Abstract
The angular resolution of current near-eye display devices is still far below human-eye acuity. How to achieve retina-level resolution while keeping wide field-of-view (FOV) remains a great challenge. In this work, we demonstrate a multi-resolution foveated display with two display panels and an optical combiner. The first display panel provides a wide FOV but relatively low resolution for the surrounding region, while the second one offers an ultra-high resolution for the central fovea region, by an optical minifying system which enhances the effective resolution by 5 ×. In addition, a switchable Pancharatnam-Berry phase deflector is employed to shift the high-resolution region. The proposed design effectively reduces the pixelation and screen-door effect in near-eye displays.
Highlights
Head-mounted displays have attracted a great deal of interest due to its potentially wide applications in gaming, education, training and medical care [1,2]
While the visual experience delivered by current augmented reality (AR) and virtual reality (VR) devices is still below what we can perceive in the real world [3]
There exists a trade-off between high angular resolution and wide field of view, as Fig. 1 depicts
Summary
Head-mounted displays have attracted a great deal of interest due to its potentially wide applications in gaming, education, training and medical care [1,2]. “A 3D integral imaging optical see-through head-mounted display,” Opt. Express 22(11), 13484–13491 (2014). T. Wu, “Enhancing the resolution of a near-eye display with a Pancharatnam-Berry phase deflector,” Opt. Lett.
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