Patent attributes
An organic electroluminescence cell including at least one organic layer and a pair of electrodes, the organic layer including a light-emitting layer and sandwiched between the pair of electrodes, the pair of electrodes including a reflective electrode and a transparent electrode, the organic electroluminescence cell formed to satisfy the expression: B0<Bθ in which B0 is a frontal luminance value of luminescence radiated from a light extraction surface to an observer, and Bθ is a luminance value of the luminescence at an angle of from 50° to 70°, wherein a reflection/refraction angle disturbance region is provided so that the angle of reflection/refraction of the luminescence is disturbed while the luminescence is output from the light-emitting layer to the observer side through the transparent electrode.
