公开(公告)号：US11762523B2

公开(公告)日：2023-09-19

申请号：US17881547

申请日：2022-08-04

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  DeukSu Lee ,  JaeGyun Lee ,  Yangsik Lee

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/0445 ,  G06F2203/04112

Abstract: A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.

公开(公告)号：US11733804B2

公开(公告)日：2023-08-22

申请号：US17840041

申请日：2022-06-14

Applicant: LG Display Co., Ltd.

Inventor： SeungRok Shin ,  Sangkyu Kim ,  DeukSu Lee

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/0446 ,  G06F3/04166 ,  G06F2203/04107

Abstract: The disclosure is related to a touch display device, a shield electrode separated from a common electrode of a light-emitting element can be disposed on an area overlapping a touch electrode under an encapsulation layer, and a shield driving signal corresponding to a signal supplied to the touch electrode can be supplied to the shield electrode. Thus, the shield electrode prevents or at least reduces formation of a parasitic capacitance between an electrode or a signal line for a display driving and the touch electrode, and a touch detection performance can be improved by implementing a noise blocking function by the shield electrode.

公开(公告)号：US11687198B2

公开(公告)日：2023-06-27

申请号：US17737923

申请日：2022-05-05

Applicant: LG DISPLAY CO., LTD.

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

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/40 ,  H10K59/131 ,  H10K59/12

CPC classification number: G06F3/044 ,  G06F3/0443 ,  G06F3/0448 ,  G06F3/04164 ,  H10K59/40 ,  G06F2203/04103 ,  G06F2203/04112 ,  H10K59/1201 ,  H10K59/131

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：US20230117610A1

公开(公告)日：2023-04-20

申请号：US17884287

申请日：2022-08-09

Applicant: LG Display Co., Ltd.

Inventor： SeungRok Shin ,  Jeonghoon Lee ,  DeukSu Lee ,  Yoonnara Jang

IPC: G06F3/041

Abstract: Embodiments of the present disclosure are related to a touch display device, in a structure that a touch electrode line is disposed to be divided on a plurality of sub-areas included in an active area, by synchronizing a driving of the touch electrode line adjacent to a boundary of the sub-area, or by performing a differential sensing processing by sharing a touch sensing signal detected from the touch electrode line, thus an accuracy of a touch sensing for an area adjacent to the boundary of the sub-area can be improved.

公开(公告)号：US11614828B2

公开(公告)日：2023-03-28

申请号：US17845603

申请日：2022-06-21

Applicant: LG Display Co., Ltd.

Inventor： JaeGyun Lee ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An ,  Ruda Rhe ,  Hyangmyoung Gwon

IPC: G06F3/041 ,  G06F3/044

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.

公开(公告)号：US20230004274A1

公开(公告)日：2023-01-05

申请号：US17842250

申请日：2022-06-16

Applicant: LG Display Co., Ltd.

Inventor： SeungRok Shin ,  Sangkyu Kim ,  DeukSu Lee

IPC: G06F3/041

Abstract: A touch display device and a touch driving circuit are configured to drive at least one of the plurality of first touch electrode lines disposed in a first area with a first touch driving signal having a first touch driving frequency, and drive at least one of the plurality of second touch electrode lines disposed in a second area with a second touch driving signal having a second touch driving frequency that is different from the first touch driving frequency. Each of the first touch driving frequency and the second touch driving frequency is different from a display driving frequency related to display driving. to the touch display device reduces the influence of noise, increases the signal-to-noise ratio, and reduces the influence of driving the display, thereby improving the touch sensitivity.

公开(公告)号：US11513641B2

公开(公告)日：2022-11-29

申请号：US17187146

申请日：2021-02-26

Applicant: LG Display Co., Ltd.

Inventor： SangHyuck Bae ,  BuYeol Lee ,  SeungRok Shin ,  CheolSe Kim ,  DeukSu Lee ,  Hyunwoo Jang ,  Jaeseung Kim ,  YoungGyu Kim ,  Hyunsuk Cho

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

Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.

公开(公告)号：US11327610B2

公开(公告)日：2022-05-10

申请号：US17028661

申请日：2020-09-22

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：US11036342B2

公开(公告)日：2021-06-15

申请号：US16397955

申请日：2019-04-29

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  DeukSu Lee ,  JaegYun Lee ,  Yangsik Lee

IPC: G06F3/044

Abstract: A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.

公开(公告)号：US10949038B2

公开(公告)日：2021-03-16

申请号：US16698781

申请日：2019-11-27

Applicant: LG Display Co., Ltd.

Inventor： Hyangmyoung Gwon ,  SeungHee Nam ,  Kwon-Shik Park ,  DeukSu Lee ,  BuYeol Lee ,  Yangsik Lee

IPC: G06F3/044 ,  G06F3/041 ,  H01L27/32 ,  H01L51/52

Abstract: An organic light-emitting display panel having a built-in touchscreen includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. An organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.