Patents by Inventor Chang Yong Jeong

Chang Yong Jeong 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: 10783832
    Abstract: A scan driver, includes a plurality of stage circuits, each of which includes a driving circuit unit providing an output signal and an inverter inverting the output signal of the driving circuit unit and generating a scan signal, in which the inverter includes a first transistor and a second transistor, which are complementarily operated, the first transistor is a P-type polysilicon transistor, and the second transistor is an N-type oxide semiconductor transistor. A display device may include the scan driver.
    Type: Grant
    Filed: December 17, 2017
    Date of Patent: September 22, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung Ju Shin, Cheol Gon Lee, Sang Uk Lim, Chang Yong Jeong
  • Patent number: 10546959
    Abstract: A transistor includes a gate electrode, a semiconductor layer overlapping the gate electrode, the semiconductor layer including an oxide semiconductor, and a source electrode and a drain electrode spaced apart from the source electrode, wherein the source and drain electrodes are connected to the semiconductor layer. The semiconductor layer includes a plurality of layers, wherein a crystallinity of a layer of the plurality of layers of the semiconductor layer is a ratio of a crystalline oxide semiconductor, included in the layer of the plurality of layers of the semiconductor layer, to an amorphous oxide semiconductor, included in the layer of the plurality of layers of the semiconductor layer. A first layer of the plurality of layers of the semiconductor layer has a different crystallinity with respect to a second layer of the plurality of layers of the semiconductor layer.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Wook Woo, Chang Ho Lee, Kyung Lae Rho, Doo Hyoung Lee, Sung Chan Jo, Sang Woo Sohn, Sang Won Shin, Soo Im Jeong, Chang Yong Jeong
  • Patent number: 10297789
    Abstract: A display apparatus may include a substrate. The display apparatus may further include a display unit that includes an emission layer and is disposed on the substrate. The display apparatus may further include a protective layer that overlaps the display unit. The display apparatus may further include an organic layer that is disposed between the display unit and the protective layer. A top surface area of the organic layer may be equal to or less than a top surface area of the protective layer.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: May 21, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Kyu Jang, Chang-Yong Jeong
  • Publication number: 20180190204
    Abstract: A scan driver, includes a plurality of stage circuits, each of which includes a driving circuit unit providing an output signal and an inverter inverting the output signal of the driving circuit unit and generating a scan signal, in which the inverter includes a first transistor and a second transistor, which are complementarily operated, the first transistor is a P-type polysilicon transistor, and the second transistor is an N-type oxide semiconductor transistor. A display device may include the scan driver.
    Type: Application
    Filed: December 17, 2017
    Publication date: July 5, 2018
    Inventors: Kyoung Ju SHIN, Cheol Gon Lee, Sang Uk Lim, Chang Yong Jeong
  • Patent number: 9980373
    Abstract: A foldable display is disclosed. In one aspect, the foldable display includes a bendable display panel and a housing positioned at a rear side of the display panel and configuration to be folded and unfolded. The foldable display also includes a sliding unit installed between the display panel and the housing and configured to slide the display panel along the housing so as to alter a bending region of the display panel that is folded when the foldable display is folded.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: May 22, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Yong Jeong, Ji Won Sohn
  • Patent number: 9966568
    Abstract: Provided is an organic light emitting display apparatus. The organic light emitting display apparatus includes: a substrate; a display unit disposed on the substrate; an encapsulation layer covering the display unit; an integrated circuit device disposed on an outer portion of the display unit on the substrate; and a transparent protection unit (window) disposed on the encapsulation layer and separated from the integrated circuit device.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: May 8, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Yong Jeong, Mu-Gyeom Kim
  • Publication number: 20180040852
    Abstract: Provided is an organic light emitting display apparatus. The organic light emitting display apparatus includes: a substrate; a display unit disposed on the substrate; an encapsulation layer covering the display unit; an integrated circuit device disposed on an outer portion of the display unit on the substrate; and a transparent protection unit (window) disposed on the encapsulation layer and separated from the integrated circuit device.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Inventors: Chang-Yong JEONG, Mu-Gyeom KIM
  • Publication number: 20180040739
    Abstract: A transistor includes a gate electrode, a semiconductor layer overlapping the gate electrode, the semiconductor layer including an oxide semiconductor, and a source electrode and a drain electrode spaced apart from the source electrode, wherein the source and drain electrodes are connected to the semiconductor layer. The semiconductor layer includes a plurality of layers, wherein a crystallinity of a layer of the plurality of layers of the semiconductor layer is a ratio of a crystalline oxide semiconductor, included in the layer of the plurality of layers of the semiconductor layer, to an amorphous oxide semiconductor, included in the layer of the plurality of layers of the semiconductor layer. A first layer of the plurality of layers of the semiconductor layer has a different crystallinity with respect to a second layer of the plurality of layers of the semiconductor layer.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 8, 2018
    Inventors: SUNG WOOK WOO, Chang Ho Lee, Kyung Lae Rho, Doo Hyoung Lee, Sung Chan Jo, Sang Woo Sohn, Sang Won Shin, Soo Im Jeong, Chang Yong Jeong
  • Patent number: 9793510
    Abstract: Provided is an organic light emitting display apparatus. The organic light emitting display apparatus includes: a substrate; a display unit disposed on the substrate; an encapsulation layer covering the display unit; an integrated circuit device disposed on an outer portion of the display unit on the substrate; and a transparent protection unit (window) disposed on the encapsulation layer and separated from the integrated circuit device.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Yong Jeong, Mu-Gyeom Kim
  • Patent number: 9755182
    Abstract: Provided is an organic light emitting diode display including a substrate; a display unit formed on the substrate and including a thin film transistor and an organic light emitting diode; a thin film encapsulation covering and encapsulating the display unit and formed by a laminated structure made of at least one first inorganic layer, a first organic layer, and a second inorganic layer; and a protective bezel fixed to the substrate and spaced apart from the side of the substrate to surround edges of the substrate and the thin film encapsulation.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: September 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Yong Jeong, Mu Gyeom Kim, Yong Il Kim
  • Patent number: 9728743
    Abstract: An organic light emitting diode display includes a display substrate including an organic light emitting element and a driving circuit part, an encapsulation substrate sealing the display substrate, and a sealing portion between the display substrate and the encapsulation substrate, the sealing portion including a plurality of sealing frame portions around the display substrate, and a first sealing frame portion of the plurality of sealing frame portions being adjacent to a pad portion, wherein at least one of a width of an edge of the sealing portion and a width of the first sealing frame portion is wider than a width of a sealing frame portion other than the first sealing frame portion.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: August 8, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Yong Jeong, Myung Suk Han
  • Patent number: D786864
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Kyoung-Eun Lee, Chang Yong Jeong
  • Patent number: D786865
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Kyoung-Eun Lee, Chang Yong Jeong
  • Patent number: D786866
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Jung Hyun Kim, Chang Yong Jeong
  • Patent number: D786867
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Jung Hyun Kim, Chang Yong Jeong
  • Patent number: D790540
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Kyoung-Eun Lee, Chang Yong Jeong
  • Patent number: D802590
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Kyoung-Eun Lee, Chang Yong Jeong
  • Patent number: D802591
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Kyoung-Eun Lee, Chang Yong Jeong
  • Patent number: D810741
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Kyoung-Eun Lee, Chang Yong Jeong
  • Patent number: D811395
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Sung Bae, Mu Gyeom Kim, Jung Hyun Kim, Chang Yong Jeong