A display apparatus includes an emissive screen having luminescent pixels
that are addressed solely by a laser addressing system. Each pixel
includes a luminescent region located next to a photocathode. When struck
by the laser beam, free electrons are created that are accelerated by an
applied high voltage field from the photocathode to the luminescent
region, thereby causing the luminescent region to emit visible light with
a brightness (energy) that is substantially higher than the energy of the
addressing beam. Apertures are optionally provided in hexagonal
luminescent regions to relax beam-scanning requirements. Optional
millichannel plates (crude versions of 2.sup.nd generation night vision
system Microchannel plates) are provided to enhance photon
multiplication. A position sensitive device is implemented using the
photocathode or photoanode (luminescent) material to facilitate the
scanning and modulating process. Ambient light is prevented from
generating unwanted pixel activation by filter coatings, spatial
filtering or electronic filtering.