C09K2323/035

Polarizing plate and method for manufacturing polarizing plate
11002897 · 2021-05-11 · ·

A polarizing plate including a polarizer, and a protective film layer formed on at least one surface of the polarizer, wherein the protective film layer is formed of a protective resin having a volatile component content of 0.03% by weight or less, and a thickness d of the protective film layer satisfies the formula (1): 0.01 μm≤d≤0.5 μm (1).

LAYERED FILM AND DISPLAY DEVICE

The present invention provides a laminate film and a display member including the laminate film, which are excellent in visibility of external information such as scenery and displayability of information from a projection member, and are also excellent in color tone reproducibility. The laminate film includes a laminate of 50 or more alternately arranged layers of a plurality of different thermoplastic resins, the laminate film having a transmittance of light incident perpendicularly to a film surface of 50% or more, the laminate film satisfying a relationship of R20≤R40<R70, wherein R20, R40, and R70 are reflectances of a P-wave incident at angles of 20°, 40°, and 70°, respectively, to the normal to the film surface, the reflectance of R70 being 30% or more, reflected light of the P-wave incident at 70° to the normal to the film surface having a saturation of 20 or less.

POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, OPTICALLY ANISOTROPIC FILM, OPTICAL FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE

An object of the present invention is to provide a polymerizable liquid crystal composition used for formation of an optically anisotropic film having excellent moisture-heat resistance and an excellent surface condition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device. The polymerizable liquid crystal composition of an embodiment of the present invention is a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound and a compound represented by Formula (1): L.sup.1-SP.sup.1-(E.sup.3-A.sup.1).sub.m-E.sup.1-G.sup.1-C(═O)—O—C(═O)-G.sup.2-E.sup.2-(A.sup.2-E.sup.4).sub.n-SP.sup.2-L.sup.2, in which a content of the compound represented by Formula (1) is 0.01 to 5 parts by mass with respect to 100 parts by mass of the polymerizable liquid crystal compound.

Liquid crystal display device and polarizer protective film

The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nxny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 030 or 9030.

LIQUID CRYSTAL DISPLAY DEVICE
20210041749 · 2021-02-11 ·

An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled.

POLARIZING PLATE, CURVED LIQUID CRYSTAL DISPLAY DEVICE INCLUDING SAME, AND METHOD FOR MANUFACTURING CURVED LIQUID CRYSTAL DISPLAY DEVICE
20210088841 · 2021-03-25 ·

Provided are a polarizing plate, a curved liquid crystal display device including the same, and a method for manufacturing a curved liquid crystal display device. The polarizing plate according to the present invention includes a polarizer and a polarizer protection film disposed on at least one surface of the polarizer, wherein the polarizing plate has a shrinkage rate in a machine direction (MD), which is greater by a range from about 2.2% to about 20% than that in a transverse direction (TD).

POLARIZING FILM, METHOD FOR MANUFACTURING SAME, POLARIZING PLATE, AND DISPLAY DEVICE
20210207030 · 2021-07-08 ·

A polarizing film including a polarizer that is a cured product of a polymerizable liquid crystal composition is provided. The polymerizable liquid crystal composition contains both a polymerizable liquid crystal compound having at least one polymerizable group and a dichroic coloring matter. The polarizer is laminated on a surface, having a pore size of 0.45 nm to 0.57 nm, of a base material. The pore size is obtained by converting, into a diameter, an average free volume radius calculated by a positron lifetime measurement method in which the positron lifetime is measured by irradiating the surface with positrons with an injection energy of 3 kV.

AROMATIC LIQUID CRYSTAL POLYESTER, AROMATIC LIQUID CRYSTAL POLYESTER COMPOSITION, AND MOLDED ARTICLE
20210024687 · 2021-01-28 ·

An aromatic liquid crystal polyester containing repeating structural units represented by formulas (A1), (B), (C) and (D) shown below.


OAr1CO(A1)


COAr2CO(B)


OAr3O(C)


OAr4O(D)

(In the formulas, Ar1 represents a 2,6-naphthalene group, Art represents at least one group selected from the group consisting of a 2,6-naphthalenediyl group, 1,4-phe vlene group, 1,3-phenvIene group and 4,4-biphenylene group, Ar3 represents at least one group selected from the group consisting of a 2, mphthalenediyl group, 1,6-naphthalenediyl group and 1,5-naphthalenediyl group, Ar4 represents at least one group selected from the group consisting of a 2,6-naphthalenediyl group, 1,4-phenylene group, 1,3-phenylene group and 4,4-hiphenylene group, and each of the groups represented by Ar1, Ar3 or Ar4 may have a halogen atom, an alkyl group of 1 to 10 carbon atoms Of alt aryl group of 6 to 20 carbon atoms as a substituent.)

Solvent-free photo-curable resin composition for polarizing plate protective layer, polarizing plate comprising cured product thereof, and image display device

A solvent free-type photocurable resin composition for a polarizing plate protective layer includes an acryl-based prepolymer comprising a (meth)acrylate-based monomer as a polymerization unit; and an isocyanate-based crosslinking agent, wherein the acryl-based prepolymer is in a partially polymerized state, and viscosity at 25 C. is greater than or equal to 50 cPs and less than or equal to 300 cPs. A polarizing plate including the solvent free-type photocurable resin composition, and an image display device including the polarizing plate is also provided.

POLARIZER PROTECTIVE FILM AND MANUFACTURING METHOD THEREOF
20210018665 · 2021-01-21 ·

Provided are a polarizer protective film comprising a polymeric film and a coating layer formed on at least one surface of the polymeric film, where the coating layer has a plurality of concave embossed patterns and has a surface roughness of 2.0 nm to 20.0 nm, and a manufacturing method thereof.