A cover member is adhered onto a substrate on which an EL element is
formed with a filler as an adhesive. Further, a sealing member is
provided so as to cover a side surface (an exposing surface) of the
filler, and a frame member is adhered using the sealing member. With this
structure, the EL element is completely sealed by the filler, and shut
from moisture and the like from the outside. Thus, deterioration of an EL
layer due to oxidization can be prevented.