Near-eye display with a triple-channel waveguide for metaverse

We present a near-eye display featuring a triple-channel waveguide with chiral liquid crystal gratings. Our triple-channel waveguide is capable of dividing one field of view into three through both the polarization orthogonality and angular separation. To illustrate its principle, a k-space diagram, which takes into account the aspect ratio of field of view, is depicted. Our results demonstrate that its diagonal field of view reaches 90 degrees, eye relief is 10 mm, exit pupil is 4.9 x 4.9 mm(2), transmittance is 4.9%, and uniformity is 89%. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Automated summary

This article presents a near-eye display with a triple-channel waveguide and chiral liquid crystal gratings. The waveguide divides the field of view into three parts using polarization orthogonality and angular separation. Experimental results show that the display has a diagonal field of view of 90 degrees, eye relief of 10 mm, transmittance of 4.9%, and uniformity of 89%.