Flexible and Stretchable Electronics

Abstract

The invention provides a flexible stretchable electronic device. The electronic device comprises a plurality of flexible circuit boards and at least one hinge, wherein every two flexible circuit boards are rotatably connected through a hinge, the hinge comprises a positive electrode connecting part and a negative electrode connecting part which are insulated from each other, the positive electrodeconnecting part is electrically connected with positive electrodes of the two flexible circuit boards, the negative electrode connecting part is electrically connected with negative electrodes of thetwo flexible circuit boards, the hinge comprises two parts which can relatively rotate around the rotating axis and are fixed to the two flexible circuit boards and insulated from each other, when the two parts relatively rotate, the positive electrode connecting part is always connected with the positive electrodes of the two flexible circuit boards, and the negative electrode connecting part isalways connected with the negative electrodes of the two flexible circuit boards. The electronic device is advantaged in that the flexible circuit boards and the conductive hinges are adopted, so that the flexible stretchable electronic device has both the flexible deformation function and the stretchable function, is suitable for surfaces of objects of different sizes and shapes, cannot generatestress concentration in a circuit, greatly improves stability of the circuit and achieves reliable tensile deformation.

Description

technical field [0001] The invention relates to the technical field of flexible electronics, and in particular to a flexible and stretchable electronic device. Background technique [0002] Flexible electronics technology is an emerging electronic technology that fabricates functional organic / inorganic material electronic devices on flexible polymer materials or thin metal substrates. Compared with traditional electronic technology, flexible electronic technology brings greater flexibility. Electronic devices manufactured by flexible electronic technology can adapt to different working environments to a certain extent and meet the deformation requirements of equipment. The corresponding technical requirements also restrict the development of flexible electronic technology. First of all, the stretchability and bendability of flexible electronic technology without damaging its own electronic properties pose new challenges and requirements for the materials used to make circui...

AI Technical Summary

Problems solved by technology

However, flexible circuit boards are not stretchable, and it is difficult to realize stretchable flexible electronic devices

[0004] At present, most flexible and stretchable electronic devices adopt the scheme of integrating curved wires or island bridge structures on the flexible circuit board to achieve stretching deformation, but at the same time, stress concentration is generated, which easily leads to circuit damage or detachment from the adhesive surface.

At the same time, flexible and stretchable electronic devices are basically designed and manufactured in an integrated manner, without a unified connection interface, it is difficult to integrate and use each other

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