Photosensitive compositions, preparation methods thereof, and quantum dot polymer composite pattern produced therefrom

A color filter comprising a substrate and a quantum dot-polymer composite pattern disposed on the substrate,

• wherein the quantum dot-polymer composite pattern comprises a first quantum dot polymer composite,
• wherein the first quantum dot polymer composite is configured to emit a first light and comprises a polymerization production of a first photosensitive composition comprising:
• a plurality of first quantum dots being configured to emit the first light;
• a photoinitiator system;
• and
• a photopolymerizable monomer comprising a carbon-carbon double bond,
• wherein the photoinitiator system comprises a first photoinitiator comprising an oxime compound and a second photoinitiator comprising a phosphine oxide compound, an amino ketone compound, or a combination thereof, and
• wherein the first photosensitive composition further comprises a reactive compound comprising at least two thiol groups and represented by Chemical Formula 2:
• wherein in Chemical Formula 2,
• R1 is selected from hydrogen;
• a substituted or unsubstituted C1 to C30 linear or branched alkyl group;
• a substituted or unsubstituted C6 to C30 aryl group;
• a substituted or unsubstituted C3 to C30 heteroaryl group;
• a substituted or unsubstituted C3 to C30 cycloalkyl group;
• a substituted or unsubstituted C3 to C30 heterocycloalkyl group;
• a C1 to C10 alkoxy group;
• a hydroxy group;
• —NH2;
• a substituted or unsubstituted C1 to C30 amine group (—NRR′, wherein R and R′ are each independently hydrogen or a C1 to C30 linear or branched alkyl group);
• an isocyanate group;
• a halogen;
• —ROR′ (wherein R is a substituted or unsubstituted C1 to C20 alkylene group and R′ is hydrogen or a C1 to C20 linear or branched alkyl group);
• acyl halide (—RC(═O)X, wherein R is a substituted or unsubstituted alkylene group and X is a halogen);
• —C(═O)OR′ (wherein R′ is hydrogen or a C1 to C20 linear or branched alkyl group);
• —CN;
• or —C(═O)ONRR′ (wherein R and R′ are each independently hydrogen or a C1 to C20 linear or branched alkyl group),
• L1 is a carbon atom, a substituted or unsubstituted C1 to C30 alkylene group, a substituted or unsubstituted C6 to C30 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, or a substituted or unsubstituted C6 to C30 heteroarylene group, wherein at least one of non-adjacent methylene (—CH2-) groups of the substituted C1 to C30 alkylene group is replaced by a sulfonyl group (—SO2—), a carbonyl group (—CO—), an ether group (—O—), a sulfide group (—S—), a sulfoxide group (—SO—), an ester group (—C(═O)O—), an amide group (—C(═O)NR—) (wherein R is hydrogen or a C1 to C10 alkyl group), or a combination thereof,
• Y1 is a single bond;
• a substituted or unsubstituted C1 to C30 alkylene group;
• a substituted or unsubstituted C2 to C30 alkenylene group;
• a substituted C1 to C30 alkylene group or a C2 to C30 alkenylene group wherein at least one methylene (—CH2-) group is replaced by a sulfonyl group (—S(═O)2—), a carbonyl group (—C(═O)—), an ether group (—O—), a sulfide group (—S—), a sulfoxide group (—S(═O)—), an ester group (—C(═O)O—), an amide group (—C(═O)NR—) (wherein R is hydrogen or a C1 to C10 linear or branched alkyl group), an imine group (—NR—) (wherein R is hydrogen or a C1 to C10 linear or branched alkyl group) or a combination thereof,
• m is an integer of 1 or more,
• k1 is 0 or an integer of 1 or more,
• k2 is an integer of 1 or more, and
• a sum of m and k2 is an integer of 3 or more,
• provided that when Y1 is not a single bond, m does not exceed the valence of Y1, and provided that a sum of k1 and k2 does not exceed the valence of L1,
• wherein a weight ratio of the first photoinitiator and the second photoinitiator is about 1:1 to 1:0.1;
• wherein an amount of the first quantum dots is greater than or equal to about 10 weight % and an amount of the reactive compound is greater than 10 weight % and less than or equal to about 40 weight %, based on a total weight of the first photosensitive composition.