Patents by Inventor Hai-Jung In

Hai-Jung In 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: 11341875
    Abstract: A display device including: a substrate including a display area and a peripheral area peripheral to the display area; a plurality of pads disposed in a pad area, wherein the pad area is disposed in the peripheral area and the pad area includes an integrated circuit (IC); and a first crack detecting line connected to a first pad and a second pad at a first node, and a third pad at a second node, wherein the first crack detecting line is disposed in the peripheral area between the first node and the second node.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang Sae Lee, Ji-Hyun Ka, Won Kyu Kwak, Ki Myeong Eom, Hai-Jung In
  • Publication number: 20220157226
    Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 19, 2022
    Inventors: Kyong Hwan OH, Jin Tae JEONG, Ji Hyun KA, Won Kyu KWAK, Hyung Jun PARK, Chang Soo PYON, Ji Eun LEE, Hai Jung IN, Won Mi HWANG
  • Patent number: 11308857
    Abstract: A gate driver includes first and second stages. Each of the first and second stages includes an output circuit which outputs a scan signal, a carry signal and an inverted carry signal based on voltages of first and second nodes, a first input terminal, a second input terminal, a third input terminal, a first output terminal, and a second output terminal. The first stage further includes a first input circuit which controls the voltages of the first and second nodes thereof based on a start pulse and a signal supplied to the second input terminal. The second stage further includes a second input circuit which controls the voltages of the first and second nodes thereof based on a first carry signal and a first inverted carry signal, and a signal supplied to the second input terminal. The second stage is dependently connected to the first stage.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hai Jung In
  • Patent number: 11302262
    Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numbered
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Won Kyu Kwak, Jae-Sic Lee
  • Patent number: 11282440
    Abstract: A display device includes: a display panel including a pixel electrically connected to each of a data line, a first power line, a second power line, and a third power line; a power supply to provide a first power voltage to the first power line, and a second power voltage to the second power line; and a driver to provide a data voltage to the data line, and a third power voltage to the third power line. The driver is to determine whether a sensing voltage measured at the second power line is out of a reference range, and to limit the supply of the third power voltage when the sensing voltage is out of the reference range.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Il Hun Jeong, Hai Jung In, Yeon Shil Jung, Hae Goo Jung
  • Patent number: 11257422
    Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: February 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Hwan Oh, Jin Tae Jeong, Ji Hyun Ka, Won Kyu Kwak, Hyung Jun Park, Chang Soo Pyon, Ji Eun Lee, Hai Jung In, Won Mi Hwang
  • Publication number: 20220036830
    Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 3, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hai Jung In, Dong Gyu Kim, Bo Yong Chung
  • Publication number: 20220028323
    Abstract: A gate driver includes first and second stages. Each of the first and second stages includes an output circuit which outputs a scan signal, a carry signal and an inverted carry signal based on voltages of first and second nodes, a first input terminal, a second input terminal, a third input terminal, a first output terminal, and a second output terminal. The first stage further includes a first input circuit which controls the voltages of the first and second nodes thereof based on a start pulse and a signal supplied to the second input terminal. The second stage further includes a second input circuit which controls the voltages of the first and second nodes thereof based on a first carry signal and a first inverted carry signal, and a signal supplied to the second input terminal. The second stage is dependently connected to the first stage.
    Type: Application
    Filed: March 16, 2021
    Publication date: January 27, 2022
    Inventor: Hai Jung IN
  • Patent number: 11217149
    Abstract: A display device including pixels connected to first scan lines, second scan lines, third scan lines, emission control lines, and data lines, a first scan driver for supplying a first scan signal to each of the first scan lines in a first period, a second scan driver for supplying a second scan signal to each of the second scan lines in the first period, a third scan driver for supplying a third scan signal to each of the third scan lines in the first period and a second period, an emission driver for supplying an emission control signal to the emission control lines in the first period and the second period, and a data driver for supplying a data signal to the data lines in the first period, in which a width of the second scan signal is greater than that of the first scan signal.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: January 4, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai Jung In, Ki Myeong Eom, Kyong Hwan Oh
  • Publication number: 20210383760
    Abstract: A display device includes gate lines and pixels connected to the gate lines. The display device includes stages which provide gate signals to the gate lines, and first and second gate power lines which transfer a first voltage to the stages. A first stage among the stages includes a first node controller and a first output unit. The first node controller is connected to the second gate power line, and controls a voltage of a first control node. The first output unit is connected to the first gate power line, and outputs a first voltage of the first gate power line as a gate signal in response to a voltage of the first control node.
    Type: Application
    Filed: March 18, 2021
    Publication date: December 9, 2021
    Inventor: Hai Jung IN
  • Publication number: 20210366408
    Abstract: An emission driver includes a plurality of stages. A stage of the plurality of stages receives a start signal, a first clock signal, a second clock signal, a protection signal, a first gate power voltage and a second gate power voltage and outputs an emission signal. The stage of the plurality of stages includes a pull-up switching element connected between a first gate power voltage terminal which receives the first gate power voltage and an emission signal output terminal which outputs the emission signal, a pull-down switching element connected between a second gate power voltage terminal which receives the second gate power voltage and the emission signal output terminal and a protection switching element which applies the first gate power voltage to a control electrode of the pull-down switching element in response to the protection signal.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 25, 2021
    Inventors: HAI-JUNG IN, KIMYEONG EOM, JI-HYUN KA
  • Publication number: 20210366402
    Abstract: A gate driver includes a stage configured to output a gate signal, the stage including an input part configured to control a voltage of a first node and a voltage of a second node based on signals supplied to a first input terminal and a second input terminal, an output part configured to supply a voltage of a first power source or a voltage of a second power source as the gate signal to an output terminal based on a voltage of a third node and a voltage of a fourth node, a first signal processing part configured to supply the voltage of the second power source to the fourth node based on the voltage of the first node, or to electrically connect the second node and the fourth node through a fifth node based on a signal supplied to a third input terminal, and a second signal processing part including a first transistor connected between the third node and a sixth node to control the voltage of the third node based on an operation of the first transistor.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 25, 2021
    Inventors: Hai Jung IN, Ji Hyun KA, Tae Hoon KWON, Ki Myeong EOM, Chae Han HYUN
  • 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: 20210335276
    Abstract: A display device includes a display panel, a data driver which provides data voltages to the display panel, and a controller which provides output image data to the data driver. The controller includes a data line memory which stores input image data for each pixel row of the display panel, an address line memory which stores addresses for the input image data, and a data serialize block which generates the output image data provided to the data driver by rearranging the input image data stored in the data line memory based on the addresses stored in the address line memory.
    Type: Application
    Filed: February 10, 2021
    Publication date: October 28, 2021
    Inventor: Hai-Jung IN
  • Patent number: 11151947
    Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: October 19, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai Jung In, Dong Gyu Kim, Bo Yong Chung
  • Patent number: 11132980
    Abstract: A display device includes a display unit comprising a plurality of pixels disposed in a display area, the display area comprising a first area and a second area; a gamma voltage supply including gamma voltage generators that are configured to generate respective ones of gamma voltage sets; and a data driver configured to convert image data into data signals using the gamma voltage sets, supply the data signals to the pixels, generate the data signals corresponding to the first area and the second area using a first group comprising some of the gamma voltage generators in a first mode, and generate the data signals corresponding to the second area using a second group comprising different gamma voltage generators from the first group in a second mode.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: September 28, 2021
    Inventor: Hai Jung In
  • Publication number: 20210288127
    Abstract: A display apparatus includes: a display panel; a driving circuit which provides a driving signal to the display panel and includes at least one driving transistor; and a clock signal wiring for providing a clock signal to the driving circuit. The driving circuit includes an active pattern, a gate pattern, a source pattern, and a shielding pattern, the gate pattern overlaps the active pattern in a plan view, a major surface plane of the source pattern is disposed in a layer different from a layer the active pattern is disposed in, the source pattern is electrically connected to the active pattern, the shielding pattern is disposed between the gate pattern and the clock signal wiring and applied with a constant voltage, and the clock signal wiring overlaps the gate pattern in the plan view and is disposed on the source pattern.
    Type: Application
    Filed: January 26, 2021
    Publication date: September 16, 2021
    Inventor: HAI-JUNG IN
  • Publication number: 20210264847
    Abstract: A display device includes: a display panel including a pixel electrically connected to each of a data line, a first power line, a second power line, and a third power line; a power supply to provide a first power voltage to the first power line, and a second power voltage to the second power line; and a driver to provide a data voltage to the data line, and a third power voltage to the third power line. The driver is to determine whether a sensing voltage measured at the second power line is out of a reference range, and to limit the supply of the third power voltage when the sensing voltage is out of the reference range.
    Type: Application
    Filed: August 31, 2020
    Publication date: August 26, 2021
    Inventors: Il Hun JEONG, Hai Jung IN, Yeon Shil JUNG, Hae Goo JUNG
  • Patent number: 11094264
    Abstract: A display device includes: a display panel having a plurality of pixels coupled to respective ones of first to nth (where n is a natural number of 1 or more) scan lines; a scan driver having a plurality of stages to supply a scan signal to the first to nth scan lines; and a timing controller to provide a clock signal to the scan driver, the timing controller controlling the scan driver by controlling an overdriving pulse of the clock signal. A first overdriving pulse of the clock signal corresponding to a first scan signal is different from an nth overdriving pulse of the clock signal corresponding to the nth scan signal.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 17, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hai Jung In
  • 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