A display system includes a subpixelated display panel having subpixels in
two saturated primary colors. In one embodiment, the primary colors are
selected so as to be a substantially metameric pair for an achromatic
color such as white. Information display efficiencies arise from
utilizing a checkerboard arrangement for the two primary colored
subpixels and from using subpixel rendering algorithms to render an image
on the display. The bichromatic display may display a black and white
image combined with a monochromatic image, or may provide the capability
to overlay a first image from a first image source carried on a chromatic
channel onto a second image from a second image source carried on a
luminance channel, where the first image source detects light wavelengths
that the Human Vision System is not sensitive to, such as infrared light.
This latter embodiment of the bichromatic display system is suitable for
night vision devices.