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公开(公告)号：US20220276745A1
公开(公告)日：2022-09-01
申请号：US17745765
申请日：2022-05-16
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：US20190073074A1
公开(公告)日：2019-03-07
申请号：US16113598
申请日：2018-08-27
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , BuYeol LEE , JuHan KIM
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044 , G09G3/2092 , G09G3/3266 , G09G3/3674 , G09G2310/0286 , G09G2310/067 , G09G2310/08
Abstract: The present disclosure provides a touch display panel or a touch display device and a gate driving circuit included in the touch display panel or the touch display device. The gate driving circuit includes a shift register group outputting scan signals during a display driving period and a dummy shift register group outputting dummy signal during a touch driving period. The gate driving circuit transmits a signal output immediately before a display driving period before a touch driving period ends, through dummy shift registers during the touch driving period such that the signal is used for outputting a first scan signal in the next display driving period. Accordingly, it is possible to prevent output reduction of a scan signal at the boundary between the touch driving period and the display driving period and prevent defect in an image due to the output reduction.
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公开(公告)号：US20230214077A1
公开(公告)日：2023-07-06
申请号：US17988516
申请日：2022-11-16
Applicant: LG Display Co., Ltd.
Inventor： Jinseong KIM , JuHan KIM , Haewon LEE , MoonBae GEE , Hyowon KWON
IPC: G06F3/044
CPC classification number: G06F3/0446 , G06F3/0443 , G06F3/0448
Abstract: A display device according to an example embodiment of the present disclosure includes a touch pattern layer having a plurality of stretching patterns; and a touch electrode layer disposed on the touch pattern layer and having a plurality of touch electrodes, wherein each of the plurality of stretching patterns includes a plurality of unit patterns, wherein each of the plurality of touch electrodes includes a plurality of unit electrodes, wherein each of the plurality of unit patterns includes a first sub-unit pattern overlapping each of the plurality of unit electrode electrodes, and a second sub-unit pattern disposed inside the first sub-unit. Accordingly, laser lift off (LLO) process efficiency for the touch panel can be increased.
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公开(公告)号：US20200210011A1
公开(公告)日：2020-07-02
申请号：US16727341
申请日：2019-12-26
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：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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Patent Agency Ranking
公开(公告)号：US20250028407A1
公开(公告)日：2025-01-23
申请号：US18909698
申请日：2024-10-08
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
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：US20220066594A1
公开(公告)日：2022-03-03
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：US20210303095A1
公开(公告)日：2021-09-30
申请号：US17344883
申请日：2021-06-10
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：US20210247869A1
公开(公告)日：2021-08-12
申请号：US17245652
申请日：2021-04-30
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：US20170249040A1
公开(公告)日：2017-08-31
申请号：US15441723
申请日：2017-02-24
Applicant: LG DISPLAY CO., LTD.
Inventor： TaeWoo KIM , JuHan KIM , Kyungjae PARK
Abstract: A display device, a backlight unit, a guide panel, and a flexible printed circuit, are disclosed which include a conductive pattern on a part of an outer surface of a guide panel or a folding portion formed by folding a side end portion of the flexible printed circuit. The conductive pattern or the folding portion is electrically connected to an electrode located below the display device. A simple structure is provided in which a signal output from a signal input medium positioned above the guide panel is easily transmitted to an electrode located below the display device through the conductive pattern of the guide panel or the folding portion of the flexible printed circuit.
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