Method for Strengthening Glass and Glass Using the Same

Abstract

A method for strengthening glass and a glass using the same are provided. The method for strengthening glass includes the following steps. Firstly, a glass substrate, which has a first surface and a second surface opposite to the first surface, is provided. Next, a barrier film is formed on at least one of the first surface and the second surface. Then, the glass substrate with the barrier film is immersed in a strengthening solution. The strengthening solution includes first ions, and the barrier film can limit the first ions in the quantity entering the glass substrate.

What is claimed is: 
     
         1 . A method for forming a glass, comprising:
 forming a glass substrate having a first surface and a second surface opposite to the first surface, wherein the glass substrate has metal particles aggregated on the first surface more than on the second surface;   forming a barrier film on the first surface of the glass substrate; and   immersing the glass substrate with the barrier film in a strengthening solution comprising a plurality of first ions to camber the glass substrate, and some of the first ions are within the barrier film.   
     
     
         2 . The method for forming the glass according to  claim 1 , wherein by immersing the glass substrate with the barrier film in the strengthening solution, second ions of the glass substrate are replaced by the first ions, a size of each of the first ions is larger than a size of each of the second ions. 
     
     
         3 . The method for forming the glass according to  claim 1 , wherein the first ions enters into the second surface of the glass substrate more than into the first surface of the glass substrate. 
     
     
         4 . The method for forming the glass according to  claim 1 , wherein the barrier film limits the first ions in a quantity entering the glass substrate through the barrier film. 
     
     
         5 . The method for forming the glass according to  claim 1 , wherein the glass substrate is formed by a floating process, the first surface being contact with a tin solution, the second surface being contact with an air. 
     
     
         6 . The method for forming the glass according to  claim 1 , wherein the glass substrate has tin particles aggregated on the first surface more than on the second surface. 
     
     
         7 . The method for forming the glass according to  claim 1 , wherein the barrier film is selected from the group consisting of metal film, silicon dioxide (SiO 2 ) film, titanium dioxide (TiO 2 ) film, tantalic oxide (Ta 2 O 5 ) film, and niobium oxide (Nb 2 O 5 ) film. 
     
     
         8 . The method for forming the glass according to  claim 1 , wherein a thickness of the barrier film ranges between 1 and 100 nm. 
     
     
         9 . The method for forming the glass according to  claim 1 , wherein a composition of the glass substrate comprises a plurality of second ions, and a size of each of the first ions is larger than a size of each of the second ions. 
     
     
         10 . The method for forming the glass according to  claim 1 , wherein the barrier film is formed on only the first surface of the glass substrate. 
     
     
         11 . The method for forming the glass to  claim 1 , wherein a heat-resistant temperature of the barrier film is higher than a temperature of the strengthening solution. 
     
     
         12 . A glass, comprising:
 a glass substrate, wherein the glass substrate has a first surface and a second surface opposite to the first surface, the glass substrate has metal particles aggregated on the first surface more than on the second surface; and   a barrier film disposed on the first surface of the glass substrate, wherein the glass substrate has first ions aggregated on the second surface more than on the first surface, and some of the first ions are within the barrier film.   
     
     
         13 . The glass according to  claim 12 , wherein the glass substrate has tin particles aggregated on the first surface more than on the second surface 
     
     
         14 . The glass according to  claim 12 , wherein the barrier film is selected from the group consisting of metal film, silicon dioxide (SiO 2 ) film, titanium dioxide (TiO 2 ) film, tantalic oxide (Ta 2 O 5 ) film and niobium oxide (Nb 2 O 5 ) film. 
     
     
         15 . The glass according to  claim 12 , wherein a thickness of the barrier film ranges between 1 nm and 100 nm. 
     
     
         16 . The glass according to  claim 12 , wherein a composition of the glass substrate comprises a plurality of second ions, and a size of each of the first ions is larger than a size of each of the second ions. 
     
     
         17 . The glass according to  claim 12 , wherein the barrier film disposed on only the first surface of the glass substrate. 
     
     
         18 . The glass according to  claim 12 , wherein the barrier film is formed on the entirety of the first surface of the glass substrate. 
     
     
         19 . The glass according to  claim 12 , wherein the barrier film is formed on only a portion of the first surface of the glass substrate. 
     
     
         20 . The glass according to  claim 12 , wherein the substrate is formed by e method according to  claim 1 .