Patents Assigned to LG Display Co., Ltd.
  • Patent number: 11903292
    Abstract: Provided is an organic light emitting display device. The organic light emitting display device includes a lower substrate including sub-pixels, a display area, a non-display area, and an exposed area; a lower touch pad unit in the non-display area and adjacent to the exposed area on the lower substrate; an upper substrate disposed opposite to the remaining area excluding the exposed area of the lower substrate; an upper touch pad unit on the upper substrate so as to correspond to the lower touch pad unit; a first connection electrode in direct contact with the lower touch pad unit; a second connection electrode opposite to the first connection electrode and in direct contact with the upper touch pad unit; and a self-assembly contact member disposed between the first connection electrode and the second connection electrode so as to electrically connect the first connection electrode and the second connection electrode.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: JoongHa Lee, DongKyu Lee, BooYoung Kim, YoungJun Hong, Onesouk Cho, SeongHoon Kim, SeYoung Kim, Jaehwan Yun, WonGyu Jeong, WooJin Sim
  • Patent number: 11903286
    Abstract: A transparent display device is disclosed, which may reduce a yellowish phenomenon in a non-display area. The transparent display device comprises a substrate provided with a display area in which a plurality of subpixels are disposed, and a non-display area adjacent to the display area, a gate driver provided in the non-display area over the substrate, including a plurality of stages, a metal line provided between the gate driver and the display area, and a trench provided between the metal line and the display area.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Soyi Lee, ChangSoo Kim, EuiTae Kim, KiSeob Shin
  • Patent number: 11903307
    Abstract: Compounds, and polymers thereof, useful dopants for light emitting diodes and light emitting display devices are disclosed. The compounds have the following structure Formula 1: wherein R1, R2, R3, R4, L1, L2, L3, L4, a, b, c and d are as defined herein. Light emitting diodes including compounds of Formula 1 (and polymers thereof, i.e., compounds of Formula 3), light emitting devices including the same as well as methods associated with preparation and use of such compounds, polymers and devices are also provided.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Ju Ryu, Kyu-Nam Kim, Jae-Hyun Park
  • Patent number: 11903251
    Abstract: A display device has a touch sensor. The display device includes a first substrate including a plurality of sub-pixels, a thin film transistor in each sub-pixel of the first substrate, an organic light emitting element in each sub-pixel of the first substrate, an insulating layer over the thin film transistor and the organic light emitting layer, a touch sensor over the insulating layer, a passivation layer covering the touch sensor, and a second substrate disposed over the passivation layer, wherein a plurality of concave portions are formed in the insulating layer and the concave portions are filled with the passivation layer to form adhesive reinforcing portion.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Tae-Ryong Kim, Ye-In Hong
  • Patent number: 11903283
    Abstract: A method for manufacturing a display apparatus can include providing a first gate electrode on a substrate; providing a first active layer which overlaps with a portion of the first gate electrode; providing a second active layer on the substrate spaced apart from the first active layer; providing a first source electrode and a first drain electrode connected with the first active layer; providing a second gate electrode which overlaps with at least a portion of the second active layer; providing a second source electrode and a second drain electrode connected with the second active layer. Also, the method includes selectively providing conductivity to the second active layer, in which the first source electrode, the first drain electrode, the second gate electrode, the second source electrode, and the second drain electrode are manufactured at a same time.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Yewon Hong
  • Patent number: 11903280
    Abstract: A display device includes a display panel including a plurality of subpixels and a plurality of signal lines, the display panel defining a display area having a first optical area and a normal area outside of the first optical area, and a non-display area. The first optical area includes a plurality of light emitting areas and a plurality of first transmission areas, and the normal area includes a plurality of light emitting areas. The display panel includes a plurality of first horizontal lines, among the signal lines, disposed through the first optical area. The first horizontal lines include a bypass line connected to subpixels at both boundaries of the first optical area and not connected to other subpixels inside of the first optical area, and a non-bypass line connected to the subpixels at both boundaries of the first optical area and the subpixels inside of the first optical area.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Youngsung Cho, Byeong-Seong So
  • Patent number: 11903291
    Abstract: An organic light-emitting display device having a touch sensor is discussed. The organic light-emitting display device includes a touch sensor formed in a single-layer structure and disposed on an encapsulation unit disposed on a light-emitting element. First and second bridges and first and second touch electrodes included in the touch sensor having a single-layer structure are formed of the same material as each other in the same plane, e.g., on the uppermost layer of the encapsulation unit, thereby simplifying the structure thereof and reducing costs.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyang-Myoung Gwon, Ji-Hyun Jung, Deuk-Su Lee, Su-Chang An, Jae-Gyun Lee, Ru-Da Rhe, Yang-Sik Lee
  • Patent number: 11903277
    Abstract: According to an exemplary embodiment of the present disclosure, a display device includes a display panel divided into a display area, a non-display area, a bending area, and a pad area and bent in one direction in the bending area; a plurality of pixels disposed in the display area; at least one gate driver disposed in the non-display area and configured to supply a gate voltage to the plurality of pixels; flexible films connected to a plurality of pads disposed in the pad area; and at least one electrostatic discharge (ESD) circuit disposed in the pad area and connected to the at least one gate driver through a discharge line.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: SunWoong Han, Sang-Il Shin, Jaechang Kang
  • Patent number: 11899863
    Abstract: An organic light emitting diode display device including a touch sensor and a manufacturing method of the same are discussed. The display device includes a substrate having light emitting areas defined therein; light emitting elements provided on the light emitting areas on the substrate; a first encapsulation film covering the light emitting elements; color filters provided on the first encapsulation film to respectively correspond to the light emitting areas; bridge electrodes provided between the plurality of color filters on the first encapsulation film; a bank insulating film provided on the first encapsulation film to cover the bridge electrodes and surround the color filters; touch electrodes provided by being overlapped with the bridge electrodes on the bank insulating film; and a planarization film covering the color filters and the bank insulating film and exposing the touch electrodes.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jihun Lee, Chulho Kim, Namkook Kim, Jungeun Lee, Sungwoo Choi, Hwankeon Lee, Youngkyun Moon
  • Patent number: 11899874
    Abstract: A touch display device is disclosed. Since a touch electrode line included in the display device is divided into two or more touch electrode line parts connected to different touch routing lines, an entire load of the touch electrode line and the touch routing line can be reduced. As a portion of the touch routing line is disposed on an active area and touch routing lines connected to different touch electrode line parts are connected to each other between the active area and a touch driving circuit, an entire load can be reduced without an increase of a non-active area and an increase of a channel due to the touch routing lines, and a performance of a touch sensing can be improved.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: JaeGyun Lee, JiHyun Jung, DeukSu Lee, SuChang An, Ruda Rhe, Hyangmyoung Gwon
  • Patent number: 11899501
    Abstract: A disclosed apparatus includes a panel configured to vibrate, a vibration generator configured to vibrate the panel, a first rear cover configured to support the vibration generator, a second rear cover configured to cover at least a portion of the first rear cover and the vibration generator, and a sound generator between the panel and the second rear cover.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JeongMan Lee, Sunho Park
  • Patent number: 11903235
    Abstract: A transparent display device includes a substrate having an emission area and a transparent area, a light-emitting diode provided in the emission area and including a first electrode, a light-emitting layer and a second electrode, a first connection pattern provided between the emission area and the transparent area and formed of a same material and on a same layer as the first electrode, and a second connection pattern provided in the transparent area and connected to the first connection pattern, wherein the second electrode overlaps the first and second connection patterns and are electrically connected to the first and second connection patterns.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventor: Jun-Ho Youn
  • Patent number: 11900857
    Abstract: A display device includes a display panel configured to display an image, a timing controller configured to control the display panel, a memory operating in association with the timing controller, and a data transmission/reception circuit configured to write data to the memory or to read data from the memory under the control of the timing controller, wherein the data transmission/reception circuit includes a transmission direction setting unit configured to set a data transmission/reception path depending on a data transmission period or a data reception period in order to avoid collision between input and output during data transmission/reception.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Byung Jae Lee, A Rom So
  • Patent number: 11899319
    Abstract: Disclosed is a display device having a thin film transistor substrate, which may prevent afterimage and flicker defects by reducing the non-uniformity of an electric field. In the thin film transistor substrate, a pixel electrode includes a transparent edge electrode and a transparent inner electrode, which are spaced apart from each other with a first slit having a first width interposed therebetween, and a common electrode is exposed from the other-side end of the transparent edge electrode by a second width, which is smaller than the first width, in the width direction of a data line. As such, an inner area and an edge area in each sub pixel have uniform electric field distribution.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Do-Yeon Kim, Byung-Sam Min, Jong-Hyun Kim
  • Patent number: 11899165
    Abstract: Embodiments of the present disclosure relate to a display panel and a method of manufacturing the same. A high-reliability display panel with a reduced bezel area or substantially no bezel area and a method of manufacturing the same.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventor: Shin-Bok Lee
  • Patent number: 11900843
    Abstract: A display device includes a display panel in which a plurality of subpixels including a light emitting element that emits light by a high potential voltage supplied to a driving voltage line, and a plurality of reference voltage lines connected to the plurality of subpixels to detect a characteristic value are disposed; a data driving circuit configured to supply a low potential voltage to the driving voltage line through the plurality of reference voltage lines; a base voltage switching circuit configured to control a ground voltage node connected to a cathode electrode of the light emitting element; a current detecting circuit configured to detect a current flowing between the base voltage node and a ground; and a timing controller configured to control the base voltage switching circuit and generate a defect detection signal for the driving voltage line according to a current detected by the current detecting circuit.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jinwon Kim, MooKyoung Hong
  • Patent number: 11899312
    Abstract: A display apparatus includes a liquid crystal panel disposed on a back-light unit; and a viewing angle control unit disposed between the back-light unit and the liquid crystal panel, wherein the viewing angle control unit includes light-blocking patterns having a light-blocking material and variable patterns disposed between a first control electrode and a second control electrode, wherein the variable patterns are extended in a direction perpendicular to the light-blocking patterns, and wherein transmittance of each variable pattern is changed according to a voltage applied to the first control electrode and the second control electrode, thereby preventing a distraction of people around a user by selectively sharing a realized image.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Yeong Choi, Joon Ho Lee, Dae Yun Im
  • Patent number: 11903238
    Abstract: Provided is a display device. The display device includes a flexible substrate comprising an active area, and a non-active area surrounding a border of the active area; a thin-film transistor and a light-emitting element on the active area; an encapsulation unit over the thin-film transistor and the light-emitting element; a hole formed in the active area by removing a portion of the flexible substrate; a first common layer disposed on a side surface of the hole, extended from the light-emitting element and comprising same elements with the light-emitting element; and a tip protruding from the side surface of the hole. The first common layer disposed adjacent to the tip is disconnected from the light-emitting element.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Chan Park, MoonGoo Kim, HyunWoo Cho, Wooseok Roh, HeungJu Jo, JeongKweon Park, SangGul Lee
  • Patent number: 11901461
    Abstract: Disclosed are a thin film transistor, a display apparatus comprising the thin film transistor, and a method for manufacturing the thin film transistor. The thin film transistor comprises an active layer, and a gate electrode spaced apart from the active layer and configured to have at least a portion overlapped with the active layer, wherein the active layer includes a silicon semiconductor layer, and an oxide semiconductor layer which contacts the silicon semiconductor layer, wherein at least a portion of the silicon semiconductor layer and at least a portion of the oxide semiconductor layer are overlapped with the gate electrode.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: February 13, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jaeman Jang, PilSang Yun, Jiyong Noh, InTak Cho
  • Patent number: 11900889
    Abstract: A display device includes a display panel in which a plurality of pixels is disposed, a timing controller configured to output a sensing pulse and a video data signal, and a data driver configured to apply sensing pulse and outputs a data voltage to the plurality of pixels according to the video data signal, in which the data driver includes a plurality of source integrated circuits, each of the plurality of source integrated circuits receives a plurality of delay pulses, and the timing controller compares timings of the plurality of delay pulses and compensate for the video data signal.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyeongi Lee, JaeHong Kim