The present specification relates to a compound represented by Chemical Formula 1, a photoresist fluorescent resin composition including the same, and a color conversion film manufactured using the same, a backlight unit and a display apparatus.

The present specification relates to a compound represented by Chemical Formula 1, a photoresist fluorescent resin composition including the same, and a color conversion film manufactured using the same, a backlight unit and a display apparatus.

The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

A color converter may include a polymeric matrix material and at least one organic fluorescent colorant of formula I.a, I.b, and/or I.c

##STR00001##

wherein R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7 are H, C.sub.1-C.sub.20-alkyl or C.sub.6-C.sub.14-aryl-C.sub.1-C.sub.10-alkylene; R.sup.4a, R.sup.4b are fluorine, chlorine, cyano or OR.sup.10, R.sup.8a, R.sup.8b are C.sub.1-C.sub.20-alkyl; R.sup.8c is C.sub.1-C.sub.20-alkyl, C.sub.6-C.sub.10-aryl or C.sub.6-C.sub.10-aryl-C.sub.1-C.sub.10-alkylene, wherein the aryl moieties being optionally substituted by k substituents R.sup.9; k is 1, 2, 3, 4, 5 or 6; R.sup.9 is C.sub.1-C.sub.10-alkyl, C.sub.1-C.sub.10-alkoxy, CN, halogen, phenyl or phenoxy; and R.sup.10 is C.sub.1-C.sub.10-alkyl or hydroxy-C.sub.1-C.sub.10-alkyl. Backlight units for liquid crystal displays; liquid crystal display devices, and a self-emissive display devices may include this color converter and such colorant.

Disclosed herein are a series of compounds based on Formula (I). These compounds comprise perylene core which has been extended with optionally functionalised imidazoles at the 3,4;9,10 positions. The compounds of Formula (I) can be functionalised at two positions on the perylene core, such as the 1,6 or 1,7 positions. Also disclosed herein are compositions comprising said compounds, methods of forming said compounds and potential applications of said compounds, such as applying the compounds as a dye whose absorbance and fluorescence spectrum are red-shifted.

Disclosed herein are a series of compounds based on Formula (I). These compounds comprise perylene core which has been extended with optionally functionalised imidazoles at the 3,4;9,10 positions. The compounds of Formula (I) can be functionalised at two positions on the perylene core, such as the 1,6 or 1,7 positions. Also disclosed herein are compositions comprising said compounds, methods of forming said compounds and potential applications of said compounds, such as applying the compounds as a dye whose absorbance and fluorescence spectrum are red-shifted.

The present invention relates to a solid solution comprising (a) at least one compound according to formula (I) and (b) at least one compound according to formula (II), or at least one compound according to formula (III), or a mixture of at least one compound according to formula (II) and at least one compound according to formula (III) wherein R.sub.1 and R.sub.2 may, independently of one another, stand for (CH.sub.2).sub.nX, wherein X stands for hydrogen, methyl, a C.sub.1-C.sub.5 alkoxyl, hydroxy, phenyl, C.sub.1-C.sub.5 alkylphenyl, C.sub.1-C.sub.5 alkoxyphenyl, hydroxyphenyl, halogenated phenyl, pyridyl, C.sub.1-C.sub.5 alkylpyridyl, C.sub.1-C.sub.5 alkoxypyridyl, halogenated pyridyl, pyridylvinyl or naphthyl; wherein n stands for 0, 1, 2, 3, 4 or 5; R.sub.3 and R.sub.4 may, independently of one another, stand for phenylene, C.sub.1-C.sub.5 alkylphenylene, C.sub.1-C.sub.5 alkoxyphenylene, hydroxyphenylene, halogenated phenylene, pyridinediyl, C.sub.1-C.sub.5 alkylpyridinediyl, C.sub.1-C.sub.5 alkoxy-pyridinediyl, halogenated pyridinediyl, anthraquinonediyl or naphthalenediyl, wherein the 2 nitrogen atoms bound to R.sub.4 according to formula (II) and (III) form a 5-membered or a 6-membered heterocycle with 2 atoms of an aromatic ring of R.sub.3; wherein the 2 nitrogen atoms bound to R.sub.4 according to formula (II) and (III) form a 5-membered or a 6-membered heterocycle with 2 atoms of an aromatic ring of R.sub.4; X.sub.1 to X.sub.8 may, independently from one another, stand for hydrogen, C.sub.1-C.sub.5 alkyl, C.sub.1-C.sub.5 alkoxy, hydroxy, phenyl or halide. The present invention further relates to a process for producing the solid solution. Furthermore, the present invention relates to a solid solution obtainable or obtained according to said process and to the use of the inventive solid solution, in particular as a NIR transparent black colorant in a NIR non-absorbing component.

##STR00001##