The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Feb. 16, 2005
Masayoshi Suzuki, Nei-gun, JP;
Kazuyoshi Hosaka, Nei-gun, JP;
Mariko Shudo, Funabashi, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
There is provided a color resist composition comprising a resin (A), a photoacid generator or a photobase generator (B), a crosslinking compound (C) and a dye mixture (D) containing a dye having a structure of amino sulfonate ester or ammonium sulfonate salt in a proportion of 40 to 95% by weight on total dye content. Preferably, resin (A) is polyvinyl phenol or a copolymer thereof, and the color resist composition has an optical quality having at least a region with a transmittance of 70% or more and a region with a transmittance of 10% or less in wavelength range between 400 nm and 700 nm, and in which a variation in transmittance is 5% or less even when the composition is subjected to a temperature of 200° C. or more. The color resist composition is applicable for color filters which exhibits a high spectrum reproducibility, a high light-resistance and a heat-resistance, and has a high resolution of 5 μm or less and no post development residue.