A novel emissive display assembly incorporates a photo-switchable polarizer that is switchable between an active, polarizing, state and an inactive, non-polarizing, state depending on the predetermined level of intensity of UV light in the ambient light and enhance the viewable quality of the emissive display by minimizing or eliminating UV light reflection on the emissive display.

A novel emissive display assembly incorporates a photo-switchable polarizer that is switchable between an active, polarizing, state and an inactive, non-polarizing, state depending on the predetermined level of intensity of UV light in the ambient light and enhance the viewable quality of the emissive display by minimizing or eliminating UV light reflection on the emissive display.

The present invention aims to provide a polymerizable compound that has high storage stability without causing crystal precipitation when added to a polymerizable composition and to provide a polymerizable composition containing the polymerizable compound. A polymer film produced by polymerization of the polymerizable composition has a low haze, high thickness uniformity, low occurrence of nonuniform orientation, high surface hardness, high adhesiveness, and good appearances and fewer orientation defects even after ultraviolet irradiation. The present invention also aims to provide a polymer produced by polymerization of the polymerizable composition and an optically anisotropic body produced from the polymer.

The present invention aims to provide a polymerizable compound that has high storage stability without causing crystal precipitation when added to a polymerizable composition and to provide a polymerizable composition containing the polymerizable compound. A polymer film produced by polymerization of the polymerizable composition has a low haze, high thickness uniformity, low occurrence of nonuniform orientation, high surface hardness, high adhesiveness, and good appearances and fewer orientation defects even after ultraviolet irradiation. The present invention also aims to provide a polymer produced by polymerization of the polymerizable composition and an optically anisotropic body produced from the polymer.

A composite organic compound characterized by polarizability and resistivity that has a general structural formula: where C is a chromophore fragment, P is an optionally connected rylene fragment, D and A are electron donating and accepting groups respectively, and R represents resistive substituents optionally connected directly or via dopant connecting groups.

An azobenzene derivative, a preparation method of the azobenzene derivative, an azophenyl light control reversible adhesive, and a method of using the azophenyl light control reversible adhesive are disclosed. The azobenzene derivative has a molecular structure as P1 or P2. In the abovementioned preparation method, the azobenzene derivative P1 or P2 is obtained from an esterification reaction of an azophenyl group, 3,4,5-tripentyloxybenzoic acid or 3,4,5-tri(dodecyloxy)benzoic acid, and 2,2′-dihydroxy-1,1′-binaphthol. The melting point of the azobenzene derivative P1 or P2 is modified commonly by alkyl chains and binaphthol to be slightly higher than room temperature.

An azobenzene derivative, a preparation method of the azobenzene derivative, an azophenyl light control reversible adhesive, and a method of using the azophenyl light control reversible adhesive are disclosed. The azobenzene derivative has a molecular structure as P1 or P2. In the abovementioned preparation method, the azobenzene derivative P1 or P2 is obtained from an esterification reaction of an azophenyl group, 3,4,5-tripentyloxybenzoic acid or 3,4,5-tri(dodecyloxy)benzoic acid, and 2,2′-dihydroxy-1,1′-binaphthol. The melting point of the azobenzene derivative P1 or P2 is modified commonly by alkyl chains and binaphthol to be slightly higher than room temperature.

A compound having a maximum absorption in a wavelength range of 350 nm to 550 nm that functions as a dichroic dye is provided. In particular, a compound represented by formula (1) is provided. In the compound represented by formula (1), R.sup.1 represents a hydrogen atom or the like; R.sup.2 represents an acyl group having 1 to 20 carbon atoms or the like; R.sup.3 represents a hydrogen atom or the like; and Y represents a group of formula (Y1). In the group of formula (Y1), * represents a bonding site with N, or a group of formula (Y2); and in the group of formula (Y2), * represents a bonding site with N; P.sup.1 and P.sup.2 each independently represent —S— or the like; and Q.sup.1 and Q.sup.2 each independently represent ═N— or the like.

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According to one embodiment of the present invention, an azo polymer forms a complex with a lithium ion and a sodium ion among alkali metal ions, but does not form a complex with a potassium ion. Therefore, the azo polymer is expected to be utilized as a material for a sensor capable of selectively detecting a specific alkali metal ion, or as a novel material capable of selectively trapping a specific alkali metal ion from a solution in which metal ions are mixed.

According to one embodiment of the present invention, an azo polymer forms a complex with a lithium ion and a sodium ion among alkali metal ions, but does not form a complex with a potassium ion. Therefore, the azo polymer is expected to be utilized as a material for a sensor capable of selectively detecting a specific alkali metal ion, or as a novel material capable of selectively trapping a specific alkali metal ion from a solution in which metal ions are mixed.