A capsule comprising a capsule wall and an electrophoretic fluid encapsulated by the capsule wall. The capsule wall comprises a cross-linked nonionic, water-soluble or water-dispersible polymer. The electrophoretic fluid comprises a suspending fluid, first pigment particles, second pigment particles, and third pigment particles. In some embodiments, the electrophoretic fluid includes a fourth electrophoretic particle. The first, second, and third particles are electrically charged, suspended in the suspending fluid, and capable of moving through the suspending fluid upon application of an electric field to the capsule.

There is provided a photoelectric conversion film including a quinacridone derivative represented by the following General formula and a subphthalocyanine derivative represented by the following General formula.

Provided are a coloring composition including a pigment A having a structure in which an aromatic ring group in which an electron-donating group is introduced into an aromatic ring is bonded to a diketopyrrolopyrrole skeleton, and a compound having a curable group, in which a content of the pigment A in a total solid content of the coloring composition is 35 mass % or more; a cured film formed of the coloring composition; a method for forming a pattern; a color filter; a solid-state imaging element; and an image display device.

An embodiment of the present disclosure relates to a method for producing an optical component resin having excellent dyeability, an optical component resin, a spectacle lens, and spectacles. A method for producing an optical component resin, including a step of polymerizing a polymerizable composition containing a polyisocyanate component and a polythiol component containing 40 mol % or more of a polythiol compound having two or more sulfide bonds in a molecular structure thereof, in which the content of a hydrolyzable chlorine compound contained in the polyisocyanate component is in a range of 10 ppm by mass or more and 100 ppm by mass or less in the polyisocyanate component, an optical component resin obtained by the producing method, an optical component formed of the optical component resin, a spectacle lens including a lens substrate formed of the optical component resin, and spectacles including the spectacle lens.

The invention relates to a security pigment, comprising core-shell particles having a core based on an organic addition polymer, a shell based on an organic condensation polymer and a feature substance present in the core in finely dispersed or dissolved form, wherein the addition polymer is a three-dimensionally cross-linked duromer.

Provided herein are color charts and water color pigment solutions useful, for example, in the calibration of reflectance-based diagnostic analyzers.

The present invention relates a red color filter photoresist. The present invention adopts rhodamine and its derivatives with high dye uptake as a red dye, in combination with red and yellow pigment systems, to form a mixed dye-pigment red color filter photoresist that satisfies current requirements of wide color gamut and processing requirements of LCDs, which prevents that development of red color filter photoresist stagnates and leads to problems of products such as white points and dark state color points, and is advantageous to realize a liquid crystal display with wider color gamut.

An object of the present invention is to provide a colored photosensitive resin composition capable of forming a color filter having a higher brightness than that of the color filter formed from the conventionally known colored photosensitive resin composition.

The colored photosensitive resin composition according to the present invention comprises a colorant, a resin, a polymerizable compound, and a polymerization initiator, the colorant comprising a compound represented by formula (1) and an α-type and/or β-type copper phthalocyanine pigment,

##STR00001##

wherein M.sup.r+ represents an r-valent metal ion; k represents the sum of the number of —SO.sub.3.sup.− and the number of —SO.sub.2—N.sup.−—SO.sub.2—R.sup.f in the compound represented by formula (1); r represents an integer of 1 or more; R.sup.f represents a fluoroalkyl group having 1 to 12 carbon atoms; and the compound represented by formula (1) has at least one —SO.sub.3.sup.− or —SO.sub.2—N.sup.−—SO.sub.2—R.sup.f.

The invention relates to aqueous binder-free pigment dispersions containing (A) at least one organic and/or inorganic pigment, (B) one or more dispersing agents and/or surfactants, (C) at least one base of formula (I), where R.sup.1 is H, C.sub.1-C.sub.4-alkyl, CH.sub.2CH.sub.2OH or CH.sub.2CH(CH.sub.3)OH, (D) optionally, one or more polyalkylene glycols, (E) optionally, other additives commonly used for making aqueous pigment dispersions, and (F) water. ##STR00001##

A pigment system of different capsule-luminescent pigments have different emission spectra, preferably different color impressions of the luminescence emission, and possess substantially the same chemical stabilities. The capsule-luminescent pigments are based on organic or metalorganic luminescent substances.