公开(公告)号：US12250846B2

公开(公告)日：2025-03-11

申请号：US17520921

申请日：2021-11-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoungwon Min ,  Jaekyeong Yun ,  Sangkyu Kim

IPC: H10K50/80 ,  H10K59/12 ,  H10K59/122 ,  H10K71/00 ,  H10K71/13 ,  H10K71/20

Abstract: A light emitting element include: a spherical conductive ball made of a metal material having conductivity; a light emitting layer covering a portion of a surface of the conductive ball; a metal layer formed on the light emitting layer; and an insulating layer covering at least a portion of a remaining portion of the surface of the conductive ball.

公开(公告)号：US11703982B2

公开(公告)日：2023-07-18

申请号：US17115531

申请日：2020-12-08

Applicant: LG Display Co., Ltd.

Inventor： JaeGyun Lee ,  Sangkyu Kim

IPC: G06F3/044 ,  G09G3/3208 ,  G06F3/041 ,  H10K59/40 ,  H10K59/131

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0446 ,  G06F3/04164 ,  G09G3/3208 ,  H10K59/131 ,  H10K59/40 ,  G09G2300/0426

Abstract: Discussed is a display device including an active area and a non-active area, a light emitting element including an anode electrode, a cathode electrode, and a light emitting layer, gate lines disposed in the active area and arranged in a first direction, data lines disposed in the active area and arranged in a second direction, data link lines connected to the data lines, an encapsulation layer on the cathode electrode, and including an organic layer and an inorganic layer, a touch sensor on the encapsulation layer, and including driving touch electrodes arranged in the first direction as the data lines, and sensing touch electrodes arranged in the second direction as the gate lines, driving touch lines connected to the driving touch electrodes, and overlapping with a first portion of the cathode electrode in the non-active area and sensing touch lines connected to the sensing touch electrodes.

公开(公告)号：US11626079B2

公开(公告)日：2023-04-11

申请号：US17526491

申请日：2021-11-15

Applicant: LG Display Co., Ltd.

Inventor： Sangkyu Kim ,  Jaekyeong Yun

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display device including a gate driver configured to apply gate signals to a plurality of gate lines; a data driver configured to apply data signals and a reference voltage to a plurality of data lines; and a display panel including a plurality of unit pixels, each unit pixel including a plurality of subpixels emitting different colors. Further, a first data line of the plurality of data lines is connected to a first subpixel and a second subpixel in a first unit pixel, and a second data line of the plurality of data lines is connected to the first subpixel and a third subpixel in the first unit pixel.

公开(公告)号：US11251243B2

公开(公告)日：2022-02-15

申请号：US16567836

申请日：2019-09-11

Applicant: LG Display Co., Ltd.

Inventor： Jeonphill Han ,  Jiheun Lee ,  Sangkyu Kim

IPC: H01L27/32

Abstract: The present disclosure provides an organic light-emitting display device having a plurality of pixels arranged along first and second directions that intersect each other. Each of the pixels includes: a transistor; at least one insulating layer on the transistor, and a pixel contact hole extends through the insulating layer and exposes part of the transistor; a first electrode on the at least one insulating layer and connected to the transistor via the pixel contact hole; and a filling layer on the first electrode and filling the pixel contact hole. A first bank has a plurality of first openings, and each of the first openings exposes at least one of the first electrodes. A second bank has a plurality of second openings, and each of the second openings exposes a plurality of the first electrodes arranged along the second direction.

公开(公告)号：US11009979B2

公开(公告)日：2021-05-18

申请号：US16172485

申请日：2018-10-26

Applicant: LG DISPLAY CO., LTD.

Inventor： JaeGyun Lee ,  Sangkyu Kim ,  JiHyun Jung ,  DeukSu Lee ,  Jaeseung Kim

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/3266 ,  H01L51/56 ,  H01L51/52 ,  G09G3/3233

Abstract: A touchscreen panel and a touch display device including the same are discussed. A plurality of touch lines disposed on the touchscreen panel include first touch lines and second touch lines. A portion or entirety of each of first touch lines connected to the first touch electrodes overlaps a corresponding one of second touch lines connected to the second touch electrodes. The degree of opening of the touchscreen panel is not lowered by the touch lines.

公开(公告)号：US10976865B2

公开(公告)日：2021-04-13

申请号：US16517163

申请日：2019-07-19

Applicant: LG DISPLAY CO., LTD.

Inventor： HwiDeuk Lee ,  Sangkyu Kim ,  Taeyun Kim ,  Yangsik Lee ,  Jaeseung Kim

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354 ,  G06F3/038

Abstract: Discussed are a touch display panel, a touch display device, and a driving method thereof, wherein a constant voltage is applied to a cathode electrode during a period for sensing a finger touch or a pen touch, thereby performing touch sensing while performing display driving. In addition, a signal having the same phase and potential as the signal applied to the touch electrode is applied to the cathode electrode during a period for transmitting an uplink signal to the pen, thereby eliminating parasitic capacitance between the touch electrode and the cathode electrode, preventing transmission delay of the uplink signal, improving the recognition rate of the uplink signal, and enhancing the performance of pen-touch sensing.

公开(公告)号：US10824287B2

公开(公告)日：2020-11-03

申请号：US16176478

申请日：2018-10-31

Applicant: LG DISPLAY CO., LTD.

Inventor： KwangJo Hwang ,  Sangkyu Kim ,  JiHyun Jung ,  DeukSu Lee ,  Jaeseung Kim

IPC: G06F3/045 ,  G06F3/044 ,  H01L27/32 ,  G06F3/041

Abstract: An aspect of the present disclosure may provide a display device including: a light-emitting layer including a plurality of light-emitting areas; a plurality of touch wiring lines arranged in a first direction so as to overlap the light-emitting area; and a touch electrode formed on the plurality of touch wiring lines. Further, a method of manufacturing the display device may be provided.

公开(公告)号：US10782806B2

公开(公告)日：2020-09-22

申请号：US15813098

申请日：2017-11-14

Applicant: LG Display Co., Ltd.

Inventor： Jaeseung Kim ,  JiHyun Jung ,  DeukSu Lee ,  Sangkyu Kim ,  JaeGyun Lee ,  Taeyun Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3225

Abstract: The present exemplary embodiments relate to a touch display device and a driving method thereof. A touch sensing time period is divided into a period when the touch is sensed by a self capacitive sensing manner and a period when the touch is sensed by a mutual capacitive sensing manner and a ground signal modulated to be the same as the touch driving signal is output to the display panel during the time period when the touch is sensed by the self capacitive sensing manner. By doing this, the parasitic capacitance in the display panel is reduced, sensitivity of touch sensing is improved, and various touch functions are provided.

公开(公告)号：US10761632B2

公开(公告)日：2020-09-01

申请号：US16190217

申请日：2018-11-14

Applicant: LG DISPLAY CO., LTD.

Inventor： KwangJo Hwang ,  Sangkyu Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3233

Abstract: The present disclosure provides a display device including: a transparent substrate; a circuit unit disposed on the transparent substrate and comprising a plurality of circuit areas and a plurality of light-emitting areas respectively corresponding to the plurality of circuit areas; a plurality of touch electrode rows, one of the plurality of touch electrode rows comprising a plurality of sub-touch electrodes disposed to overlap the plurality of light-emitting areas and a plurality of first connection portions configured to connect the plurality of sub-touch electrodes in a first direction; and a touch wiring line extending in a second direction and configured to supply a touch signal to one sub-touch electrode of the plurality of touch electrode rows. A method of manufacturing the display device is also provided.

公开(公告)号：US10331266B2

公开(公告)日：2019-06-25

申请号：US15639439

申请日：2017-06-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Seungrok Shin ,  Deuksu Lee ,  Sangkyu Kim ,  Jaegyun Lee ,  Taeyun Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G09G3/3266 ,  G09G3/3275 ,  G02F1/1333 ,  G02F1/1362 ,  H01L27/32

Abstract: A display device can include a display panel touch block groups, each including touch sensors, each touch sensor corresponds to one or more pixels defined by data lines and gate lines; a data driver that generates and supplies a modulated source signal for display data to a data line; a gate driver that generates a modulated scan-on signal for writing the modulated source signal to a pixel and supplies the modulated scan-on signal to the gate lines; and a touch sensor driver that supplies a touch driving signal to touch wires connected to corresponding touch sensors in each of the touch block groups, and selectively senses for touch on a touch block group, except for a restricted touch block group overlapping a gate line that is supplied with the modulated scan-on signal, in which the modulated source signal or the modulated scan-on signal is synchronized with the touch driving signal.