An object of the present invention is to provide a polymer compound which can form a phase difference layer having high alignment and suppressed surface unevenness by being blended into a liquid crystal composition, and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention includes a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), and a repeating unit represented by Formula (III), in which an acid value is 115 mgKOH/g or more, and a hydroxyl value is 70 mgKOH/g or more. ##STR00001##

The present invention provides a composition to form an optically anisotropic film exhibiting excellent reverse wavelength dispersibility, an optically anisotropic film, a circularly polarizing plate; a display device; and a near-infrared absorbing coloring agent. The composition includes a liquid crystal compound or a polymer, and a near-infrared absorbing coloring agent having a structural moiety including a coloring agent skeleton and a mesogenic group that is bonded to the coloring agent skeleton, in which the near-infrared absorbing coloring agent satisfies Condition 1 where an absolute value λ1 of a square root of a first eigenvalue and an absolute value λ2 of a square root of a second eigenvalue satisfy a relationship of Formula (A) λ2/λ1≤0.60; and Condition 2: An angle between a direction of a transition moment of absorption of the infrared absorbing coloring agent and a direction of an eigenvector of the first eigenvalue is 75.0° or more.

A color filter and a display apparatus employing the color filter are provided. The color filter includes a base substrate and a color photoresist layer disposed on the base substrate. The color photoresist layer includes a photopolymerized photosensitive composition, at least one of a pigment and a dye, and quantum dots.

Provided is a polarizing element which has an excellent antireflection function as being applied to an image display device; and a circularly polarizing plate and an image display device, each of which has the polarizing element. The polarizing element has an alignment film and an anisotropic light-absorbing film formed using a dichroic substance, in which a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, and an average refractive index n.sub.ave at a wavelength of 400 to 700 nm of the alignment film is 1.55 to 2.0.

Provided is a polarizer with excellent durability and an image display device including the polarizer. The polarizer includes a composition for forming a polarizer which contains a polymer liquid crystal compound and a dichroic material, in which the dichroic material includes a first dichroic material and a second dichroic material, an absolute value of a difference between a log P value of the first dichroic material and a log P value of the second dichroic material is 1.0 or less, and a stabilization energy indicating an energy loss in a case where one dichroic material of the first dichroic material and the second dichroic material is incorporated into a structure singly formed of the other dichroic material that is aligned therein is 30 kcal/mol or less.

A polymeric lyotropic liquid crystal solution comprises a birefringent aromatic polymer. A linear polarizer layer is obtained by shear-coating the polymeric lyotropic liquid crystal solution on a coatable substrate, and treating the resulting coating layer with a doping-passivation solution containing iodine and multi-valent cations. A linear polarizer includes a birefringent coating layer of 1.0 micrometers or less in thickness, and contains birefringent aromatic polymer, iodine anions, and multi-valent cations. An optical article includes an optical retarder layer of 1.0 micrometers or less in thickness and a linear polarizer layer of 1.0 micrometers or less in thickness, with an intermediate layer between the linear polarizer layer and the optical retarder layer. The optical retarder layer contains a first birefringent aromatic polymer generally aligned along a first alignment direction and the linear polarizer layer contains a second birefringent aromatic polymer generally aligned along a second alignment direction, with an angle between the first alignment direction and the second alignment direction in a range of 40° to 50°.

A polarizing plate and an optical display device comprising the same are disclosed. The polarizing plate includes a polarizer comprising a zinc cation and a unit represented by the Formula 1, and the polarizing plate has a chrominance variation ΔE of about 5.2 or less, as calculated by Equation 1

An optically transparent adhesive resin composition includes an ester polymer which contains an ester bond within a repeating unit, a (meth)acrylic ester polymer which contains a (meth)acrylic ester bond within the repeating unit, a rubber polymer, and a crystalline polymer.

Provided are a polarizing plate protective film including a resin and a coloring agent having an absorption maximum wavelength in a range of 560 to 620 nm or 460 to 520 nm in an amount of 0.1 parts by mass or more with respect to 100 parts by mass of the resin, in which a film thickness is 1 to 18 μm, and a moisture content is 0.5% by mass or less, a polarizing plate in which the protective film is used, and a liquid crystal display device in which the polarizing plate is used.

The present application discloses a display substrate. The display substrate includes a base substrate; a color filter on the base substrate; and an overcoat layer on a side of the color filter distal to the base substrate. The overcoat layer includes a first sublayer and a second sublayer, the second sublayer on a side of the first sublayer distal to the base substrate. The first sublayer includes a first polymer material. The second sublayer includes a second polymer material different from the first polymer material.