There is provided an EL device sealing plate for which a drop in transparency
is suppressed. An organic EL device 200 is comprised of a substrate 10,
an organic EL layered body 20 that is formed on the substrate 10,
and a sealing plate 30 that has been formed into a recessed shape so as
to cover the organic EL layered body 20. The sealing plate 30 exhibits
a parallel transmittance of not less than 91.5% and a haze of not more than 0.5%.
