Patents by Inventor Jae-Woong Youn

Jae-Woong Youn 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: 11735116
    Abstract: A pixel circuit, a method for driving the pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first power line to which a pixel driving voltage is applied, a gate electrode connected to a first node, and a second electrode connected to a second node; a first switch element including a first electrode connected to a second power line to which a data voltage is applied, a gate electrode to which a first scan pulse is applied, and a second electrode connected to the first node; a second switch element including a first electrode connected to the second power line, a gate electrode to which a second scan pulse is applied, and a second electrode connected to the first node.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: August 22, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: In June Kim, Jae Woong Youn
  • Patent number: 11694631
    Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes a plurality of signal transmitters which are cascade-connected via a carry line to which a carry signal is applied from a previous signal transmitter, and a repair line connected to the plurality of signal transmitters, wherein a signal transmitter includes a circuit part to receive the carry signal from the previous signal transmitter, and charge or discharge a first control node and a second control node, an output part to output a gate signal and a carry signal based on potentials of the first control node and the second control node, and a repair block connected to the repair line and to output a repair gate signal replacing the gate signal and a repair carry signal replacing the carry signal when a logic signal is applied from the repair line.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: July 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Woong Youn, In June Kim, Min Seon Park
  • Publication number: 20230073636
    Abstract: A pixel circuit, a method for driving the pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first power line to which a pixel driving voltage is applied, a gate electrode connected to a first node, and a second electrode connected to a second node; a first switch element including a first electrode connected to a second power line to which a data voltage is applied, a gate electrode to which a first scan pulse is applied, and a second electrode connected to the first node; a second switch element including a first electrode connected to the second power line, a gate electrode to which a second scan pulse is applied, and a second electrode connected to the first node.
    Type: Application
    Filed: August 18, 2022
    Publication date: March 9, 2023
    Inventors: In June Kim, Jae Woong Youn
  • Publication number: 20230074341
    Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes a plurality of signal transmitters which are cascade-connected via a carry line to which a carry signal is applied from a previous signal transmitter, and a repair line connected to the plurality of signal transmitters, wherein a signal transmitter includes a circuit part to receive the carry signal from the previous signal transmitter, and charge or discharge a first control node and a second control node, an output part to output a gate signal and a carry signal based on potentials of the first control node and the second control node, and a repair block connected to the repair line and to output a repair gate signal replacing the gate signal and a repair carry signal replacing the carry signal when a logic signal is applied from the repair line.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 9, 2023
    Inventors: Jae Woong Youn, In June Kim, Min Seon Park
  • Publication number: 20220181431
    Abstract: Embodiments of the present disclosure are related to a display device, as disposing a clock signal line on an area overlapping with an area where a gate circuit is disposed on a non-active area of a display panel, a gate driving circuit can be disposed on the non-active area while minimizing an increase of the non-active area. Furthermore, as disposing the clock signal line by using metal layers that a first metal layer with a low resistance and a second metal layer with a high reflectance are stacked, the clock signal line disposed on the non-active area and a pixel electrode disposed on an active area can be implemented as a same layer, the clock signal line disposed on the gate circuit can be implemented while reducing the number of masks.
    Type: Application
    Filed: November 2, 2021
    Publication date: June 9, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jae-Woong YOUN, Kiwon SON, Minseon PARK
  • Publication number: 20220149134
    Abstract: A light emitting display panel and a device light emitting display device including the same including a substrate, a thin film transistor disposed on the substrate layer and comprising a first active layer a first gate electrode and the first electrode pattern, a first insulating layer disposed on the thin film transistor, a conductive pattern disposed on the first insulation layer, a second insulating layer disposed on the conductive pattern, a first electrode disposed on the second insulating film, and contacted to the first electrode pattern, and a bank exposing a portion of the top surface of the first electrode, wherein the first electrode and the conducting pattern is used as an electrode of storage capacitor and the conducting pattern is overlapped with a top surface of the first electrode not overlapped with the bank.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 12, 2022
    Inventors: Jae-Woong YOUN, InJune KIM, Younsub KIM
  • Patent number: 10935706
    Abstract: A curved liquid crystal display device includes first and second substrates facing each other and including a central region and a peripheral region; a plurality of data lines disposed on the first substrate and being spaced apart from each other by the same distance; a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines; a pixel electrode disposed on the first substrate; a common electrode on the first substrate or the second substrate; a plurality of black matrixes disposed on the second substrate, a distance between adjacent black matrixes in the central region being smaller than a distance between adjacent black matrixes in the peripheral region; and a liquid crystal layer disposed between the first and second substrates.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: March 2, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: In-Yeong Kong, Do-Sung Kim, Hee-Young Chae, Se-Hong Park, Jong-Sin Park, Ja-Young Pyun, Dong-Yoon Lee, Jae-Woong YouN
  • Publication number: 20190086594
    Abstract: A curved liquid crystal display device includes first and second substrates facing each other and including a central region and a peripheral region; a plurality of data lines disposed on the first substrate and being spaced apart from each other by the same distance; a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines; a pixel electrode disposed on the first substrate; a common electrode on the first substrate or the second substrate; a plurality of black matrixes disposed on the second substrate, a distance between adjacent black matrixes in the central region being smaller than a distance between adjacent black matrixes in the peripheral region; and a liquid crystal layer disposed between the first and second substrates.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 21, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: In-Yeong KONG, Do-Sung KIM, Hee-Young CHAE, Se-Hong PARK, Jong-Sin PARK, Ja-Young PYUN, Dong-Yoon LEE, Jae-Woong YOUN
  • Patent number: 10185175
    Abstract: A multi-curved liquid crystal display panel includes lower and upper substrates provided with first and second regions and bonded to each other, first and second upper polarizing plates on an upper surface of the upper substrate in the first and second regions, and first and second lower polarizing plates on a lower surface of the lower substrate in the first and second regions. The orientations of absorption axes of the first upper polarizing plate and the second upper polarizing plate are different, the orientations of absorption axes of the first lower polarizing plate and the second lower polarizing plate are different, the orientations of the absorption axes of the first upper polarizing plate and the second lower polarizing plate are equal, and the orientations of the absorption axes of the first lower polarizing plate and the second upper polarizing plate are equal.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 22, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hong Park, Hee-Young Chae, Jong-Sin Park, Jae-Woong Youn
  • Patent number: 10168458
    Abstract: A curved liquid crystal display device includes first and second substrates facing each other and including a central region and a peripheral region; a plurality of data lines disposed on the first substrate and being spaced apart from each other by the same distance; a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines; a pixel electrode disposed on the first substrate; a common electrode on the first substrate or the second substrate; a plurality of black matrixes disposed on the second substrate, a distance between adjacent black matrixes in the central region being smaller than a distance between adjacent black matrixes in the peripheral region; and a liquid crystal layer disposed between the first and second substrates.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: January 1, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: In-Yeong Kong, Do-Sung Kim, Hee-Young Chae, Se-Hong Park, Jong-Sin Park, Ja-Young Pyun, Dong-Yoon Lee, Jae-Woong Youn
  • Patent number: 10162222
    Abstract: A curved LCD device includes first and second substrates; gate and data lines in a display area on the first substrate and defining a pixel region; a thin film transistor connected to the gate and data lines; a color filter layer in the pixel region; pixel and common electrodes on the color filter layer; first light-blocking layers in the display area over the first substrate; a second light-blocking layer in a non-display area over the first substrate; first and second column spacers in the display area on the second substrate, wherein the first column spacer has a first height, and the second column spacer has a second height; and a third column spacer in the non-display area on the second substrate and having the second height, wherein the third column spacer is in point-contact with the second light-blocking layer when an external force is applied.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 25, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hee-Young Chae, Se-Hong Park, In-Yeong Kong, Jong-Sin Park, Ja-Young Pyun, Dong-Yoon Lee, Jae-Woong Youn
  • Patent number: 9964808
    Abstract: A curved liquid crystal display device may include first and second substrates having curved surfaces along a first direction; first and second alignment layers on inner surfaces of the first and second substrates, respectively; a liquid crystal layer between the first and second alignment layers; and a seal pattern in an edge area surrounding the liquid crystal layer between the first and second substrates, wherein the first and second alignment layers have an alignment direction substantially parallel with the first direction to orient liquid crystal molecules of the liquid crystal layer.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 8, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Se-Hong Park, Hee-Young Chae, In-Yeong Kong, Jong-Sin Park, Ja-Young Pyun, Dong-Yoon Lee, Jae-Woong Youn
  • Publication number: 20170153494
    Abstract: A multi-curved liquid crystal display panel includes lower and upper substrates provided with first and second regions and bonded to each other, first and second upper polarizing plates on an upper surface of the upper substrate in the first and second regions, and first and second lower polarizing plates on a lower surface of the lower substrate in the first and second regions. The orientations of absorption axes of the first upper polarizing plate and the second upper polarizing plate are different, the orientations of absorption axes of the first lower polarizing plate and the second lower polarizing plate are different, the orientations of the absorption axes of the first upper polarizing plate and the second lower polarizing plate are equal, and the orientations of the absorption axes of the first lower polarizing plate and the second upper polarizing plate are equal.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 1, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Se-Hong Park, Hee-Young Chae, Jong-Sin Park, Jae-Woong Youn
  • Publication number: 20150370116
    Abstract: A curved LCD device includes first and second substrates; gate and data lines in a display area on the first substrate and defining a pixel region; a thin film transistor connected to the gate and data lines; a color filter layer in the pixel region; pixel and common electrodes on the color filter layer; first light-blocking layers in the display area over the first substrate; a second light-blocking layer in a non-display area over the first substrate; first and second column spacers in the display area on the second substrate, wherein the first column spacer has a first height, and the second column spacer has a second height; and a third column spacer in the non-display area on the second substrate and having the second height, wherein the third column spacer is in point-contact with the second light-blocking layer when an external force is applied
    Type: Application
    Filed: May 27, 2015
    Publication date: December 24, 2015
    Inventors: Hee-Young CHAE, Se-Hong PARK, In-Yeong KONG, Jong-Sin PARK, Ja-Young PYUN, Dong-Yoon LEE, Jae-Woong YOUN
  • Publication number: 20150362796
    Abstract: A curved liquid crystal display device includes first and second substrates facing each other and including a central region and a peripheral region; a plurality of data lines disposed on the first substrate and being spaced apart from each other by the same distance; a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines; a pixel electrode disposed on the first substrate; a common electrode on the first substrate or the second substrate; a plurality of black matrixes disposed on the second substrate, a distance between adjacent black matrixes in the central region being smaller than a distance between adjacent black matrixes in the peripheral region; and a liquid crystal layer disposed between the first and second substrates.
    Type: Application
    Filed: May 7, 2015
    Publication date: December 17, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In-Yeong KONG, Do-Sung KIM, Hee-Young CHAE, Se-Hong PARK, Jong-Sin PARK, Ja-Young PYUN, Dong-Yoon LEE, Jae-Woong YOUN
  • Publication number: 20150362766
    Abstract: A curved liquid crystal display device may include first and second substrates having curved surfaces along a first direction; first and second alignment layers on inner surfaces of the first and second substrates, respectively; a liquid crystal layer between the first and second alignment layers; and a seal pattern in an edge area surrounding the liquid crystal layer between the first and second substrates, wherein the first and second alignment layers have an alignment direction substantially parallel with the first direction to orient liquid crystal molecules of the liquid crystal layer.
    Type: Application
    Filed: May 15, 2015
    Publication date: December 17, 2015
    Inventors: Se-Hong PARK, Hee-Young Chae, In-Yeong Kong, Jong-Sin Park, Ja-Young Pyun, Dong-Yoon Lee, Jae-Woong Youn