexible substrate, and a deformation-preventing layer in the receiving groove on the second surface of the flexible substrate.
    Type: Application
    Filed: December 30, 2015
    Publication date: November 3, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Hoiyong Kwon, MiReum Lee
  • Publication number: 20160323994
    Abstract: Disclosed is a flexible display device that may include a flexible substrate; a display device layer provided on a first surface of the flexible substrate; and a deformation-preventing portion provided on a second surface of the flexible substrate, the second surface corresponding to the opposite surface to the first surface provided with the display device layer, wherein the display device layer includes a first area and a second area, and the deformation-preventing portion is overlapped with the second area.
    Type: Application
    Filed: December 30, 2015
    Publication date: November 3, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hoiyong KWON, MiReum LEE
  • Patent number: 9449994
    Abstract: There is provided a TFT backplane having at least one TFT with oxide active layer and at least one TFT with poly-silicon active layer. In the embodiments of the present disclosure, at least one of the TFTs implementing the circuit of pixels in the active area is an oxide TFT (i.e., TFT with oxide semiconductor) while at least one of the TFTs implementing the driving circuit next to the active area is a LTPS TFT (i.e., TFT with poly-Si semiconductor).
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: September 20, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hoiyong Kwon, MiReum Lee, Hyoung-Su Kim
  • Patent number: 9406705
    Abstract: There is provided a TFT backplane having at least one TFT with oxide active layer and at least one TFT with poly-silicon active layer. In the embodiments of the present disclosure, at least one of the TFTs implementing the circuit of pixels in the active area is an oxide TFT (i.e., TFT with oxide semiconductor) while at least one of the TFTs implementing the driving circuit next to the active area is a LTPS TFT (i.e., TFT with poly-Si semiconductor).
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: August 2, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hoiyong Kwon, DongYoon Kim, Hyoung-Su Kim
  • Publication number: 20160064465
    Abstract: The present invention relates to a thin film transistor substrate having two different types of semiconductor materials on the same substrate, and a display using the same. A disclosed display may include a substrate, a first thin film transistor having a polycrystalline semiconductor material on the substrate and a second thin film transistor having an oxide semiconductor material on the substrate.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 3, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Saeroonter OH, Seungmin LEE, Juheyuck BAECK, Hoiyong KWON, Jeyong JEON, Dohyung LEE
  • Publication number: 20150243718
    Abstract: There is provided a TFT backplane having at least one TFT with oxide active layer and at least one TFT with poly-silicon active layer. In the embodiments of the present disclosure, at least one of the TFTs implementing the circuit of pixels in the active area is an oxide TFT (i.e., TFT with oxide semiconductor) while at least one of the TFTs implementing the driving circuit next to the active area is a LTPS TFT (i.e., TFT with poly-Si semiconductor).
    Type: Application
    Filed: December 31, 2014
    Publication date: August 27, 2015
    Inventors: Hoiyong Kwon, MiReum Lee, Hyoung-Su Kim
  • Publication number: 20150243720
    Abstract: There is provided a TFT backplane having at least one TFT with oxide active layer and at least one TFT with poly-silicon active layer. In the embodiments of the present disclosure, at least one of the TFTs implementing the circuit of pixels in the active area is an oxide TFT (i.e., TFT with oxide semiconductor) while at least one of the TFTs implementing the driving circuit next to the active area is a LTPS TFT (i.e., TFT with poly-Si semiconductor).
    Type: Application
    Filed: December 31, 2014
    Publication date: August 27, 2015
    Inventors: Hoiyong Kwon, MiReum Lee, Hyoung-Su Kim
  • Publication number: 20150243719
    Abstract: There is provided a TFT backplane having at least one TFT with oxide active layer and at least one TFT with poly-silicon active layer. In the embodiments of the present disclosure, at least one of the TFTs implementing the circuit of pixels in the active area is an oxide TFT (i.e., TFT with oxide semiconductor) while at least one of the TFTs implementing the driving circuit next to the active area is a LTPS TFT (i.e., TFT with poly-Si semiconductor).
    Type: Application
    Filed: December 31, 2014
    Publication date: August 27, 2015
    Inventors: Hoiyong Kwon, DongYoon Kim, Hyoung-Su Kim