Maxwellian-view display based on pinhole glasses of timing-polarizing characteristics

Abstract

Pinhole is often used in Vergence-Accommodation Conflict-free (VAC-free) Maxwellian-view display, benefiting from its constraint on the diverging angle of passing-through light beams. For a larger field of view (FOV) from a display screen, a pinhole-array is needed by each eye of the viewer, with their pinholes guiding light from different small-FOV sub-screen respectively. However, the crosstalk between adjacent pinholes keeps being a bottleneck problem in such pinhole-based Maxwellian-view display. In this paper, specially-designed timing and polarizing characteristics are endowed to the pinhole-arrays of the viewer's two pupils, to implement a low-crosstalk Maxwellian-view display. Experimentally, a proof-of-concept display system based on a 240 Hz display screen gets implemented through two 3 × 3 pinhole-arrays. A diagonal FOV of 55 degrees and 60 Hz display frequency are successfully realized. The resulted intensity ratio between the crosstalk noise light to the signal light is suppressed to 4.7%. Furthermore, the existence of failure zones is discussed.