Compact Display Using Diffractive Waveguide for Extended Pixel Resolution

The patent replaces the mechanical moving plate system with a fixed waveguide-based optical system. Instead of physically moving a glass plate to shift pixel positions, the invention uses diffractive optical elements and total internal reflection within a compact waveguide to achieve the same pixel-shifting effect, thereby eliminating the need for bulky mechanical actuators and large optical components.

The patent introduces a waveguide dimension that allows light to propagate through a confined path with multiple reflections. By utilizing the waveguide's internal reflection geometry and diffractive elements positioned at specific locations along the waveguide, the system achieves extended pixel resolution without requiring large lateral movements or bulky optical assemblies.

The patent eliminates mechanical actuators by using a fixed waveguide structure with diffractive optical elements. The pixel-shifting function is achieved through the interaction of light with the diffractive patterns and total internal reflection within the waveguide, replacing the need for mechanical movement with a static optical system.

The waveguide structure inherently provides the pixel-shifting function through its geometric design and diffractive elements. The system uses the light's own propagation path and reflection geometry to achieve the desired pixel displacement, without requiring external mechanical actuation or control systems.