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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.
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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
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.
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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
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.
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公开(公告)号：US20210263608A1
公开(公告)日：2021-08-26
申请号：US17316418
申请日：2021-05-10
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , Jungho JO
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.
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Patent Agency Ranking
公开(公告)号：US20210173543A1
公开(公告)日：2021-06-10
申请号：US17098997
申请日：2020-11-16
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE
Abstract: A display device, and a method of manufacturing the same, includes an encapsulation layer on a display area and a routing area, a touch insulation film on the encapsulation layer and including a plurality of grooves in a first area of the routing area, the routing area including the first area overlapping a folding area of a substrate and a second area not overlapping the folding area, a touch cover on the touch insulation film, a plurality of touch electrodes, at least part of which is disposed at a position overlapping an active area between the encapsulation layer and the touch insulation film or between the touch insulation film and the touch cover, and a plurality of touch signal lines in the routing area and respectively in the plurality of grooves or between the plurality of grooves in the first area, extending in the second direction.
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公开(公告)号：US20210157432A1
公开(公告)日：2021-05-27
申请号：US17064349
申请日：2020-10-06
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , YongChan PARK
Abstract: Embodiments of the disclosure relate to touch display devices. The difference in parasitic capacitance due to the difference in length between the touch routing lines may be reduced by separately arranging touch electrode lines in the active area and connecting the touch routing line connected with each portion of a touch electrode line with the touch routing line connected with each portion of another touch electrode line. Therefore, it is possible to reduce loads and the differences in touch sensing depending on the connection structure and position of the touch routing line by driving the touch electrode line in a double-routing structure. By so doing, the performance of touch sensing may be enhanced.
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公开(公告)号：US20210026478A1
公开(公告)日：2021-01-28
申请号：US16922409
申请日：2020-07-07
Applicant: LG DISPLAY CO., LTD.
Inventor： HwiDeuk LEE , Yangsik LEE
Abstract: Embodiments of the present disclosure relate to a touch display device, and more particularly, to a touch display device which can have a small bezel size even when touch routing lines connecting a touch sensor to a touch sensing circuit are disposed in a non-display area and which can improve touch sensitivity by preventing or minimizing the formation of parasitic capacitance that can be caused by the touch routing lines.
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公开(公告)号：US20200167038A1
公开(公告)日：2020-05-28
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: G06F3/044
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.
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公开(公告)号：US20200026408A1
公开(公告)日：2020-01-23
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.
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