Metal grid structure, touch screen and touch display screen

A metal grid, touch screen technology, applied in the field of touch screen and touch display screen, metal grid structure, can solve the problems of metal lead production process capacity limitation, poor, increased touch driver IC design, etc. To achieve the effect of narrow border effect

CN111488069APending Publication Date: 2020-08-04SHENZHEN LAIBAO HI TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-08-04

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Abstract

The invention relates to the technical field of touch control, and provides a metal grid structure, a touch screen and a touch display screen. The metal grid structure comprises metal grid lines formed by intersecting a plurality of metal lines, the metal grid lines are separated by fracture lines one by one to form touch electrode channels and Dummy blocks, the touch electrode channels and the Dummy blocks are arranged at intervals, the touch electrode channels are connected with driving equipment, and the Dummy blocks are not connected with the driving equipment and only have an optical matching effect. The touch electrode channel comprises an edge sub-touch electrode and an in-plane sub-touch electrode. The outer side portions of the edge sub-touch electrodes are covered with BM, the line width of metal grid lines, covered with the BM, of the edge sub-touch electrodes is larger than the line width of metal grid lines of the in-plane sub-touch electrodes, and the width of the edge sub-touch electrodes is smaller than that of the in-plane sub-touch electrodes. Due to the design effect of the metal grid lines, the edge sub-touch electrodes and the in-plane sub-touch electrodes cangenerate similar electrical properties in the aspects of resistance and capacitance, and the basic touch performance cannot be affected.
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Description

technical field

[0001] The present invention relates to the field of touch technology, in particular to the field of touch display technology, in particular to a metal grid structure, a touch screen and a touch screen. Background technique

[0002] At present, the touch display technology industry pays more and more attention to the design of the product frame, and strives to compress the frame (ie black frame) of the touch screen as much as possible to obtain a more market-competitive product.

[0003] Such as figure 1 As shown, the current touch display screen includes a touch module 1 and a display module 2 bonded through an adhesive layer (not shown), and the size of the touch module 1 is slightly larger than that of the display module 2. size, the edge of the touch module 1 is covered by black shielding material 3 (BM) (mainly to shield the edge metal leads 4), so that the touch module is divided into a display area and a non-display area, and the non-display area is c...

Examples

Embodiment Construction

[0031] In order to illustrate the touch screen provided by the present invention and the manufacturing method thereof, a detailed description will be given below in conjunction with the accompanying drawings and the written description of the embodiments.

[0032] The invention provides a metal grid structure and a touch screen adopting the metal grid structure.

[0033] In a specific embodiment, the metal grid structure can be designed as a first metal grid structure 10 or a second metal grid structure 20 . A touch screen is formed by stacking the first metal grid structure 10 and the second metal grid structure 20 .

[0034] Such as figure 2 As shown, the first metal grid structure 10 provided by the embodiment of the present invention includes: metal grid lines formed by crossing metal wires, and the metal grid lines are separated by break lines 110 to form a spacer The first touch electrode channel of the row and the first Dummy block 111, the first touch electrode chan...