Providing a particle distributed electroluminescent device which is
improved in luminescent color control, prevention of luminescent color
change over time and heavy circuit load, and/or representation of a
delicate gradation sequence, as well as capable of providing high
brightness and luminous efficiency, and a display unit using such an
electroluminescence device. Two types of luminescent particles, each
having a dielectric core and a fluorescent coating layer are used as
luminescent particles distributed in a luminescent layer of a particle
distributed electroluminescence device. The dielectric cores of the two
types of luminescent particles are formed of dielectric materials having
different dielectric constants with each other.