CN209248494U

CN209248494U - Nano Silver touch screen

Info

Publication number: CN209248494U
Application number: CN201822084670.2U
Authority: CN
Inventors: 顾宏伟; 戚芬强
Original assignee: Gushi Nano Technology (zhejiang) Co Ltd
Current assignee: Zhejiang Xingyue Electronic Technology Co.,Ltd.
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2019-08-13
Anticipated expiration: 2028-12-12

Abstract

The utility model belongs to touch screen technology field, more particularly to a kind of nano Silver touch screen, including flexible circuit board and substrate, the substrate surface is successively arranged first layer nano-silver conductive layer, first layer conductive silver slurry layer, first layer transparent insulation ink, second layer nano-silver conductive layer, second layer conductive silver slurry layer, second layer transparent insulation ink layer.Nano Silver touch screen provided by the utility model, manufacturing procedure is simple, and then production cost is greatly reduced, improves production efficiency, and multilayer barrier material has been used to be protected, and the touch screen of production has stronger environmental resistance, has the more long life.

Description

Nano Silver touch screen

Technical field

The utility model belongs to touch screen technology field, and in particular to a kind of nano Silver touch screen.

Background technique

Touch membrane is a kind of absolute positioning system for being very suitable to human-computer interaction, can be realized the simple action of finger Complete the complex operations of display interface.The basic structure of traditional capacitance screen is emission layer, adhered layer, receiving layer, adhered layer and lid Glass sheet.But with the development of the products such as mobile terminal, wearable device, intelligent appliance, education blackboard, to the need of touch screen It asks and is increasing, while the requirement to touch screen is also higher and higher.The requirement of large scale touch screen and demand are also increasing. But structure is complicated for traditional approach production capacitance plate, production process is complicated.In view of this, it is necessary to existing touch screen Preparation method and its structure for touching touch screen are improved, to solve the above problems.

Utility model content

In view of the above-mentioned problems, the utility model provides a kind of nano Silver touch screen.

Specific technical solution are as follows:

Nano Silver touch screen, including flexible circuit board and substrate, the substrate surface are successively arranged first layer nano silver Conductive layer, first layer conductive silver slurry layer, first layer transparent insulation ink, second layer nano-silver conductive layer, second layer conductive silver paste Layer, second layer transparent insulation ink layer.

The preparation method of the nano Silver touch screen, comprising the following steps:

(1) transparent first layer nano-silver conductive layer is coated in the substrate surface for carrying out two-sided hardening or single side hardening；

First layer nano-silver conductive layer coating thickness dries solidification using continuous tunnel furnace after 0.5-20 μm, coating, dries Roasting temperature is 50-150 DEG C, and the conductive layer thickness after final baking is dry is 20-2000nm；

(2) first layer conductive silver slurry layer is printed by way of silk-screen printing on the surface of nano-silver conductive layer；

The wet-film thickness of first layer conductive silver slurry layer printing is 5-20 μm, is dried after finishing printing using oven or continuous tunnel furnace Solidifying baking temperature is 50-200 DEG C, and the first layer conductive silver slurry layer thickness of dry film after final baking is dry is 1-10 μm；

(3) radium-shine processing is carried out using the product that laser-induced thermal etching equipment makes step (2), produces required touch-control Pel；

The type of laser machine is far infrared laser machine, and the frequency of laser is in 10-200Hz, pulsewidth 10-500ps, speed 1000-100,000mm/s；

(4) first layer transparent insulation oil is made by way of printing or being coated on the product that step (3) is made Ink；

The wet-film thickness of first layer transparent insulation ink is 5-20 μm, uses oven or tunnel after printing or coating It is 50-200 DEG C that furnace, which dries solidification baking temperature,；

Being solidified if using UV cured printing ink using UV curing, the lamp of UV curing is 10-8000mj according to intensity, Temperature is 20-80 DEG C；

First layer transparent insulation ink thickness of dry film after final baking is dry is 1-10 μm；

(5) product made in step (4) is coated second layer nano-silver conductive layer；

Using slit squeezing and coating cloth, roller coating, line applies or other coating process, and the coating thickness of product is applied at 0.5-20 μm Solidification is dried using continuous tunnel furnace after cloth, baking temperature is 50-150 DEG C, and the second layer nano silver after final baking is dry is led Electric layer is with a thickness of 20-2000nm；

(6) product made in step (5) is printed into second layer conductive silver slurry layer by way of silk-screen printing again；

The wet-film thickness of second layer conductive silver slurry layer printing is 5-20 μm, is dried after finishing printing using oven or continuous tunnel furnace Solidifying baking temperature is 50-200 DEG C, and the second layer conductive silver slurry layer thickness of dry film after final baking is dry is 1-10 μm；

(7) product in step (6) is printed to the pattern of second layer transparent insulation ink layer by way of silk-screen printing；

The wet-film thickness of second layer transparent insulation ink layer is 5-20 μm, is dried after finishing printing using oven or continuous tunnel furnace Solidifying baking temperature is 50-200 DEG C；

Being solidified if using UV cured printing ink using UV curing, the lamp of UV curing is 10-8000mj according to intensity, Temperature is 20-80 DEG C, and the second layer transparent insulation ink thickness of dry film after final baking is dry is 1-10 μm.

(8) product in step (7) is placed in cleaning line and is cleaned, clean addition low-intensity oxidation in the cleaning solution in line The liquid of ability；

(9) product that flexible circuit board and step (8) are made is pressed to together using hot pressing make-up machine, constitutes nanometer Silver-colored touch screen.

The technical advantage that nano Silver touch screen provided by the utility model has are as follows:

1. manufacturing procedure is simple, and then production cost is greatly reduced, improves production efficiency；

It, will not be to environmental concerns 2. the material that production process uses is environment-friendly materials entirely；

3. multilayer barrier material has been used to be protected, the touch screen of production has stronger environmental resistance, has longer Service life；

4. product has used multilayer filter, some blue light can be obstructed, plays the effect of eyeshield.

Detailed description of the invention

Fig. 1 is utility model device fundamental profile structural schematic diagram.

Specific embodiment

The technical solution of the utility model is described with reference to the drawings.

As shown in Figure 1, as shown in Figure 1, nano Silver touch screen, including flexible circuit board and substrate 1,1 table of substrate Face is successively arranged first layer nano-silver conductive layer 2, first layer conductive silver slurry layer 3, first layer transparent insulation ink 4, the second layer and receives Rice silver conductive layer 5, second layer conductive silver slurry layer 6, second layer transparent insulation ink layer 7.

The feature request of substrate 1 includes that transmitance is greater than 85%, surface hardness >=2H.Substrate 1 include PET, PMMA, PC, Many transparent substrates such as glass.Two layer patterns are made on individual substrate upper surface.Transparent insulation ink includes that resinae is transparent Material and photoresist class transparent material.

Two layers transparent insulation ink printing be and the consistent pattern of the conductive pattern of nano-silver conductive layer, dielectric ink Layer is whole face printing layer.

Adding ingredient in step (8) cleaning solution includes: hydrogen peroxide, sodium thiosulfate, NaHS, iron chloride, chlorination The water-soluble material of the low oxidizing abilities such as copper.

The material substitutions such as conductive copper wire, conductive copper paste and copper foil and aluminium foil can be used in conductive silver paste

Graphene, carbon nanotube, ITO, IZO and conductive polymer glue etc. can be used in nano-silver conductive layer, and other transparent are led Electric material substitution.

(1) transparent first layer nano-silver conductive layer 2 is coated on 1 surface of substrate for carrying out two-sided hardening or single side hardening；

2 coating thickness of first layer nano-silver conductive layer dries solidification using continuous tunnel furnace after 0.5-20 μm, coating, dries Roasting temperature is 50-150 DEG C, and the conductive layer thickness after final baking is dry is 20-2000nm；

(2) first layer conductive silver slurry layer 3 is printed by way of silk-screen printing on the surface of nano-silver conductive layer；

The wet-film thickness that first layer conductive silver slurry layer 3 prints is 5-20 μm, roasting using oven or continuous tunnel furnace after finishing printing Solidization baking temperature is 50-200 DEG C, and 3 thickness of dry film of first layer conductive silver slurry layer after final baking is dry is 1-10 μm；

(4) first layer transparent insulation oil is made by way of printing or being coated on the product that step (3) is made Ink 4；

The wet-film thickness of first layer transparent insulation ink 4 is 5-20 μm, uses oven or tunnel after printing or coating It is 50-200 DEG C that road furnace, which dries solidification baking temperature,；

4 thickness of dry film of first layer transparent insulation ink after final baking is dry is 1-10 μm；

(5) product made in step (4) is coated second layer nano-silver conductive layer 5；

Using slit squeezing and coating cloth, roller coating, line applies or other coating process, and the coating thickness of product is applied at 0.5-20 μm Solidification is dried using continuous tunnel furnace after cloth, baking temperature is 50-150 DEG C, and the second layer nano silver after final baking is dry is led Electric layer 5 is with a thickness of 20-2000nm；

(6) product made in step (5) is printed into second layer conductive silver slurry layer 6 by way of silk-screen printing again；

The wet-film thickness that second layer conductive silver slurry layer 6 prints is 5-20 μm, roasting using oven or continuous tunnel furnace after finishing printing Solidization baking temperature is 50-200 DEG C, and 6 thickness of dry film of second layer conductive silver slurry layer after final baking is dry is 1-10 μm；

(7) product in step (6) is printed to the figure of second layer transparent insulation ink layer 7 by way of silk-screen printing Case；

The wet-film thickness of second layer transparent insulation ink layer 7 is 5-20 μm, roasting using oven or continuous tunnel furnace after finishing printing Solidization baking temperature is 50-200 DEG C；

Claims

1. nano Silver touch screen, including flexible circuit board and substrate, which is characterized in that the substrate surface is successively arranged first Layer nano-silver conductive layer, first layer conductive silver slurry layer, first layer transparent insulation ink, second layer nano-silver conductive layer, the second layer Conductive silver slurry layer, second layer transparent insulation ink layer.