Patents by Inventor Hak-Bum CHOI

Hak-Bum CHOI 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: 20210018777
    Abstract: A display device includes: a first substrate that includes a plurality of first pads arranged in a first direction and a plurality of second pads arranged in parallel with the plurality of first pads; a second substrate that overlaps the first substrate and includes a second substrate including one edge exposing the plurality of first pads and the plurality of second pads; a first flexible printed circuit board that is electrically connected with the plurality of first pads; a second flexible printed circuit board that overlaps the first flexible printed circuit board and is electrically connected with the plurality of second pads; a protective layer that covers the first flexible printed circuit board and the second flexible printed circuit board from one edge of the second substrate to a width including the plurality of first pads and the plurality of second pads; and a blocking portion disposed on the first substrate at a distance from one edge of the second substrate by a width of the protective layer and
    Type: Application
    Filed: February 4, 2020
    Publication date: January 21, 2021
    Inventors: Yoo Jeong LEE, Seung Jae KANG, Po-Yun PARK, Hak Bum CHOI
  • Patent number: 9261749
    Abstract: A display device includes gate lines, data lines, first wires and second wires extending in the directions of the gate lines and data lines, and pixels having a first subpixel and a second subpixel each. The first subpixel has a first subpixel electrode and a first switching element, and the second subpixel has a second subpixel electrode and second and third switching elements. The control terminals of the three switching elements are connected to the same gate line, and the input terminals of the first and second switching elements are connected to the same data line. The first and second switching elements have output terminals connected to the first and second subpixel electrodes, respectively. The second switching element's output terminal connects to the third switching element, which has an output terminal connected to a second wire. The first wires and the second wires are connected in a pixel.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hwa Park, Jong-In Kim, Yeo Geon Yoon, Min-Wook Park, Jang-Il Kim, Joon-Chul Goh, Hyo-Seop Kim, Bum Ki Baek, Young-Soo Yoon, Hak Bum Choi, Kyung Ho Kim
  • Publication number: 20150115275
    Abstract: A display device includes gate lines, data lines, first wires and second wires extending in the directions of the gate lines and data lines, and pixels having a first subpixel and a second subpixel each. The first subpixel has a first subpixel electrode and a first switching element, and the second subpixel has a second subpixel electrode and second and third switching elements. The control terminals of the three switching elements are connected to the same gate line, and the input terminals of the first and second switching elements are connected to the same data line. The first and second switching elements have output terminals connected to the first and second subpixel electrodes, respectively. The second switching element's output terminal connects to the third switching element, which has an output terminal connected to a second wire. The first wires and the second wires are connected in a pixel.
    Type: Application
    Filed: January 7, 2015
    Publication date: April 30, 2015
    Inventors: Jae Hwa PARK, Jong-In KIM, Yeo Geon YOON, Min Wook PARK, Jang-Il KIM, Joon-Chul GOH, Hyo-Seop KIM, Bum Ki BAEK, Young-Soo YOON, Hak Bum CHOI, Kyung Ho KIM
  • Patent number: 8952878
    Abstract: A display device includes gate lines, data lines, first wires and second wires extending in the directions of the gate lines and data lines, and pixels having a first subpixel and a second subpixel each. The first subpixel has a first subpixel electrode and a first switching element, and the second subpixel has a second subpixel electrode and second and third switching elements. The control terminals of the three switching elements are connected to the same gate line, and the input terminals of the first and second switching elements are connected to the same data line. The first and second switching elements have output terminals connected to the first and second subpixel electrodes, respectively. The second switching element's output terminal connects to the third switching element, which has an output terminal connected to a second wire. The first wires and the second wires are connected in a pixel.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: February 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hwa Park, Yeo Geon Yoon, Jang-Il Kim, Kyung Ho Kim, Jong-In Kim, Min-Wook Park, Bum Ki Baek, Joon-Chul Goh, Young-Soo Yoon, Hak Bum Choi, Hyo-Seop Kim
  • Patent number: 8912991
    Abstract: A liquid crystal display includes: a first gate line; a first data line crossing the first gate line; a first switching element connected with the first gate line and the first data line; a second switching element connected with the first gate line and the first data line; a first liquid crystal capacitor connected with the first switching element; a second liquid crystal capacitor connected with the second switching element; a boost switching element which is turned on during a time period not overlapping a time period during which the first switching element is turned on; and a boost capacitor including a first terminal connected with the boost switching element and a second terminal connected with the first liquid crystal capacitor.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: December 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-In Kim, Min-Wook Park, Eun-Guk Lee, Young-Goo Song, Kyoung-Tai Han, Hyuk-Jin Kim, Hak-Bum Choi, Hyo-Seop Kim
  • Publication number: 20130093658
    Abstract: A display device includes gate lines, data lines, first wires and second wires extending in the directions of the gate lines and data lines, and pixels having a first subpixel and a second subpixel each. The first subpixel has a first subpixel electrode and a first switching element, and the second subpixel has a second subpixel electrode and second and third switching elements. The control terminals of the three switching elements are connected to the same gate line, and the input terminals of the first and second switching elements are connected to the same data line. The first and second switching elements have output terminals connected to the first and second subpixel electrodes, respectively. The second switching element's output terminal connects to the third switching element, which has an output terminal connected to a second wire. The first wires and the second wires are connected in a pixel.
    Type: Application
    Filed: June 14, 2012
    Publication date: April 18, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hwa PARK, Yeo Geon YOON, Jang-Il KIM, Kyung Ho KIM, Jong-In KIM, Min-Wook PARK, Bum Ki BAEK, Joon-Chul GOH, Young-Soo YOON, Hak Bum CHOI, Hyo-Seop KIM
  • Publication number: 20120236222
    Abstract: A liquid crystal display includes: a first gate line; a first data line crossing the first gate line; a first switching element connected with the first gate line and the first data line; a second switching element connected with the first gate line and the first data line; a first liquid crystal capacitor connected with the first switching element; a second liquid crystal capacitor connected with the second switching element; a boost switching element which is turned on during a time period not overlapping a time period during which the first switching element is turned on; and a boost capacitor including a first terminal connected with the boost switching element and a second terminal connected with the first liquid crystal capacitor.
    Type: Application
    Filed: July 22, 2011
    Publication date: September 20, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-In KIM, Min-Wook PARK, Eun-Guk LEE, Young-Goo SONG, Kyoung-Tai HAN, Hyuk-Jin KIM, Hak-Bum CHOI, Hyo-Seop KIM