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Method for preparing large-size touch screen functional sheet by adopting small screen printing plate

A touch screen and functional sheet technology, which is applied in the field of preparing large-size touch screen functional sheets by using small screen plates to achieve the effects of reducing investment, high consistency and improving product accuracy

Active Publication Date: 2019-11-29
芜湖伦丰电子触摸屏产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problems existing in the research and development process of large-size functional sheets at present, the present invention provides a method for preparing large-size touch screen functional sheets by using a small screen, and using the existing small screen to print large-size functional sheets. The full-page silver paste film pattern of the film and improve the consistency of the silver paste film pattern printing

Method used

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  • Method for preparing large-size touch screen functional sheet by adopting small screen printing plate
  • Method for preparing large-size touch screen functional sheet by adopting small screen printing plate
  • Method for preparing large-size touch screen functional sheet by adopting small screen printing plate

Examples

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Effect test

Embodiment 1

[0032] Embodiment 1: adopt the following method to prepare 150 inch nano-silver touch screen functional sheet:

[0033] (1) On one side or both sides of the substrate, it is indicated to form a transparent nano-silver wire induction pattern conductive layer;

[0034] (2) Print the silver paste film pattern on the conductive layer of the induction pattern to make it electrically contact with the conductive film layer below, and the silver paste film pattern is contacted and connected with the induction pattern and the peripheral circuit through the overlapping block;

[0035] (3) Forming the sensing region pattern by etching on the conductive layer of the sensing pattern by laser technology; the diameter of the laser spot used in the laser etching is 0.035 mm.

[0036] (4) According to the shape of the product, the excess silver paste film pattern on one side is cut off, and the ground line is etched with laser on the remaining silver paste film pattern on the cut side; the exc...

Embodiment 2

[0040] Embodiment 2: adopt the following method to prepare 150 inch ITO touch screen functional sheet:

[0041] (1) On one side or both sides of the substrate, it is indicated to form a transparent ITO induction pattern conductive layer;

[0042] (2) Print the silver paste film pattern on the conductive layer of the induction pattern to make it electrically contact with the conductive film layer below, and the silver paste film pattern is contacted and connected with the induction pattern and the peripheral circuit through the overlapping block;

[0043] (3) Forming the sensing region pattern by etching on the conductive layer of the sensing pattern by laser technology; the diameter of the laser spot used in the laser etching is 0.035 mm.

[0044] (4) According to the shape of the product, the excess silver paste film pattern on one side is cut off, and the ground line is etched with laser on the remaining silver paste film pattern on the cut side; the excess silver paste film...

Embodiment 3

[0048] Embodiment 3: A 150-inch metal grid touch screen functional sheet is prepared by the following method:

[0049] (1) On one side or both sides of the substrate, a transparent metal grid induction pattern conductive layer is formed;

[0050] (2) Print the silver paste film pattern on the conductive layer of the induction pattern to make it electrically contact with the conductive film layer below, and the silver paste film pattern is contacted and connected with the induction pattern and the peripheral circuit through the overlapping block;

[0051] (3) Forming the sensing region pattern by etching on the conductive layer of the sensing pattern by laser technology; the diameter of the laser spot used in the laser etching is 0.035 mm.

[0052] (4) According to the shape of the product, the excess silver paste film pattern on one side is cut off, and the ground line is etched with laser on the remaining silver paste film pattern on the cut side; the excess silver paste film...

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Abstract

The invention discloses a method for preparing a large-size touch screen functional sheet by adopting a small screen printing plate. By half integrating a silver paste block film pattern on a small-size screen printing plate, by printing the whole silver paste block film pattern through a rotary screen printing plate printing method, by etching an induction area pattern and then cutting off the redundant silver paste block pattern and painting optical cement, the method reduces investment of early-stage research and development and equipment waste caused by project pause, increases the mold opening cost, and improves product precision. According to the method, the patterns which are divided into two parts are integrated on one screen printing plate, so that the cost of a film and the screen printing plate is reduced by half; the silver paste film pattern is printed by adopting a mode of overturning and printing one screen printing plate, and the difference of the screen printing platesis avoided, and the deviation of the whole silver paste film pattern printing is smaller, so that the touch screen functional sheet prepared by the invention is higher in consistency compared with atouch screen functional sheet spliced and printed by two screen printing plates.

Description

technical field [0001] The invention relates to the field of touch technology and the field of printing, in particular to a method for preparing a large-size touch screen functional sheet by using a small screen plate. Background technique [0002] Touch screens are widely used in various electronic equipment fields such as mobile phones, flat panel displays, vehicle navigation, industrial control, multimedia teaching, etc. The core component of touch screens is the touch screen function sheet, which is formed through a series of photolithography, printing, and coating processes. [0003] A key process step in the production process of the existing touch screen functional sheet is the printing of the silver paste film pattern on the conductive layer of the sensing pattern; with the advancement of technology, the size of the touch screen is getting bigger and bigger, and many companies face the problem that the equipment they bought before is not big enough. If you want to ma...

Claims

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Application Information

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IPC IPC(8): G06F3/041B41M1/12B41M1/26G03F7/20
CPCG06F3/0416B41M1/12B41M1/26G03F7/70733G06F2203/04103
Inventor 丁永生刘小军
Owner 芜湖伦丰电子触摸屏产业技术研究院有限公司
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