公开(公告)号：US11886659B2

公开(公告)日：2024-01-30

申请号：US17977230

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  SangHyuck Bae

IPC: G06F3/041 ,  H10K59/40 ,  H10K59/122 ,  H10K59/123 ,  H10K59/124 ,  H10K59/131 ,  G06F3/044 ,  G09G3/3233

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  H10K59/122 ,  H10K59/123 ,  H10K59/124 ,  H10K59/131 ,  H10K59/40 ,  G06F3/0446 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0842

Abstract: A touch display device can include a substrate including a display area and a non-display area, a first touch electrode disposed on the substrate in the display area, a first touch line electrically connected to a touch pad disposed in the non-display area, a buffer layer disposed on the first touch electrode or the first touch line, a first driving transistor disposed on the buffer layer and included in a first sub-pixel overlapping the first touch electrode, a first gate line connected to the first sub-pixel, a first touch gate line disposed in parallel to the first gate line, and a first touch driving transistor disposed in the display area and controlling a connection between the first touch line and the first touch electrode.

公开(公告)号：US11803283B2

公开(公告)日：2023-10-31

申请号：US17964228

申请日：2022-10-12

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  HwiDeuk Lee ,  Sungsu Han

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0446 ,  G06F3/0412 ,  G06F3/0445 ,  G06F2203/04107

Abstract: Embodiments of the present disclosure are related to a touch display device, as a portion of a touch routing line is disposed on an area surrounded by a touch electrode line on an active area and is electrically connected to the touch electrode line, the touch routing line can be disposed on the active area while reducing an influence of a noise. Thus, as an additional arrangement of the touch routing line and a free adjustment of a connecting point of the touch routing line become possible without an increase of an area for arranging the touch routing line, a load by the touch routing line and a difference of a sensitivity according to positions of the touch electrode line are reduced and a performance of a touch sensing can be improved.

公开(公告)号：US11762505B2

公开(公告)日：2023-09-19

申请号：US17734820

申请日：2022-05-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Hwideuk Lee ,  Yangsik Lee ,  Changseok Oh

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047

CPC classification number: G06F3/0418 ,  G06F3/047 ,  G06F3/0412 ,  G06F3/0446

Abstract: A touch display device can include a plurality of touch electrodes disposed on an active area; a plurality of touch routing lines disposed on a non-active area positioned outside the active area and electrically connected to at least one of the plurality of touch electrodes; a plurality of signal lines disposed on an area between an area where the plurality of touch electrodes are disposed and an area where the plurality of touch routing lines are disposed; and a connection electrode disposed on a layer between a layer where the plurality of signal lines are disposed and a layer between the plurality of touch routing lines are disposed, and including at least one opening positioned on an area overlapping at least a portion of the plurality of signal lines.

公开(公告)号：US11449162B2

公开(公告)日：2022-09-20

申请号：US16188657

申请日：2018-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Yangsik Lee ,  JiHyun Jung ,  DeukSu Lee ,  JaeGyun Lee

IPC: G06F3/041 ,  G06F3/044 ,  G06F1/16 ,  H04M1/03 ,  H04M1/02 ,  G06F3/047

Abstract: Aspects of the present disclosure relate to a touch display panel and a touch display device. In a structure in which a function module is disposed in an active area of a touch display panel, by providing a structure in which touch sensors or touch lines adjacent to the function module are connected through a connecting pattern disposed outside the function module or a sensor connection line disposed in a bezel area of the function module, it is possible to provide a touch sensing function throughout the entire area where images are displayed in a structure including an area, where images are not displayed, such as a function module in an active area.

公开(公告)号：US11275462B2

公开(公告)日：2022-03-15

申请号：US16985013

申请日：2020-08-04

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  YongChan Park ,  Taeyun Kim ,  Yangsik Lee

IPC: G06F3/041 ,  G06F3/044

Abstract: The present disclosure relates to a touch display device, and more specifically, relates to a touch display device having a bottom emission structure. According to the touch display device, by disposing a touch electrode and a touch planarization layer between a substrate and a thin film transistor, a touch sensing function can be implemented without affecting the disposing of components for display driving. Further, by disposing a shielding electrode to which a constant voltage or a signal equal to a touch driving signal is applied between the touch electrode and a light emitting element, a noise of a touch sensing signal caused by display driving can be reduced and the performance of touch sensing performed together with the display driving can be improved.

公开(公告)号：US11216139B2

公开(公告)日：2022-01-04

申请号：US16939832

申请日：2020-07-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Yangsik Lee ,  HwiDeuk Lee ,  TaeWoo Kim ,  YongChan Park

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

Abstract: Provided is a touch display device including a folding area in an active area. The same pattern of touch electrodes can be maintained in both a reference area and a folding area and cracks on touch electrodes in the folding area, by applying a pattern structure of a touch insulation film disposed in the folding area. Therefore, the degradation of touch sensing performance, caused by cracks on the touch electrodes in the folding area, can be prevented and touch sensing sensitivity can be uniform in the reference area and the folding area, thereby improving touch sensing performance of the touch display device including the folding area.

公开(公告)号：US11036325B2

公开(公告)日：2021-06-15

申请号：US16928763

申请日：2020-07-14

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  HwiDeuk Lee ,  Jungho Jo

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

Abstract: Provided is a touch display device. Because a shielding electrode, which is disposed in a non-active area and electrically coupled between a common electrode and a common voltage supply line, is located between a touch routing line and a signal line, the effects of noise caused by the signal line on the touch routing line may be reduced. Further, an encapsulation portion located on the shielding electrode has a planarized structure. The resulting maintenance of a certain distance between the shielding electrode and the touch routing line may reduce noise caused by the signal line from indirectly affecting the touch routing line through the shielding electrode.

公开(公告)号：US10976870B2

公开(公告)日：2021-04-13

申请号：US16169125

申请日：2018-10-24

Applicant: LG Display Co., Ltd.

Inventor： Ruda Rhe ,  JiHyun Jung ,  Yangsik Lee

IPC: G06F3/044 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32 ,  G09F9/30 ,  G09G3/3225 ,  G06F3/041 ,  H01L27/12 ,  H01L51/00

Abstract: A display device and a method of fabricating the same. An active area having pixels defined therein is provided on a substrate. A pad area is provided on the substrate to receive signals to be transferred to the active area. A wiring area is provided on the substrate, with electrical lines being disposed therein to connect the active area and the pad area. An inorganic film is disposed in the active area and the wiring area, with a thickness of the inorganic film, located in the wiring area, is lower than a thickness of the inorganic film, located in the active area. Electrical lines are prevented from being broken in a bendable structure intended for a narrow bezel.

公开(公告)号：US10971562B2

公开(公告)日：2021-04-06

申请号：US16511570

申请日：2019-07-15

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  Yangsik Lee

IPC: H01L27/32 ,  H01L51/52

Abstract: A display apparatus includes a substrate having active and non-active areas; data lines and gate lines on the substrate; a driving line in the non-active area; a plurality of pixels connected to the data lines and the gate lines, each pixel including: a light emitting diode, and a driving transistor with the driving line under a cathode of the light emitting diode in the non-active area; a shield layer between the cathode and the driving line; an encapsulation layer on the cathode; a touch electrode on the encapsulation layer in the active area, and a touch line on the encapsulation layer to supply a touch signal to the touch electrode. The driving line is below the touch line in the non-active area. The encapsulation layer has a sloped surface, and the touch line is on the sloped surface such that the touch line has a corresponding slope.

公开(公告)号：US10852897B2

公开(公告)日：2020-12-01

申请号：US16542970

申请日：2019-08-16

Applicant: LG DISPLAY CO., LTD.

Inventor： HwiDeuk Lee ,  DeukSu Lee ,  JaeGyun Lee ,  Yangsik Lee

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

Abstract: Embodiments of the present disclosure relate to a touch panel and a touch display panel, wherein touch electrodes including bodies and wings are arranged so as to interlock with each other to thus reduce a difference in sensing sensitivity depending on position and a movement direction, thereby improving uniformity of touch sensing. In addition, the body and wing of the touch electrode can be arranged so as to be varied in length/width depending on the position thereof, so that the boundary area between the touch electrodes is increased, thereby improving the intensity of a touch-sensing signal, and so that sensing time is reduced, thereby enhancing the performance of touch sensing.