Antiglare touch screen displays and other coated articles and methods of forming them

A touch screen display demonstrating antiglare properties, wherein the touch screen display comprises a substrate and a cured coating formed by spray applying a curable film-forming composition to at least one surface of the substrate and curing of the curable film-forming composition, wherein the curable film-forming composition has a solids content of less than 10 percent by weight and comprises:

• (i) a tetraalkoxysilane comprising tetramethoxysilane and/or tetraethoxysilane present in an amount of less than 32 percent by weight, based on the total weight of the curable film-forming composition;
• (ii) a mineral acid;
• and
• (iii) a solvent;
• wherein the weight ratio of mineral acid to tetraalkoxysilane is greater than 0.008:1 and less than 0.12:1;
• and wherein the cured coating demonstrates a surface roughness (Ra) of no more than 98 nm and a pencil hardness of at least 8 H, and wherein the coating is formed by a process comprising:
• (a) heating the substrate to a temperature of 100 to 350° F. (37.8 to 176.7° C.) to form a heated substrate;
• (b) spray applying the curable film-forming composition to at least one surface of the heated substrate to form a coated substrate;
• and
• (c) subjecting the coated substrate to thermal conditions for a time sufficient to effect cure of the sol-gel layer.