An organic light-emitting device (OLED) comprising an organic active region which emits electromagnetic radiation, a conversion material which converts a portion of the radiation into light of a certain spectral range, and a filter material which transmits said light.
1. An organic light-emitting device (OLED) comprising:
an organic active region which emits electromagnetic radiation, wherein the organic region comprises a white-light emitting organic material, said organic material comprising a polymer which emits radiation in the blue spectral range, wherein blue, red and green-emitting chromophors are covalently bonded to the blue emitting polymer,
a conversion material which converts a portion of the radiation into light of a certain spectral range; and
a filter material which transmits said light.
2. The OLED device according to claim 1 , in which said light is light of the red spectral range.
3. The OLED device according to claim 2 , in which said portion of radiation is light of the blue spectral range.
4. The OLED device according to claim 2 , in which said portion of radiation is light of the green spectral range.
5. The OLED device according to claim 1 , in which said light is light of the green spectral range.
6. The OLED device according to claim 5 , in which said portion of radiation is light of the blue spectral range.
7. The OLED device according to claim 1 , comprising a plurality of pixels.
8. The OLED device according to claim 7 in which each pixel comprises at least two sub-pixels.
9. The OLED device according to claim 8 , in which at least one of said sub-pixels emits light of the red spectral range.
10. The OLED device according to claim 8 in which at least one of said sub-pixels emits light of the green spectral range.
11. The OLED device according to claim 8 , in which at least one of said sub-pixels emits light of the blue spectral range.
12. The OLED device according to claim 8 in which each sub-pixel comprises:
a substrate;
a first electrode formed over the substrate;
the organic active region formed over the first electrode; and
a second electrode formed over the organic region.
13. The OLED device according to claim 12 in which the converter material is located between said substrate and said first electrode.
14. The OLED device according to claim 12 in which the filter material is located between said substrate and said first electrode.
15. The OLED device according to claim 13 , in which the filter material is located between said substrate and said converter material.
16. The OLED device according to claim 12 , in which the converter material is formed over the second electrode.
17. The OLED device according to claim 12 , in which the filter material is formed over the second electrode.
18. The OLED device according to claim 16 in which the filter material is formed over the converter material.
19. The OLED device according to claim 12 wherein the converter material and the filter material are mixed to form a combined filter/converter region.
20. The OLED device according to claim 19 , in which the matrix material is located between said substrate and said first electrode.
21. The OLED device according to claim 19 , in which the matrix material is formed over the second electrode.
22. The OLED device according to claim 12 in which each sub-pixel comprises a switching element.
23. The OLED device according to claim 22 in which the switching element comprises a thin film transistor.
24. The OLED device according to claim 1 , wherein the converter material and the filter material are mixed to form a combined filter/converter region.