ORGANIC LIGHT EMITTING DISPLAY DEVICE

Provided is an organic light emitting display device (1000) which disposes an optical multilayer film on an organic light emitting diode to reduce color shift depending on a viewing angle and improve efficiency of the organic light emitting diode. The organic light emitting display device (1000) according to an exemplary embodiment of the present disclosure includes an organic light emitting element (100) including a cathode (103), an anode (101), and an organic light emitting layer (102), and an optical multilayer film (120) on the organic light emitting element (100). The optical multilayer film (120) is constructed such that a full width at half maximum of light emitted from the organic light emitting element (100) is larger than a full width at half maximum of light emitted from a structure in which the optical multilayer film (120) is not used. Therefore, the color shift depending on a viewing angle of the organic light emitting display device (1000) is reduced to improve efficiency of the organic light emitting element (100).