Touch screen with bacteria inhibition layer and manufacturing method thereof
AssigneeTPK Touch Solutions Inc.
InventorChun-Min Hu
Life of this patent
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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.
Claims7
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 particles of nano-sized metal material in a solvent, the nano-sized metal material being nano-sized silver (Ag);
- mixing the dispersing solution with an anti-glare treatment solution which comprises silicate, water, acid and solvent to forum an acid solution so that the acid solution has a concentration of 20 ppm to 500 ppm of nano-sized metal material;
- evenly coating the acid solution on a surface of the inorganic substrate of the touch screen;
- and
- performing a heat treatment to the inorganic substrate at a temperature ranged from 160° C. to 200° C. until the solvent in the acid solution is completely evaporated so that the particles of the nano-sized metal material are densely adhered to the surface of the inorganic substrate of the touch screen to form a bacteria inhibition layer thereon, wherein, the bacteria inhibition layer has a thickness between 50 Å and 5000 Å.
Dependencies are inferred from the claim text.