Perception of sparkle in anti-glare display screens

In this paper, we describe a series of psychophysical experiments to quantify the relationships between anti‐glare (AG) glass treatments and perceived sparkle in emissive displays. The experiments show the following: (1) that a new measure, pixel power deviation, correlates well with perceived sparkle; (2) that for a given AG treatment, sparkle is worse on high‐pitch displays; (3) that tests of sparkle using small samples provide a conservative bound on perceived sparkle in display‐sized samples; and (3) that sparkle visibility is affected by the content of displayed images. The goal of these efforts is to enable the development of AG glass treatments for emissive displays that effectively reduce front surface reflections while preserving high image quality.