Touch sensing module, touch display device and manufacturing method thereof

Abstract

The invention relates to a touch sensing module, a touch display device and a manufacturing method thereof. The touch sensing module comprises a cover plate, a touch sensing module, a display module, an insulating layer, a first connecting layer and a second connecting layer, the insulating layer is arranged at the position from the peripheral edge of the touch sensing module to the edge of a metal grid arranged on the touch sensing module to cover the edges of a metal circuit, a grounding circuit and a metal grid arranged on the touch sensing module, the first connecting layer is arranged between the cover plate and the touch sensing module, the second connecting layer is arranged between the touch sensing module and the display module, at least one hollow-out area is arranged at the position, overlapped with the second connecting layer, of the insulating layer, the hollowed-out area exposes part of the metal circuit, the second connecting layer is filled in the hollowed-out area, and the metal circuit exposed out of the hollowed-out area firstly reacts with foreign matters, so that the aim of preventing the foreign matters from reacting with the metal grid is fulfilled.

Description

technical field [0001] The present invention relates to a touch sensing module, a touch display device and a manufacturing method thereof, especially to a device capable of preventing the metal mesh of the touch display device from being polluted and damaged by foreign matter, wherein the prevention of foreign matter contamination is at least preventing the metal mesh from being damaged. Lattice reacts with sulfur. Background technique [0002] The actual size and shape of various mobile devices vary, but lightness, thinness, and fashion are still the keynotes of their design. The average device thickness of mobile devices such as smartphones and tablets… is gradually decreasing. The reason is that the technical development of various components is also designed in the direction of miniaturization, such as: semiconductors, electronic packaging, memory, communication components, display modules and other product segments to reduce the size of products, so that industrial des...

AI Technical Summary

Problems solved by technology

[0006] However, when the metal grid is used as the sensing circuit of the touch module, after the product is manufactured, the metal grid is often contaminated by foreign matter, and the damage cannot be used. The reason is that, please refer to figure 1 As shown, the edge of the substrate 100 of the touch sensing module 10 of the touch display device is usually provided with an insulating layer 102 to protect the exposed circuit (such as: metal) that is not covered by the connection layer 12 (such as: optical glue). metal wires 106 around the mesh 104), but the interface between the touch sensing module 10 and the connection layer 12 will infiltrate foreign matter into the position of the metal mesh (such as figure 1 The path shown by the dotted arrow), so that the metal grid 104 is polluted by foreign matter, resulting in abnormal resistance value

[0007] Taking silver as a conductive material for metal grids, silver itself is prone to oxidation or vulcanization reactions, which will change the surface resistance of the metal grid, or even form an open circuit, resulting in electrical failure and failure to touch normally. Therefore, it is necessary to improve this problem, reduce the chance of the metal grid being polluted by foreign matter, so that the metal grid can maintain the electrical properties (resistance value) of normal operation

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