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US 12,091,553 B2Granted
Core-shell dye, near-infrared absorbing composition including the same, and near-infrared absorbing film
AssigneeSamsung SDI Co., Ltd.
InventorsInsub Shin, Gyuseok Han, Euisoo Jeong, Chaehyuk Ko, Baek Soung Park
Life of this patent
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Abstract
A core-shell dye, a near-infrared absorbing resin composition including the same, a near-infrared absorbing film, an optical filter, and a CMOS image sensor, the core-shell dye includes a core represented by Chemical Formula 1; and a shell surrounding the core, the shell being represented by Chemical Formula 2;
Claims29
A core-shell dye, comprising
- a core represented by Chemical Formula 1;
- and
- a shell surrounding the core, the shell being represented by Chemical Formula 2;
- wherein, in Chemical Formula 1;
- Y1 and Y3 are each independently ═CH—, or a nitrogen atom;
- Y2 and Y4 are each independently —CH2—, a sulfur atom, —NH—, or an oxygen atom;
- and
- R1 to R4 are each independently a substituted or unsubstituted C6 to C30 aryl group;
- wherein, in Chemical Formula 2,
- A1 and A2 are each independently a divalent substituted or unsubstituted C6 to C30 aromatic ring group;
- L1 and L2 are each independently a single bond or a substituted or unsubstituted C1 to C30 alkylene group;
- and
- a is an integer of 2 to 10.
10 more elements
Dependencies are inferred from the claim text.