Welding structure at tail of touch control film

Abstract

The invention discloses a welding structure at a tail of a touch control film. The welding structure comprises a touch control film and a flexible circuit board, wherein a plurality of fine wire sensors are distributed on the tail of the touch control film; an insulation welding disc is connected with the back surface of the flexible circuit board; and the fine wire sensors are connected to the insulation welding disc. The welding structure effectively avoids deformation of the touch control film due to high temperature during tin soldering; in addition, the flexible circuit board is directly adhered to the tail part of the touch control film; no objects are required to be adhered; production procedures are decreased; the production efficiency is improved; for the touch control film with the long side tail, the size of a packaging barrel of the touch control film is also greatly reduced; the cost of packaging materials and transportation cost are lowered; and the production cost is saved.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a welding structure at the tail flick of a touch film. Background technique [0002] Projected capacitive touch film is a kind of sensing film mainly packaged with fine wires. It integrates the advantages of precise sensing positioning, flexibility and high transparency. It is used for precise touch positioning of touch screens above 12 inches, and is also used in precise Interactive projection. [0003] Projected capacitive technology is a kind of horizontal and vertical electrode arrays made on the surface of glass or transparent film. These horizontal and vertical electrode capacitance changes are used to detect finger touches. According to the difference in capacitance generation, it is divided into two types: Types of: [0004] Self-capacitance touch film is made of transparent conductive material on the surface of glass or transparent film to form horizontal and vertical electr...

AI Technical Summary

Problems solved by technology

[0007] However, in the existing technology, soldering of the touch film is prone to false welding, and the base of the pad cannot be bent, which affects the overall bending performance of the touch film. In addition, the pad is long and strip-shaped and cannot be bent, resulting in a flicking of the long side of the package. When the film is used, the volume of the packaging barrel required is huge, and the packaging material and transportation costs must be doubled, which increases the production cost; in addition, the soldering is mainly manual operation, and the accuracy is difficult to guarantee, resulting in a high defective rate and high temperature. It is easy to cause deformation of the film during soldering, and if an additional process is added in the production process of the touch film --- paste the insulating strip, and because the place where the insulating strip is pasted cannot naturally bend with the touch film, it may cause the user Many inconveniences when using the touch film

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