Patents by Inventor Dan Bi YANG

Dan Bi 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: 11003027
    Abstract: A liquid crystal display includes: a first pixel and a second pixel for displaying different colors, the first pixel and the second pixel each including a first sub-pixel electrode receiving a first voltage; a second sub-pixel electrode receiving a second voltage; an insulating layer disposed between the first sub-pixel electrode and the second sub-pixel electrode; and a common electrode receiving a common voltage. A first portion of the first sub-pixel electrode and a second portion of the second sub-pixel electrode overlap each other, a difference between the first voltage and the common voltage is larger than a difference between the second voltage and the common voltage, and a ratio of the second voltage to the first voltage for the first pixel is different from a ratio of the second voltage to the first voltage for the second pixel.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: May 11, 2021
    Inventors: Min-Joo Han, Hyo Sik Kim, Kyu Su Ahn, Dan Bi Yang, Hee Hwan Lee, Hoon Kim, Ki Chui Shin
  • Patent number: 10788714
    Abstract: A liquid crystal display includes a first substrate, pixel electrodes disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode separated from each other and positioned in one pixel area, gate lines connected to the pixel electrodes, data lines connected to the pixel electrodes, reference voltage lines connected to the second sub-pixel electrode of the pixel electrodes, a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer positioned between the first substrate and the second substrate and including liquid crystal molecules, a first initial pretilt angle of the liquid crystal molecules corresponding to the first sub-pixel electrode for the second substrate surface is larger than a second initial pretilt angle of the liquid crystal molecules corresponding to the second sub-pixel electrode for the second substrate surface.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: September 29, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Heung Shik Park, Jae Hoon Jung, Dan Bi Yang, Min-Joo Han, Ji Phyo Hong, Ki Chul Shin
  • Publication number: 20200201125
    Abstract: A liquid crystal display includes: a first pixel and a second pixel for displaying different colors, the first pixel and the second pixel each including a first sub-pixel electrode receiving a first voltage; a second sub-pixel electrode receiving a second voltage; an insulating layer disposed between the first sub-pixel electrode and the second sub-pixel electrode; and a common electrode receiving a common voltage. A first portion of the first sub-pixel electrode and a second portion of the second sub-pixel electrode overlap each other, a difference between the first voltage and the common voltage is larger than a difference between the second voltage and the common voltage, and a ratio of the second voltage to the first voltage for the first pixel is different from a ratio of the second voltage to the first voltage for the second pixel.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Inventors: Min-Joo HAN, Hyo Sik KIM, Kyu Su AHN, Dan Bi YANG, Hee Hwan LEE, Hoon KIM, Ki Chul SHIN
  • Patent number: 10663802
    Abstract: A liquid crystal display includes: a first pixel and a second pixel for displaying different colors, the first pixel and the second pixel each including a first sub-pixel electrode receiving a first voltage; a second sub-pixel electrode receiving a second voltage; an insulating layer disposed between the first sub-pixel electrode and the second sub-pixel electrode; and a common electrode receiving a common voltage. A first portion of the first sub-pixel electrode and a second portion of the second sub-pixel electrode overlap each other, a difference between the first voltage and the common voltage is larger than a difference between the second voltage and the common voltage, and a ratio of the second voltage to the first voltage for the first pixel is different from a ratio of the second voltage to the first voltage for the second pixel.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Joo Han, Hyo Sik Kim, Kyu Su Ahn, Dan Bi Yang, Hee Hwan Lee, Hoon Kim, Ki Chul Shin
  • Publication number: 20190346721
    Abstract: A liquid crystal display includes a first substrate, pixel electrodes disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode separated from each other and positioned in one pixel area, gate lines connected to the pixel electrodes, data lines connected to the pixel electrodes, reference voltage lines connected to the second sub-pixel electrode of the pixel electrodes, a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer positioned between the first substrate and the second substrate and including liquid crystal molecules, a first initial pretilt angle of the liquid crystal molecules corresponding to the first sub-pixel electrode for the second substrate surface is larger than a second initial pretilt angle of the liquid crystal molecules corresponding to the second sub-pixel electrode for the second substrate surface.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Inventors: Heung Shik PARK, Jae Hoon JUNG, Dan Bi YANG, Min-Joo HAN, Ji Phyo HONG, Ki Chul SHIN
  • Patent number: 10276721
    Abstract: A liquid crystal display includes a first gate line, a first data line, and a first pixel. The first pixel includes: a first subpixel including a first thin film transistor connected to the first gate line and data line, and a first liquid crystal capacitor, wherein a first terminal of the first liquid crystal capacitor is electrically connected to the first thin film transistor and a second terminal of the first liquid crystal capacitor is configured to receive a common voltage; and a second subpixel including a second thin film transistor connected to the first gate line and data line, a second liquid crystal capacitor, wherein a first terminal of the second liquid crystal capacitor is configured to receive the common voltage, and a thin film transistor resistor electrically connected between the second thin film transistor and a second terminal of the second liquid crystal capacitor.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: April 30, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Jung, Heung Shik Park, Ki Chul Shin, Dan Bi Yang, Min-Joo Han, Ji Phyo Hong
  • Patent number: 9897884
    Abstract: A liquid crystal display (“LCD”) device includes: a first display panel including a first substrate, a first pixel electrode disposed on the first substrate, and a second pixel electrode disposed on the first substrate and insulated from the first pixel electrode; a second display panel including a second substrate opposite to the first substrate, and a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first and second display panels and including a plurality of liquid crystal molecules. In a black state, no voltage is applied to the common electrode and an electric field is generated between the first and second pixel electrodes in a way such that the liquid crystal molecules are aligned in a vertical direction with respect to the first substrate.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Min Ju Han, Dan Bi Yang, Ji Phyo Hong
  • Patent number: 9846342
    Abstract: A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode positioned on the first substrate, connected to the thin film transistor, configured to be applied with a first voltage, and including a first sub-pixel electrode including a first sub-region and a second sub-region and a second sub-pixel electrode configured to be applied with a second voltage; a protrusion electrode protruding from the pixel electrode to overlap the data line; and an insulating layer positioned on the first sub-region of the first sub-pixel electrode and positioned under the second sub-pixel electrode and the second sub-region of the first sub-pixel electrode, wherein the first sub-region of the first sub-pixel electrode overlaps the second sub-pixel electrode.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: December 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Jung, Ki Chul Shin, Dan Bi Yang, Min Joo Han, Ji Phyo Hong
  • Patent number: 9812055
    Abstract: A display device includes: a common electrode and a pixel electrode that includes a horizontal stem, a vertical stem, and a branch. A pixel of the branch includes a first branch that extends in a first diagonal direction from the horizontal stem and the vertical stem, and a second branch that extends in a second diagonal direction from the horizontal stem and the vertical stem.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hoon Jung, Dan Bi Yang, Ji Phyo Hong, Ki Chul Shin
  • Patent number: 9799684
    Abstract: A liquid crystal display includes a first substrate, a gate line and a data line disposed on the first substrate, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a first subpixel electrode connected to the first thin film transistor, a resistor connected to the second thin film transistor and a resistance of the resistor is changed by a pulsed gate-on signal applied to the gate line, and a second subpixel electrode connected to the resistor.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hoon Jung, Dan Bi Yang, Min-Joo Han, Ji Phyo Hong, Heung Shik Park, Ki Chul Shin
  • Patent number: 9720291
    Abstract: A liquid crystal display includes: a first substrate; a gate line disposed on the first substrate; an insulating layer disposed on the gate line; and first and second subpixel electrodes respectively including pixel branch electrodes, wherein the first and second subpixel electrodes respectively comprise first and second regions, the first and second regions of the first subpixel electrode have a polygonal shape where two sides meet in a diagonal line, and one of sides of the polygon, excluding the diagonal line, is perpendicular to the gate line, the first and second regions of the second subpixel electrode have grooves disposed at one of sides thereof corresponding to the shape of the first subpixel electrode, the first and second regions of the first subpixel electrode are connected with each other, and the first and second regions of the second subpixel electrode are connected with each other.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 1, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hoon Kim, Ki Chul Shin, Dan Bi Yang
  • Publication number: 20170176785
    Abstract: A liquid crystal display (“LCD”) device includes: a first display panel including a first substrate, a first pixel electrode disposed on the first substrate, and a second pixel electrode disposed on the first substrate and insulated from the first pixel electrode; a second display panel including a second substrate opposite to the first substrate, and a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first and second display panels and including a plurality of liquid crystal molecules. In a black state, no voltage is applied to the common electrode and an electric field is generated between the first and second pixel electrodes in a way such that the liquid crystal molecules are aligned in a vertical direction with respect to the first substrate.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 22, 2017
    Inventors: Min Ju HAN, Dan Bi YANG, Ji Phyo HONG
  • Patent number: 9671656
    Abstract: There is provided a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode. The first subpixel electrode includes a first cross stem portion positioned in a first subpixel region and first minute branches extending from the first cross stem portion, and includes first and second body portions that are positioned in a third subpixel region and separated from each other, and a plurality of first and second slit portions that extend from the first and second body portions, respectively. The second subpixel electrode includes a second cross stem portion positioned in a second subpixel region and second minute branches that extend from the second cross stem portion, and includes a third cross stem portion positioned in a third subpixel region and third minute branches that extend from the third cross stem portion.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Jung, Dan Bi Yang, Min-Joo Han, Ji Phyo Hong, Ki Chul Shin
  • Publication number: 20170115536
    Abstract: A display device according to an exemplary embodiment includes a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected to the thin film transistor; a first common electrode overlapping the pixel electrode via an insulating layer; a second common electrode spaced apart from the first common electrode with a plurality of microcavities therebetween; a roof layer disposed on the second common electrode; a liquid crystal layer including liquid crystal molecules disposed in the microcavities; and an encapsulation layer disposed on the roof layer and sealing the microcavities.
    Type: Application
    Filed: May 13, 2016
    Publication date: April 27, 2017
    Inventors: Dan Bi YANG, Dong Han SONG, Min-Joo HAN, Ji Phyo HONG
  • Patent number: 9632376
    Abstract: A liquid crystal display device includes: a first substrate for which a single pixel includes: first, second and third thin film transistors on the first substrate; a pixel electrode including a first subpixel electrode and a second subpixel electrode which are connected to the first thin film transistor and the second thin film transistor, respectively; and a divided reference voltage line connected to the third thin film transistor; a second substrate facing the first substrate; a common electrode on the second substrate; and a liquid crystal layer between the pixel electrode and the common electrode and including liquid crystal molecules. The third thin film transistor includes an electrically floating gate electrode, a source electrode defined by an extended portion of a terminal of the second thin film transistor, and a drain electrode defined by an extended portion of the divided reference voltage line.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Joo Han, Dan Bi Yang, Ji Phyo Hong, Ki Chul Shin
  • Patent number: 9618808
    Abstract: A liquid crystal display includes: a first subpixel electrode disposed on a first substrate; an insulating layer disposed on the first subpixel electrode; a second subpixel electrode disposed on the insulating layer; and a common electrode disposed on a second substrate, the second substrate facing the first substrate. The first subpixel electrode is overlapped with a portion of the second subpixel electrode, and the first subpixel electrode and the second subpixel electrode are configured to receive substantially the same electric potential.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: April 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hoon Kim, Ki Chul Shin, Dan Bi Yang, Ji Phyo Hong
  • Patent number: 9613579
    Abstract: A liquid crystal display including a first substrate, a first sub-pixel electrode on the first substrate and configured to receive a first voltage, a second sub-pixel electrode on the first substrate and configured to receive a second voltage, an insulating layer between the first sub-pixel electrode and the second sub-pixel electrode, a second substrate facing the first substrate, and a common electrode on the second substrate, wherein the first sub-pixel electrode includes a first sub-region below the insulating layer and a second sub-region above the insulating layer, wherein the second sub-region of the first sub-pixel electrode includes a plurality of first branch electrodes, wherein the second sub-pixel electrode is above the insulating layer, and wherein a difference between the first voltage and a common voltage is greater than a difference between the second voltage and the common voltage.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Jung, Hyo Sik Kim, Ki Chul Shin, Dan Bi Yang, Ji Phyo Hong
  • Patent number: 9557613
    Abstract: A liquid crystal display includes a first substrate, a pixel electrode formed on the first substrate, a second substrate facing the first substrate, and a common electrode formed on the second substrate. The pixel electrode includes a first subpixel electrode disposed in a first subpixel region, and a second subpixel electrode disposed in a second subpixel region. A first voltage applied to the first subpixel electrode and a second voltage applied to the second subpixel electrode are different from each other, and a ratio of the first voltage to the second voltage is about 0.76 to about 0.80.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hoon Jung, Hoon Kim, Cheol Shin, Ka Eun Kim, Su Jeong Kim, Ki Chul Shin, Ho Kil Oh, Min Ju Han, Dan Bi Yang, Ji Phyo Hong
  • Patent number: 9529234
    Abstract: Provided is a liquid crystal display including: a first substrate; a first subpixel electrode which is positioned on the first substrate, to which a first voltage is configured to be applied, and which includes first and second subregions; a second subpixel electrode which is positioned on the first substrate, to which a second voltage is configured to be applied, and which includes a third, fourth, and fifth subregions; an insulating layer which is positioned on the first subregion and the third subregion and positioned below the second subregion and the fourth and fifth subregions; a second substrate facing the first substrate; a common electrode which is positioned on the second substrate and to which a common voltage is configured to be applied; and a liquid crystal layer positioned between the first substrate and the second substrate, in which the first subregion and the fourth subregion overlap with each other.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo Sik Kim, Dan Bi Yang, Min Joo Han
  • Publication number: 20160357069
    Abstract: A liquid crystal display includes a first substrate, pixel electrodes disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode separated from each other and positioned in one pixel area, gate lines connected to the pixel electrodes, data lines connected to the pixel electrodes, reference voltage lines connected to the second sub-pixel electrode of the pixel electrodes, a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer positioned between the first substrate and the second substrate and including liquid crystal molecules, a first initial pretilt angle of the liquid crystal molecules corresponding to the first sub-pixel electrode for the second substrate surface is larger than a second initial pretilt angle of the liquid crystal molecules corresponding to the second sub-pixel electrode for the second substrate surface.
    Type: Application
    Filed: April 27, 2016
    Publication date: December 8, 2016
    Inventors: Heung Shik PARK, Jae Hoon JUNG, Dan Bi YANG, Min-Joo HAN, Ji Phyo HONG, Ki Chul SHIN