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公开(公告)号：US20190079623A1
公开(公告)日：2019-03-14
申请号：US16124998
申请日：2018-09-07
Applicant: LG Display Co., Ltd.
Inventor： HoonBae KIM , CheolSe KIM , SeungMok SHIN , JuHan KIM , YongChan PARK , HyunHo PARK
Abstract: Embodiments disclosed herein relate to a touch display panel and a touch display device. By arranging a shielding structure, which is connected to a touch electrode in a region where a touch line and a data line overlap each other or is applied with a shielding signal corresponding to a touch driving signal from an outside circuit, between the touch line and the data line, it is possible to prevent direct capacitance from being formed between the touch line and the data line, and to prevent the capacitance formed due to the data line from causing noise on a touch sensing signal. In addition, by arranging a touch load reduction layer between the shielding structure and the touch line, it is also possible to reduce the capacitance between the touch line and the data line arranged in the horizontal direction, thereby improving touch sensing performance.
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12.发明申请DRIVING CIRCUIT, TOUCH DISPLAY DEVICE, AND METHOD FOR DRIVING THE TOUCH DISPLAY DEVICE 审中-公开驱动电路，触摸显示装置和驱动触摸显示装置的方法公开(公告)号：US20170068384A1
公开(公告)日：2017-03-09
申请号：US15258915
申请日：2016-09-07
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , BuYeol LEE , YongChan PARK , Suyun JU
Abstract: The present embodiments relate to a touch technology and, more particularly, to a touch display device, which includes multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap existing between the multiple first electrodes and the at least one second electrode, a method for driving the same, and a driving circuit for driving the multiple first electrodes and the at least one second electrode. The present embodiments, as described above, make it possible to sense not only a touch position, but also a touch force, with which the user presses the screen during a touch.
Abstract translation: 本实施例涉及触摸技术，更具体地，涉及一种触摸显示装置，其包括嵌入显示面板中的多个第一电极，位于显示面板外部的至少一个第二电极和存在于显示面板之间的触摸力感测间隙 多个第一电极和至少一个第二电极，其驱动方法和用于驱动多个第一电极和至少一个第二电极的驱动电路。 如上所述的本实施例使得不仅可以感测触摸位置，而且还可以感测用户在触摸期间按压屏幕的触摸力。
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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.
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公开(公告)号：US20230085436A1
公开(公告)日：2023-03-16
申请号：US17990241
申请日：2022-11-18
Applicant: LG Display Co., Ltd.
Inventor： Jinseong KIM , YongChan PARK , Haewon LEE , JuHan KIM
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：US20210026513A1
公开(公告)日：2021-01-28
申请号：US16913384
申请日：2020-06-26
Applicant: LG Display Co., Ltd.
Inventor： HwiDeuk LEE , Yangsik LEE , YongChan PARK
Abstract: A touch display device has 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 can improve touch sensitivity by preventing the formation of parasitic capacitance caused by the touch routing lines.
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Patent Agency Ranking
公开(公告)号：US20210026477A1
公开(公告)日：2021-01-28
申请号：US16922390
申请日：2020-07-07
Applicant: LG DISPLAY CO., LTD.
Inventor： HwiDeuk LEE , Yangsik LEE , YongChan PARK , Sungsu HAN
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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17.发明申请公开(公告)号：US20200264726A1
公开(公告)日：2020-08-20
申请号：US16872089
申请日：2020-05-11
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , BuYeol LEE , YongChan PARK , Suyun JU
Abstract: The present embodiments relate to a touch technology and, more particularly, to a touch display device, which includes multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap existing between the multiple first electrodes and the at least one second electrode, a method for driving the same, and a driving circuit for driving the multiple first electrodes and the at least one second electrode. The present embodiments, as described above, make it possible to sense not only a touch position, but also a touch force, with which the user presses the screen during a touch.
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公开(公告)号：US20200004365A1
公开(公告)日：2020-01-02
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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19.发明申请公开(公告)号：US20170300146A1
公开(公告)日：2017-10-19
申请号：US15480301
申请日：2017-04-05
Applicant: LG Display Co., Ltd.
Inventor： Sungsu HAN , YongChan PARK , SungChul KIM , Jinseong KIM
CPC classification number: G06F3/044 , G06F3/0414 , G06F2203/04105 , G06F2203/04112 , G09G3/20 , G09G3/2092 , G09G2300/0426 , G09G2310/08
Abstract: The present embodiments relate to a driving circuit and a touch display apparatus for sensing a user's touch position and touch force with respect to a display panel, and further relate to a driving method thereof. The touch display apparatus may include a plurality of first electrodes that are configured to be embedded in a display panel, and a second electrode that is configured to be positioned outside the display panel. The touch display apparatus may read a force sensing signal from the second electrode through a signal detecting unit that is electrically connected to the second electrode. Therefore, it is possible to sense a touch force without separating a force sensing signal from a signal received from the first electrode, and to sense a user's touch force through the driving of the second electrode regardless of the driving mode of the first electrode.
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公开(公告)号：US20170192579A1
公开(公告)日：2017-07-06
申请号：US15391630
申请日：2016-12-27
Applicant: LG Display Co., Ltd.
Inventor： JuHan KIM , YongChan PARK , JinSeong KIM
CPC classification number: G06F3/0414 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04102 , G06F2203/04106
Abstract: Embodiments of the present invention relate to a display device having a force sensor structure and, more specifically, to a display device having a force sensor structure which, when a user's touch occurs, senses not only touch coordinates but also the user's touch force for pressing a screen, in order to provide various functions in various forms.
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