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公开(公告)号：US20230031502A1
公开(公告)日：2023-02-02
申请号：US17964228
申请日：2022-10-12
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , Sungsu HAN
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.
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公开(公告)号：US20220155934A1
公开(公告)日：2022-05-19
申请号：US17590698
申请日：2022-02-01
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：US20220004282A1
公开(公告)日：2022-01-06
申请号：US17306447
申请日：2021-05-03
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , Sungsu HAN
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.
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公开(公告)号：US20240160313A1
公开(公告)日：2024-05-16
申请号：US18500788
申请日：2023-11-02
Applicant: LG Display Co., Ltd.
Inventor： Sungsu HAN , SangHyuck BAE , HwiDeuk LEE , Hyunsuk CHO
CPC classification number: G06F3/04164 , G06F3/0412 , G06F3/041662 , G06F3/0448 , G09G3/32 , H01L25/0753 , H01L25/167 , H01L33/405 , G06F2203/04104 , G09G2310/0267 , G09G2310/08
Abstract: The present disclosure provides a touch sensor embedded light emitting diode display device and a touch display panel. The device includes a substrate, a light emitting diode (LED) disposed over the substrate. The LED includes a first electrode and a second electrode. The device includes a pixel electrode electrically connected to the first electrode and a common electrode electrically connected to the second electrode. The device includes a driving transistor disposed over the substrate. The transistor includes an active layer, a source electrode, a drain electrode, and a gate electrode. The device includes a relay electrode electrically connecting the source electrode or drain electrode to the pixel electrode. The device includes a first touch sensor electrode disposed spaced apart from the light emitting diode and including the same conductive material as the pixel electrode.
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公开(公告)号：US20230172015A1
公开(公告)日：2023-06-01
申请号：US17957771
申请日：2022-09-30
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE
CPC classification number: H01L27/3276 , G06F3/0412 , G06F3/0446 , G06F3/0418 , H01L27/323 , G06F2203/04107
Abstract: A touch display device can include a touch electrode implemented using a material and disposed on a transmissive area of a subpixel. The touch electrode can be disposed easily in a display panel which a transmittance is high. Furthermore, a short circuit prevention electrode can be disposed between a second electrode of a light-emitting element and the touch electrode to reduce a defect occurrence of the touch electrode in a process, and various types of touch sensing function can be provided or a performance of a touch sensing can be improved by using the short circuit prevention electrode as an electrode performing a certain function.
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Patent Agency Ranking
公开(公告)号：US20220206651A1
公开(公告)日：2022-06-30
申请号：US17494596
申请日：2021-10-05
Applicant: LG Display Co., Ltd.
Inventor： YongChan PARK , HwiDeuk LEE , Yangsik LEE , Hyunsuk CHO
IPC: G06F3/041
Abstract: Embodiments of the present disclosure are related to a touch display device, as a plurality of first line parts disposed on a first sensor layer and a plurality of second line parts disposed on a second sensor layer are alternated to make a touch line, at least a portion of different touch lines can be disposed to be overlapped each other, thus a plurality of touch lines can be disposed while reducing or minimizing a reduction of an aperture ratio or a transmittance of a subpixel due to an arrangement of the touch line. Accordingly, a touch sensitivity can be enhanced by further disposing touch electrodes, or the touch display device having a large area with many channels can be implemented easily by further disposing touch lines.
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公开(公告)号：US20200167037A1
公开(公告)日：2020-05-28
申请号：US16525488
申请日：2019-07-29
Applicant: LG Display Co., Ltd.
Inventor： HwiDeuk LEE , Yangsik LEE , Jaeseung KIM
Abstract: Example embodiments of the present disclosure relate to a touch display device. In one example, a touch display device includes a substrate including an active area in which multiple subpixels are arranged and a nonactive area positioned outside the active area; wherein each of the multiple subpixels includes a first electrode, an organic light emitting layer and a second electrode on the organic light emitting layer; an encapsulation layer arranged on the second electrode; a plurality of touch electrodes and a plurality of touch routing wires arranged on the encapsulation layer; a touch sensing circuit configured to drive the plurality of touch electrodes through the plurality of touch routing wires; multiple connection patterns arranged on the encapsulation layer in the active area so as to electrically connect at least a portion of the plurality of touch electrodes to each other; multiple first compensation patterns arranged in the nonactive area and electrically connected to the plurality of touch routing wires; and multiple second compensation patterns arranged on the encapsulation layer corresponding to the multiple first compensation patterns.
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公开(公告)号：US20200026383A1
公开(公告)日：2020-01-23
申请号：US16505057
申请日：2019-07-08
Applicant: LG DISPLAY CO., LTD.
Inventor： KwangJo HWANG , HwiDeuk LEE , Yangsik LEE
Abstract: Discussed is a touch display device having a touch circuit that includes an operational amplifier having a first input terminal for inputting a reference voltage, a second input terminal connected to a sensing target touch electrode, and an output terminal for outputting an output voltage, and wherein a common voltage applied to a common electrode and a reference voltage inputted to the first input terminal of the operational amplifier are synchronized with each other.
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公开(公告)号：US20200026376A1
公开(公告)日：2020-01-23
申请号：US16507622
申请日：2019-07-10
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , Jaeseung KIM
Abstract: A display device includes a display panel; a touch sensor sensing a capacitance of a plurality of nodes corresponding to a plurality of touch points on the display panel, wherein plurality of nodes includes a center node and a peripheral node surrounding the center node; a touch controller sensing a touch by detecting a capacitance change of the center node and the peripheral node, wherein the capacitance change of the center node is greater than the peripheral node; and a conductive layer disposed over the touch sensor that increases the capacitance change of the peripheral node.
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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.
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