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

IPC: G06F3/041 ,  G06F3/047 ,  G09G3/20 ,  G06F3/044

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.

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

IPC: G06F3/041 ,  G06F3/047 ,  G09G3/20 ,  G06F3/044

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.

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

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G09G3/20

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.

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

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

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.