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Patent Agency Ranking
公开(公告)号：US11023059B2
公开(公告)日：2021-06-01
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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公开(公告)号：US11467685B2
公开(公告)日：2022-10-11
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：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：US11921944B2
公开(公告)日：2024-03-05
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
CPC classification number: G06F3/0412 , G06F3/04164 , G06F3/0443 , G06F3/047 , G09G3/2096 , G02F1/13338 , G02F1/13606 , G02F2201/123 , G06F2203/04107 , G09G2354/00
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：US20230367410A1
公开(公告)日：2023-11-16
申请号：US18195144
申请日：2023-05-09
Applicant: LG Display Co., Ltd.
Inventor： Byoungwoo Kim , JoonHo Lee , HyunHo Park , Sunghoon Paik
IPC: G06F3/041
CPC classification number: G06F3/0412 , G06F2203/04103
Abstract: A touch display device, a display panel, and a gate driving circuit are disclosed. A touch display device comprises a display panel having subpixels, a gate driving circuit including gate stages for applying a scan signal to the display panel through gate lines and dummy stages selectively disposed between the gate stages, and a touch driving circuit applying a touch driving signal to the display panel through touch lines and receiving a touch sensing signal generated by the display panel, wherein the dummy stages are divided into two or more dummy stage groups, and wherein a group control signal line for applying a group control signal based on dummy stage group and an individual control signal line for applying an individual control signal to each dummy stage included in the dummy stage group are disposed along a bezel area.
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