Optical waveguide device for VR display

The invention discloses an optical waveguide device for VR (virtual reality) display, the optical waveguide device comprises a waveguide substrate and a plurality of grating areas, the grating areas are arranged on one side surface of the waveguide substrate, the grating areas comprise coupling-out areas, reflective gratings and/or transmission-type gratings are adopted in the grating areas, and when the reflective gratings are adopted in the grating areas, the transmission-type gratings and/or the reflection-type gratings are not adopted in the grating areas. A first reflection structure is at least arranged on the surface of the reflection type grating in the coupling-out area so as to prevent external environment light from entering the waveguide substrate from the reflection type grating; when the grating area adopts the transmission-type grating and the second reflection structure is at least arranged on the surface of the grating-free structure corresponding to the coupling-out area, the interference of