The invention relates to a polymerisable LC material comprising one or more direactive mesogenic compounds selected from the group of compounds of formula I,

##STR00001## and one or more monoreactive mesogenic compounds selected from the group of compounds of formula II,

##STR00002## wherein the parameter A.sup.11, P.sup.11 to P.sup.21, R.sup.21, Sp.sup.11 to Sp.sup.21, X.sup.11 to X.sup.21, and Z.sup.11 to Z.sup.21 have one of the meanings as given in claim 1.

Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

Object To provide a tilt-imparted liquid crystal display element that is obtained through UV irradiation of a polymerizable liquid crystal composition, whose drive voltage can be reduced with a fast decay time maintained, and that is well balanced between characteristics, such as decay time, drive voltage, and transmittance. A polymerizable liquid crystal composition for use in it is also provided. Solution A liquid crystal display element has polymer networks formed in the liquid crystal phase 5 in FIG. 3. The polymer networks are formed by polymerizing a polymerizable liquid crystal composition that contains, as essential ingredients, a radically polymerizable monomer component (A), a liquid crystal material (B), and a polymerization initiator (C) that has a molecular structure resulting from substituting any two or more hydrogen atoms in the aromatic nucleus in the molecular structure of an alkylphenone-based photopolymerization initiator, for example with a C1-10 alkyl group (i).

The ultraviolet-curable resin composition for the blue light blocking film of the present disclosure includes at least one polymerizable liquid crystal compound having a polymerizable functional group and at least one (meth)acrylate having a (meth)acryloyl group in the molecule and having a molecular weight of 200 or more. The blue light blocking film of the present disclosure includes a support body and a cured film on the support body, the cured film being obtained by curing the above-mentioned ultraviolet-curable resin composition.

An object of the invention is to provide a liquid crystal composition with which a light absorption anisotropic film having a high alignment degree can be formed, a light absorption anisotropic film which is provided using the liquid crystal composition, a laminate, and an image display device. A liquid crystal composition according to an embodiment of the invention contains a linear polymer liquid crystalline compound having a repeating unit; a low-molecular-weight liquid crystalline compound having a maximum absorption wavelength of 390 nm or less in a solution; and a dichroic substance.

A retardation plate is formed by laminating at least two retardation plates of a retardation plate 1 and a retardation plate 2, in which at least one of the retardation plate 1 and the retardation plate 2 is formed of a polymer of a polymerizable liquid crystal composition. It is possible to provide a retardation plate imparting a phase difference of wavelength over a wide wavelength region, a circularly polarizing plate having excellent anti-reflection performance over a wide wavelength region, and a display element or a light-emitting element having excellent visibility.

An object of the invention is to provide an anisotropic light absorption film having both a high alignment degree and high light resistance, and a laminate provided using the anisotropic light absorption film. An anisotropic light absorption film according to the embodiment of the invention is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a compound represented by Formula (I) or a polymer thereof, the first dichroic azo dye has a solution absorption maximum wavelength of 400 nm or greater and less than 550 nm, the second dichroic azo dye has a solution absorption maximum wavelength of 550 nm or greater and 750 nm or less, and the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein.

Provided is a low-cost image display apparatus that has asymmetry in the display characteristics in the right-to-left direction, displays a clear image to the driver, exhibits an appropriate viewing angle control function that reduces reflected glare on the window glass, and is thinly made while causing no moire, and there are also provided an information display system for a vehicle, and an optical film. The image display apparatus includes a viewing-side polarizing plate, a liquid crystal cell, a backlight-side polarizing plate, an optical film, and a backlight in this order, in which the optical film includes an optically anisotropic layer and a polarizer in this order from the liquid crystal cell side, the absorption axis of the backlight-side polarizing plate and the absorption axis of the polarizer are parallel or orthogonal to each other, the optically anisotropic layer is optically uniaxially anisotropic, while in a case where the optic axis of the optically anisotropic layer is projected onto the polarizer as viewed from the viewing-side of the image display apparatus, the azimuthal angle of the optic axis is +50 to +70 or 50 to 70 with respect to the horizontal direction, the average tilt angle of the optic axis with respect to the main surface of the optically anisotropic layer is 20 to 45, and the in-plane phase difference Re (550) of the optically anisotropic layer is 70 nm to 240 nm.

The liquid crystal display device includes a pair of substrates consisting of first and second substrates arranged to face each other, a liquid crystal layer sandwiched between the first and second substrates, a pixel electrode disposed on at least one of the first and second substrates, a common electrode disposed on at least one of the first and second substrates, a light source section including a light-emitting element, and a photoconversion layer including pixels of three primary colors consisting of red (R), green (G), and blue (B). The photoconversion layer contains a light-emitting nanocrystal having an emission spectrum of any of red (R), green (G), and blue (B) upon receiving light emitted from the light source section on at least one of the three primary colors. The liquid crystal layer contains a liquid crystal composition containing a compound represented by General Formula (i) at 10% to 50% by mass.

The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for self-alignment additives which have a certain position of the functional groups.

A compound serving as a dichroic pigment which has a maximum absorption wavelength in a range of 350 nm to 510 nm is represented by the following Formula (1): ##STR00001##
In Formula (1), R.sup.1 represents a hydrogen atom or a C1-C20 alkyl group; R.sup.2 through R.sup.4 are substituents which are not hydrogen atoms and each independently represent a C1-C4 alkyl group; m, p, and q are each independently an integer of 0 to 2; and R.sup.5 is (i) a C1-C10 alkyl group in which a hydrogen atom is substituted by at least one hydroxy group or (ii) a C1-C10 alkyl group which has carbon atoms and in which at least one O is inserted between the carbon atoms.