Color filter array and organic light-emitting display device using the same

A color filter array adapted to receive a mixed light of blue light and red light to implement full color by emitting red light from a red pixel region, green light from a green pixel region and blue light from a blue pixel region, the color filter array comprising:

• a red filter comprising a first portion of a color conversion layer comprising a compound adapted to convert the blue light into green light and red light, and a green blocking material adapted to block the green light, wherein the first portion of the color conversion layer is situated over the red pixel region;
• a green filter comprising a second portion of the color conversion layer, and a first portion of a red blocking layer comprising a material adapted to block the red light, wherein the compound is selected from the group consisting of coumarin derivatives, Alq3, inorganic pigments with fluorescence, organic pigments with fluorescence, and combinations thereof, wherein the second portion of the color conversion layer is situated over the green pixel region;
• and
• a blue filter comprising a second portion of the red blocking layer comprising a material adapted to block the red light,
• wherein the first portion and the second portion of the color conversion layer consist essentially of the same material.

An organic light-emitting display device comprising:

• a substrate defining first and second opposing surfaces;
• a first electrode provided on the first surface of the substrate;
• an organic light-emitting layer provided on the first electrode and adapted to emit a mixed light of blue light and red light;
• a second electrode provided on the organic light-emitting layer;
• and
• a color filter array provided on at least one of the second electrode or the second surface of the substrate, the color filter array comprising:
• a red filter corresponding to a red pixel region, the red filter comprising a first portion of a color conversion layer comprising a compound adapted to convert the blue light emitted from the organic light-emitting layer into green light and red light, and a green blocking material adapted to block the green light, wherein the first portion is situated over the red pixel region;
• a green filter corresponding to a green pixel region, the green filter comprising a second portion of the color conversion layer;
• and a red blocking material adapted to block the red light, wherein the second portion is situated over the green pixel region;
• and
• a blue filter comprising a red blocking material adapted to block the red light emitted from the organic light-emitting layer,
• wherein the first portion and the second portion of the color conversion layer consist essentially of the same material.