Light field near eye displays (LFNED) can produce lightweight devices and address the accommodation-convergence conflict. However, low spatial resolution creates a poor immersive experience in LFNED. In addition, although many e-shifting devices have been proposed to enhance resolution in projection system, yet those devices are too bulky to be applied in an LFNED to keep it lightweight. In this paper, a compact e-shifting component is proposed to enhance image resolution in an LFNED by using a birefringent plate and twisted nematic switch cell. The proposed e-shifting device is a flat and thin component with only 2.6 mm of thickness, which could be placed in the gap of an LFNED without increasing the thickness. The results show that the proposed components could be easily integrated in an LFNED with the result of resolution enhancement.

In this paper, we present a fully-customized AR display design that considers the user's prescription, interpupillary distance, and taste of fashion. A free-form image combiner embedded inside the prescription lens provides augmented images onto the vision-corrected real world. We establish a prescription-embedded AR display optical design method as well as the customization method for individual users. Our design can cover myopia, hyperopia, astigmatism, and presbyopia, and allows the eye-contact interaction with privacy protection. A 169g dynamic prototype showed a 40 • × 20 • virtual image with a 23 cpd resolution at center field and 6 mm × 4 mm eye box, with the vision-correction and varifocal (0.5-3m) capability.

In a 3D near-eye light field display using microlens array-based integral imaging, the accommodation response is presumed to exactly coincide with the reconstructed depth plane (RDP) which, however, has been little examined. By employing a highly accurate image formation model to analyze retinal images, the accommodation response is revealed to significantly shift towards the central depth plane (CDP) because of defocusing. The shift is quantitatively characterized for various CDPs and RDPs with a preliminary verifying experiment to provide content producers an approach to address the accommodation shift to fully mitigate the vergence-accommodation conflict.

Light field near‐to‐eye display (LFNED) achieves lightweight device and solves accommodation‐convergence conflict. However, low spatial resolution of LFNED brings users bad immersive experience. In this paper, the new method proposed using birefringent plate to enhance image resolution. In results, our method apparently improves resolution in LFNED.

The accommodation response in a microlens array-based neareye light field display is found to considerably shift towards the central depth plane but not at the reconstructed depth plane due to defocusing of the lens array. The shifts are characterized and can be fully addressed by compensating in a binocular system.