Display articles with antiglare surfaces and thin, durable antireflection coatings

A display article, comprising:

• a substrate comprising a thickness and a primary surface;
• a textured surface region defined by the primary surface;
• and
• an antireflective coating disposed on the textured surface region defined by the primary surface of the substrate,
• wherein the textured surface region comprises a plurality of structural features and an average texture height (Rtext) from 50 nm to 300 nm, and
• wherein the substrate exhibits a sparkle of less than 5%, as measured by pixel power deviation (PPD140) at an incident angle of 0° from normal, and a transmittance haze of less than 40% from an incident angle of 0° from normal,
• wherein the antireflective coating comprises a total physical thickness from 200 nm to 500 nm and a plurality of alternating high refractive index layers and low refractive index layers, wherein the antireflective coating comprises a total of three (3) to nine (9) layers,
• wherein each of the low refractive index layers comprises a refractive index of less than or equal to about 1.8, and each of the high refractive index layers comprises a refractive index of greater than 1.8,
• wherein each high refractive index layer comprises one of Si3N4, SiNx and SiOxNy, and
• further wherein the article exhibits a first-surface average photopic specular reflectance (% R) of less than 0.3% at any incident angle from about 5° to 20° from normal at wavelengths from 450 nm to 650 nm.

A display article, comprising:

• a substrate comprising a thickness and a primary surface;
• a roughened surface region defined by the primary surface;
• and
• an antireflective coating disposed on the roughened surface region of the primary surface of the substrate,
• wherein the roughened surface region comprises a plurality of structural features and an average surface roughness (Rq) from 20 nm to 2000 nm root-mean-square (RMS) variation,
• wherein the substrate exhibits a sparkle of less than 5%, as measured by pixel power deviation (PPD140) at an incident angle of 0° from normal, and a transmittance haze of less than 40% from an incident angle of 0° from normal,
• wherein the antireflective coating comprises a total physical thickness from 200 nm to 500 nm and a plurality of alternating high refractive index and low refractive index layers, wherein the antireflective coating has a total of three (3) to nine (9) layers,
• wherein each of the low refractive index layers comprises a refractive index of less than or equal to about 1.8, and each of the high refractive index layers comprises a refractive index of greater than 1.8,
• wherein each high refractive index layer comprises one of Si3N4, SiNx and SiOxNy, and
• further wherein the article exhibits a first-surface average photopic specular reflectance (% R) of less than 1% at any incident angle from about 5° to 20° from normal at wavelengths from 450 nm to 650 nm.