Patents Assigned to LG Display Co., Ltd.
  • Patent number: 11929033
    Abstract: A display device is disclosed by the present disclosure. The display device includes: a display panel having a plurality of sub-pixels, the sub-pixels being connected to a plurality of scan lines and a plurality of data lines; and a gate driver for supplying a scan signal at a high level to the plurality of scan lines. The gate driver may include: a first gate driver for outputting a carry signal at a low level; a second gate driver for outputting the scan signal at the high level based on the carry signal; a first clock signal line connected to the first and the second gate driver; and a second clock signal line connected to the first and the second gate driver. Accordingly, the gate driver can generate a high-level scan signal based on the low-level carry signal from the first gate driver.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: March 12, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Taehwi Kim, Soonsung Ahn
  • Patent number: 11930657
    Abstract: The present disclosure discloses a display apparatus, including a substrate including a pixel area including a disconnected area which encloses a hole area, an organic light emitting diode formed in the pixel area and the disconnected area, a plurality of inorganic insulating layers disposed below the organic light emitting diode, a disconnection structure which is disposed in the disconnected area and encloses the hole area, and an internal dam which is disposed in the disconnected area and encloses the disconnection structure, and in which the disconnection structure includes an eave portion which is simultaneously formed with the internal dam and a trench which is formed by etching the plurality of inorganic insulating layers disposed below the eave portion, and the disconnection structure is configured to have a predetermined overhang and a predetermined depth by the eave portion and the trench structure.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Daegyu Jo, SungGyu Kim
  • Patent number: 11928285
    Abstract: A transparent display device with a touch sensor is provided, which may reduce loss of light transmittance due to a touch sensor and a touch line, and may detect a line area, in which a defective touch sensor is included. The device includes a substrate provided with a plurality of transmissive areas and a non-transmissive area disposed between the transmissive areas adjacent to each other. The device includes a touch line extended from the non-transmissive area and connected to a touch sensor electrode, and a common power line connected to a cathode electrode to supply a cathode power source. The non-transmissive area includes a cathode power area to which the cathode power source is applied through the common power line, the cathode power area includes a first cathode power area and a second cathode power area. The second cathode power area may have resistance higher than that of the first cathode power area.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: March 12, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: JaeHee Park, MiReum Lee, Kihyung Lee
  • Patent number: 11930688
    Abstract: A display device includes a substrate including a display area and a non-display area surrounding the display area, the display device further includes a gate driving circuit disposed on the substrate and in the non-display area, the display device further includes a light emitting element disposed in the display area and on the substrate and including a cathode electrode, the display device further includes a dam disposed on the substrate and in the non-display area, the dam further outside the substrate than the gate driving circuit, the display device further includes a first dummy conductive layer disposed to cover the dam and made of the same material as the cathode electrode, and a spacer disposed between the gate driving circuit and the dam, and the cathode electrode extends from the display area to the non-display area to overlap with the gate driving circuit.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Kiyoung Sung
  • Patent number: 11929025
    Abstract: Disclosed is a display device comprising a light emitting element, and a pixel driving circuit connected to the light emitting element and configured to include first to fourth nodes, wherein the pixel driving circuit includes a driving transistor connected to the first to third nodes, a plurality of switching transistors, a storage capacitor, and a plurality of signals and voltage lines, wherein an initialization voltage applied through an initialization line among the plurality of signals and voltage lines is varied based on a data voltage.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: March 12, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Dongkyu Lee, Wookyu Sang
  • Patent number: 11928999
    Abstract: The present disclosure relates to a display device and a method of driving the same, and more specifically, to a display device for preventing a user from recognizing a change in luminance when a frame frequency is changed, and a method of driving the same. A display device of the present disclosure includes a display panel including a plurality of pixel regions, a gate driver configured to sequentially supply light emission control signals to horizontal lines of the display panel, a data driver configured to supply a data signal corrected by a source voltage to the display panel, and a dimming controller configured to control whether to gradually change a frame frequency and gamma correction data according to a duty ratio of the light emission control signal.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: March 12, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Won-Seok Song, Su-Bin Park, Sung-Chang Park, Kyeong-Min Moon
  • Patent number: 11928300
    Abstract: Disclosed herein is a touch display device and a display panel. The touch display device includes a display panel in which a plurality of X-touch electrode lines, which extend in a first direction and receive a touch driving signal through a plurality of X-touch lines, and a plurality of Y-touch electrode lines, which extend in a second direction and transmit a touch sensing signal through a plurality of Y-touch lines, are disposed, and a touch driving circuit configured to supply the touch driving signal to the plurality of X-touch electrode lines and receive the touch sensing signal from the Y-touch electrode line to sense a touch, wherein overlapping areas in which at least some of the plurality of X-touch lines overlap at least some of the plurality of Y-touch lines are different.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: March 12, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: KyungSu Ha, Wooram Oh
  • Patent number: 11930320
    Abstract: A flexible vibration module is disclosed. The flexible vibration module includes a piezoelectric composite layer, including: a plurality of piezoelectric portions each having a piezoelectric characteristic, where at least two of the plurality of piezoelectric portions have different sizes; and a flexible portion between the plurality of piezoelectric portions.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: YongWoo Lee, Yong-Su Ham, Taeheon Kim, Sung-Eui Shin
  • Patent number: 11929027
    Abstract: A display device includes a first driving transistor of a first subpixel, a second driving transistor of a second subpixel, a first shield metal, a second shield metal, a buffer layer, and an interlayer insulating film; a first source electrode included in the first driving transistor is positioned on or over the interlayer insulating film and electrically connected to the first shield metal through first holes in the interlayer insulating film and the buffer layer; a second source electrode included in the second driving transistor is positioned on or over the interlayer insulating film and electrically connected to the second shield metal through second holes in the interlayer insulating film and the buffer layer; a welding repair line is positioned between the buffer layer and the interlayer insulating film to overlap with at least a part of the first shield metal and be electrically connected to the second source electrode through a hole in the interlayer insulating film.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seongkwang Kim, Sungman Han, Kihyung Lee
  • Patent number: 11929038
    Abstract: A display device includes a display panel, a data driving circuit, and a timing controller, wherein the display panel includes a plurality of gate lines to which a scan signal is applied, a plurality of data lines to which a data voltage is applied, a plurality of reference voltage lines to which a reference voltage is applied, and a plurality of subpixels, wherein the data driving circuit senses a voltage on one reference voltage line selected from the plurality of reference voltage lines in a first detecting period and a second detecting period having different voltage detecting paths, and wherein the timing controller controls the data driving circuit, and determining whether or not the reference voltage line is abnormal using a sensing voltage detected from the reference voltage line.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: MooKyoung Hong
  • Patent number: 11929037
    Abstract: A display device includes a timing controlling part generating an image data, a data control signal and a gate control signal; a data driving part generating a data voltage using the image data and the data control signal; a gate driving part generating a gate voltage using the gate control signal; a display panel including a plurality of subpixels and displaying an image using the data voltage and the gate voltage; and a plurality of first MUX switches and a plurality of second MUX switches sequentially transmitting the data voltage to two of a same color among the plurality of subpixels.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Soon-Hwan Hong, Dae-Seok Oh, Seong-Yeong Kim, Kyung-Ah Chin
  • Patent number: 11930593
    Abstract: A stretchable display device comprises a display panel that includes a stretchable substrate where a plurality of emission elements is disposed, wherein the stretchable substrate is stretchable in at least one of a first direction and a second direction perpendicular to the first direction; a printed circuit film that includes a first driving circuit chip generating a drive control signal to be applied to the display panel and a second driving circuit chip receiving image data from outside and transferring the image data to the first driving circuit chip, wherein the printed circuit film is stretchable in at least one of the first direction and the second direction with respect to a stretch direction of the display panel.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hohyun Keum, Mingyu Kang
  • Patent number: 11929039
    Abstract: A display device can include a display panel having a plurality of pixels, each of the plurality of pixels including a plurality of sub pixels having different colors, a data driver to supply a data voltage to the plurality of pixels via a plurality of data lines, and a gate driver to supply a gate signal to the plurality of pixels via a plurality of gate lines. Also, the plurality of sub pixels are sequentially disposed in a same column, each of the plurality of data lines is divided into two sub data lines, and the two sub data lines are disposed on opposite sides of the plurality of sub pixels disposed in the same column.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: March 12, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SeungHwan Shin, WonHo Lee, YoungMin Jeong
  • Publication number: 20240080613
    Abstract: An apparatus includes a vibration member, a supporting member disposed at a rear surface of the vibration member, the supporting member including at least one first hole, a vibration apparatus accommodated into the at least one first hole, the vibration apparatus including a plurality of second holes, and a cover member covering the plurality of second holes.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Sungtae LEE
  • Publication number: 20240080629
    Abstract: An apparatus includes a display member configured to display an image, a front member at a front surface of the display member, a vibration apparatus at a rear surface of the display member, and an adhesive member between the display member and the front member, the adhesive member including a piezoelectric material.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 7, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Giyoun KIM, Eun ROH
  • Publication number: 20240077978
    Abstract: A flexible display device includes a display panel having an active area including a plurality of pixels displaying an image and a non-active area surrounding the active area, first data pads disposed in the non-active area adjacent to the active area of the display panel and electrically connected with the plurality of pixels, pads disposed in a direction away from the first data pads and the active area, second data pads disposed between the first data pads and the pads, and a protrusion pattern located between the second data pads and the third data pads and disposed on an upper part of the insulating layer.
    Type: Application
    Filed: November 2, 2023
    Publication date: March 7, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Kiyoung SUNG, SangHo KIM, Eunjin OH
  • Publication number: 20240080597
    Abstract: An apparatus for outputting sound includes a vibration plate, a vibration element at a rear surface of the vibration plate, and a vibration reflecting member spaced apart from the vibration element to face a lateral surface of the vibration element. The vibration reflecting member includes a metal material.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 7, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Taehyung Kim, YoungYoon You, GeunChang Park
  • Publication number: 20240080614
    Abstract: An apparatus includes a vibration member, a vibration apparatus configured to vibrate the vibration member, a supporting member at a rear surface of the vibration member with a first space therebetween, and an enclosure configuring a second space at a rear surface of the supporting member overlapping with the vibration apparatus. The first space may be connected with the second space.
    Type: Application
    Filed: August 25, 2023
    Publication date: March 7, 2024
    Applicant: LG Display Co., Ltd.
    Inventor: Sungtae Lee
  • Publication number: 20240080624
    Abstract: A vibration apparatus includes a frame having an accommodating space, a magnet accommodated into the accommodating space and including a first magnet and a second magnet at a periphery of the first magnet, a bobbin accommodated into the accommodating space and including a first bobbin at a periphery of the first magnet and a second bobbin at a periphery of the first bobbin, a coil including a first coil at a periphery of the first bobbin and a second coil at a periphery of the second bobbin, and a protection member including a first protection member connected to the first bobbin and a second protection member connected to the second bobbin. The second protection member is disposed apart from the first protection member.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Applicant: LG Display Co., Ltd.
    Inventor: Sungtae LEE
  • Publication number: 20240079522
    Abstract: A light-emitting device and a method for manufacturing the light-emitting device are discussed. The light-emitting device can include a nitride semiconductor structure including a first semiconductor layer, an active layer and a second semiconductor layer; a passivation pattern disposed on opposing side surfaces of the nitride semiconductor structure; a first electrode electrically connected to the first semiconductor layer; and a second electrode electrically connected to the second semiconductor layer. An upper surface of the passivation pattern can be disposed to be substantially coplanar with an upper surface of the second semiconductor layer.
    Type: Application
    Filed: August 16, 2023
    Publication date: March 7, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Dongwon YANG, Jung-Hun CHOI