公开(公告)号：US20230214047A1

公开(公告)日：2023-07-06

申请号：US17963869

申请日：2022-10-11

Applicant: LG Display Co., Ltd.

Inventor： Sungsu HAN ,  HwiDeuk LEE ,  Yangsik LEE ,  JuHong KIM

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

CPC classification number: G06F3/04164 ,  H01L27/323 ,  H01L27/3258 ,  G06F3/0443 ,  G06F3/0412 ,  G06F2203/04111

Abstract: A display device can include a substrate in which a plurality of pixels each including an emissive area and a transmissive area is disposed. The display device can further include a touch electrode in the transmissive area, and a plurality of first touch connection lines extended in a first direction and electrically connecting the touch electrodes respectively disposed in the pixels adjacent to each other. Further, the display device can include a reference line on the substrate in the emissive area and extended in a second direction different from the first direction, and a plurality of touch lines extended in the second direction in the emissive area and disposed on a plurality of insulating layers covering the reference line. Furthermore, the display device can include a planarization layer covering the plurality of touch lines, and a plurality of light emitting diodes on the planarization layer in the emissive area.

公开(公告)号：US20230214036A1

公开(公告)日：2023-07-06

申请号：US17979707

申请日：2022-11-02

Applicant: LG Display Co., Ltd.

Inventor： JuHong KIM ,  HwiDeuk LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0443 ,  G06F2203/04111

Abstract: A transparent touch display device according to embodiments of the disclosure may comprise a substrate including a pixel area, a first transmissive area positioned on a first side of the pixel area, and a second transmissive area positioned on a second side of the pixel area, a driving transistor disposed in the pixel area, an anode electrode disposed in the pixel area, positioned on the driving transistor, and electrically connected with a source electrode or drain electrode of the driving transistor, a light emitting layer positioned on the anode electrode, a display cathode electrode positioned on the light emitting layer, a first touch cathode electrode disposed in the first transmissive area and positioned on a first side of the display cathode electrode, a second touch cathode electrode disposed in the second transmissive area and positioned on a second side of the display cathode electrode, an encapsulation layer disposed on the display cathode electrode, the first touch cathode electrode, and the second touch cathode electrode, and a first touch line overlapping the first touch cathode electrode.

公开(公告)号：US20230217777A1

公开(公告)日：2023-07-06

申请号：US17980430

申请日：2022-11-03

Applicant: LG Display Co., Ltd.

Inventor： JuHong KIM ,  HwiDeuk LEE

IPC: H10K59/40 ,  G06F3/041 ,  H10K59/126 ,  H10K59/131

CPC classification number: H10K59/40 ,  G06F3/0412 ,  H10K59/126 ,  H10K59/131

Abstract: The display device includes a substrate in which a plurality of pixels each including an emissive area and a transmissive area is disposed. The device includes a plurality of touch lines and a plurality of data lines in the emissive area. The device includes a compensation electrode coupled to at least one of the plurality of touch lines. The device includes a planarization layer on the plurality of touch lines and the plurality of data lines and including an opening corresponding to the transmissive area. The device includes a light emitting diode on the planarization layer in the emissive area and a touch electrode disposed within the opening in the transmissive area. The plurality of touch lines includes a first touch line and a second touch line closer to the plurality of data lines than the first touch line. The compensation electrode is coupled to the first touch line.

公开(公告)号：US20230214038A1

公开(公告)日：2023-07-06

申请号：US18066218

申请日：2022-12-14

Applicant: LG Display Co., Ltd.

Inventor： JuHong KIM ,  HwiDeuk Hwan LEE

IPC: G06F3/041

CPC classification number: G06F3/0412

Abstract: A transparent touch display device according to embodiments of the disclosure may comprise a substrate including a pixel area, a first transmissive area positioned on a first side of the pixel area, and a second transmissive area positioned on a second side of the pixel area, a driving transistor disposed in the pixel area, an anode electrode disposed in the pixel area, positioned on the driving transistor, and electrically connected with a source electrode or drain electrode of the driving transistor, a light emitting layer positioned on the anode electrode, a display cathode electrode positioned on the light emitting layer, a first touch cathode electrode disposed in the first transmissive area and positioned on a first side of the display cathode electrode, a second touch cathode electrode disposed in the second transmissive area and positioned on a second side of the display cathode electrode, an encapsulation layer disposed on the display cathode electrode, the first touch cathode electrode, and the second touch cathode electrode, and a first touch line overlapping the display cathode electrode.

公开(公告)号：US20230094749A1

公开(公告)日：2023-03-30

申请号：US17894851

申请日：2022-08-24

Applicant: LG Display Co., Ltd.

Inventor： YongChan PARK ,  JuHong KIM

IPC: G06F3/041

Abstract: A touch display device includes a display cathode electrode, a first touch cathode electrode adjacent to and disposed in the same layer as the display cathode electrode, a first touch line coupled with a touch driving circuit, a first touch bridge coupled with the first touch line, a second touch cathode electrode adjacent to and disposed in the same layer as the display cathode electrode, a second touch line coupled with the touch driving circuit, and a second touch bridge coupled with the second touch line. The first touch cathode electrode is electrically separated from and the second touch cathode electrode is electrically shorted with the display cathode electrode. The first touch bridge is coupled with the first touch cathode electrode. The second touch bridge is separated from the second touch cathode electrode, and the second touch line and the second touch cathode electrode are separated from each other.

公开(公告)号：US20240152228A1

公开(公告)日：2024-05-09

申请号：US18500701

申请日：2023-11-02

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk LEE ,  JuHong KIM

IPC: G06F3/041

CPC classification number: G06F3/04164

Abstract: The present disclosure provides a touch display device comprising first and second subpixels included in adjacent first and second pixel areas in a column direction, first and second touch sensors respectively adjacent to the first and second pixel areas in a row direction, a first touch line electrically connected to the first and second touch sensors and extending in the column direction, a first sensing line extending in the column direction, a first sensing transistor configured to control an electrical connection between the first sensing line and the first touch sensor, a second sensing transistor configured to control electrical connection between the first sensing line and the second touch sensor, and a common touch bridge electrically connecting the first touch sensor and the second touch sensor to the first touch line. The touch display device can perform more accurate touch sensing by removing a ghost touch that may be caused by a temperature effect. In addition, the touch display device may reduce parasitic capacitance and load related to the touch sensor structure.

公开(公告)号：US20230217779A1

公开(公告)日：2023-07-06

申请号：US18068886

申请日：2022-12-20

Applicant: LG Display Co., Ltd.

Inventor： JuHong KIM ,  HwiDeuk LEE

IPC: H10K59/40 ,  H10K50/822 ,  G06F3/041 ,  G06F3/044

CPC classification number: H01L27/323 ,  H01L51/5225 ,  G06F3/04164 ,  G06F3/0412 ,  G06F3/0446 ,  H01L27/3276

Abstract: The present disclosure relates to a transparent touch display device including: a substrate including a pixel area, a first transmission area located on a first side of the pixel area, and a second transmission area located on a second side of the pixel area, a driving transistor disposed in the pixel area, an anode electrode disposed in the pixel area, located over the driving transistor, and electrically connected to a source electrode or a drain electrode of the driving transistor, an emission layer located on the anode electrode, a display cathode electrode located on the emission layer, a first touch cathode electrode disposed in the first transmission area and located on a first side of the display cathode electrode, a second touch cathode electrode disposed in the second transmission area and located on a second side of the display cathode electrode, a first touch line electrically connected to at least one of the first touch cathode electrode and the second touch cathode electrode, and a first upper touch shield disposed over the first touch line and overlapping at least a portion of the first touch line.

公开(公告)号：US20230214039A1

公开(公告)日：2023-07-06

申请号：US18068880

申请日：2022-12-20

Applicant: LG Display Co., Ltd.

Inventor： JuHong KIM ,  HwiDeuk LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/044

Abstract: The present disclosure relates to a transparent touch display device including: a substrate including a pixel area, a first transmission area located on a first side of the pixel area, and a second transmission area located on a second side of the pixel area; a display cathode electrode to which a base voltage for display driving is applied; a first touch cathode electrode located on a first side of the display cathode electrode and including a same material as the display cathode electrode; a second touch cathode electrode located on a second side of the display cathode electrode and including the same material as the display cathode electrode; a first touch bridge that runs across the pixel area and electrically connects the first touch cathode electrode and the second touch cathode electrode; a first touch line intersecting the first touch bridge and electrically connected to at least one of the first touch cathode electrode and the second touch cathode electrode; and a first upper touch shield disposed over the first touch line and overlapped with at least a portion of the first touch line, wherein the first upper touch shield has an equipotential with the first touch line.

公开(公告)号：US20220206610A1

公开(公告)日：2022-06-30

申请号：US17459575

申请日：2021-08-27

Applicant: LG DISPLAY CO., LTD.

Inventor： JuHong KIM ,  HwiDeuk LEE ,  Hyunsuk CHO

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch display device includes a shield electrode disposed between a touch electrode and a display electrode, by not disposing the touch electrode and the shield electrode on a part of an area overlapping with a data line, thus direct and indirect coupling by the data line can be reduced and a crosstalk by a coupling between a touch signal and a display signal can be reduced. Furthermore, in the case that the shield electrode is disposed on a layer where a connecting pattern connecting between the touch electrode and the touch line is disposed, by maintaining an arrangement of the shield electrode on some area where the data line is overlapped and the touch electrode isn't disposed, thus an effect of a coupling reduction can be provided while maintaining a noise blocking performance of the shield electrode stably.