Patents by Inventor Seungseok Ryoo

Seungseok Ryoo 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: 11741890
    Abstract: The present disclosure relates to a power supply device including a gate driving circuit configured to supply gate signals to a plurality of gate lines, a first power supply circuit configured to supply a first initialization voltage having a voltage level between a first voltage level and a second voltage level to a plurality of first initialization power lines, the first initialization voltage having the first voltage level in a first period, a third voltage level between the first and second voltage levels in a second period, and the second voltage level in a third period, and a second power supply circuit configured to supply a driving voltage to a plurality of driving power lines among the plurality of power lines, and a display device including the power supply device.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: August 29, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: SeungSeok Ryoo, Byeong-Seong So
  • Publication number: 20230217724
    Abstract: Discussed is a display device including a substrate, a circuit element on the substrate, a light emitting element electrically connected to the circuit element and including a first electrode, a light emitting layer, and a second electrode. A bank can define the emission area where the first electrode is exposed, and define the non-emission area where the bank is located, a taper pattern can be on the substrate and interposed between the circuit element and the bank at the non-emission area. The bank can include an incline extending from an edge of the emission area to a predetermined distance into the non-emission area, the incline of the bank defining a taper area, and the taper pattern can be adjacent to or overlap the taper area.
    Type: Application
    Filed: November 15, 2022
    Publication date: July 6, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: SeungSeok RYOO, Byeong-Seong SO
  • Publication number: 20230200186
    Abstract: The present disclosure provides a display device that by including a spacer located outside of a first transmission area and located on a bank, enables a second electrode to be easily opened in the first transmission area using a sacrificial layer, and thereby, is capable of improving the transmittance of the first transmission area and preventing a decrease in the transmittance due to a residue remaining in the transmission area in the process of forming an opening of the second electrode, and a method of manufacturing the display device.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 22, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: SeungSeok RYOO, Byeong-Seong SO
  • Publication number: 20230189605
    Abstract: The present disclosure provides a display device including a plurality of subpixels disposed in a display area for displaying images, each of the subpixels including a light emitting element, a driving transistor for driving the light emitting element. The display area may include a first area, a second area surrounding the first area, and a third area between the first area and the second area. First, second, and third subpixels among the plurality of subpixels are disposed in the first, second, and third areas, respectively. When first data corresponding to the first subpixel is equal to second data corresponds to the second subpixel, the luminance of the first subpixel may be greater than the luminance of the second subpixel.
    Type: Application
    Filed: November 29, 2022
    Publication date: June 15, 2023
    Inventors: SeungSeok RYOO, Byeong-Seong SO
  • Publication number: 20230169913
    Abstract: The present disclosure relates to a power supply device including a gate driving circuit configured to supply gate signals to a plurality of gate lines, a first power supply circuit configured to supply a first initialization voltage having a voltage level between a first voltage level and a second voltage level to a plurality of first initialization power lines, the first initialization voltage having the first voltage level in a first period, a third voltage level between the first and second voltage levels in a second period, and the second voltage level in a third period, and a second power supply circuit configured to supply a driving voltage to a plurality of driving power lines among the plurality of power lines, and a display device including the power supply device.
    Type: Application
    Filed: September 23, 2022
    Publication date: June 1, 2023
    Inventors: SeungSeok RYOO, Byeong-Seong SO
  • Patent number: 9940888
    Abstract: A display device is disclosed. The display device includes a substrate having an active area including a plurality of pixels, a bezel area positioned outside the active area, and at least one opening area positioned inside the active area, at least one opening positioned in the opening area, first signal lines arranged in a first direction and making a detour around the opening in the opening area, and second signal lines arranged in a second direction and making a detour around the opening in the opening area. The opening area includes a first opening area in which the first signal lines are arranged and which is adjacent to the opening, and a second opening area in which the second signal lines intersecting the first signal lines are arranged and which is spaced from the opening.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: April 10, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seungseok Ryoo, Seeung Lee, Chansoo Park
  • Patent number: 9697786
    Abstract: A display device includes a display panel having vertical lines and horizontal lines formed thereon; sub-pixels; and a driver supplying a data signal and a scan signal to the sub-pixels through the vertical lines and horizontal lines, the vertical lines include a vertical data line to which the data signal is supplied and a vertical scan line to which the scan signal is supplied, the horizontal lines are connected to the vertical scan line and include a horizontal scan line transferring the scan signal in a horizontal direction, and the display panel include a shield electrode for shielding a signal interference between the pixel electrode and the vertical scan line.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 4, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seeung Lee, Chansoo Park, Seungseok Ryoo
  • Patent number: 9698163
    Abstract: A free-form display is disclosed which makes a step-like pattern adjacent to a free-form portion less visible. The free-form display has an active area and a bezel area, and at least part of a boundary between the active area and the bezel area has a free-form portion. The free-form portion comprises subpixel electrodes and a light blocking portion. A plurality of subpixel electrodes are placed in areas defined by a plurality of gate lines and a plurality of data lines that intersect each other. A light blocking portion has openings exposing the subpixel electrodes, respectively, and is arranged to overlap the gate lines and the data lines. The active area comprises subpixel areas where the subpixel electrodes are placed, and a non-pixel area where no subpixel electrodes are placed. The openings of the light blocking portion adjacent to the non-pixel area, are made in different sizes.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: July 4, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chansoo Park, Seeung Lee, Seungseok Ryoo
  • Publication number: 20170154566
    Abstract: A display device is disclosed. The display device includes a substrate having an active area including a plurality of pixels, a bezel area positioned outside the active area, and at least one opening area positioned inside the active area, at least one opening positioned in the opening area, first signal lines arranged in a first direction and making a detour around the opening in the opening area, and second signal lines arranged in a second direction and making a detour around the opening in the opening area. The opening area includes a first opening area in which the first signal lines are arranged and which is adjacent to the opening, and a second opening area in which the second signal lines intersecting the first signal lines are arranged and which is spaced from the opening.
    Type: Application
    Filed: November 1, 2016
    Publication date: June 1, 2017
    Inventors: Seungseok Ryoo, Seeung LEE, Chansoo PARK
  • Publication number: 20170125448
    Abstract: A free-form display is disclosed which makes a step-like pattern adjacent to a free-form portion less visible. The free-form display has an active area and a bezel area, and at least part of a boundary between the active area and the bezel area has a free-form portion. The free-form portion comprises subpixel electrodes and a light blocking portion. A plurality of subpixel electrodes are placed in areas defined by a plurality of gate lines and a plurality of data lines that intersect each other. A light blocking portion has openings exposing the subpixel electrodes, respectively, and is arranged to overlap the gate lines and the data lines. The active area comprises subpixel areas where the subpixel electrodes are placed, and a non-pixel area where no subpixel electrodes are placed. The openings of the light blocking portion adjacent to the non-pixel area, are made in different sizes.
    Type: Application
    Filed: October 27, 2016
    Publication date: May 4, 2017
    Inventors: Chansoo PARK, Seeung LEE, Seungseok RYOO
  • Publication number: 20140375534
    Abstract: A display device includes a display panel having vertical lines and horizontal lines formed thereon; sub-pixels; and a driver supplying a data signal and a scan signal to the sub-pixels through the vertical lines and horizontal lines, the vertical lines include a vertical data line to which the data signal is supplied and a vertical scan line to which the scan signal is supplied, the horizontal lines are connected to the vertical scan line and include a horizontal scan line transferring the scan signal in a horizontal direction, and the display panel include a shield electrode for shielding a signal interference between the pixel electrode and the vertical scan line.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Seeung Lee, Chansoo Park, Seungseok Ryoo