Patents by Inventor Hwan-Soo Jang

Hwan-Soo Jang 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: 20220157242
    Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: MI HAE KIM, MIN KYU WOO, YOUNG TAEG JUNG, HYUN CHOL BANG, SANG WON SEOK, HWAN SOO JANG, JU HEE HYEON
  • Patent number: 11335856
    Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Jae-Yong Lee
  • Patent number: 11250776
    Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: February 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Hae Kim, Min Kyu Woo, Young Taeg Jung, Hyun Chol Bang, Sang Won Seok, Hwan Soo Jang, Ju Hee Hyeon
  • Patent number: 11217179
    Abstract: Provided herein is a scan driver including scan stages. A first scan stage includes a first transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power clock line, and a second electrode coupled to a first scan line; a first capacitor connected between the first node and the first scan line; a second transistor including a gate electrode coupled to a second node, a first electrode coupled to the first scan line, and a second electrode coupled to a first power line; a third transistor including a gate electrode coupled to the second node, a first electrode coupled to a third node, and a second electrode coupled to a first control clock line; and a second capacitor connected between the second node and the third node.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: January 4, 2022
    Inventor: Hwan Soo Jang
  • Publication number: 20210343227
    Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines
    Type: Application
    Filed: July 4, 2021
    Publication date: November 4, 2021
    Inventors: Kyong Hwan Oh, Ji Hyun Ka, Ki Myeong Eom, Hai Jung In, Jin Jeon, Won Kyu Kwak, Hyun Lee, Hwan Soo Jang, Jin Tae Jeong
  • Publication number: 20210312845
    Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Seung-Kyu Lee
  • Publication number: 20210296405
    Abstract: A display device includes a substrate, a pixel area, and a plurality of data lines. The substrate includes display and non-display areas. The pixel area is in the display area and includes a first pixel column and a second pixel column. The pixels in the first and second columns emit light of different colors. The data lines are respectively coupled to the first pixel column and the second pixel column. In the non-display area, a data line is coupled to one of the first or second pixel columns corresponding to a color on which influence of a resistance is greater than on another color. The data lines has a line or contact structure with a resistance less than a resistance of a line or contact structure of a remaining data line coupled to a remaining pixel column.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Sun Ja KWON, Won Kyu KWAK, Hwan Soo JANG, Seung Yeon CHO, Hyun Ae PARK
  • Patent number: 11087654
    Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: August 10, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Seung-Kyu Lee
  • Patent number: 11056043
    Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: July 6, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Hwan Oh, Ji Hyun Ka, Ki Myeong Eom, Hai Jung In, Jin Jeon, Won Kyu Kwak, Hyun Lee, Hwan Soo Jang, Jin Tae Jeong
  • Patent number: 11031436
    Abstract: A display device includes a substrate, a pixel area, and a plurality of data lines. The substrate includes display and non-display areas. The pixel area is in the display area and includes a first pixel column and a second pixel column. The pixels in the first and second columns emit light of different colors. The data lines are respectively coupled to the first pixel column and the second pixel column. In the non-display area, a data line is coupled to one of the first or second pixel columns corresponding to a color on which influence of a resistance is greater than on another color. The data lines has a line or contact structure with a resistance less than a resistance of a line or contact structure of a remaining data line coupled to a remaining pixel column.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 8, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Ja Kwon, Won Kyu Kwak, Hwan Soo Jang, Seung Yeon Cho, Hyun Ae Park
  • Publication number: 20210158760
    Abstract: Provided herein is a scan driver including scan stages. A first scan stage includes a first transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power clock line, and a second electrode coupled to a first scan line; a first capacitor connected between the first node and the first scan line; a second transistor including a gate electrode coupled to a second node, a first electrode coupled to the first scan line, and a second electrode coupled to a first power line; a third transistor including a gate electrode coupled to the second node, a first electrode coupled to a third node, and a second electrode coupled to a first control clock line; and a second capacitor connected between the second node and the third node.
    Type: Application
    Filed: June 12, 2020
    Publication date: May 27, 2021
    Inventor: Hwan Soo JANG
  • Publication number: 20210134213
    Abstract: A light emission control driver includes stages, each including: an input circuit controlling voltages of first and second nodes (N1, N2) based on a first clock signal (CS) and one of a start signal and a carry signal; a first main circuit controlling a voltage of a third node (N3) based on the voltage of N1 and a second CS; a second main circuit controlling the voltage of N3 based on the voltage of N2; an output circuit controlling output of an emission control signal (ECS) based on the voltages of N2 and N3; a first auxiliary circuit controlling a low level output of the ECS from a first low level to a second low level based on the second CS; and a second auxiliary circuit controlling the low level output in a single step from a high level to the second low level based on the voltage of N2.
    Type: Application
    Filed: August 28, 2020
    Publication date: May 6, 2021
    Inventor: Hwan Soo JANG
  • Publication number: 20210091168
    Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Sang Moo CHOI, Mi Hae KIM, Sang Won SEOK, Hwan Soo JANG, Su Jin LEE
  • Publication number: 20210057515
    Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between tine display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.
    Type: Application
    Filed: November 5, 2020
    Publication date: February 25, 2021
    Inventors: JI-HYUN KA, SEUNG-KYU LEE, HWAN-SOO JANG, JIN-TAE JEONG
  • Patent number: 10886359
    Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: January 5, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Moo Choi, Mi Hae Kim, Sang Won Seok, Hwan Soo Jang, Su Jin Lee
  • Publication number: 20200410935
    Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: MI HAE KIM, MIN KYU WOO, YOUNG TAEG JUNG, HYUN CHOL BANG, SANG WON SEOK, HWAN SOO JANG, JU HEE HYEON
  • Publication number: 20200394950
    Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines
    Type: Application
    Filed: June 2, 2020
    Publication date: December 17, 2020
    Inventors: Kyong Hwan OH, Ji Hyun Ka, Ki Myeong Eom, Hai Jung In, Jin Jeon, Won Kyu Kwak, Hyun Lee, Hwan Soo Jang, Jin Tae Jeong
  • Patent number: 10854705
    Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Hyun Ka, Seung-Kyu Lee, Hwan-Soo Jang, Jin-Tae Jeong
  • Patent number: 10796636
    Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Hae Kim, Min Kyu Woo, Young Taeg Jung, Hyun Chol Bang, Sang Won Seok, Hwan Soo Jang, Ju Hee Hyeon
  • Patent number: RE48358
    Abstract: An emission control driver includes stages sequentially outputting emission control signals through emission control lines. Each stage includes a first signal processor receiving a first voltage and generating first and second signals in response to first and second sub-control signals, a second signal processor receiving a second voltage having a level higher than a level of the first voltage and generating third and fourth signals in response to the third sub-control signal, the first signal, and the second signal, and a third signal processor receiving the first and second voltages and generating the emission control signal in response to the third and fourth signals. The first signal processor of each stage receives the emission control signal output from a previous stage as the first sub-control signal, and the first signal processor of a first stage among the stages receives a start signal as the first sub-control signal.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: December 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hwan Soo Jang