A multi-error compensation positioning control method and system for jet printing ink droplets

Abstract

The invention belongs to related technical field of ink-jet printing and discloses a spray printing ink droplet multi-error compensating, positioning and controlling method and system. The method comprises the following steps: 1, carrying out test printing to obtain the ink droplet flying positioning error, the sprayer positioning error and the base plate positioning error; 2, before formal printing, carrying out feedforward control on base plate motion according to the obtained ink droplet flying positioning error, the sprayer positioning error and the base plate positioning error, and then carrying out formal printing; and 3, carrying out real-time detection to obtain the ink droplet falling point positioning error, and carrying out online feedback control on the base plate motion according to the obtained ink droplet falling point positioning error. According to the method, through measuring and compensating the collected multiple errors during the jet printing process, the ink droplet positioning error is reduced, so that the method is particularly suitable for high-precision industrial production and application occasions of high-resolution displayers and flexible electronics.

Description

technical field [0001] The invention belongs to the technical field related to inkjet printing, and more specifically, relates to a multi-error compensation and positioning control method and system for inkjet printing ink droplets. Background technique [0002] Inkjet printing technology is an emerging technology of printing and manufacturing. In the manufacture of display screens, thin-film solar cells, flexible sensors, etc., compared with traditional evaporation and other technologies, inkjet printing technology has high material utilization rate, printing resolution The characteristics of high efficiency, simple process, large scale, low cost and suitable for mass production have attracted extensive attention from research institutions and related manufacturers. With the continuous development of inkjet printing technology, various research institutions and related manufacturers are preparing display screens and films. Some progress has been made in the fields of solar ...

AI Technical Summary

Problems solved by technology

[0004] The prior art has proposed some control and compensation schemes for ink drop positioning errors, such as the method and system for inkjet ink drop positioning calibration, and introduced the method of adjusting the angle of the nozzle on the nozzle to compensate for the ink drop caused by the flying angle of the ink drop. Positioning errors, but in recent years, the nozzles widely used in inkjet printing have a high degree of integration, and the weight of the nozzle module is heavy. The angle of the nozzle is not easy to adjust, and the angle of the nozzle is difficult to adjust

Further research found that the technologies involved in the existing patents and literature still have the following deficiencies: On the one hand, they usually measure the position of the ink drop point, and realize the Compensation for the positioning error of the ink drop point. In actual printing, the positioning error of the ink drop point is affected by different types of errors in the process of ink drop ejection from the nozzle, flight process, and landing on the substrate. However, the existing methods do not Different types of errors are used to measure and compensate the ink drop point positioning error; on the other hand, most of them are printed on paper and other media, and then the position of the ink drop point is measured to obtain the drop point error and control , this method is an off-line control method, and the compensation effect is poor in the formal printing process

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