Patents by Inventor Dong il Yoo

Dong il Yoo 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: 20240405028
    Abstract: A display device may include first, second, and third sub-pixels. Each of the first, second, and third sub-pixels may include: a pixel circuit layer including first, second, and third transistors disposed on a substrate, and a bridge pattern disposed on a gate electrode of the first transistor and a source electrode of the second transistor, a first end of the bridge pattern is electrically connected to the source electrode of the second transistor and a second end of the bridge pattern is electrically connected to the gate electrode of the first transistor; first and second alignment electrodes disposed on the pixel circuit layer; and light emitting elements disposed on the first and second alignment electrodes and electrically connected to at least one of the first, second, and third transistors. The second alignment electrode may be supplied with a low potential voltage and overlap the bridge pattern in a plan view.
    Type: Application
    Filed: May 31, 2024
    Publication date: December 5, 2024
    Inventors: Dong Il YOO, Jung Suk BANG, Min KANG, Myung Hun LIM
  • Publication number: 20240341141
    Abstract: A display device includes: a first pixel and a second pixel, including: a first transistor comprising a first active region, a first drain electrode, and a first source electrode respectively on one side and another side of the first active region, and a first gate electrode overlapping the first active region, a first capacitor electrode connected to the first gate electrode and overlapping the first source electrode, and a light emitting element connected to the first transistor, wherein a first end of the first source electrode of the first pixel, and a second end of the first source electrode of the second pixel face each other, a third end of the first capacitor electrode of the first pixel, and a fourth end of the first capacitor electrode of the second pixel face each other, and the first end is between the third end and the fourth end.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 10, 2024
    Inventors: Jung Suk BANG, Sun Kwun SON, Dong Hee SHIN, Dong Il YOO, Myung Hun LIM
  • Patent number: 11215892
    Abstract: The display device according to an exemplary embodiment of the present inventive concept includes: a signal line extending in a direction perpendicular to a first direction; a transistor electrically connected to the signal line; and a pixel electrode electrically connected to the transistor and including a branch electrode, wherein the branch electrode incudes a first portion and a second portion extending from the first portion and extending in a direction different from an extending direction of the first portion, an acute angle formed between an extending direction of the second portion and the first direction is smaller than an acute angle formed between the extending direction of the first portion and the first direction, and the signal line overlaps the second portion in a plan view.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: January 4, 2022
    Inventors: Kyeong Hwan Shin, Kyu Su Ahn, Dong Il Yoo
  • Publication number: 20210132456
    Abstract: The present disclosure relates to a display device. The display device according to an exemplary embodiment of the present inventive concept includes: a signal line extending in a direction perpendicular to a first direction; a transistor electrically connected to the signal line; and a pixel electrode electrically connected to the transistor and including a branch electrode, wherein the branch electrode incudes a first portion and a second portion extending from the first portion and extending in a direction different from an extending direction of the first portion, an acute angle formed between an extending direction of the second portion and the first direction is smaller than an acute angle formed between the extending direction of the first portion and the first direction, and the signal line overlaps the second portion in a plan view.
    Type: Application
    Filed: May 28, 2020
    Publication date: May 6, 2021
    Inventors: Kyeong Hwan SHIN, Kyu Su AHN, Dong Il YOO
  • Patent number: 10222664
    Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il Joo Kim, Cheol Gon Lee, Gun Woo Yang, Hyun Young Choi, Tae Ho Kang, Chol Ho Kim, Hae Ryeong Park, Dong Il Yoo, Yong Woo Lee, Mee Hye Jung, Joong Gun Chong
  • Patent number: 9846339
    Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 19, 2017
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Tae Ho Kang, Hae Ryeong Park, Yong Jo Kim, Dong Il Yoo, Tae Kyung Yim, Nak Cho Choi
  • Publication number: 20170322468
    Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.
    Type: Application
    Filed: November 8, 2016
    Publication date: November 9, 2017
    Inventors: Il Joo KIM, Cheol Gon LEE, Gun Woo YANG, Hyun Young CHOI, Tae Ho KANG, Chol Ho KIM, Hae Ryeong PARK, Dong Il YOO, Yong Woo LEE, Mee Hye JUNG, Joong Gun CHONG
  • Publication number: 20170123280
    Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.
    Type: Application
    Filed: June 15, 2016
    Publication date: May 4, 2017
    Inventors: Tae Ho KANG, Hae Ryeong PARK, Yong Jo KIM, Dong Il YOO, Tae Kyung YIM, Nak Cho CHOI
  • Patent number: 9519194
    Abstract: A liquid crystal display, including: a first substrate; a gate line and a data line disposed on the first substrate; a pixel electrode disposed on the first substrate and including a stem portion and a plurality of branch electrodes that extends obliquely from the stem portion; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, and the pixel electrode further includes a plurality of oblique portions disposed between the plurality of branch electrodes and the stem portion, and the plurality of oblique portions extends in a direction different from a direction in which the plurality of branch electrodes extends.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: December 13, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Hwan Lee, Hae Ryeong Park, Dong Il Yoo, Mun-Soo Park, Kyu Su Ahn, Yong Woo Lee
  • Publication number: 20150009442
    Abstract: A liquid crystal display, including: a first substrate; a gate line and a data line disposed on the first substrate; a pixel electrode disposed on the first substrate and including a stem portion and a plurality of branch electrodes that extends obliquely from the stem portion; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, and the pixel electrode further includes a plurality of oblique portions disposed between the plurality of branch electrodes and the stem portion, and the plurality of oblique portions extends in a direction different from a direction in which the plurality of branch electrodes extends.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Inventors: Hee Hwan Lee, Hae Ryeong Park, Dong il Yoo, Mun-Soo Park, Kyu Su Ahn, Yong Woo Lee