Abstract: A broad band cholesteric liquid crystal film of the present invention is a cholesteric liquid crystal film obtained by coating a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photoisomerizable material (c) on a substrate to ultraviolet polymerize a coat of the liquid crystal mixture, and has a reflection bandwidth of 200 nm or more. A broad band cholesteric liquid crystal film of the present invention has a broad reflection band, is of a thin type and can be manufactured in less of manufacturing steps.

Abstract: An optical compensation panel is disclosed. The optical compensation panel includes a first optical compensation layer, a second optical compensation layer and an adhesive layer for bonding the first optical compensation layer and the second optical compensation layer so as to face each other, wherein the adhesive layer is made of a photopolymerization material, photopolymerization of which is started by a photopolymerization initiator upon irradiation with light, with the photopolymerization initiator being contained in an amount of from 2 to 5% by weight relative to the photopolymerization material in starting the photopolymerization, and the adhesive layer is formed so as to have a rate of change in glass transition temperature of the adhesive layer falling within 150% and a rate of change in weight of the adhesive layer falling within 5% before and after an annealing treatment.

Abstract: A matte surface of a display screen is converted to an optically flat surface, for example, via an epoxy resin coating or the like which has a refractive index equal to that of the matte surface. A film with a substantially flat surface may be applied to the matte surface. Alternatively, the matte surface may be removed from the screen, and replaced with an optically smooth surface. The matte surface may be a diffusive surface formed on a birefringent film of an LCD screen. The display screen is the front screen of a multilevel three-dimensional display comprising layered screens, and altering the surface from matte to flat reduces the blurring of displayed images.

Abstract: A color purity improving sheet that improves color purity while preventing brightness from degrading due to absorption of light of a necessary color. The color purity improving sheet includes a light-emitting layer containing a light-emitting means for absorbing light in a specific wavelength range other than the target wavelength range and converting its wavelength to emit light in the target wavelength range, and a reflective layer. The light-emitting layer has a transmittance of at least 70% at the maximum absorption wavelength of the light-emitting layer. The light-emitting layer and the reflective layer are laminated together in this order in a direction from which light of a backlight is incident. The reflective layer selectively reflects part of light in the specific wavelength range other than the target wavelength range and has been transmitted without being absorbed by the light-emitting means in the light-emitting layer, allowing entrance into the light-emitting layer again.

Abstract: A liquid crystal composition and a liquid crystal display including the liquid crystal composition that includes a first class containing a fluorine-containing liquid crystal compound represented by Formula I (n=1, 2, or 3), and a second class containing at least one neutral liquid crystal compound represented by Formulae III, IV, and V. In Formula I, W1 and W2 are each independently selected from the group consisting of —F, —CF3, —CF2H, —OCF3, and —OCF2H, the liquid crystal compounds represented by Formulae I, III, IV, and V have R1, R2, and R5 to R10 that are any one of a hydrogen atom, and an alkyl group, an alkoxy group, and an alkenyl group having 1 to 12 carbon atoms as terminal groups, and a first sub-class has a content of 6 wt % or less based on a total content of the first class and the second class, with the proviso that a liquid crystal compound of the first class having n=1 is the first sub-class and a liquid crystal compound of the first class having n=2 or 3 is a second sub-class.

Abstract: The invention relates to optical devices for producing and/or transforming polarized electromagnetic emission by means of anisotropic absorption and/or optical rotation effects and/or birefringence and can be used as different polarizers (dichroic, reflecting), lagging layers (retarders), liquid-crystal displays and indicators and also for producing polarizing glass for building construction and for sun and antiglare glasses, masks, aprons and faceplates. The inventive optical device is based on at least one molecularly oriented layer of a low-molecular or oligomeric dichroic material which can form a stable lyotropic liquid crystal structure. The projection of at least one anisotropically absorbing fragment of a molecule of the dichroic material on the surface of the molecularly oriented layer of a dipole moment of optical transition is disposed in a parallel position to the optical axis of the molecularly oriented layer at least within several ranges of wavelength of the electromagnetic emission.

Abstract: In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable liquid crystal composition is provided as a raw material therefor. The composition contains Compound (1) and at least one of Compound (2) and Compound (3), with a proportion of Compound (1) being from 50 to 99% by weight, a proportion of Compound (2) being from 0 to 50% by weight, and a proportion of Compound (3) being from 0 to 50% by weight: wherein R is alkyl; each of W1 and W2 is independently hydrogen, chlorine, fluorine or —CH3; each of W3 and W4 is independently hydrogen, chlorine, fluorine, —CH3 or —CF3; W5 is alkyl having, alkoxy, chlorine, fluorine, —CN or —OCF3; X is a single bond, —CH?CH— or —CH2CH2—; Z is a single bond, —COO—, —OCO— or —CH2CH2—; and q is an integer of from 1 to 20.

Abstract: A low fringing film coating includes a transparent polymeric layer having a surface, and a plurality of projections extending away from the surface. The projections have a mean height of 0.05 to 1 ?m and a mean distance between projections of 0.5 to 2 mm. The coating can be produced by coating a polymeric composition onto a substrate. The polymeric composition includes a polymeric material, a good solvent for the polymeric material and a poor solvent or the polymeric material. The solvents are at least partially evaporated to form a low fringing transparent polymeric layer.

Abstract: A radiation sensitive composition containing inorganic oxide particles; a copolymer of at least one unsaturated compound selected from the group consisting of an unsaturated carboxylic acid and an unsaturated carboxylic anhydride and other unsaturated compound different from the unsaturated compound; a polyfunctional unsaturated compound having at least two ethylenically unsaturated groups in the molecule; and a radiation sensitive polymerization initiator. The composition is useful for making a microlens.

Abstract: Disclosed herein are light diffusing films, methods of making the same and articles using the same. In one embodiment, a method of making a light-diffusing film comprises: mixing about 90 wt. % to about 99.999 wt. % of a powdered polycarbonate and about 0.001 wt. % to about 3 wt. % light-diffusing particles to form a mixture, wherein weight percents are based on a total weight of the light-diffusing film; melting the mixture to form a melt; and extruding the melt in the form of a sheet to form the light-diffusing film. The light-diffusing film comprises a hiding power of about 0 to 0.

Abstract: A transparent substrate with optical compensation ability comprises polyimide having the following chemical formula: wherein A and A? are cyclic aliphatic or aromatic compounds, B and B? are cyclic aliphatic or aromatic compounds. In particular, the refractive index of the transparent polyimide is nx=ny>nz, that is, it has ability of adjusting the negative type c-plate phase difference, wherein nx represents the lateral refractive index, ny represents the longitudinal refractive index, nz represents the vertical refractive index along the thickness direction, and m and n are between 10 and 10,000.

Abstract: It is the object of the present invention to provide a retardation film comprising a norbornene type copolymer, being excellent in heat resistance, low specific gravity, low birefringence, low photoelasticity, and low chromatic dispersion and having high performance of retardation compensation.

Abstract: An optical device is disclosed. The optical device includes: a polymerizable liquid crystal monomer hybrid-aligned in the optical device; and a first polymerizable liquid crystal monomer aligned at a given angle to an alignment processed surface; and a second polymerizable liquid crystal monomer hybrid-aligned relative to the alignment processed surface; wherein viewing-angle dependence of a phase difference of the optical device is controlled by a ratio of the amount of the first polymerizable liquid crystal monomer to the amount of the second polymerizable liquid crystal monomer.

Abstract: The present invention can provide an antireflection film improved in the scratch resistance while having a sufficiently high antireflection property, and a polarizing plate and a display device using the antireflection film, the antireflection film antireflection film comprising: a transparent support; and as an outermost layer, a low refractive index layer containing a fluorine-containing polymer, wherein the low refractive index layer comprises at least one inorganic fine particle having an average particle size of 30 to 100% of the thickness of the low refractive index layer; the polarizing plate using the antireflection film for one of two protective films of a polarizer in the polarizing plate; and the image display device using the antireflection film or polarizing plate for the outermost surface of the display.

Abstract: A novel display device is disclosed. The display device comprises a plural of liquid crystal layers disposed between a pair of electrodes respectively, wherein each of the liquid crystal layers shows an absorption peak at a different wavelength and comprises at least one dichroic dye and at least one dual-frequency switchable liquid crystal as a host liquid crystal.

Abstract: A liquid crystal panel having improved contrast ratio in an oblique direction and good display evenness without causing shift or unevenness in retardation values due to shrinkage stress of a polarizer or heat of backlight is provided. A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a polarizer arranged on both sides of the liquid crystal cell; a first optical element arranged between one polarizer and the liquid crystal cell; and a second optical element arranged between the other polarizer and the liquid crystal cell, wherein: the first optical element comprises a retardation film containing a norbornene-based resin and satisfying the following expressions (1) and (2); and the second optical element has substantially optical isotropy: 240 nm?Re[590]?350 nm??(1) 0.20?Rth[590]/Re[590]?0.80.

Abstract: A retardation film containing a polyalcohol ester, a polycarboxylic acid ester, and a cellulose ester, wherein a total acylation degree of the cellulose ester is in the range of 2.4-2.8; and a Mw/Mn value of the cellulose ester is in the range of 1.4-3.0, provided that Mw represents a weight average molecular weight and Mn represent a number average molecular weight of the cellulose ester.

Abstract: Provided are: a long optical laminate prepared by laminating two obliquely stretched long phase-difference films so that the respective delayed-phase axes cross each other at a specified angle, while at least one of the two phase-difference films is a film containing residual volatile component by 1000 ppm or less; a long optical element prepared by laminating the optical laminate on one surface of polarization film; a long broad-band ¼ wavelength plate; an optical member prepared by laminating a circularly polarized light separating layer of cholesteric liquid crystal on one surface of the broad-band ¼ wavelength plate; a broad-band circular element using the broad-band ¼ wavelength plate; and an optical product having the broad-band circular polarization element.

Abstract: A film unit disposed on an outer surface of a substrate includes a film and an adhesive layer provided on the film. The film is attached to the substrate through the adhesive layer, and the adhesive layer includes a first adhesive applied on a first area, and a second adhesive applied on a second area and having a different adhering force from the first adhesive. The first area and the second area are symmetrically disposed about a central part of the film.

Abstract: A liquid crystal composition comprising at least one liquid crystal compound and at least one anthraquinone compound represented by formula (1) below: Formula (1) (wherein R2 to R8 each independently represents a hydrogen or substituent; Het is a sulfur or oxygen; B1 and B2 each independently represents an optionally substituted arylene, heteroarylene, cycloalkan-diyl or cycloalken-diyl; Q1 is a bivalent linking group; C1 is an optionally substituted alkyl, cycloalkyl, alkoxy, alkokycarbonyl or acyloxy; p, q and r each represents a number from 0 to 5 and n is a number from 1 to 3 satisfying 3?(p+r)×n?10; when plural {(B1)p-(Q1)q-(B2)r} are present, these may be the same or different) was disclosed

Abstract: A liquid crystal polymer dispersion is formed where liquid crystal encapsulation is produced by a process in which a reactive additive formulation is mixed and photo-polymerized. The polymerizable additive formulation includes monofunctional, multifunctional and photoinitiator compounds in specific composition. The polymerizable additive formulation enhances the control of deformed globule or droplet size, structure integrity, electro-optical properties, and prohibits flow of the liquid crystal as it is encapsulated. A simple process and a controllable system for encapsulating cholesteric materials that provides rugged low-power flexible passively-driven displays. Such displays offer the possibility of lower cost roll-to-roll manufacturing in addition to lighter weight, more rugged and conformable displays.

Abstract: A novel optically-anisotropic film is disclosed. The film is formed of a composition comprising at least one discotic liquid-crystal compound having a ratio, ?1, which is a ratio of birefringence at 400 nm to birefringence at 550 nm in a liquid-crystal state, of less than 1.25, in which the molecules of the liquid-crystal compound are fixed in an alignment state at a mean tilt angle ranging from 35 to 85°, wherein its in-plane retardation Re, as measured in a direction normal to a plane of the optically-anisotropic film for 50 nm wavelength light, falls within the range from 60 nm to 220 nm.

Abstract: The invention relates to a liquid crystal display comprising a multi-layered display unit (1) which is introduced into a housing (20). Said unit comprises, in a successive manner from the visible side to the rear side, a front polarisation filter (11), a liquid crystal layer (12), a rear polarisation filter (13) and a diffusion layer (14) or retro-reflection layer, optionally, with additional layers (15, 16). High luminosity is achieved by virtue of the fact that the diffusion layer or the retro-reflection layer are provided with fluorescent colours (14.1).

Abstract: The invention relates to the use of a printable polymerisable liquid crystal material as printable system for the preparation of polymers and pigments, to printable polymerisable liquid crystal materials and pigments and polymers prepared thereof, and to the use of the printable materials, pigments and polymers in optical, electrooptical, semiconductor and electronic applications and as birefringent and optically variable markings for decorative, security, authentification or identification applications.

Abstract: A rewritable display containing a substrate having thereon one or more constitution layers, one of the constitution layers being a liquid crystal layer containing a liquid crystal composition which is dispersed in a binder, and one of the constitution layers containing a compound selected from the group constituted of: (a) alumina particles; (b) a layer structured inorganic compound; (c) a specific azomethine dye compound represented by Formula (D) whose structure is described in the specification; (d) a fluorescent brightening agent; and (e) a ultraviolet absorber.

Abstract: Novel liquid crystal compositions are disclosed. One of them comprises at least a dichroic dye having a substituent containing three or more cyclic moieties, and a dual-frequency switchable nematic liquid crystal as a host liquid crystal; and another one comprises a dichroic dye having a substituent containing three or more cyclic moieties, and a liquid crystal comprising at least one nematic liquid crystal compound and at least one chiral agent. A novel liquid crystal device, comprising a pair of electrodes of which at least one is a transparent electrode and a layer between the pair of electrodes comprising one of the liquid crystal compositions, is also disclosed.

Abstract: An optical film includes a cellulose acylate, a polymer additive that decreases an optical anisotropy of the cellulose acylate, a compound that has a plasticizing effect, and a compound that changes a wavelength dispersion of an optical property of the cellulose acylate.

Abstract: The invention is directed to the use of a liquid crystal composition in a bistable liquid crystal device and especially in a single polariser reflective or transflective zenithal bistable nematic liquid crystal device as well as a bistable liquid crystal device comprising the liquid crystal composition.

Abstract: A method of using a liquid crystal composition in a bistable liquid crystal device having a weak zenithal anchoring comprising at least 40% by weight of compounds with strong molecular polarisability and strong dipole moment.

Abstract: The present invention is to solve a problem that, conventionally, there is a risk of impurity elution when the optical retardation control layer obtainable by photopolymerization comes into contact with the liquid crystal layer because of the deterioration in heat resistance of the optical retardation control layer due to high temperature of post-process, the insufficient chemical resistance or the like. ?-amino alkylphenone based 2-methyl-1[4-(methylthio)phenyl]-2-morpholinopropane-1-one or 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1 are used as a photopolymerization initiator to be compounded in a composition for forming an optical retardation control layer or other optically functional layers.

Abstract: The present invention provides a coating liquid which is excellent in stabilities and capable of being stably ejected by an ejection equipment and suppressing variation in film thickness inside a film or between films, in application for various uses, a film production method, a production method of a functional device, and a functional device, using the coating liquid. The present invention is a coating liquid comprising a mixed solvent and a functional material, wherein the mixed solvent comprises a first solvent constituted by a compound having two or more aromatic rings such as diphenyl sulfide, diphenylmethane, diphenyl ether, and a symmetric structure and another solvent constituted by a compound having an aromatic ring such as xylene, and a proportion by volume of the another solvent is 90% or less in the mixed solvent.

Abstract: It is an object of the present invention to provide a liquid crystal composition with high response speed without lowering various characteristics of a liquid crystal, such as voltage holding rate and phase transition temperature. One feature of the invention is that a nematic liquid crystal and an inert fluid containing fluorine (CmFn or CmFnO (n and m are natural numbers)) are mixed. Another feature of the invention is that a content of a fluorine-based inert solution (CmFn or CmFnO (n and m are natural numbers)) is 10 wt % or more to 60 wt % or less with respect to the nematic liquid crystal.

Abstract: The present invention relates to a chiral compound, and an article utilizing the same, represented by the following structures I-1, I-2, I-3, or 1-4: wherein the chiral compound demonstrates thermochromic temperature insensitivity.

Abstract: The present invention relates to a high-speed high-temperature nematic liquid crystal composition and a liquid crystal display comprising the same, particularly to a high-speed high-temperature nematic liquid crystal composition which comprises a nematic liquid crystal compound having an isothionate group on the end aromatic ring and having one or more kinds of fluorine atoms, and thus satisfies a high response speed property and has a high phase transition temperature of liquid crystal, a low operating voltage, and a broad nematic phase temperature range, and a liquid crystal cell comprising the same, and a liquid crystal display using the same.

Abstract: Presently described are microstructured articles such as a brightness enhancing film or optical turning film. The microstructured articles comprise a brightness enhancing polymerized structure comprising the reaction product of a composition comprising an organic component having at least one oligomeric urethane (meth)acrylate and surface modified silica nanoparticles.

Abstract: A light diffusion sheet for a display device includes a base layer having a base resin mixture of a methacrylate-styrene copolymer and a methylmethacrylate-styrene copolymer and about 0.2 to 20 ppwb of a first light diffuser, and at least one coating layer on the base layer, the coating layer including a methylmethacrylate-styrene copolymer base coating resin, about 0.1 to 30 ppwb of a second light diffuser, about 0.01 to 2 ppwb of an UV absorber, and about 0.001 to 10 ppwb of an antistatic agent.

Abstract: Conducting liquid crystal polymer matrix comprising carbon nanotubes aligned in the matrix is provided, along with use thereof and method of fabrication.

Abstract: A liquid crystal composition comprising a dichroic dye, a host liquid crystal and at least one kind of solid matter having an average particle diameter of 1 nm to 10 m, the dichroic dye having a substituent represented by the following formula (1): -(Het)j-{(B1)p-(Q1)q-(B2)r}n—C1:??Formula (1) wherein Het is an oxygen atom or a sulfur atom; B1 and B2 each independently represent an arylene group, a heteroarylene group, or a divalent cyclic aliphatic hydrocarbon group; Q1 represents a divalent linking group; C1 represents an alkyl group, a cycloalkyl group, an alkoxy group, an alkoxycarbonyl group, an acyl group, or an acyloxy group; j represents 0 or 1; p, q, and r represent an integer of 0 to 5, respectively; n represents an integer of 1 to 3; the sum of the groups represented by B1 and B2 is an integer of 3 to 10; when p, q and r are respectively 2 or greater, two or more of B1, Q1 or B2 may be the same or different; when n is 2 or greater, two or more of {(B1)p-(Q1)q-(B2)r} may be the same or different.

Abstract: A composition comprising at least one compound having a fluoro-aliphatic group and at least one hydrophilic group selected from the group consisting of a carboxyl group (—COOH), a sulfo group (—SO3H), a sulfato group (—OSO3H), a phosphonoxy group {—OP(?O)(OH)2} and salts thereof; at least one onium salt; and at least one liquid-crystal compound is disclosed.

Abstract: A novel optical film is disclosed. The film comprises an optically anisotropic layer formed of a composition comprising at least one liquid crystal compound and at least one polymer having a fluoro-aliphatic group and a hydrophilic group selected from the group consisting of a carboxyl group (—COOH), a sulfo group (—SO3H), a phosphono group {—PO(OH)2} and salts thereof; and a substrate supporting the layer.

Abstract: Reflective liquid crystalline polymer films having increased bandwidth have a single layer of liquid crystalline material with short, long, and medium pitch of the helical molecular structure of the liquid crystalline polymer. The films are easily produced by a readily reproducible and economic process of low complexity.

Abstract: A photopolymerizable composition comprising a polymerizable compound and a photopolymerization initiator, wherein the polymerizable compound is characterized by comprising (a) a bifunctional (meth)acrylic acid (thio)ester compound containing a sulfur atom in the molecule and (b) at least one of a (meth)acrylic acid ester compound represented by the general formula (1) or a bifunctional (meth)acrylic acid ester compound having a urethane linkage: wherein R1 and R2 are each independently a hydrogen atom or a methyl group; R3 and R4 are each independently an alkyl group, an aralkyl group, an aryl group or a halogen atom; m and n are each an integer of 0 to 2; X1 is an alkylidene group having 1 to 3 carbon atoms; and Y1 and Y2 are each independently a poly(oxyalkylene) group with the proviso that at least one of Y1 and Y2 is a poly(oxyalkylene) group having a hydroxy group.

Abstract: The present invention provides a novel diamine which is especially useful as a material for a resin for a liquid crystal alignment film, a polyimide precursor and a polyimide synthesized by using the diamine, and a treating agent for liquid crystal alignment containing such a polymer, which gives a liquid crystal alignment film having a high pretilt angle of liquid crystal, excellent thermal stability of the pretilt angle and small dependence of the pretilt angle on rubbing pressure. A diaminobenzene derivative represented by the formula (1): wherein X1 and X2 are cyclic groups, and X3 is selected from an alkyl group, an alkoxy group, a fluoroalkyl group, a fluoroalkoxy group, a fluorine atom, a chlorine atom, a bromine atom and a cyano group; a polyimide precursor and a polyimide synthesized by using the diaminobenzene derivative as a part of the material; and a treating agent for liquid crystal alignment containing at least one of the polymers.

Abstract: A method of making ordered nanostructured layers comprises (a) applying an aqueous composition comprising a chromonic material to the surface of a substrate, (b) applying shear orientation to the aqueous composition, (c) non-covalently crosslinking the resulting ordered nanostructured chromonic layer with a multivalent cation salt (d) exposing the resulting crosslinked ordered nanostructured chromonic layer to an acid selected from the group consisting of carbonic acid, phosphoric acid, lactic acid, citric acid, boric acid, sulfuric acid, and mixtures thereof in the presence of water to form an ordered nanostructured barrier layer.

Abstract: An optical film includes a selective visible light-absorbing layer including at least one dye having a maximum absorption wavelength in a range of about 470 nm to about 510 nm, the selective visible light-absorbing layer having a maximum light transmittance of about 60% or less at the maximum absorption wavelength of the dye and a full width at half maximum of about 50 nm or less.

Abstract: The invention relates primarily to a retardation film and a process for producing the retardation film, wherein a layer formed of a mixture of a photosensitive polymer and a low molecular weight compound is irradiated with linear polarized ultraviolet ray, ultraviolet ray including a perfectly polarized light component and a non-polarized light component, or a non-polarized ultraviolet ray to orient molecules thereby developing a retardation and the direction of the optical axis arbitrarily in the layer formed of a mixture.

Abstract: A light-diffusing film comprises about 90 wt. % to about 99.999 wt. % polycarbonate, wherein the polycarbonate comprises a yellowness index of about 0.8 to about 1.5 as measured in accordance with ASTM E313-73 (D1925); about 0.001 wt. % to about 3 wt. % light-diffusing particles; wherein weight percents are based on a total weight of the light-diffusing film; and wherein the light-diffusing film comprises a light transmission of about 45% to about 65% as measured in accordance with ASTM D1003-00, and a hiding power of 0 to about 0.5.

Abstract: A liquid crystal display device having a pair of substrates, a liquid crystal layer filled between the pair of substrates and a plurality of pixel electrodes and common electrodes formed on one of the pair of substrates for supplying an electric field to the liquid crystal layer. The liquid crystal display device is configured so that a response time between a lowest brightness level and a highest brightness level is less than 16.7 ms, and the liquid crystal layer contains a range of 40% or more weight percentage to 100% or less weight percentage of a constituent component with a dielectric anisotropy of ???1.

Abstract: Disclosed herein are light diffusing films, methods of making the same and articles using the same. In one embodiment, a light diffusing film is formed from a composition comprising: a polycarbonate, phosphite stabilizer, epoxy stabilizer, hindered phenol stabilizer, and light diffusing particles having a refractive index of about 1.3 to about 1.7. The film comprises a hiding power of 0 to about 0.5. In one embodiment, a method for producing a film comprises combining a polycarbonate, a phosphite stabilizer, an epoxy stabilizer, and light diffusing particles to form a combination, and forming the combination into the film.

Abstract: A broad band cholesteric liquid crystal film of the present invention comprises a cholesteric liquid crystal film obtained by polymerizing a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photopolymerization initiator (c) between two substrates with ultraviolet light, and has a reflection bandwidth of 200 nm or more. The broad band cholesteric liquid crystal film of the present invention has a broad reflection band and is excellent in durability.