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11.发明授权公开(公告)号：US10908721B2
公开(公告)日：2021-02-02
申请号：US16455206
申请日：2019-06-27
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , JuHan Kim
IPC: G06F3/041
Abstract: A touch display panel and a touch display device. A shield electrode is disposed between a display electrode and touch electrodes, is driven using a signal corresponding to a signal applied to the touch electrodes. Display noise is blocked using the shield electrode, so that the sensitivity of touch sensing signals received from the touch electrodes are improved. In addition, due to the improved sensitivity of touch sensing signals, the performance of touch sensing based on a change in the self-capacitance of the touch electrodes is improved. Both a touch sensing function based on a change in the self-capacitance of the touch electrodes and a touch sensing function based on a change in the mutual capacitance of the touch electrodes are provided.
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公开(公告)号：US10860128B2
公开(公告)日：2020-12-08
申请号：US16448834
申请日：2019-06-21
Applicant: LG Display Co., Ltd.
Inventor： SeungMok Shin , CheolSe Kim , JuHan Kim , HoonBae Kim , HyunHo Park , Jinseong Kim , YongChan Park
Abstract: A touch display panel and device. A common electrode is provided between a display driving signal line and a touch line. The common electrode functions as a shielding pattern that prevents display noise of a touch sensing signal without increasing the number of masks used to form the touch display device. A touch load reducing layer is disposed in a region between the touch line and the common electrode, except for a region in which the common electrode and pixel electrodes overlap. This reduces the load of the touch line and improves touch sensing performance without having an adverse effect on display driving.
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公开(公告)号：US10402001B2
公开(公告)日：2019-09-03
申请号：US15784466
申请日：2017-10-16
Applicant: LG Display Co., Ltd.
Inventor： JuHan Kim , CheolSe Kim
IPC: G06F3/041 , G06F3/044 , H01L27/32 , H01L51/52 , G09G3/3225
Abstract: Disclosed is an electronic device having a force touch function, which has a thin thickness despite having the force touch function. The electronic device includes a substrate, first and second electrodes and a light emitting device layer including a light emitting layer provided on the substrate, and a touch electrode part on the second electrode. A distance between the second electrode and the touch electrode part is changeable according to a touch force applied to the touch electrode part.
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公开(公告)号：US11934601B2
公开(公告)日：2024-03-19
申请号：US17971362
申请日：2022-10-21
Applicant: LG Display Co., Ltd.
Inventor： Haewon Lee , Jinseong Kim , JuHan Kim
CPC classification number: G06F3/0412 , G06F3/0446 , G09G3/2092 , G06F2203/04111 , G09G2310/0267 , G09G2310/0275
Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.
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公开(公告)号：US11861091B2
公开(公告)日：2024-01-02
申请号：US17972448
申请日：2022-10-24
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , SungChul Kim , HoonBae Kim , SunYeop Kim , Jinseong Kim , JuHan Kim , Haewon Lee
IPC: G06F3/041 , G06F3/044 , H01L33/62 , H01L25/075
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0446 , H01L25/0753 , H01L33/62
Abstract: A display device includes a substrate including a plurality of sub pixels; a first touch electrode on the substrate and overlapping at least one subpixel from the plurality of sub pixels; a second touch electrode on the substrate and spaced apart from the first touch electrode and overlapping the at least one sub pixel; an insulating layer covering the first touch electrode and the second touch electrode; a plurality of charging transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a plurality of sensing transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a planarization layer covering the plurality of charging transistors and the plurality of sensing transistors; and a light emitting diode on the planarization layer.
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Patent Agency Ranking
公开(公告)号：US11803267B2
公开(公告)日：2023-10-31
申请号：US17990241
申请日：2022-11-18
Applicant: LG Display Co., Ltd.
Inventor： Jinseong Kim , YongChan Park , Haewon Lee , JuHan Kim
CPC classification number: G06F3/0412 , G06F3/047 , G06F3/0443 , G06F2203/04107
Abstract: In a touch display panel and a touch display device, a shielding pattern including the common electrode (COM) used as the touch electrode (TE) is disposed between a touch line (TL) and a data line (DL), and the touch line (TL) and the data line (DL) are arranged so as not to overlap each other in a boundary area between shielding patterns. The parasitic capacitance between the touch line (TL) and the data line (DL) can be reduced to improve the performance of touch sensing. In addition, the arrangement of the touch lines (TL) and data lines (DL) in the boundary area between shielding patterns is repeated at regular intervals to prevent an image abnormality.
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公开(公告)号：US11714504B2
公开(公告)日：2023-08-01
申请号：US17561270
申请日：2021-12-23
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , JuHan Kim , Jinseong Kim , Haewon Lee
CPC classification number: G06F3/0412 , G06F3/044 , G06F3/04164 , G06F3/04166 , G06F2203/04111
Abstract: A display device includes a first substrate, pixel substrates, first connection lines, second connection lines, and a touch electrode. The pixel substrates are disposed on the first substrate, and are spaced apart from each other along a first direction and along a second direction perpendicular to the first direction. The first connection lines connect pixel substrates disposed along the first direction. The second connection lines connect pixel substrates disposed along the second direction. The touch electrode is disposed between the pixel substrates in an area adjacent to areas in which the first connection lines and the second connection lines are disposed.
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公开(公告)号：US11507211B2
公开(公告)日：2022-11-22
申请号：US17522761
申请日：2021-11-09
Applicant: LG Display Co., Ltd.
Inventor： Haewon Lee , Jinseong Kim , JuHan Kim
Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.
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公开(公告)号：US11487396B2
公开(公告)日：2022-11-01
申请号：US17374896
申请日：2021-07-13
Applicant: LG DISPLAY CO., LTD.
Inventor： HoanSu Shim , JuHan Kim , Wonjoung Kim , Yeonock Ha
Abstract: A touch display device and a touch driving method thereof enable to effectively identify a ghost touch while reducing a number of touch lines and touch sensing units by differently disposing an arrangement of the touch electrodes to which the touch lines are connected for each touch block.
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公开(公告)号：US20220206663A1
公开(公告)日：2022-06-30
申请号：US17528940
申请日：2021-11-17
Applicant: LG Display Co., Ltd.
Inventor： Jinseong Kim , JuHan Kim , Haewon Lee
Abstract: A touch display device of the present disclosure may include a display panel on which a plurality of touch electrodes are electrically connected to a plurality of touch lines; a gate driving circuit for supplying scan signals to the display panel through a plurality of gate lines; a touch driving circuit for sensing a touch by detecting a touch signal from the plurality of touch electrodes and supplying a common voltage to the touch electrodes through the touch lines; a common voltage feedback line electrically connected to the plurality of touch lines or disposed to overlap with the plurality of gate lines in a non-display area of the display panel; and a common voltage compensation circuit for supplying a compensated common voltage based on a distortion in the common voltage.
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