Touch screen lead conductive circuit and manufacturing method thereof, and touch screen mobile phone
A touch screen lead wire and conductive circuit technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problems of complex process and high cost of touch screen lead wire conductive circuit, and achieve excellent bonding effect and use effect. and high quality, the effect of improving the quality of the product
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[0039] As for the preparation method of nano-glass powder, nano-glass powder can be prepared by high-energy ball milling, that is, each oxide component is first weighed, followed by mixing, high-temperature smelting, quenching, high-energy ball milling and drying, and finally obtained Nano glass powder. Nano glass powder can also be prepared by evaporation-condensation method, that is, using a plasma arc to heat Si, B, Bi, Zn and other elements together to a high temperature and evaporate, and pass in a mixed gas containing inert gas and oxygen to evaporate. The resulting gas atoms are condensed into nano-glass powders.
[0040]The nano-glass powder used in the present invention has the advantage of low softening temperature, and in the process of sintering the conductive ink, the nano-glass powder can be melted and sintered together with the nano-copper-silver alloy powder. When the touch screen substrate is the glass substrate, the glass powder is similar to the touch scree...
Embodiment 1
[0053] Raw materials used in this Example 1: nano-copper-silver alloy powder (average particle size is 45nm, silver mass percentage is 10%), nano glass powder (average particle size is 70nm, each component mass percentage is SiO 2 5%, B 2 O 3 12%, Bi 2 O 3 80%, Na 2 O 3%), polyetheramine dispersant L-207 (weight average molecular weight is 2000, HUNTSMAN, USA), mixed solvent (prepared from 1,2-propanediol and propylene glycol monobutyl ether in a weight ratio of 1:2, the boiling points of the two are 188°C and 171°C respectively).
[0054] Prepare the touch screen lead conductive circuit as follows:
[0055] S10, take 19.4g nano copper-silver alloy powder, 0.6g nano glass powder, 1g polyetheramine dispersant L-207, and 79g mixed solvent, mix them mechanically and disperse them uniformly by ultrasonic wave to make conductive ink with a solid content of about 20%;
[0056] S20, applying the conductive ink to the touch screen glass substrate by spin coating;
[0057] ...
Embodiment 2
[0061] Raw materials used in this Example 2: nano-copper-silver alloy powder (average particle size is 80nm, silver mass percentage is 20%), nano glass powder (average particle size is 70nm, each component mass percentage is SiO 2 5%, B 2 O 3 12%, Bi 2 O 3 80%, Na 2 O 3%), polyetheramine dispersant L-207 (weight average molecular weight is 2000, HUNTSMAN, USA), mixed solvent (prepared from 1,2-propanediol and propylene glycol monobutyl ether in a weight ratio of 1:2, the boiling points of the two are 188°C and 171°C respectively).
[0062] Prepare the touch screen lead conductive circuit as follows:
[0063] S10, take 19.4g nano copper-silver alloy powder, 0.6g nano glass powder, 0.8g polyetheramine dispersant L-207 and 79.2g mixed solvent, mix them mechanically and disperse them uniformly by ultrasonic wave to make conductive ink with a solid content of about 20%;
[0064] S20, the conductive ink is coated on the touch screen glass substrate by spin coating;
[00...
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