A color filter including at least a transparent substrate and color layers disposed on the substrate. At least one of the color layers contains a compound which is represented by the following general formula (I):

##STR00001##

In general formula (I), “A” is a substituent group represented by the following general formula (IV):

##STR00002##

The present invention provides a solid color film, a preparation method thereof and a display device. The solid color film includes a transparent substrate and a solid color material dispersed in the transparent substrate, and the solid color material includes a host structure formed of cucurbituril and a guest structure supported on the host structure and formed by bonding a carboxyl group-containing rhodamine-based dye and an aminoadamantane through a chemical bond, wherein the guest structure is bonded to the host structure through the adamantane to form a host-guest structure.

The present invention discloses a display panel, a manufacturing method, and a display device, wherein the display panel includes: a color filter substrate; an array substrate disposed correspondingly to the color filter substrate and comprising two metal layers; and a liquid crystal layer sandwiched between the color filter substrate and the array substrate, wherein a reflection blocking layer is disposed on one of the metal layers near a viewer, to reduce a reflectance of the array substrate to ambient light. The present invention can improve display contrast, thus beneficial to improving a viewing experience of the viewer.

A color material dispersion liquid including a color material, a dispersant and a solvent, wherein the color material contains a compound which is represented by the following general formula (I) and which contains one or more structures selected from the following structures (i) and (ii); wherein (i) “A” is an aliphatic hydrocarbon group containing two or more alicyclic hydrocarbon groups, containing a saturated aliphatic hydrocarbon group at a terminal position directly bound to “N”, and optionally containing O, S, N in a carbon chain, and (ii) at least one of R.sup.2 to R.sup.5 is a cycloalkyl group optionally containing a substituent group or an aryl group optionally containing a substituent group. ##STR00001##

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

A usual ink composition can be expected to improve ink viscosity to a certain degree, but when used for a glycol ether-based ink recently required, an increase in viscosity in preparing the ink cannot be suppressed. In addition, there is unknown a copper phthalocyanine pigment composition which can satisfy both such an improvement in ink viscosity and resolubility as printability which is important for the glycol ether-based ink. In this situation, a problem to be solved by the present invention is to provide a copper phthalocyanine pigment composition having low viscosity and excellent resolubility in a glycol ether-based ink. It was found that when a copper phthalocyanine pigment is combined with a specified copper phthalocyanine acid derivative, a pigment composition having significantly low viscosity when formed into a glycol ether-based ink, and good familiarity with the ink can be produced, leading to the achievement of the present invention.

A color material dispersion liquid including a color material, which is a salt-forming compound of an organic dye with a heteropolyoxometalate, a dispersant and a solvent, wherein the organic dye is at least one organic dye selected from the group consisting of a porphyrin dye, a tetraazaporphyrin dye, a phthalocyanine dye and a squarylium dye, and wherein the heteropolyoxometalate is a heteropolyoxometalate which has an oxidation-reduction potential larger than −0.3 V relative to the silver/silver chloride electrode.

An optical filter includes: a resin substrate having a thickness of 20 μm or more and 110 μm or less; an absorption layer having a thickness of 0.25 μm or more and 12 μm or less and being disposed on at least one principal surface of the resin substrate; and dielectric multilayer films disposed as an outermost layer on both principal surfaces of the resin substrate. At least one of the dielectric multilayer films is a near-infrared reflection layer. The resin substrate includes a first transparent resin having a glass transition temperature of 170° C. or more and having specific optical properties. The absorption layer includes a near-infrared absorbing dye (A) and a second transparent resin having a glass transition temperature of 170° C. or more, and the near-infrared absorbing dye (A) satisfies specific optical properties in relation to the second transparent resin.

An intrinsic fluorescent green fiber includes 98.00 to 99.00 parts by weight of a carrier, 0.10 to 0.20 parts by weight of a yellow colorant, 0.08 to 0.20 parts by weight of a blue colorant, and 1.00 to 1.50 parts by weight of a titanium dioxide. When a content of 0.10 wt % to 0.20 wt % of the yellow colorant and a balance of the carrier are mixed to form a yellow fiber, the L*, a*, and b* values of the yellow fiber are respectively between 101.27 and 101.72, between −17.61 and −13.47, and between 89.84 and 108.79. When a content of 0.08 wt % to 0.20 wt % of the blue colorant and a balance of the carrier are mixed to form a blue fiber, the L*, a*, and b* values of the blue fiber are respectively between 55.60 and 66.80, between −22.69 and −22.70, and between −37.50 and −31.80.

A thermal indicator, a thermal indicating composition (1), as well as two kinds of thermal indicating structures (11) are disclosed. The thermal indicator comprises an organic solid material (2) having a melting point higher than ambient temperature and a dye (3) which contacts the organic solid material (2) and is capable of being dissolved in the organic solid material (2) when the thermal indicator is heated to the melting point of the organic solid material (2). The thermal indicator, the thermal indicating composition (1), as well as these two kinds of thermal indicating structures (1) have simple structures and can be manufactured by a simple process. Furthermore, the existence of the dye (3) in its crystalline state offers significant resistance to UV radiation in outdoor applications.