Measuring and characterizing the diffractive component in display reflection

Abstract We present and validate an easy‐to‐setup approach to measure the reflection properties of displays. It is based on a wide field of view conoscopic lens in conjunction with an orientation detection algorithm. Using this approach, we can measure not only the specular, haze, and Lambertian components of display reflection but also the diffractive component. We then investigate the fundamental dependencies of this fourth reflection component through a series of measurements using a variable aperture source and an LC and OLED display. Through these experiments, we can show that the diffractive component scales linearly with the light source's luminance and depends on the angular subtense of the light source.