A method and device for conformal inkjet printing of complex curved surface circuits

Abstract

The invention belongs to the field of electrohydrodynamic jet printing, and discloses a conformal jet printing method and equipment for complex curved surface circuits. The equipment includes a spherical motor module, a translation module and a conformal printing module, and the translation module drives the spherical motor module to move in the X and Y axis directions in the plane; the conformal printing module includes a nozzle part and an electrical signal part , the nozzle part moves up and down to realize the degree of freedom in the Z-axis direction, the electrical signal part applies voltage to the ink in the ink cartridge and the electrode ring; the spherical motor module rotates around the X, Y and Z directions to realize the six-degree-of-freedom movement of the object to be printed, and the curved surface The substrate is grounded so that the potential of the object to be printed is zero, and the voltage applied to the ink is higher than the voltage applied to the electrode ring, so that a gradient potential difference is formed on the ink, the electrode ring and the object to be printed. Through the invention, the conformal patterned electrojet printing process of complex curved surfaces is realized, the application range of the electrojet printing process is improved, the manufacturing cost is reduced, and the jet printing precision is improved.

Description

technical field [0001] The invention belongs to the field of electrohydrodynamic inkjet printing, and more specifically relates to a conformal inkjet printing equipment for complex curved surface circuits. Background technique [0002] Flexible curved surface electronics technology is one of the most exciting and promising information technologies today. It is an emerging electronic technology built on bendable substrates (plastic, metal sheet, glass, etc.), and curved surface electronics involves new materials and manufacturing technologies. , has a wide range of applications in the fields of aerospace, flexible display, flexible sensing and flexible energy. The relatively mature application fields at this stage are civilian flexible display and flexible sensing fields, such as touch screens, curved surface wearable devices and other curved surface electronic products. At the same time, the development and investment proportion of military curved surface electronics techno...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a conformal inkjet printing equipment with complex curved surface circuit, through the setting of spherical motor, translation module and nozzle, the movement of six degrees of freedom is realized, and at the same time, the The setting of ink, electrode ring and curved substrate forms a potential difference gradient, the purpose of which is to ensure a stable printing electric field, thereby solving the technical problems of difficult processing of complex curved surfaces and poor printing accuracy and effect

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