Color filter and liquid crystal display device having the same
AssigneeToppan Printing Co., Ltd.
InventorsHiromitsu Ito, Hidesato Hagiwara, Tadashi Hosono, Mizuhiro Tani
Life of this patent
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Abstract
A color filter includes a plurality of colored layers which are arranged adjacently to each other and have different spectroscopic properties. At least one colored layer contains a dye chemically bonded to a polymer chain.
Claims2
A color filter, comprising a plurality of colored layers which are arranged adjacently to each other and have different spectroscopic properties, wherein at least one of said plural colored layers is obtained by blending a polyfunctional monomer and a photoinitiator with a copolymer of a polymerizable dye and other polymerizable monomer to provide a photosensitive colored composition, which is then applied on a transparent substrate, and photopolymerizing said polyfunctional monomer, said copolymer having been previously made by copolymerizing said dye and said other monomer, said polymerizable dye based on a triphenylmethane dye and said other monomer selected from the group consisting of a styrene compound, a unsaturated carboxylic acid, an ester thereof, an amide thereof, an anhydride thereof, and a vinyl compound, and wherein said composition further contains a soluble polymer.
Dependencies are inferred from the claim text.