Transparent articles with high shallow hardness and display devices with the same

A transparent article, comprising:

• a substrate comprising a first primary surface and a second primary surface, the primary surfaces opposing one another;
• and
• an optical film structure defining an outer surface, the optical film structure disposed on the first primary surface,
• wherein the optical film structure comprises an outer structure, an inner structure, an outermost capping layer, and a scratch-resistant layer disposed between the outer and inner structures,
• wherein the outer structure comprises at least one medium refractive index (RI) layer in contact with one or more of:
• (a) the scratch-resistant layer, (b) a high RI layer in the outer structure, and (c) a low RI layer in the outer structure,
• wherein the scratch-resistant layer has a physical thickness of greater than or equal to 1500 nm,
• wherein each of the medium RI layers comprises a refractive index from 1.5 to 1.9, each of the high RI layers comprises a refractive index of greater than 1.90, and each of the low RI layers comprises a refractive index of less than 1.5, and
• further wherein the scratch-resistant layer comprises SiOxNy, wherein the capping layer and each low RI layer comprises SiO2, each medium RI layer comprises SiOxNy, and each high RI layer comprises SiOxNy or SiNx.