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公开(公告)号：US20230004251A1
公开(公告)日：2023-01-05
申请号：US17942805
申请日：2022-09-12
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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公开(公告)号：US20220221957A1
公开(公告)日：2022-07-14
申请号：US17712048
申请日：2022-04-01
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , JuHan KIM
Abstract: Embodiments of the present disclosure relate to a touch display device and, more particularly, to a touch display device including a touch panel that can reduce the number of signal lines and the number of touch channels and can prevent or reduce a ghost phenomenon in multi-touching. In particular, the touch display device includes a woven type touch panel in which touch electrodes are formed by disposing electrodes to be entangled and electrically connecting the entangled electrodes such that electrically disconnected points exist, thereby being able to reduce the number of signal lines and the number of touch channels and prevent or reduce a ghost phenomenon in multi-touching.
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公开(公告)号：US20210132733A1
公开(公告)日：2021-05-06
申请号：US17018620
申请日：2020-09-11
Applicant: LG Display Co., Ltd.
Inventor： Haewon LEE , JuHan KIM , Jinseong KIM
Abstract: The present disclosure relates to touch display device and display panel. Provided are a touch display device and a display panel able to improve touch sensing performance by reducing crosstalk occurring between data lines and touch lines. A shield pattern is disposed in an area in which the touch lines overlap the data lines. A shield signal is applied to the shield pattern through shield lines in an area in which the shield pattern does not overlap the touch lines or the data lines. Direct capacitance is not formed between the touch lines and the data lines.
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公开(公告)号：US20200210025A1
公开(公告)日：2020-07-02
申请号：US16720629
申请日：2019-12-19
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , JuHan KIM
Abstract: The present disclosure relates to a touch display device, a touch panel, a touch sensing circuit and a touch sensing method. In the touch display device, the touch panel, and the touch sensing circuit, and in the method of performing touch sensing therein, a structure in which a plurality of touch sensor groups is arranged is provided, and one of a self-capacitance touch sensing scheme and a mutual-capacitance touch sensing scheme is adaptively implemented according to the type and position of a touch event. Therefore, the number of signal lines and the number of touch channels may be reduced, and the ghost phenomenon can be reduced or be overcome when multiple touches occur.
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公开(公告)号：US20200097127A1
公开(公告)日：2020-03-26
申请号：US16561667
申请日：2019-09-05
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , JuHan KIM
Abstract: Embodiments of the present disclosure relate to a touch display device and, more particularly, to a touch display device including a touch panel that can reduce the number of signal lines and the number of touch channels and can prevent or reduce a ghost phenomenon in multi-touching. In particular, the touch display device includes a woven type touch panel in which touch electrodes are formed by disposing electrodes to be entangled and electrically connecting the entangled electrodes such that electrically disconnected points exist, thereby being able to reduce the number of signal lines and the number of touch channels and prevent or reduce a ghost phenomenon in multi-touching.
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Patent Agency Ranking
公开(公告)号：US20200004368A1
公开(公告)日：2020-01-02
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：US20180121002A1
公开(公告)日：2018-05-03
申请号：US15784466
申请日：2017-10-16
Applicant: LG Display Co., Ltd.
Inventor： JuHan KIM , CheolSe KIM
CPC classification number: G06F3/0414 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04111 , G09G3/3225 , G09G2310/08 , H01L27/323 , H01L51/5237 , H01L51/5253
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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18.发明申请公开(公告)号：US20170220183A1
公开(公告)日：2017-08-03
申请号：US15216656
申请日：2016-07-21
Applicant: LG Display Co., Ltd.
Inventor： SungChul KIM , JuHan KIM
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G06F2203/04107
Abstract: A driving circuit, a touch display device, and a method of driving the touch display device, in which, when a user touches a screen, not only can a touch point be sensed, but also a level of touch force with which the user presses the screen can also be efficiently sensed, in order to provide a range of functions. It is possible to provide a variety of functions that are not supported by related-art touch sensing technologies.
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公开(公告)号：US20240211062A1
公开(公告)日：2024-06-27
申请号：US18454604
申请日：2023-08-23
Applicant: LG Display Co., Ltd.
Inventor： Jinseong KIM , JuHan KIM , Haewon LEE , CheolSe KIM
IPC: G06F3/041 , G06F3/044 , H10K59/12 , H10K59/122 , H10K59/124 , H10K59/40
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0443 , H10K59/1201 , H10K59/122 , H10K59/124 , H10K59/40
Abstract: The present disclosure provide a display device and a display panel, the display panel including: a transistor disposed over a substrate; a first planarization layer and a second planarization layer disposed over the transistor; an anode electrode disposed in a light emitting area on the second planarization layer and electrically connected to the transistor through an anode contact hole; a touch buffer layer disposed to cover the anode electrode; a touch electrode including an overlap area overlapping a portion of the anode electrode in a non-light emitting area on the touch buffer layer; a touch line disposed under the touch electrode and electrically connected to the touch electrode through a touch contact hole; a bank covering the touch electrode and including an opening in which the light emitting area is placed; and an emission layer and a cathode electrode sequentially disposed on the anode electrode.
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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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