US Patent 8004181 Organic light emitting diode display

An organic light emitting device according to an embodiment comprises: a substrate; a transflective member disposed on the substrate; a phase control member disposed on or under the transflective member; an organic light emitting member disposed on the phase control member; and a common electrode disposed on the organic light emitting member. A changing characteristic according to wavelength of an optical constant of the phase control member is opposite to a changing characteristic according to wavelength of an optical constant of the transflective member.