Full color organic light-emitting display device

This invention relates to an organic light-emitting display (OLED) device comprising a substrate, a first electrode layer (cathode) mounted on one side of the substrate, a second electrode layer (anode) sandwiched between the substrate and the first electrode layer (cathode), at least one organic electroluminescent layer sandwiched between the first electrode layer (cathode) and the second electrode layer (anode), a color conversion layer of fluorescent powder sandwiched between the substrate and the second electrode layer (anode), and at least one filter layer sandwiched between the color conversion layer of fluorescent powder and the substrate; wherein said organic electroluminescent layer emits light in a wavelength bandwidth of blue light, and said color conversion layer of fluorescent power converts the light emitted from said organic electroluminescent layer into green, red or blue light. Also, the present invention relates to a process for fabricating the OLED device.