Touch Screen with Bacteria Inhibition Layer and Manufacturing Method Thereof

Abstract

The present invention is to provide a touch screen having a bacteria inhibition layer for prohibiting bacteria from growing thereon and a method for manufacturing the same comprising uniformly dispersing particles of nano metal material in a solution to be applied to a surface treatment so that the solution can have a concentration of 20 ppm to 500 ppm; evenly spray coating the solution on a screen of the touch screen; and subjecting the solution coated on the screen of the touch screen to a heat treatment until solvent in the solution is completely evaporated so that the particles of the nano metal material are densely adhered to the screen of the touch screen to form a bacteria inhibition layer thereon.

What is claimed is: 
     
         1 . A method for manufacturing a touch screen having an inorganic substrate with a bacteria inhibition layer, the method comprising:
 forming a dispersing solution by uniformly dispersing nano-sized particles having biochemical activation in a first solvent;   forming, an acid solution by mixing the dispersing solution with a surface treatment solution which comprises silicate, water, acid and a second solvent;   coating a surface of the inorganic substrate of the touch screen with the acid solution; and   performing a heat treatment on to the coated inorganic substrate to form a bacteria inhibition layer having the nano-sized metal particles.   
     
     
         2 . The method of  claim 1 , wherein in the step of forming a dispersing solution, the nano-sized particles having biochemical activation comprise at least one of nano-sized metal particles, nano-sized metal-oxide particles or nano-sized metal-nitrite particles. 
     
     
         3 . The method of  claim 2 , wherein the nano-sized metal particles comprise at least one of nano-sized silver particles, nano-sized gold particles, nano-sized copper particles, nano-sized zinc particles or nano-sized platinum particles; wherein the nano-sized metal-oxide particles comprise at least one of nano-sized silver oxide particles, nano-sized copper oxide particles or nano-sized zinc oxide particles; wherein the nano-sized metal-nitrite particles comprise at least one of nano-sized silver nitride particles, nano-sized copper nitrite particles or nano-sized zinc nitrite particles. 
     
     
         4 . The method of  claim 1 , wherein in the step of forming a dispersing solution, the first solvent of the dispersing solution comprises an alcoholic solvent. 
     
     
         5 . The method of  claim 4 , wherein the first solvent of the dispersing solution is ethyl alcohol. 
     
     
         6 . The method of  claim 1 , wherein in the step of forming an acid solution, a concentration of the nano-sized particles having biochemical activation is ranged from about 20 ppm to about 500 ppm. 
     
     
         7 . The method of  claim 1 , wherein in the step of forming an acid solution, the surface treatment solution is at least one of an anti-glare treatment solution, a hardening treatment solution, an endurability treatment solution, or an anti-reflection treatment solution, the second solvent of the surface treatment solution comprises alcohol, and the silicate of the surface treatment solution comprises ethyl silicate. 
     
     
         8 . The method of  claim 1 , wherein in the step of coating a surface of the inorganic substrate, the inorganic substrate is a glass substrate. 
     
     
         9 . The method of  claim 1 , wherein in the step of coating a surface of the inorganic substrate, the surface of the inorganic substrate is coated with the touch screen with the acid solution by a spin coating method, a dipping coating, method, a spray coating method, or a rolling coating method. 
     
     
         10 . The method of  claim 1 , wherein in the step of performing a heat treatment, the coated inorganic substrate is heated at a temperature ranged from about 160° C. to about 200° C. 
     
     
         11 . The method of  claim 1 , wherein the dispersing solution is subjected to a mixing technique comprising a milling method and an ultrasonic vibration method at a frequency ranged from 10 KHz to 50 KHz to uniformly disperse the nano-sized particles having, biochemical activation in the first solvent. 
     
     
         12 . A touch screen manufactured by the method of  claim 1 , the touch screen comprising:
 an inorganic substrate;   a bacteria inhibition layer formed on a surface of the inorganic substrate,   wherein the bacteria inhibition layer comprises nano-sized particles having biochemical activation and surface treatment particles which comprise silicate.   
     
     
         13 . The touch screen of  claim 12 , wherein the nano-sized particles having biochemical activation comprise at least one of nano-sized metal particles, nano-sized metal-oxide particles or nano-sized metal-nitrite particles, and the surface treatment particles comprise at least one of hardening treatment particles, endurability treatment particles, anti-glare treatment particles, or anti-reflection treatment particles. 
     
     
         14 . The touch screen of  claim 13 , wherein the nano-sized metal particles comprise at least one of nano-sized silver particles, nano-sized gold particles, nano-sized copper particles, nano-sized zinc particles or nano-sized platinum particles; wherein the nano-sized metal-oxide particles comprise at least one of nano-sized silver oxide particles, nano-sized copper oxide particles or nano-sized zinc oxide particles; wherein the nano-sized metal-nitrite particles comprise at least one of nano-sized silver nitride particles, nano-sized copper nitrite particles or nano-sized zinc nitrite particles. 
     
     
         15 . The touch screen of  claim 12 , Wherein the bacteria inhibition layer has a thickness ranged from about 50 Å to about 5000 Å. 
     
     
         16 . A touch screen manufactured by the method of  claim 1 , the touch screen comprising:
 an inorganic substrate;   a multi-function layer formed on a surface of the inorganic substrate,   wherein the multi-function layer comprises nano-sized particles having biochemical activation and surface treatment particles which comprise silicate, wherein the nano-sized particles perform a bacteria inhibition function and the surface treatment particles perform a surface treatment function.   
     
     
         17 . The touch screen of  claim 16 , wherein the nano-sized particles haying biochemical activation comprise at least one of nano-sized metal particles, nano-sized metal-oxide particles or nano-sized metal-nitrite particles, and the surface treatment particles comprise at least one of hardening treatment particles, endurability treatment particles, anti-glare treatment particles, or anti-reflection treatment particles. 
     
     
         18 . The touch screen of  claim 17 , wherein the nano-sized metal particles comprise at least one of nano-sized silver particles, nano-sized gold particles, nano-sized copper particles, nano-sized zinc particles or nano-sized platinum particles:, wherein the nano-sized metal-oxide particles comprise at least one of nano-sized silver oxide particles, nano-sized copper oxide particles or nano-sized zinc oxide particles; wherein the nano-sized metal-nitrite particles comprise at least one of nano-sized silver nitride particles, nano-sized copper nitrite particles or nano-sized zinc nitrite particles. 
     
     
         19 . The touch screen of  claim 16 , wherein the multi-function layer has a thickness ranged from about 50 Å to about 5000 Å.