Patents Assigned to LG Display Co., Ltd.
  • Publication number: 20240098405
    Abstract: A vibration apparatus comprises a lower vibration structure, an upper vibration structure on the lower vibration structure, and an adhesive member between the lower vibration structure and the upper vibration structure. The lower vibration structure and the upper vibration structure are configured to generate sound waves having different frequencies.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Yong-Su HAM, YongWoo LEE, YuSeon KHO
  • Publication number: 20240099063
    Abstract: A display panel and a display device both include a first active layer disposed on a substrate and including a channel area, a first area positioned on a first side of the channel area, and a second area positioned on a second side of the channel area, a first conductor on the first area, a second conductor on the second area, and a first auxiliary electrode on the first conductor, wherein an area where the first auxiliary electrode is disposed includes a repair area, thereby facilitating to repair a subpixel while mitigating or minimizing instantaneous ghosting on panel.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 21, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Dohyung LEE, JuHeyuck BAECK, Jiyong NOH, HongRak CHOI, ChanYong JEONG
  • Publication number: 20240099102
    Abstract: An electroluminescent display device according to an exemplary aspect of the present disclosure includes a substrate including an active area and a non-active area outside the active area, a planarization layer over the substrate and extending from the active area to the non-active area, a bank on a planarization layer extending to the non-active area, an organic layer on the bank, a cathode on the organic layer, a capping layer over the cathode, a trench pattern configured in the non-active area, from which the capping layer, the cathode, and the organic layer are removed and a step alleviation layer filling the trench pattern and planarizing an upper portion of the trench pattern, the capping layer adjacent to the trench pattern may be recessed inwardly compared to the cathode, so that a bezel width is reduced, and the same time, reliability of moisture permeation prevention performance may be improved.
    Type: Application
    Filed: August 25, 2023
    Publication date: March 21, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventor: JooHwan SHIN
  • Publication number: 20240098917
    Abstract: A display device can include a display panel, a roller which guides sliding of the display panel, a plurality of flexible films connected to one end of the display panel, and a mandrel which supports the display panel and the plurality of flexible films. Also, the display device further includes a printed circuit board connected to the plurality of flexible films, in which the printed circuit board is fixed to the mandrel by a fastening unit.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: SeungHee LEE, MiJin HAN, Hanul LEE, Hyosung LEE
  • Publication number: 20240099130
    Abstract: The present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 21, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee YOON, Sung-Hoon JOO, Seon-Keun YOO, Ji-Cheol SHIN
  • Patent number: 11935443
    Abstract: A display defect detection circuit of a display defect detection system includes a preprocessing circuit configured to receive a capture image of a test pattern, displayed by a display panel, as a panel image including target Mura having a repetitive characteristic and preprocess the panel image to output a preprocessing image and a Mura detection circuit configured to decrease a total size of the preprocessing image on the basis of a size of the target Mura to generate a resize image, detect an edge component in the resize image to generate an edge map image having feature values, remove a feature value of a non-repetitive type among the feature values of the edge map image to generate a feature map image, and detect a display position of the target Mura on the basis of a final feature value of the target Mura calculated based on the feature map image.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yeong Yu, Jong Ju Hong
  • Patent number: 11934607
    Abstract: A touch display device and a display panel uniformly distributing capacitances between the touch lines and the touch electrodes are provided. The device includes a display panel in which a plurality of X-touch electrodes are electrically connected to form a X-touch electrode line and a plurality of X-touch electrode lines arranged in parallel to receive a plurality of touch driving signals, and a plurality of Y-touch electrode lines to transmit a plurality of touch sensing signals, and a touch driving circuit. A plurality of X-touch lines transmit the touch driving signals connect together the plurality of X-touch electrodes constituting a same X-touch electrode line through a plurality of contact holes. Distances between at least one Y-touch electrode line and the plurality of contact holes through which the plurality of X-touch lines are electrically connected to the X-touch electrodes adjacent to the at least one Y-touch electrode line are uniform.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Wooram Oh, YoungChul Kwon
  • Patent number: 11935482
    Abstract: A pixel circuit includes a first switch element turned on by a gate-on voltage of a first scan pulse to apply a data voltage to a first node; a second switch element turned on by a gate-on voltage of a second scan pulse to connect a second node to a third node; a third switch element turned on by a gate-on voltage of a light-emitting control pulse to apply a reference voltage to the first node; a fourth switch element turned on by the gate-on voltage of the light-emitting control pulse to connect the third node to a fourth node; and a fifth switch element turned on by a gate-on voltage of the second scan pulse to apply the reference voltage to the fourth node. A voltage higher than or equal to the pixel driving voltage is applied to the third node before generation of the first scan pulse.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Woo Kyu Sang, Moon Soo Chung
  • Patent number: 11935486
    Abstract: The present disclosure provides a display device including a display panel and a scan signal generator configured to generate a (1-1)th scan signal and a (1-2)th scan signal to be supplied to a first horizontal line of the display panel and a (2-1)th scan signal and a (2-2)th scan signal to be supplied to a second horizontal line of the display panel, wherein the scan signal generator includes a switch circuit, and an output circuit.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Young Lee, Dae Sung Jung, Sung Woo Lee
  • Patent number: 11935459
    Abstract: A display apparatus can include a display panel configured to display a black image and a real image, a gate driver configured to display gate signals to a plurality of gate lines provided in a display area of the display panel, and a controller configured to control the gate driver. Here, one-frame period for displaying the black image is shorter than one-frame period where the real image is displayed. Further, the gate driver can include a plurality of stages configured to supply the gate signals to the plurality of gate lines, and a plurality of dummy stages connected directly between the plurality of stages and the controller. In addition, gate start signals for driving the plurality of stages are supplied to the plurality of dummy stages by the controller.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: KeyYoung Yang, Jihoon Yu, Bumhee Han
  • Patent number: 11935475
    Abstract: A display device includes a display panel including a light emitting element, a driving transistor for providing a driving current to the light emitting element using a driving voltage, and a plurality of switching transistors for controlling the operation of the driving transistor; a gate driving circuit for supplying a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit for supplying a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit for supplying a data voltage to the display panel; and a timing controller for controlling a leakage suppression voltage to be supplied to the driving transistor in a leakage suppression period after a bias voltage is supplied to the driving transistor in a low speed mode in which the display panel is driven at a lower driving frequency.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Junhwan Noh, SungBae An
  • Patent number: 11937462
    Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong-Mook Choi, Nack-Youn Jung, Hee-Jin Kim, Hak-Min Lee, Myung-O Joo, Sung-Soo Park
  • Patent number: 11934601
    Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch l
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Haewon Lee, Jinseong Kim, JuHan Kim
  • Patent number: 11934604
    Abstract: Embodiments of the present disclosure are related to a touch display device, as a plurality of first line parts disposed on a first sensor layer and a plurality of second line parts disposed on a second sensor layer are alternated to make a touch line, at least a portion of different touch lines can be disposed to be overlapped each other, thus a plurality of touch lines can be disposed while reducing or minimizing a reduction of an aperture ratio or a transmittance of a subpixel due to an arrangement of the touch line. Accordingly, a touch sensitivity can be enhanced by further disposing touch electrodes, or the touch display device having a large area with many channels can be implemented easily by further disposing touch lines.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: YongChan Park, HwiDeuk Lee, Yangsik Lee, Hyunsuk Cho
  • Patent number: 11935491
    Abstract: A display device comprises a display panel including a plurality of sub-pixels defined by a plurality of gate lines and a plurality of data lines; and an auxiliary ground voltage line disposed between two adjacent data lines of the plurality of data lines.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seong-Wook Choi, Jin-Uk Lee
  • Patent number: 11935993
    Abstract: A stretchable display device according to present disclosure may include a base substrate, a plurality of first substrates on the base substrate, a plurality of second substrates connecting adjacent first substrates, inorganic insulating layers on the first substrates, an organic insulating layer disposed on the first substrates so as to cover top surfaces and side surfaces of the inorganic insulating layers. The device includes first connection lines disposed on the organic insulating layer on the first substrates and disposed on a second substrate extending in a first direction, second connection lines disposed between the inorganic insulating layers and the organic insulating layer on the first substrates and disposed on a second substrate extending in a second direction, and a step alleviating layer disposed between the second connection lines and the inorganic insulating layers.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Hyeseon Eom, Jonghyeok Im, Doohyun Yoon
  • Patent number: 11935501
    Abstract: A tiling display apparatus includes a set board configured to generate a control command signal and a plurality of display modules connected to one another through a first interface circuit based on a serial communication scheme, for executing a target operation corresponding to the control command signal, and the first interface circuit is implemented with a bidirectional serial interface having a feedback loop type between adjacent display modules of the plurality of display modules.
    Type: Grant
    Filed: October 29, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ho Bum Lee, Dae Sung Park, Tae Gung Kim
  • Patent number: 11934058
    Abstract: Disclosed are a display device, a multi-screen display device using the same, which include a minimized bezel area and a method for manufacturing the display device. The display device including a display substrate including a plurality of subpixels respectively provided in a plurality of pixel areas defined by a plurality of data lines and a plurality of gate lines, a line substrate bonded to the display substrate by using a substrate bonding member and including a plurality of data routing lines, and a side data connection member provided on one side of each of the display substrate and the line substrate to connect the plurality of data lines to the plurality of gate lines in a one-to-one relationship.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: WooNam Jeong, SeungChul Lee
  • Patent number: 11937460
    Abstract: A transparent display device is disclosed, which may enlarge a transmissive area and increase or maximize a light emission area in a non-transmissive area. The transparent display device includes a substrate provided with a display area including a transmissive area and a non-transmissive area, in which a plurality of subpixels are disposed, and a non-display area adjacent to the display area, at least one inorganic insulating film on the substrate, at least one organic insulating film on the at least one inorganic insulating film, anode electrodes provided in each of the plurality of subpixels over the at least one organic insulating film, a bank provided among the anode electrodes, a light emitting layer on the anode electrodes, and a cathode electrode on the light emitting layer, wherein the at least one inorganic insulating film, the at least one organic insulating film and the bank are provided in only the non-transmissive area.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: EuiTae Kim, ChangSoo Kim, KiSeob Shin, Soyi Lee
  • Patent number: D1018535
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yunchik Lee, Bomi Kim