Color correction filter for white organic electroluminescent light source, and organic electroluminescent display device

1. A color correction filter for a white organic electroluminescent light source, the color correction filter comprising:

a resin; and

0.1 parts by mass or more of a squarine-based coloring agent represented by Formula (1) and having an absorption maximum wavelength in a range of 560 to 620 nm or 460 to 520 nm with respect to 100 parts by mass of the resin,

wherein the coloring agent is in a form of a coloring agent containing a polarization degree improver having a coloring agent portion and a polarization degree improver portion;

wherein the polarization degree improver portion is selected from an electron donating type quencher portion or an electron accepting type quencher portion;

wherein an energy level of a HOMO of the coloring agent portion and an energy level of a HOMO of the electron donating type quencher portion satisfy Relational Expression [A-1] below,

E Hq −E Hd ≤0.40 eV,  Relational Expression [A-1]:

where E Hd and E Hq respectively represent the following values,

E Hd : energy level of HOMO of coloring agent portion, and

E Hq : energy level of HOMO of electron donating type quencher portion;

wherein an energy level of a LUMO of the coloring agent portion and an energy level of a LUMO of the electron accepting type quencher portion satisfy Relational Expression [B-1] below,

E Ld −E Lq ≤0 eV,  Relational Expression [B-1]:

where E Ld and E Lq respectively represent the following values,

E Ld : energy level of LUMO of coloring agent portion, and

E Lq : energy level of LUMO of electron accepting type quencher portion; and

wherein the filter has a moisture content of 0.5% by mass or less,

in Formula (1), A and B each independently represent an aryl group which may have a substituent, a heterocyclic group which may have a substituent, or —CH=G, and G represents a heterocyclic group which may have a substituent.

2. The color correction filter for a white organic electroluminescent light source according to claim 1 ,

wherein the resin satisfies Relational Expression [C] below,

0.80 ≤fd≤ 0.95  Relational Expression [C]:

where the fd value is defined by Relational Expression I below,

fd=δd /(δ d+δp+δh ),  Relational Expression I:

in Relational Expression I, δd, δp, and δh respectively indicate a term corresponding to a London dispersion force, a term corresponding to a dipole-dipole force, and a term corresponding to a hydrogen bonding force with respect to a solubility parameter δt calculated by a Hoy method.

3. The color correction filter for a white organic electroluminescent light source according to claim 1 ,

wherein the resin contains a polystyrene resin.

4. The color correction filter for a white organic electroluminescent light source according to claim 1 ,

wherein the resin contains a cyclic polyolefin resin.

5. An organic electroluminescent display device comprising:

the color correction filter for a white organic electroluminescent light source according to claim 1 .