A liquid-crystal projection device includes an organic electroluminescent element
that is sandwiched by an organic thin-film layer between an electrode layer that
reflects light and a transparent electrode layer that transmits light, and a transparent
liquid crystal panel that controls passage of light emitted from the surface of
the organic electroluminescent element and also includes a half-mirror layer arranged
on the side where light is output from the transparent electrode layer. Some of
the incoming light is reflected through the transparent electrode layer to another
electrode layer and the rest of the light is transmitted the distance between the
half-mirror layer. The electrode layer is set to the optical distance of resonance
of the light.
