In the present invention, an electron injection composition for a
light-emitting element, comprising a benzoxazole derivative represented
by general formula 1 and at least one of an alkali metal, an alkali earth
metal, and a transition metal, is used to form an electron injection
layer in a portion of a layer including luminescent material in a
light-emitting element, and it is an object of the present invention to
provide, by using the composition, a light-emitting element that has more
superior characteristics and a longer lifetime as compared to
conventional ones. ##STR00001## wherein Ar represents an aryl group, and
each of R.sub.1 to R.sub.4 represents hydrogen, halogen, a cyano group,
an alkyl group having 1 to 10 carbon atoms, a haloalkyl group having 1 to
10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, a
substituted or unsubstituted aryl group, or a substituted or
unsubstituted heterocyclic group.