Patents Assigned to LG Display Co., Ltd.
  • Publication number: 20240127760
    Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: SeongHo Cho, DaeSung Jung, HwanJoo Lee, Haksu Kim
  • Publication number: 20240127746
    Abstract: A light emitting display device includes a display panel including a first pixel group including a plurality of pixels in 2N rows. The light emitting display device further includes a second pixel group disposed subsequent to the first pixel group and including a plurality of pixels in 2N rows. The light emitting display device further includes an emission signal unit including a first emission stage for applying the same first emission signal to the first pixel group and a second emission stage for applying the same second emission signal to the second pixel group. In a first frame, a falling time of the first emission signal and a rising time of the second emission signal are different from each other.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong Ki KIM, Joon Young PARK, Jae Woo PARK, Sung Min CHO, Hyeong Kyu KIM
  • Publication number: 20240130208
    Abstract: An electroluminescent display device includes a display part configured to display an image. Also, the electroluminescent display device includes an encapsulation unit disposed over the display part and a heat dissipation sheet disposed over the encapsulation unit. The encapsulation unit includes a sealing member composed of a first adhesive layer, a second adhesive layer, and a barrier layer between the first adhesive layer and the second adhesive layer. Further, the encapsulation unit includes a hole in the second adhesive layer and the barrier layer. A side surface of the barrier layer may be electrically connected to the heat dissipation sheet through a conductive paste injected into the hole. Thus, it is possible to improve electromagnetic interference.
    Type: Application
    Filed: August 22, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: MinJoo KANG, SeongJun KIM
  • Publication number: 20240128423
    Abstract: A display apparatus can include a flexible substrate including a penetrating hole, a first thin film transistor including a first semiconductor layer, a second thin film transistor including a second semiconductor layer, and a first planarization layer on the first and second thin film transistors. The display apparatus can include a connection electrode on the first planarization layer electrically connected to the first or second thin film transistor, a second planarization layer on the first planarization layer, a first electrode on the second planarization layer electrically connected to the connection electrode, and a bank layer on the second planarization layer exposing a portion of the first electrode. The display apparatus includes a light-emitting layer on the portion of the first electrode exposed by the bank layer, the light-emitting layer including an emission material layer between first and second organic layers, and a second electrode on the light-emitting layer.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: So-Young NOH, So-Yeon JE, Ki-Tae KIM, Kyeong-Ju MOON, Hyuk JI
  • Publication number: 20240127744
    Abstract: An electroluminescent display apparatus includes a display panel including first and second pixel, a data voltage supply unit supplying the first pixel with a first data voltage of a first gate signal and supplying the second pixel with a second data voltage of a second gate signal in a vertical active period of a first frame and continuously supplying the second pixel with a sensing data voltage and a recovery data voltage of a third gate signal in a vertical blank period of the first frame, and a sensing circuit sensing an electrical characteristic of the second pixel based on the sensing data voltage in the vertical blank period. The recovery data voltage is supplied to the second pixel later than the sensing data voltage. The recovery data voltage supplied to the second pixel in the vertical blank period includes the first and second data voltages.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventor: Joon Min PARK
  • Publication number: 20240128243
    Abstract: A display device includes a substrate in which a plurality of sub pixels is defined; a first lower assembly electrode disposed in each of the plurality of sub pixels; an interlayer insulating layer disposed below the first lower assembly electrode; a second lower assembly electrode disposed below the interlayer insulating layer; a passivation layer disposed on the first lower assembly electrode and the second lower assembly electrode; and a first upper assembly electrode and a second upper assembly electrode which are disposed on the passivation layer and are disposed to be spaced apart from each other, and a minimum interval of the first lower assembly electrode and the second lower assembly electrode is smaller than a minimum interval of the first upper assembly electrode and the second upper assembly electrode on the plane.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Daeyoung SEO, Hun JANG
  • Publication number: 20240128270
    Abstract: A display apparatus can include a buffer layer on a flexible substrate; a first thin film transistor on the buffer layer including a first semiconductor pattern, a first gate electrode, a first source electrode and a first drain electrode, a second thin film transistor including a second semiconductor pattern, a second gate electrode, a second source electrode and a second drain electrode, and a passivation layer on the first and the second thin film transistors. Also, the display apparatus includes a planarization layer, a light-emitting device including a first electrode, a light-emitting layer and a second electrode on the planarization layer, and an encapsulating element on the light-emitting device. Also, the light-emitting device is electrically connected to the first thin film transistor, the first semiconductor pattern includes silicon, and the second semiconductor pattern includes an oxide semiconductor pattern, and the second gate electrode includes lower and upper electrodes.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Ki-Tae KIM, So-Young NOH, Ui-Jin CHUNG, Kyeong-Ju MOON, Hyuk JI
  • Publication number: 20240128277
    Abstract: A display device includes a data line transmitting a data voltage to each pixel, a power line supplying current to each pixel, wherein the data line and the power line are disposed on a substrate and extended along a first direction, a light shielding layer shielding a light emitting diode from light coming from outside, a gate line transmitting a gate voltage to each pixel and extended along a second direction intersecting the first direction, a gate insulating layer and a buffer layer disposed between the data line and the gate line, wherein the data line and the power line are disposed on a same layer as the light shielding layer.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: YounSub KIM, JongSik SHIM, ByeongUk GANG, SeongHwan HWANG
  • Publication number: 20240128407
    Abstract: A display device can include a first substrate having an active area and a non-active area, where the non-active area includes a plurality of first areas spaced apart from each other and a plurality of second areas disposed between the plurality of first areas. The display device can further include a plurality of first pad electrodes disposed on the plurality of first areas, a plurality of side lines disposed on the plurality of first pad electrodes, and a plurality of step compensation layers disposed in the plurality of second areas. By additionally forming the step compensation layers in the second areas, it is possible to compensate for step differences between the plurality of first areas and the plurality of second areas.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: JeeHun KIM, Hyeran JEONG, Sungeun BAE, Hyo Seob LEE
  • Publication number: 20240130200
    Abstract: A display device in one example includes a substrate having a display area displaying an image and a non-display area adjacent to the display area, and a thin film transistor disposed on the substrate and including a semiconductor layer, a gate electrode, a source electrode and a drain electrode. The display device further includes an emitting element disposed on the thin film transistor in the display area and including a first electrode, an emitting layer and a second electrode, an encapsulating part disposed on the emitting element, a first line disposed in the non-display area and including a same metallic material as the first electrode and connected to the second electrode, and a plurality of first dams disposed on the first line. The first line includes a plurality of open parts, and the plurality of first dams are disposed on the plurality of open parts.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventor: Min-Ji KANG
  • Publication number: 20240126133
    Abstract: A light path control device includes a substrate, a first viewing angle control member on the substrate comprising a first electrode, a second electrode, and a liquid crystal layer between the first electrode and the second electrode, and a second viewing angle control member on the first viewing angle control member comprising light shielding patterns patterned at predetermined intervals.
    Type: Application
    Filed: July 7, 2023
    Publication date: April 18, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Youngki SONG
  • Patent number: 11961452
    Abstract: A display device and a display driving method are disclosed. The display device includes a display panel including gate lines, data lines, and a plurality of subpixels including a plurality of driving transistors, a gate driving circuit configured to apply scan signals to the gate lines, a data driving circuit configured to convert image data into data voltages and apply the data voltages to the data lines, and a timing controller configured to compensate the data voltages applied to the plurality of driving transistors based on a real-time sensing process of characteristic values of the plurality of driving transistors, and control an application of a recovery voltage to at least one driving transistor of the plurality of driving transistors a plurality of times within a blank period of a frame period based on a reference period to reset the at least one driving transistor during the blank period.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jeonghyo Park, GeunWoo Lee
  • Patent number: 11963423
    Abstract: A transparent display device comprises: a first substrate including a display area and first to fourth bezel areas surrounding the display area, wherein the display area includes a plurality of pixel regions each including an emitting portion and a transparent portion; a second substrate facing the first substrate; a transparent dam between the first and second substrates and in the first to fourth bezel areas; a first pad electrode on the first substrate and in the first bezel area; and a first color filter pattern on the second substrate and in the first bezel area.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: April 16, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Da-Woon Jeong, Su-Yeon Lee, Sung-Hee Kim, Jae-Bin Song, Sung-Hee Park
  • Patent number: 11960669
    Abstract: Disclosed is a an in-cell type display device including a touch screen function which is capable of preventing a luminance from being changed in accordance with a viewing angle, and omitting a process of connecting touch electrodes provided in an upper substrate with Tx driver and Rx driver connected with a lower substrate, wherein the display device includes a lower substrate, a thin film transistor layer including thin film transistors provided on the lower substrate, an encapsulation layer provided on the thin film transistor layer, color filters provided on the encapsulation layer, a black matrix provided between the color filters and provided on the encapsulation layer, and first touch electrodes overlapped with the black matrix.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: HeeSeok Yang, ChoongKeun Yoo, Jiho Ryu, Jang Jo
  • Patent number: 11961478
    Abstract: Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Min Sung Kang, Hee Jung Hong, Seong Ho Cho
  • Patent number: 11960676
    Abstract: A transparent display device with a touch sensor is provided, which may minimize or reduce loss of light transmittance due to a touch sensor and a touch line and may detect a defective touch sensor among a plurality of touch sensors provided in a touch block. The transparent display device comprises a substrate provided with a transmissive area and a non-transmissive area, a touch sensor provided in the transmissive area over the substrate, including a touch sensor electrode, a pixel provided in the non-transmissive area over the substrate, including a plurality of light emitting elements comprised of an anode electrode, a light emitting layer and a cathode electrode, a reference line provided in the non-transmissive area, a plurality of switching transistors connecting the reference line with each of the plurality of light emitting elements, and a touch transistor connecting the reference line with the touch sensor.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: JaeHee Park, MiReum Lee
  • Patent number: 11958275
    Abstract: A display apparatus includes a display panel, a back plate disposed on one surface of the display panel, and a cushion plate. The cushion plate includes an adhesive member disposed on one surface of the back plate, and a conductive structure disposed on one surface of the adhesive member, wherein the conductive structure covers each of a side surface of the adhesive member, a side surface of the back plate, and a side surface of the display panel.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 16, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Chanhyeok Park
  • Patent number: 11963396
    Abstract: A display device includes an encapsulating structure disposed on an array substrate, a bottom cover accommodating therein the array substrate and the encapsulating structure, and at least one heat dissipation pattern disposed between the encapsulating structure and the bottom cover. The heat dissipation pattern may include a porous framework layer and a heat emission layer composed of particles coated on the framework layer. This heat dissipation pattern may allow heat transfer from the encapsulating structure to the bottom cover to be performed more quickly and efficiently.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Minjoo Kang, Dohyung Kim, Jaeho Choi
  • Patent number: 11963391
    Abstract: Disclosed is an organic light emitting diode display device. The disclosed organic light emitting diode display device includes an overcoat layer disposed on a substrate that is divided into an emissive area and a non-emissive area, and has multiple micro lenses in the emissive area and at least one depression in the non-emissive area. The organic light emitting diode display device further includes: a first electrode disposed on the overcoat layer, wherein the first electrode is disposed in the entire emissive area and in a part of the non-emissive area; a bank pattern disposed in the non-emissive area so as to be superposed on the depression; an organic light emitting layer disposed on the substrate; and a second electrode disposed on the organic light emitting layer. Accordingly, the organic light emitting diode display device may prevent light leakage.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jintae Kim, Sookang Kim, Soyoung Jo, Wonhoe Koo, Jihyang Jang, Hyunsoo Lim, Mingeun Choi
  • Patent number: D1022937
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: April 16, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyunjung Song, Jeongeon Seong, Soonmin Kwon, Chiyoung Lee, Seokhyo Cho, Seungwon Seol