Patents by Inventor Seong-Yeun Kang

Seong-Yeun Kang 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: 20230292567
    Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 14, 2023
    Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
  • Patent number: 11696477
    Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: July 4, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
  • Publication number: 20210376052
    Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 2, 2021
    Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
  • Patent number: 11107877
    Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 31, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
  • Publication number: 20190165084
    Abstract: An organic light emitting diode display includes: a substrate including a display area and a non-display area adjacent to the display area; a pixel thin film transistor positioned in the display area of the substrate; a first data wire positioned on the pixel thin film transistor; a second data wire positioned on the first data wire; an organic light emitting element positioned on the second data wire and electrically connected to the pixel thin film transistor through the first data wire and the second data wire; a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor; and a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second data wire.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 30, 2019
    Inventors: Kyong Tae Park, Sung Ho Cho, Seong Yeun Kang
  • Patent number: 10204975
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a plurality of light emitting pixels disposed in a display region and including a first light emitting pixel and a second light emitting pixel, and a plurality of dummy pixels disposed in a dummy region and including a first dummy pixel and a second dummy pixel. The display also includes a plurality of repair lines including i) a first repair line configured to connect the first dummy pixel and the first and second light emitting pixels and ii) a second repair line configured to connect the second dummy pixel and the first and second light emitting pixels. A connection line is configured to connect the first and second repair lines, the first and second dummy pixel having layouts that are symmetrical.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 12, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Seong Yeun Kang
  • Patent number: 10056023
    Abstract: A display device and a method of repairing the same are disclosed. In one aspect, the display device includes an OLED, a repair line electrically connected to a first dummy pixel and a second dummy pixel, and a repair modulation circuit electrically connected to the first and second dummy pixels. The first dummy pixel includes a first dummy pixel driving circuit configured to output a driving current corresponding to a data voltage of a selected pixel of the OLED to the repair line, when the selected pixel becomes defective, based on a first light emission control signal. The repair modulation circuit includes a capacitor configured to be initialized before the driving current is output from the first dummy pixel driving circuit. The capacitor of the repair modulation circuit is configured to be charged with the driving current when the driving current is output from the first dummy pixel driving circuit.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 21, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Yeun Kang, Kyong Tae Park
  • Patent number: 9734786
    Abstract: A source drive integrated circuit includes a source driving circuit, output buffers, and voltage protection circuits. The source driving circuit generates data voltages according to a source timing control signal and digital video data. The output buffers output the data voltages from the source driving circuit to output terminals. The voltage protection circuits are connected between the output buffers and the output terminals. A voltage supplied to at least one of the voltage protection circuits is different from a voltage supplied to remaining ones of the voltage protection circuits.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 15, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Tae Park, Seong-Yeun Kang, Jung-Hoon Kim, Tae-Gon Kim, Dong-Yoon So
  • Publication number: 20170062544
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a plurality of light emitting pixels disposed in a display region and including a first light emitting pixel and a second light emitting pixel, and a plurality of dummy pixels disposed in a dummy region and including a first dummy pixel and a second dummy pixel. The display also includes a plurality of repair lines including i) a first repair line configured to connect the first dummy pixel and the first and second light emitting pixels and ii) a second repair line configured to connect the second dummy pixel and the first and second light emitting pixels. A connection line is configured to connect the first and second repair lines, the first and second dummy pixel having layouts that are symmetrical.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventor: Seong Yeun Kang
  • Publication number: 20160335950
    Abstract: A display device and a method of repairing the same are disclosed. In one aspect, the display device includes an OLED, a repair line electrically connected to a first dummy pixel and a second dummy pixel, and a repair modulation circuit electrically connected to the first and second dummy pixels. The first dummy pixel includes a first dummy pixel driving circuit configured to output a driving current corresponding to a data voltage of a selected pixel of the OLED to the repair line, when the selected pixel becomes defective, based on a first light emission control signal. The repair modulation circuit includes a capacitor configured to be initialized before the driving current is output from the first dummy pixel driving circuit. The capacitor of the repair modulation circuit is configured to be charged with the driving current when the driving current is output from the first dummy pixel driving circuit.
    Type: Application
    Filed: April 22, 2016
    Publication date: November 17, 2016
    Inventors: Seong Yeun Kang, Kyong Tae Park
  • Publication number: 20160086563
    Abstract: A source drive integrated circuit includes a source driving circuit, output buffers, and voltage protection circuits. The source driving circuit generates data voltages according to a source timing control signal and digital video data. The output buffers output the data voltages from the source driving circuit to output terminals. The voltage protection circuits are connected between the output buffers and the output terminals. A voltage supplied to at least one of the voltage protection circuits is different from a voltage supplied to remaining ones of the voltage protection circuits.
    Type: Application
    Filed: May 6, 2015
    Publication date: March 24, 2016
    Inventors: Kyong-Tae PARK, Seong-Yeun KANG, Jung-Hoon KIM, Tae-Gon KIM, Dong-Yoon SO
  • Patent number: 8964141
    Abstract: A thin film transistor, a manufacturing method thereof, and a display device having the same are disclosed. The thin film transistor includes a semiconductor layer formed on a substrate, a gate insulating layer formed on the substrate including the semiconductor layer, a gate electrode formed on the gate insulating above the semiconductor layer, source and drain electrodes connected to the semiconductor layer, and 3.5 to 4.5 protrusions formed on the semiconductor layer overlapped with the gate electrode. Malfunction of the thin film transistor and inferior image quality of the display device can be prevented by adjusting the number of protrusions to minimize leakage current and defects.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: February 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Jin-Suk Park, Seong-Yeun Kang
  • Patent number: 8610124
    Abstract: A display device capable of implementing the light shielding effect and process simplification, and a method of manufacturing the display device. The display device includes a transistor formed in a first region on a substrate, a pixel electrode formed in a second region on the substrate, a buffer layer formed beneath the transistor in the first region, and a light shielding layer formed between the buffer layer and the substrate in the first region. In the display device, the light shielding layer may include a semiconductor material.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Seong-Yeun Kang, Jin-Suk Park
  • Publication number: 20110241005
    Abstract: A display device capable of implementing the light shielding effect and process simplification, and a method of manufacturing the display device. The display device includes a transistor formed in a first region on a substrate, a pixel electrode formed in a second region on the substrate, a buffer layer formed beneath the transistor in the first region, and a light shielding layer formed between the buffer layer and the substrate in the first region. In the display device, the light shielding layer may include a semiconductor material.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 6, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Seong-Yeun Kang, Jin-Suk Park
  • Publication number: 20110221991
    Abstract: A thin film transistor, a manufacturing method thereof, and a display device having the same are disclosed. The thin film transistor includes a semiconductor layer formed on a substrate, a gate insulating layer formed on the substrate including the semiconductor layer, a gate electrode formed on the gate insulating above the semiconductor layer, source and drain electrodes connected to the semiconductor layer, and 3.5 to 4.5 protrusions formed on the semiconductor layer overlapped with the gate electrode. Malfunction of the thin film transistor and inferior image quality of the display device can be prevented by adjusting the number of protrusions to minimize leakage current and defects.
    Type: Application
    Filed: December 13, 2010
    Publication date: September 15, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Sung-In Ro, Ji-Yong Park, Kyung-Min Park, Jin-Suk Park, Seong-Yeun Kang
  • Publication number: 20080114110
    Abstract: An antistatic composition, a transfer roller manufactured by using the antistatic composition, and a method of manufacturing the same are provided. The antistatic composition includes about 0.05 to about 5 parts by weight of an antistatic agent including a metal salt compound, about 10 to about 50 parts by weight of a thermoplastic elastomer, and about 100 parts by weight of a base resin. The antistatic agent includes the metal salt compound and an ether compound. The metal salt compound includes an alkali metal salt compound.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Inventors: Eun-Chul Lee, Kwang-Suck Suh, Heui-Soo Moon, Tae-Young Kim, Chul-Heum Lee, Do-Yoon Kim, Seong-Yeun Kang, In-Han Lee, In-Shik Park, Tue-Hee Lee