Printing ink printing method and capacitive type touch screen laser etching technology

A technology of ink printing and ink, which is applied in printing, printing devices, electrical digital data processing, etc., can solve the problems that ink is easily broken down by laser and the yield rate of capacitive touch screen is low, so as to achieve the effect of improving yield rate

Active Publication Date: 2014-08-20
SHENZHEN YUSHUN IND INTELLIGENT TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an ink printing method, which aims to solve the problem in the prior art that the ink in the binding area is easily broken down by the laser and causes a low yield rate of the capacitive touch screen

Method used

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  • Printing ink printing method and capacitive type touch screen laser etching technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The capacitive touch screen laser etching process provided in this embodiment includes the following steps:

[0034] A: Printing ink process, which includes the following steps in sequence:

[0035] Step 1: A step of printing white ink on the cover plate, the cover plate includes a frame and a binding area located on the frame, wherein, in step 1, a layer of white ink is printed on the cover plate, and the white ink layer covers the The thickness of the white ink layer printed on the cover frame is 8 μm in the entire frame area of ​​the binding area on the cover frame;

[0036] Step 2: a step of baking and curing the white ink layer on the cover plate;

[0037] B: ITO coating process, evenly coating a layer of ITO conductive film on the cover plate;

[0038] C: Laser etching process, using a laser with a wavelength of 532nm to etch the cover plate coated with ITO conductive film to obtain an ITO circuit;

[0039] D: Reprinting frame ink process, covering the lasered ...

Embodiment 2

[0047] The difference between this embodiment and the foregoing embodiments is only in process A, and process A is described in detail below:

[0048] A: Printing ink process, which includes the following steps in sequence:

[0049] Step 1: a step of printing white ink on the cover plate, wherein, in step 1, a layer of white ink layer is printed on the cover plate, and the white ink layer covers the entire frame area including the binding area on the frame of the cover plate, The thickness of the white ink layer printed on the frame of the cover is 16 μm;

[0050] Step 2: a step of baking and curing the white ink layer on the cover plate;

[0051] Wherein, in step 1, the white ink layer is divided into two layers of oil for printing, and the thickness of each white ink layer is 8 μm.

[0052] Wherein, in step 1, the fluid of the white ink layer is leak-printed on the cover plate through the screen by using a screen printing machine, and the mesh number of the screen printing...

Embodiment 3

[0056] The difference between this embodiment and the foregoing embodiments is only in process A, and process A is described in detail below:

[0057] A: Printing ink process, which includes the following steps in sequence:

[0058] Step A: printing a black ink layer or a colored ink layer on the frame of the cover plate;

[0059] Step B: a step of baking and curing the black ink layer or the colored ink layer on the cover plate;

[0060] Step 1: a step of printing white ink on the cover plate, wherein the white ink layer only covers the binding area of ​​the cover plate, and the thickness of the white ink layer is 8 μm;

[0061] Step 2: a step of baking and curing the white ink layer on the cover plate;

[0062] Wherein, the thickness of the black ink layer or the color ink layer is 4 μm.

[0063] Wherein, in step B, the curing temperature of the black ink layer or the colored ink is 150°, and the curing time is 10 minutes.

[0064] Wherein, in step A, the black ink layer...

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Abstract

The invention relates to the technical field of touch screens, and provides a printing ink printing method. The method comprises the following steps that firstly, a cover plate is printed with white printing ink, at least the binding area of the cover plate is printed with a white printing ink layer, and the thickness of the white printing ink layer printed on the binding layer ranges from 8 microns to 16 microns; secondly, the white printing ink layer on the cover plate is baked and solidified. The invention further provides a capacitive type touch screen laser etching technology. The technology comprises the printing ink printing procedure in the printing ink printing method, the ITO coating procedure, the laser etching procedure, the frame printing ink supplement printing procedure, the binding procedure and the pasting procedure. Compared with the prior art, the printing ink printing method has the advantage that the printing ink on the binding area can be prevented from disengaging. According to the capacitive type touch screen laser etching technology, the printing ink is prevented from being subjected to the laser in the laser etching procedure, and the yield of a capacitive touch screen is improved.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to an ink printing method and a capacitive touch screen laser etching process. Background technique [0002] The capacitive touch screen uses the current induction change of the human body to locate the touch position when touching. Touch technology of projected capacitive panel: projected capacitive touch screen is to etch different ITO conductive circuit modules on two layers of ITO (indium tin oxide) conductive glass coating. The patterns etched on the two modules are perpendicular to each other, and they can be regarded as sliders that change continuously in the X and Y directions. Since the X and Y structures are on different surfaces, their intersections form a capacitor node. One slider can be used as a drive line, and the other slider can be used as a sense line. When the current passes through one wire in the drive line, if there is a signal of capacitance change o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/18B41M1/26G06F3/044
Inventor 陈志雄杨顺林陈毅王桥
Owner SHENZHEN YUSHUN IND INTELLIGENT TECH CO LTD
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