Fig. 1. Schematic diagram of the reflective waveguide transmission of plate waveguide display system

Fig. 2. Principle of VHG irradiated with Bragg angle

Fig. 3. Variation curve of reflective VHG diffraction efficiency with thickness

Fig. 4. Recording and reproducing principle of the reflective VHG. (a) Recording process; (b) reproduction process

Fig. 5. Flow chart of preparing VHG based on DCG

Fig. 6. Recording optical path of double-beam asymmetric reflective interference

Fig. 7. Diffraction efficiency of the element under different dispensing volume

Fig. 8. Refractive index of the holographic plate

Fig. 9. Variation curve of diffraction efficiency with refractive index modulation

Fig. 10. Effect of processing technology on diffraction efficiency. (a) Underexposure; (b) improper water washing treatment; (c) improper processing flow; (d) grating element with light splitting effect

Fig. 11. Display phenomenon of the reflective WHG plate waveguide. (a) Diffraction angle; (b) waveguide phenomenon

Fig. 12. Principle of the waveguide phenomenon