A polyimide film and a flexible display device cover substrate using the same are provided, and the polyimide film includes a polyimide and a blue infrared absorbing agent. The blue infrared absorbing agent includes cesium tungsten oxide, tungsten oxide, Prussian blue, or antimony tin oxide. The blue infrared absorbing agent has infrared absorbing and photothermal conversion effects, and the surface temperature of the polyimide resin may be increased by infrared irradiation, so as to shorten the baking time.

An aspect of the present invention is a resin composition comprising: an acrylic resin; and a curing agent, wherein the acrylic resin is a resin obtained by polymerizing monomer components comprising a first monomer represented by the following formula (1): ##STR00001##
wherein R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents an alkyl group having 12 to 30 carbon atoms, and a second monomer copolymerizable with the first monomer and having a reactive group capable of reacting with the curing agent.

An aspect of the present invention is a resin composition comprising: an acrylic resin; and a curing agent, wherein the acrylic resin is a resin obtained by polymerizing monomer components comprising a first monomer represented by the following formula (1): ##STR00001##
wherein R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents an alkyl group having 12 to 30 carbon atoms, and a second monomer copolymerizable with the first monomer and having a reactive group capable of reacting with the curing agent.

Provided are a curable composition including a pigment, a resin having a structural unit represented by Formula 1, and a photopolymerization initiator; as well as a cured product obtained by curing the curable composition, a color filter including the cured product, a method for producing the color filter, and a solid-state imaging element or an image display device, each of which including the color filter. R.sup.1 to R.sup.3 each independently represent a hydrogen atom or an alkyl group, X.sup.1 represents —COO—, —CONR—, or an arylene group, R.sup.4 represents a divalent linking group, L.sup.1 represents a group represented by Formula 2 or 3, R.sup.5 represents an (n+1)-valent linking group, X.sup.2 represents an oxygen atom or —NR.sup.A—, R.sup.A represents a hydrogen atom, an alkyl group, or an aryl group, and n represents an integer of 1 or more. ##STR00001##

Provided are a curable composition including a pigment, a resin having a structural unit represented by Formula 1, and a photopolymerization initiator; as well as a cured product obtained by curing the curable composition, a color filter including the cured product, a method for producing the color filter, and a solid-state imaging element or an image display device, each of which including the color filter. R.sup.1 to R.sup.3 each independently represent a hydrogen atom or an alkyl group, X.sup.1 represents —COO—, —CONR—, or an arylene group, R.sup.4 represents a divalent linking group, L.sup.1 represents a group represented by Formula 2 or 3, R.sup.5 represents an (n+1)-valent linking group, X.sup.2 represents an oxygen atom or —NR.sup.A—, R.sup.A represents a hydrogen atom, an alkyl group, or an aryl group, and n represents an integer of 1 or more. ##STR00001##

Provided is an aromatic polycarbonate resin composition that exhibits an excellent surface hardness and strength as well as an excellent designability and lightfastness. The aromatic polycarbonate resin composition contains a carbonate structural unit (X) derived from an aromatic dihydroxy compound represented by a prescribed formula (1) and a carbonate structural unit (Y) derived from an aromatic dihydroxy compound represented by a prescribed formula (2) in a proportion of (X)/(Y)=10/90 to 40/60 as a molar ratio, wherein an amount of a cresolic hydroxy group derived from the aromatic dihydroxy compound represented by formula (1) is 60 to 160 ppm.

Provided is an aromatic polycarbonate resin composition that exhibits an excellent surface hardness and strength as well as an excellent designability and lightfastness. The aromatic polycarbonate resin composition contains a carbonate structural unit (X) derived from an aromatic dihydroxy compound represented by a prescribed formula (1) and a carbonate structural unit (Y) derived from an aromatic dihydroxy compound represented by a prescribed formula (2) in a proportion of (X)/(Y)=10/90 to 40/60 as a molar ratio, wherein an amount of a cresolic hydroxy group derived from the aromatic dihydroxy compound represented by formula (1) is 60 to 160 ppm.

A visibility controlling device with switchable transparency. This design of visibility controlling device is economical and can be operated manually or under electric power. The time for switching from translucent to transparent state requires about 5-30 seconds.

A visibility controlling device with switchable transparency. This design of visibility controlling device is economical and can be operated manually or under electric power. The time for switching from translucent to transparent state requires about 5-30 seconds.

Provided is an electrically conductive resin composition with which the characteristics inherent in a thermoplastic resin are easily retained and which exhibits more excellent electrical conductivity even if the blending amount of an electrically conductive filler is small. This electrically conductive resin composition contains a thermoplastic resin, such as a polycarbonate or a polyolefin, and an electrically conductive filler, such as a carbon nanotube. This electrically conductive resin composition further contains a dye, such as a perinone-based dye or a disazo-based dye, which is a component for improving electrical conductivity, and this electrically conductive resin composition can be obtained by kneading or molding a raw material mixture containing a thermoplastic resin, an electrically conductive filler, and a dye under a condition of a temperature equal to or higher than the melting point of the thermoplastic resin.