36results about "Styryl-azo dyes" patented technology

The invention discloses a polarizing film, a laminate, and a liquid crystal display device. The polarizing film, satisfying Dl' / P'<=4.3X10-4 which expresses relation between degree of polarization P', and depolarization index Dl' calculated by the equation below is disclosed. X represents a value calculated by the equation below, provided that a polarizing plate having degree of polarization of P, the polarizing film, and a polarizing plate having degree of polarization P, having azimuths of transmission axes of a DEG, b DEG and c DEG, respectively, are stacked in this order as viewed from a flight source, to give brightness written as [a / b / c].

A photoelectric conversion device using a semiconductor fine material such as a semiconductor fine particle sensitized with a dye carried thereon, characterized in that the dye is a methine type dye having a specific partial structure, for example, a methine type dye having a specific carboxyl-substituted hetero ring on one side of a methine group and an aromatic residue substituted with a dialkylamino group or an organic metal complex residue on the other side of the methine group, or a methine type dye having a carboxyl-substituted aromatic ring on one side of a methine group and a heteroaromatic ring having a dialkylamino group or an organic metal complex residue on the otherside of the methine group; and a solar cell using the photoelectric conversion element. The photoelectric conversion element exhibits a conversion efficiency comparable or superior to that of a conventionally known photoelectric conversion element sensitized with a methine type dye.

To provide a polarizing element and a polarizing plate which have improved optical characteristics and durability. A polarizing element which is characterized by being formed of a stretched polyvinyl alcohol resin film that adsorbs, as a free acid, at least one dichroic dye that is a compound represented by formula (I) or a salt thereof and which is also characterized in that the polyvinyl alcohol resin has a polymerization degree of from 5,000 to 10,000. (In the formula, A represents a substituted phenyl group or a naphthyl group; each of R1-R6 independently represents a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a sulfo group or a lower alkoxy group having a sulfo group; X represents an optionally substituted amino group, an optionally substituted benzoylamino group, an optionally substituted phenylamino group, an optionally substituted phenylazo group or an optionally substituted naphthotriazole group; and m represents 0 or 1.)

The present invention provides a polarizing element and a polarizing plate having improved optical characteristics and durability. A polarizing element, characterized in that it is composed of a polyvinyl alcohol resin film, the polyvinyl alcohol resin film has a degree of polymerization of 5000 to 10000, and the polyvinyl alcohol resin film adsorbs a compound selected from formula (I) , its salt and at least one dichroic dye in its transition metal complex and stretched. (In the formula, A represents a nitro group or an amino group, R1 and R2 each independently represent a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a sulfo group or a lower alkoxy group with a sulfo group, and X represents whether it has Any one of benzamido with or without substituents, phenylamino with or without substituents, phenylazo with or without substituents, or naphthotriazolyl with or without substituents, the The substituent is lower alkyl, lower alkoxy, sulfo, amino or substituted amino.)