Black curable composition, light-shielding color filter for a solid-state imaging device and method of producing the same, solid-state imaging device, wafer level lens, and camera module
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United States of America Patent
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Sep 9, 2014
Grant Date -
Jan 31, 2013
app pub date -
Mar 24, 2011
filing date -
Mar 25, 2010
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Abstract
A black curable composition for forming a light-shielding color filter of solid-state imaging device is provided, which is capable of forming a pattern at low exposure dose even when containing a high concentration of an inorganic pigment, and preventing pattern defects. Also, a black curable composition for a wafer level lens is provided, which is capable of forming a cured film having excellent light shieldability and excellent in co-formability of both a large pattern and a fine pattern. The composition includes: an inorganic pigment; a copolymer containing a monomer having at least one of an amino group and a nitrogen-containing heterocyclic group, a monomer having at least one group of a carboxyl group, a phosphate group and a sulfonate group, and a macromonomer having a weight average molecular weight from 1,000 to 50,000; a polymerization initiator; a polymerizable compound; and an alkali-soluble resin having an unsaturated double bond.
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