Double-sided flexible printed circuit board with ACP conductive adhesive being printed thereon

Abstract

The invention discloses a double-sided flexible printed circuit board with ACP conductive adhesive being printed thereon, which comprises a base plate and circuits distributed on the base plate. The double-sided flexible printed circuit board is characterized in that the base plate is a double-sided plate; the base plate adopts a layer structure which is formed by copper foil, AD adhesive, a PI film or mylar film and AD adhesive on an upper layer and copper foil on a lower layer; circuit patterns are formed on the copper foil on the upper layer and the lower layer; a guide hole used for communicating the upper surface and the lower surface is arranged between the copper foil on the upper layer and the copper foil of the lower layer; an insulating layer with a welding spot exposed covers the surface of the copper foil on the upper layer of the base plate; and guide conducting adhesive containing conducting particles is printed on the circuit connected with one end of a screen. The double-sided flexible printed circuit board can be freely bent, folded, wound, moved and stretched in the three dimensional space randomly, the heat dispersion is good, the flexible printed circuit board can be utilized to reduce the volume, and the light weight, the miniaturization and the slimming can be realized, thereby achieving the advantage of connection integration of element devices and conducting wires.

Description

technical field [0001] The invention relates to a flexible circuit board, in particular to a double-sided flexible printed circuit board printed with ACP conductive glue suitable for the touch screen of a mobile phone. Background technique [0002] As we all know, with the development of science and technology, applied electronic products are gradually developing in the direction of lightness and multi-function, especially with the development of communication technology, mobile phones have become an indispensable part of people's daily life, and people's personalization of mobile phones Requirements continued to increase, and mobile phones with touch screens followed. [0003] The traditional PCB board is a rigid board. First of all, the characteristic of the PCB itself is that the rigid board cannot be bent, so it will inevitably occupy a certain amount of space and increase the weight of the product. Two disadvantages have restricted the product from becoming thinner and ...

AI Technical Summary

Problems solved by technology

[0003] The traditional PCB board is a rigid board. First of all, the characteristic of the PCB itself is that the rigid board cannot be bent, so it will inevitably occupy a certain amount of space and increase the weight of the product. Two disadvantages have restricted the product from becoming thinner and smaller. development strategy

From the perspective of technology, the mobile phone touch screen adopts the technology of pressing AG to realize the connection. If the hard board is too thick, it cannot be flattened after pressing, and the steps generated are large, and the AG wire will break.

[0004] In addition, ordinary flexible circuit boards, because the products are too delicate after division, are not easy to work in the process of gluing and flattening, and the gluing is uneven, resulting in adverse consequences such as steps and detachment after AG pressing There are potential safety hazards in the use of products

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