Patents Assigned to LG Display Co., Ltd.
  • Publication number: 20220376200
    Abstract: The present disclosure provides a quantum dot (QD) light emitting diode including: a first electrode; a second electrode facing the first electrode; a QD emitting material layer positioned between the first electrode and the second electrode and including a QD and an organic material; a hole auxiliary layer positioned between the first electrode and the QD emitting material layer; and an electron auxiliary layer positioned between the QD emitting material layer and the second electrode, wherein the organic material has a highest occupied molecular orbital (HOMO) level higher than a material of the hole auxiliary layer.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 24, 2022
    Applicants: LG DISPLAY CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Kyu-Nam KIM, Duk-Young JEON, Hyun-Jin CHO, Sun-Joong PARK
  • Publication number: 20220375417
    Abstract: A gate driving circuit includes a Q node controller generating a voltage of a Q node by using a first clock, a second clock, a third clock, and a start signal; a QB node controller generating a voltage of a QB node by using the second clock and the third clock; and an output part including a pull-up TFT and a pull-down TFT and generating an output signal including a first pulse interval, of a gate-on voltage, synchronized with a part of the first clock according to the voltages of the Q node and the QB node.
    Type: Application
    Filed: August 2, 2022
    Publication date: November 24, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sanghyun LIM, Nakwoo KIM, Donghyang LEE
  • Publication number: 20220377445
    Abstract: A display apparatus includes a display module that includes a display panel and is configured to display an image. A rear cover is on a rear surface of the display module. A first vibration generating module is in a first rear region of the rear cover, and a second vibration generating module in a second rear region of the rear cover. The rear cover includes a first hole that overlaps the first vibration generating module, and a second hole that overlaps the second vibration generating module.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 24, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: YoungYoon YOU, MinJin LEE, Taehyung KIM, GyungBo HA
  • Publication number: 20220371051
    Abstract: An apparatus may include a vibration member, a supporting member at a rear surface of the vibration member, and a vibration apparatus. The vibration apparatus may be disposed at the supporting member and may include a curved shape.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 24, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Taehyung KIM, GyungBo HA, SeulKi NAM, Saseong MOON
  • Publication number: 20220371052
    Abstract: An apparatus may include a vibration member, a rear cover at a rear surface of the vibration member, a first vibration device at a first rear region of the rear cover, and a second vibration device at a second rear region of the rear cover. The first vibration device may overlap at least one of a horizontal region and a middle region of the rear cover. The second vibration device may overlap a periphery region or a middle region of the rear cover.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 24, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Taehyung KIM, GyungBo HA, SeulKi NAM, Saseong MOON
  • Patent number: 11508306
    Abstract: A display apparatus can include a first thin film transistor and a second thin film transistor, the first thin film transistor has a bottom gate structure, the second thin film transistor has a top gate structure, and an s-factor value of the first thin film transistor is smaller than an s-factor value of the second thin film transistor.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: November 22, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JeongSuk Yang, YongSeok Park
  • Patent number: 11508267
    Abstract: A stretchable display device is provided. The display device includes a stretchable display panel, a flexible printed circuit board connected to the stretchable display panel, and a connecting circuit connecting the stretchable display panel and the flexible printed circuit board. The flexible printed circuit board includes a non-deformation region and a deformation region outside the non-deformation region. The flexible printed circuit board further includes a stretchable base substrate, a circuit component on the base substrate, and a compensating layer on the base substrate. The compensating layer is locally disposed in the non-deformation region and the circuit component is locally disposed in the non-deformation region.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Jin-Hyun Jung, Seok-Won Ji
  • Patent number: 11508935
    Abstract: An organic light-emitting diode panel for a lighting device includes a substrate including an array area having an emission area and a dummy area disposed outside the array area, an auxiliary wiring pattern, a first electrode, a passivation pattern, an OLED emission structure, a second electrode, an adhesive layer, and an encapsulation layer. The passivation pattern and the adhesive layer have an uneven boundary surface therebetween in the dummy area. Alternatively, a lower surface of the adhesive layer has a 3D structure. Thus, a moisture intrusion path between the passivation pattern and the adhesive layer of the dummy area of the substrate may be increased. Thus, degradation of the OLED emission structure due to external moisture intrusion may be reduced or prevented.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Taeok Kim, Shin-Bok Lee
  • Patent number: 11508310
    Abstract: A scan driver and an organic light emitting display apparatus including the same, where a narrow bezel is realized, are provided. The scan driver includes a plurality of stages, wherein each of the plurality of stages includes a Q1 node controller controlling a voltage of a Q1 node by using first and second clock signals whose phases are opposite to each other, a QB node controller controlling a voltage of a QB node by using the first and second clock signals, an output clock signal, and a start signal, a first transistor outputting a gate low voltage as a scan signal while the QB node is activated, and a second transistor outputting a gate high voltage as the scan signal while a Q2 node is activated, and outputting the gate low voltage as the scan signal when the Q2 node is bootstrapped to a voltage lower than the gate low voltage.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: November 22, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Yong Seok Park
  • Patent number: 11508328
    Abstract: Provided is a display device having the following structure and driving method thereof. The display device comprises a circular display panel including an active area on which an image is displayed and a non-active area on which no image is displayed, a gate driving circuit disposed in the non-active area to drive a plurality of gate lines, a first data driving circuit disposed in the non-active area to drive first-group data lines in the circular display panel, and a second data driving circuit disposed in the non-active area, in a position opposite to the first data driving circuit with respect to the active area, to drive second-group data lines in the circular display panel. The frequency of a data clock is reduced using a plurality of data driving circuits in a pad area. The bezel size of a circular display panel is reduced.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: ChangLok Hur, DaeJin Lee
  • Patent number: 11508941
    Abstract: A display apparatus includes a display panel having a front area and a side area, a main body supporting the display panel, an auxiliary member arranged inside the main body, and a semi-transmissive mirror arranged between the auxiliary member and the front area, wherein the side area of the display panel may be arranged inside the main body to face the semi-transmissive mirror. Since an image partially emitted from the display panel may be reflected toward the front area, auxiliary members such as a camera, an illumination sensor, and a proximity sensor may be arranged inside the main body (or below a display) to embody a full screen display, whereby a user's satisfaction may be enhanced and a manufacturing process may be simplified.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 22, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JongSung Kim, TaeHan Park, Howon Choi, Dongyoung Kim
  • Patent number: 11508312
    Abstract: An organic light emitting display device includes a first display area in which first sub-pixels are disposed, a second display area in which second sub-pixels are disposed in a density lower than the first display area, and a gate driver at least a part of which overlaps the second display area.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Miso Kim, YongMin Ha, Hanwook Hwang, Minsu Kim
  • Patent number: 11507233
    Abstract: A touch display device includes a touch sensor and having a touch area and a non-display area at a side of the touch area. The non-display area include a touch driving part. The touch display device includes: a plurality of driving electrodes in the touch area, the plurality of driving electrodes connected to each other through at least one bridge line to constitute a plurality of row touch driving lines; a plurality of sensing electrodes crossing the plurality of driving electrodes in the touch area; and at least one driving routing line from the at least one bridge line connecting the plurality of driving electrodes, wherein the at least one driving routing line extends from the touch area to the non-display area.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyang-Myoung Gwon, Ji-Hyun Jung, Deuk-Su Lee, Su-Chang An, Jae-Gyun Lee, Ru-Da Rhe
  • Patent number: 11508279
    Abstract: Embodiments of the present disclosure relate to a gate driving circuit, a display device, and a method for driving a display device. It is possible to reduce deterioration of the transistor controlled by a first QB node and a second QB node by alternately driving the first QB node and the second QB node of a gate circuit. In addition, by sensing a deterioration deviation between a transistor controlled by the first QB node and a transistor controlled by the second QB node and adjusting a driving period of the first QB node and a driving period of the second QB node based on the sensing result, it is possible to maximize or at least increase the lifetime of the transistor controlled by the first QB node and the transistor controlled by the second QB node, thereby improving the reliability of the gate circuit.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Juwon Kim, MooKyoung Hong
  • Patent number: 11507227
    Abstract: A touch display device and a method of driving the same are disclosed. The touch display device includes: a touch display panel displaying an image and sensing a touch; a plurality of touch electrodes disposed on the touch display panel and divided into a plurality of blocks; a plurality of gate lines disposed on the touch display panel and overlapping the plurality of touch electrodes; and a touch display driving circuit supplying a common voltage to the plurality of touch electrodes and supplying a gate voltage to the plurality of gate lines, wherein the common voltage has a first voltage before and after a first compensation period corresponding to a high level period of the gate voltage supplied to one of the plurality of gate lines firstly overlapping one of the plurality of touch electrodes and has a second voltage lower than the first voltage during the first compensation period.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Seok Park, Ki-Jeong Lee, Hyun-Ho Park, Sung-Jin Um
  • Patent number: 11505557
    Abstract: Discussed is an organic compound of Formula 1 and an organic light emitting diode and an OLED device including the organic compound. In the organic compound, Ar1 is a heteroaryl group comprising a nitrogen atom, and Ar2 is a C6 to C30 aryl group, and R is a C1 to C10 alkyl group. The organic compound may be included in an emitting material layer of the organic light emitting diode as a host such that an emitting efficiency and a lifespan of the organic light emitting diode and the OLED device are improved.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 22, 2022
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae-Wi Yoon, Bo-Min Seo, Chun-Ki Kim, Dong-Hoon Choi, Min-Ju Cho, Su-Na Choi, Mallesham Godumala
  • Patent number: 11507211
    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: November 9, 2021
    Date of Patent: November 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Haewon Lee, Jinseong Kim, JuHan Kim
  • Publication number: 20220367583
    Abstract: An organic light-emitting diode display includes an auxiliary connection line on a substrate; an auxiliary cathode on and connected to the auxiliary connection line; a passivation layer covering the auxiliary cathode; an overcoat layer on the passivation layer; a connection terminal connected to the auxiliary cathode on the overcoat layer; an undercut opening on the overcoat layer exposing a portion of the auxiliary cathode, an under area being in the undercut opening and under one side of the connection terminal; a bank having a size larger than the undercut opening and exposing the entire undercut opening; an organic emission layer on a region other than the under area in the undercut opening exposing the portion of the auxiliary cathode; and a cathode directly connected to the exposed portion of the auxiliary cathode on which the organic emission layer is not formed in the under area of the undercut opening.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Applicant: LG Display Co., Ltd.
    Inventor: Imkuk KANG
  • Publication number: 20220367526
    Abstract: A display apparatus can include a driving circuit on a device substrate, the driving circuit including a first thin film transistor and a second thin film transistor, a first insulating layer on the first thin film transistor and the second thin film transistor of the driving circuit, a second insulating layer on the first insulating layer, and a light-emitting device on the second insulating layer, the light-emitting device being electrically connected to the second thin film transistor of the driving circuit. Each of the first thin film transistor and the second thin film transistor includes an oxide semiconductor pattern and a gate electrode overlapping a portion of the oxide semiconductor pattern. The gate electrode has a stacked structure of a first hydrogen barrier layer and a low-resistance electrode.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Ki-Tae KIM, So-Young NOH, Ui-Jin CHUNG, Kyeong-Ju MOON, Hyuk JI
  • Publication number: 20220366856
    Abstract: Discussed is a display apparatus including a substrate including a display portion, a plurality of pixels connected to a gate line and a data line disposed in the display portion, and a gate driving circuit disposed in the display portion to drive the gate line. The gate driving circuit includes a stage circuit unit including a plurality of stage circuits respectively disposed in a plurality of division regions defined in the display portion, and a circuit repair portion configured to repair at least one of the plurality of stage circuits and including a plurality of repair patterns. Further, at least one of the plurality of repair patterns is configured to be electrically disconnected from the at least one of the plurality of stage circuits.
    Type: Application
    Filed: July 7, 2022
    Publication date: November 17, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: YOUNGIN JANG, KYUNGMIN KIM, HYUNDONG KIM