Color filter element with improved colorant dispersion

1. A color filter for an electronic display device having a green color filter layer comprising a fluorinated phthalocyanine pigment having a maximum absorbance between 600-700 nm and at least one second pigment with a maximum absorbance between 400-500 nm and having a transmittance of 60% or more at a wavelength of 520 nm, of no more than 10% at a wavelength of 590 nm, and of no more than 10% at a wavelength of 480 nm, wherein the fluorinated phthalocyanine pigment is according to Formula (I):

M is aluminum;

R consists of one of fluorine, a perfluoroalkyl or a perfluoroaryl group;

z is 1 to 4;

L is a bridging ligand chosen from —O, —O—Si(R 1 ) 2 —O—Si(R 1 ) 2 —O— or, —O—Si(R 1 ) 2 —R 1 —Si(R 1 ) 2 —O— where R 1 is alkyl or phenyl; and

n is 1 such that the overall charge on the molecular unit is neutral, and

wherein at least 85 volume percent of the fluorinated phthalocyanine pigment has a particle size less than 2750 nm.

2. The color filter of claim 1 where z is 1.

3. The color filter of claim 1 where R is fluoro.

4. The green color filter of claim 1 wherein the second pigment is a monoazo pigment.

5. The green color filter of claim 4 wherein the second pigment is Pigment Yellow 185.

6. The color filter of claim 1 wherein the filter layer comprises a fluorinated phthalocyanine pigment wherein at least 80 volume percent of the pigment particles have a particle size less than 100 nm.

7. The color filter of claim 1 wherein the pigment particles of the fluorinated phthalocyanine are produced using non-aqueous organic solvents.

8. The green color filter of claim 1 wherein the green filter layer has chromaticity coordinates (x,y) in the 1931 CIE XYZ colorimetric system, calculated using CIE Standard Illuminant C, that satisfies the expressions 0.19≦x≦0.21 and 0.69≦y≦0.71.

9. The green color filter of claim 8 that has greater % luminance at the same chromaticity coordinates than a green color filter prepared in identical manner using the analogous non-fluorinated phthalocyanine pigment.

10. An electronic display device comprising the color filter of claim 1 .

11. The display device of claim 10 wherein the display device is an OLED device.

12. A color filter having a filter layer comprising only one fluorinated aluminum phthalocyanine pigment with a bridging ligand having a maximum absorbance between 600-700 nm and at least one second pigment with a maximum absorbance between 400-500 nm and having a transmittance of 60% or more at a wavelength of 520 nm, of no more than 10% at a wavelength of 590 nm, and of no more than 10% at a wavelength of 480 nm, wherein the fluorinated phthalocyanine is a phthalocyanine group that is substituted directly by either fluorine or by perfluorinated groups.