There is provided an organic light-emitting element comprising at least
one light-emitting layer between a pair of electrodes formed on a
substrate and at least two or more light emission center materials
included in the light-emitting layer, and that the at least one or more
light emission center materials include a phosphorescent light-emitting
material, and an excitation lifetime of the light emission center
material that emits light having a shortest wavelength is shorter than an
excitation lifetime of the other light emission center material, whereby
a high-efficiency organic light-emitting element without decreasing a
color purity of white light emission can be obtained.