Electronic pen, printing equipment and printing method

A technology for electronic pens and printing equipment, applied in printing, typewriters, etc., can solve the problems of difficulty in recovery, the influence of external disturbances on shape and charge distribution, poor stability of Taylor cones, etc., and achieve the effect of resisting external disturbances

Active Publication Date: 2016-02-03
深圳市比欧特光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability of the Taylor cone obtained by using the above-mentioned conventional electrode structure is poor, and it is especially difficult to obtain liquid beamlets with small diameters (such as 10 microns or less), because the Taylor cone is very sensitive, and its shape and charge distribution are easily Affected by changes such as voltage and current and external disturbances, the traditional electrode structure lacks a stabilization mechanism, so it is difficult to return to the original state once it is subjected to external disturbances

Method used

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  • Electronic pen, printing equipment and printing method
  • Electronic pen, printing equipment and printing method
  • Electronic pen, printing equipment and printing method

Examples

Experimental program
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Effect test

Embodiment 1

[0040] figure 2 is a schematic diagram showing an electronic pen (also called a maskless controllable electronic pen because it can be used to directly form a wiring pattern on a substrate by printing) according to an embodiment of the present invention. Such as figure 2 As shown, the electronic pen 200 of this embodiment includes: a housing 202 and an electrode 204, the housing 202 has an input port 206 at the upper part and a discharge hole 208 at the bottom, and the electrode 204 is located at the center of the housing 202 . The discharge hole 208 is preferably circular and the electrode 204 is aligned with the center of the discharge hole 208 . The electrode 204 has a free end (which is a tapered end) adjacent to the discharge hole 208, and the tapered end of the electrode 204 is designed according to the shape of the liquid Taylor cone desired to be formed at the discharge hole 208, i.e., the electrode 204 The tapered end is formed to match the desired liquid Taylor ...

no. 2 Embodiment

[0045] Combine below Figure 4 The second embodiment of the present invention will be described.

[0046] In order to further obtain a liquid thin beam with a required diameter and a more stable thin-beam jet, the structure of the electrode is further improved in this embodiment. Specifically, a plurality of protrusions (a plurality of sharp metal burrs formed on the tapered end of the electrode during the fabrication of the electrode) are formed on the tapered end of the electrode. Figure 4 A schematic structural view showing a plurality of protrusions 212 formed on the tapered end of the electrode according to the second embodiment of the present invention. Such as Figure 4 As shown, these protrusions 212 are arranged on the tapered end surface of the electrode according to the surface curvature of the tapered end surface, that is, the arrangement density of these protrusions 212 is proportional to the curvature of the tapered end surface everywhere. The greater the cur...

no. 3 Embodiment

[0050] The following will combine Figure 5 A third embodiment of the present invention will be described.

[0051] This third embodiment provides an electronic pen with an improved electrode structure. The electronic pen in this embodiment uses the principle of electrostatic spraying to form a liquid Taylor cone at the discharge hole, thereby forming a thin liquid beam, and the charge injected into the liquid through the electrode is mainly distributed in the Taylor cone and its vicinity, so that small external disturbances can be eliminated. It is possible to cause the redistribution of charges in the Taylor cone and its vicinity, which will generate a small current in the local Taylor cone, which will affect the shape of the Taylor cone, and the change of the shape of the Taylor cone will inevitably cause the change of the diameter of the thin liquid beam . In view of this, in this embodiment, the electrode structure is improved, so that the shape of the Taylor cone is no...

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Abstract

The invention provides an electronic pen, printing equipment and a printing method. The electronic pen comprises a shell body and an electrode. The shell body contains liquid and a discharging hole where the liquid is discharged is formed in the bottom end of the shell body. The electrode is located in the shell body. The end, close to the discharging hole, of the electrode is the free end. The shape of the free end of the electrode is formed to be matched with an expected Taylor cone formed in the position of the discharging hole of the liquid. A liquid thin bundle with a specific diameter can be steadily obtained through the electronic pen, and stable jet flow of the required thin bundle can be obtained when the liquid is continuously output through the discharging hole.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to an electronic pen, a printing device with the electronic pen and a printing method executed by the printing device. Background technique [0002] In the prior art, technologies commonly used to form liquid thin beams include inkjet printing and electrospinning. Inkjet printing technology generates droplets by locally heating the liquid or precisely extruding the liquid through piezoelectric ceramics, and then charges them, and then forms fine beams, and the accuracy is usually on the order of tens of microns. In the current printing technology, discrete droplets are formed through nozzles, and then printed with droplets. When printing with droplets, the efficiency is lower than that of thin liquid beams that are not broken, and the droplets are susceptible to external interference. The width is not easy to control to a higher precision. [0003] Electrospinning use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41J3/407
Inventor 雷震黄智伟
Owner 深圳市比欧特光电有限公司
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