Laser cutting method and equipment for electronic paper

Abstract

The invention discloses a laser cutting method and equipment for electronic paper. The laser cutting equipment for the electronic paper comprises a working platform used for bearing the electronic paper, a laser cutting head which can do longitudinal and lateral movement relative to the working platform, a clamping system which can clamp the electronic paper, and a control system which coordinates all the parts to act. When the electronic paper is cut, the electronic paper is placed on the working platform, clamped and positioned, the laser cutting head cuts the electronic paper under the instruction of the control system, and a ratio of the cutting power to the cutting rate is kept constant in the process of cutting. Therefore, laser cutting of the electronic paper is realized, the defect that the conventional die cutting equipment damages the internal structure of the electronic paper in the production process is overcome, the yield is improved, and the production cost is lowered. Meanwhile, semi-cutting operation can be performed on the electronic paper, and the quality of cutting complex parts such as chamfers is greatly improved.

Description

technical field [0001] The invention relates to the technical field of electronic paper processing, and more specifically, relates to a laser cutting method and equipment for electronic paper. Background technique [0002] Electronic paper (e-paper) is a display device driven by an electric field, and its display materials are mainly "electronic ink (E-ink)" and "microcapsules". Electronic ink itself is a liquid that can be printed or applied to any carrier surface. The original electronic ink is composed of very small black and white particles suspended in a transparent liquid. The microcapsule technology is to wrap electronic ink in microcapsules, thus solving the problem of aggregation of pigment particles. These capsule particles injected with electronic ink are electrically charged, the white particles are positively charged, and the black particles are negatively charged. When a negative electric field is applied on the electrode plate, the white particles with posit...

AI Technical Summary

Problems solved by technology

[0004] However, the texture of the electronic paper is relatively soft, and when cutting and cutting with the metal knife mold in the prior art, the cut surface of the electronic paper will be squeezed

Microscope magnification inspection shows that the edge of the cut e-paper is warped, and the edge is not flat, which makes the e-paper prone to bright spots when displayed, resulting in poor image quality, thereby reducing the product quality. Pass rate

For the front half-cut and back half-cut that require higher precision and quality requirements, this method is powerless

In addition, the metal knife mold cutting method is used, the metal knife mold must be selected, and the mold needs to be set up, and the parameters need to be adjusted during cutting, so the cost is relatively high

Furthermore, when the cutting die is a metal blade, during the process of cutting the e-paper, there will be static electricity between the metal and the e-paper, which will easily cause the electrical abnormality of the e-paper.

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