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Touch structure and touch display device

A touch display device and touch technology, which are applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of abnormal touch signals, short circuits between virtual electrodes and sensing electrodes, and enlargement of the area of ​​sensing electrodes. Improve antistatic ability and improve the effect of large capacitance effect

Active Publication Date: 2022-04-15
INTERFACE TECH CHENGDU CO LTD +2
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Problems solved by technology

[0003] However, when there is an electrostatic discharge (Electrostatic Discharge, ESD) phenomenon, a huge discharge current will be formed instantaneously between the adjacent dummy electrodes and the sensing electrodes, which will easily cause a short circuit between the dummy electrodes and the sensing electrodes, resulting in equivalent The area of ​​the sensing electrode becomes larger, and the touch signal is abnormal

Method used

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  • Touch structure and touch display device
  • Touch structure and touch display device
  • Touch structure and touch display device

Examples

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Embodiment Construction

[0027] Such as figure 1 As shown, the touch display device 100 defines a display area 101 and a frame area 102 surrounding the display area 101 . The touch display device 100 can be a mobile phone, a tablet computer, a smart wearable device (such as a smart watch) and the like.

[0028] Such as figure 2 shown, which is figure 1 A sectional view taken along section line II-II. The touch display device 100 includes a touch panel 10 and a display panel 20 located on one side of the touch panel 10 . The touch panel 10 includes a substrate 13 , a touch structure 12 disposed on the surface of the substrate 13 , and a cover plate 11 located on a side of the touch structure 12 away from the substrate 13 . The display panel 20 is located on a side of the substrate 13 away from the cover 11 . The display panel 20 , the substrate 13 and the touch structure 12 are disposed corresponding to the display area 101 .

[0029] In this embodiment, the touch display device 100 only include...

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Abstract

A touch control structure, which includes: a sensing electrode, used to realize a touch sensing operation; a first dummy electrode, adjacent to the sensing electrode and provided with an insulating interval; and a second dummy electrode, located away from the first dummy electrode One side of the sensing electrode is insulated from the first dummy electrode, and the area of ​​the first dummy electrode is smaller than the area of ​​the second dummy electrode; wherein, the sensing electrode, the first dummy electrode and the second dummy electrode are made of the same conductive layer Formed, the conductive layer includes a grid formed by a plurality of metal wires interlaced with each other, some metal wires are provided with breakpoints, and the gaps between the sensing electrodes and the first dummy electrodes, and between the first dummy electrodes and the second dummy electrodes are formed through the breakpoints. Insulation interval. A touch display device using the above touch structure is also provided.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch structure and a touch display device. Background technique [0002] Generally, the touch control structure includes a plurality of sensing electrodes. For the capacitive touch structure, the area of ​​the sensing electrodes will affect the corresponding capacitance value. When the material of the sensing electrode is metal mesh, in order to consider the overall visual effect and avoid too obvious sensing electrodes or moiré interference during lamination, there will be a gap between adjacent sensing electrodes. A part of the metal grid pattern is reserved as a dummy electrode. In this way, not only can the overall visual effect be maintained, but also the capacitance signal can be slightly increased to improve the linearity. [0003] However, when there is an electrostatic discharge (Electrostatic Discharge, ESD) phenomenon, a huge discharge current will be forme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
Inventor 陈彦华侯敦砚曾宜雯张国书
Owner INTERFACE TECH CHENGDU CO LTD
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