A light modulating device includes: a first substrate on which a first
electrode layer and a light amount control layer are deposited in this
order; a second substrate on which a second electrode layer and a color
filter layer are deposited in this order, the second substrate opposing
the first substrate; and a third electrode layer interposed between the
light amount control layer and the color filter layer, wherein a plurality
of picture elements are defined in a matrix pattern by the first electrode
layer and the third electrode layer. An amount of light transmitted
through the light amount control layer is electrically controlled by the
first electrode layer and the third electrode layer. A colored/uncolored
state of the color filter layer is electrically controlled by the second
electrode layer and the third electrode layer.