The second generation of gorilla glass than ordinary glass strong flexibility to many. Under pressure, the gorilla glass can produce a certain deformation and not easily broken, on the screen by the impact, can absorb the impact, so as to avoid the broken glass. Its production materials and other ordinary glass basic no difference, as is limestone, Ishi Eisa as well as in the production of sodium borate, sodium calcium glass production, will be placed in potassium nitrate solution, to complete the ion exchange, potassium and sodium ion replacement, formed to strengthen the compression layer. The compression layer is thicker, its strength will be higher, at the same time, in the scratch, to break through the thick layer of protection to the glass to leave traces.