Electronic Device with a Display Cover Layer

An electronic device, comprising:

• a glass layer;
• and
• display pixels that emit light through the glass layer, wherein the glass layer has an upper surface with a first plurality of surface features each having a respective aspect ratio that is less than 2:1 and a second plurality of surface features each having a respective aspect ratio that is greater than 4:1.

A transparent layer having first and second opposing sides, the transparent layer comprising:

• a first plurality of protrusions on the first side, wherein each one of the first plurality of protrusions has a respective height that is less than 200 nanometers;
• and
• a second plurality of protrusions on the first side, wherein each one of the second plurality of protrusions has a respective height that is between 200 nanometers and 1 micron.