The projection display includes a light projector unit for generating and
projecting light, an oscillator unit for oscillating light projected from
the light projector unit, and a frequency generation and modulation unit.
The frequency generation and modulation unit drives the oscillator unit
and modulates the light projected by the light projector unit. In turn,
the oscillator unit oscillates the light projected by the light projector
unit in two dimensions, so that the projected light scans an incident
surface in a raster pattern. At the same time, the frequency generation
and modulation unit modulates the light produced by the light projector
unit in synchronization with the scanning process and image data supplied
so that the projected light produces images corresponding to the image
data over a scanned area.
