Modern XR devices can achieve high frame rate, high resolution, wide color gamut, and brighter displays in order to achieve perceptual realism. However, these requirements lead to significant challenges in terms of battery life, with current commercial devices only lasting up to 3 hours on a single charge. Many techniques have been proposed to modulate rendered pixel intensities in order to save display power, but it is unclear how these techniques impact image quality. In this talk, I will describe several techniques for display power reduction, including traditional techniques as well as methods which target wide field of view, stereoscopic displays, and present results from psychophysical studies which can motivate the use of certain algorithms for specific display types.
