Abstract: A liquid crystal display device (100) according to the present invention includes: an active matrix substrate (220) having a pixel electrode (224); a counter substrate (240) having a counter electrode (244); a vertical-alignment type liquid crystal layer (260); and alignment sustaining layers (210, 230) provided between the active matrix substrate (220) and the liquid crystal layer (260) and between the counter substrate (240) and the liquid crystal layer (260). The alignment sustaining layers (210, 230) contain a polymerization product (poa) resulting from polymerization of a polyfunctional monomer. At least one of the active matrix substrate and the counter substrate further includes an alignment film (110, 120) located on the liquid crystal layer side, the alignment film (110, 120) containing polyimide (pi) and a polymerization product (pob) resulting from polymerization of a polyfunctional monomer.

Abstract: A liquid crystal display device includes a pair of substrates, a liquid crystal between substrates and alignment layers disposed on the inner surface sides of the substrates. The alignment layer is made from a material including polyamic acid containing a diamine component and polyimide containing a diamine component different from the diamine component of the polyamic acid. The alignment layer is subjected to alignment treatment by irradiation of light. UV light can be irradiated in the oblique direction onto the alignment layer through a mask having openings. A reflecting plate can be arranged between a UV light source and the mask. Also, bank structures having a thickness from 0.1 to 0.15 ?m can be provided on the alignment layer of the TFT substrate.

Abstract: A liquid crystal alignment agent includes a polymer and an organic solvent for dissolving the polymer. The polymer is obtained by subjecting a diamine composition and a tetracarboxylic dianhydride compound to a polymerization reaction. The diamine composition includes a first diamine compound, a second diamine compound, and a third diamine compound as defined in the specification. A liquid crystal alignment film formed from the liquid crystal alignment agent and a liquid crystal display element including the liquid crystal alignment film are also disclosed.

Abstract: Disclosed therein are a photoalignment polyimide copolymer making it easier to form a liquid crystal alignment layer with excellences in alignment properties, thermal and structural stabilities, and adhesiveness to a substrate, and a liquid crystal alignment layer using the same. The photoalignment polyimide copolymer includes all the three types of repeating units each having a defined structure.

Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.

Abstract: The present invention provides a liquid crystal display device capable of reducing the probability of image sticking. The liquid crystal display device includes a pair of substrates and a liquid crystal layer between the substrates. At least one of the substrates includes an alignment film and a polymer layer on the alignment film. The polymer layer includes monomer units derived from at least two species of polymerizable monomers. The at least two species of polymerizable monomers include at least two species of monomers selected from the group consisting of: specific polyfunctional monomers and specific monofunctional monomers.

Abstract: To provide a liquid crystal aligning agent useful to obtain a liquid crystal alignment film excellent in liquid crystal alignment properties, alignment controlling power and rubbing resistance, having high voltage retention characteristics and having reduced charge accumulation, and a liquid crystal display device which is less susceptible to display failure, to lowering of contrast or to image persistence. A liquid crystal aligning agent comprising a low resistance polyimide precursor having a volume resistivity of from 1×1010 to 1×1014 ?cm when formed into a film, and a high alignment polyimide precursor or polyimide having a specific structure, and a liquid crystal display device employing this liquid crystal aligning agent.

Abstract: A liquid crystal display includes: a first substrate and a second substrate facing each other; a pair of field generating electrodes disposed on the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate and including liquid crystal molecules having positive dielectric anisotropy; and at least one alignment layer disposed between the first substrate and the second substrate, wherein the alignment layer includes a main chain and at least one side chain connected to the main chain, and the side chain includes a vertical functional group or a polar group.

Abstract: Disclosed is a liquid crystal alignment agent that includes a polymer including polyamic acid including a repeating unit represented by the following Chemical Formula 1, polyimide including a repeating unit represented by the following Chemical Formula 2, or a combination thereof. In Chemical Formulae 1 and 2, X1, X2, Y1 and Y2 are the same as defined in the detailed description.

Abstract: The present invention provides a liquid crystal reactive monomer on a polyimide surface of an alignment film and a liquid crystal panel. The liquid crystal reactive monomer has a hard core and is contained in a liquid crystal composition. The liquid crystal reactive monomer is represented by the formula (I) or the formula (II), and the molecular weight thereof is greater than or equal to 300. The solubility of the liquid crystal RMs is significantly improved in a liquid crystal matrix while the returning force of liquid crystal molecules is increased, so as to solve the image sticking issue, increase the polymerization capacity of the liquid crystal molecules, raise the curing speed of the curing reaction between the liquid crystal RMs and the polyimide surface and shorten the curing time, so that the purpose of energy saving and carbon reduction can be achieved.

Abstract: An alignment film (100) according to the present invention includes: a first alignment layer (102) containing a first polyimide (p1); and a second alignment layer (104) containing a polymerization product (po) resulting from polymerization of a polyfunctional monomer and a second polyimide (p2). The polyfunctional monomer is represented by general formula (1) P1-A1-(Z1-A2)n-P2 (in general formula (1), P1 and P2 each independently of the other are an acrylate, methacrylate, acrylamide, methacrylamide, vinyl, vinyloxy, or epoxy group; A1 and A2 each independently of the other represent a 1,4-phenylene, 1,4-cyclohexane, 2,5-thiophene, or naphthalene-2,6-diyl group; Z1 is a —COO— group, a —OCO— group, a —O— group, a —CONH— group or a single bond, where n is 0, 1, or 2).

Abstract: A liquid crystal display device superior in mass productivity and improved image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment and realizing stable alignment of liquid crystals, comprising: a pair of substrates 101 and 102, at least one of which is transparent; a liquid crystal layer 110? disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements 115 connected to the group of electrodes; and an orientation control film 109 disposed on at least one of the pair of substrates, wherein said orientation control film made of a photosensitive polyimide, a polyamide acid ester and a polyamide acid is given orientation control ability by being irradiated with substantially linearly polarized light.

Abstract: A liquid crystal display device includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film placed on at least one of the pair of substrates, in which the alignment control film is formed of polyimide and a precursor of the polyimide, each of the polyimide and the precursor of the polyimide contains, as a material, a specific cyclobutanetetracarboxylic acid dianhydride derivative and aromatic diamine, and the alignment control film is provided with alignment capability by photo-alignment treatment.

Abstract: A liquid crystal display device and a method for manufacturing the same are disclosed. In an embodiment of the present invention, a liquid crystal display device and a method of manufacturing the liquid crystal display device includes a first substrate that has a first electrode formed thereon, a second substrate that faces the first substrate, a liquid crystal layer that is formed between the first substrate and the second substrate, and a first alignment layer that is formed on the first substrate and is in contact with the liquid crystal layer. Here, the first alignment layer includes a first alignment base layer that is photoaligned, and a first alignment controlling layer that is extended from the inside of the first alignment base layer.

Abstract: A liquid crystal display includes: a first substrate and an opposing second substrate; an alignment layer formed on the first substrate and the second substrate; and a liquid crystal layer interposed between the first substrate and the second substrate. The alignment layer includes a copolymer including a dianhydride monomer and a diamine monomer.

Abstract: A liquid crystal alignment solution is provided, including at least one polymer selected from the group consisting of a polyamide acid-polyamide acid polymer represented by formula (A), a polyimide-polyamide acid polymer represented by formula (B) and a polyimide-polyimide polymer represented by formula (C), as defined in the contexts.

Abstract: A liquid crystal display (LCD) device includes at least one substrate; and an alignment layer over the substrate, wherein the alignment layer includes material having a main chain adapted to be aligned by a rubbing process and a photo-reactive side chain adapted to be aligned by irradiation.

Abstract: A liquid crystal (LC) alignment agent is disclosed, which comprises polymer (A), tertiary hydramine (B) and epoxy group-containing compound (C). The LC alignment agent is added with a tertiary hydramine (B) and has an epoxy value of 0.065 to 0.900. The LC alignment agent can be employed to form a LC alignment film for enhancing the resulted LC alignment film with better rubbing resistance. A LC display (LCD) device that uses the LC alignment film has better voltage holding ratio (VHR) and process stability.

Abstract: 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.

Abstract: Disclosed is a liquid crystal orientating agent which contains a liquid crystal orientating polyorganosiloxane obtained by reacting a specified reactive polyorganosiloxane typified by the hydrolysis condensate of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane and a reactive compound which includes a specified compound typified by stearic acid. The liquid crystal orientating agent of this invention can form liquid crystal orientating films which have excellent liquid crystal orientating properties, a high level of heat resistance and light resistance, exhibit little reduction of voltage retention even in high temperature environments and when irradiated with light of high intensity, and excellent residual image characteristics, and it also has excellent storage stability.

Abstract: The present invention relates to a light-sensitive compound, a polymer formed by using the compound, and a production method of the compound and polymer. More particularly, the present invention relates to a unit compound that exhibits light-sensitivity with respect to three different wavelengths, a polymer having light-sensitive, which is polymerized by using the unit compound as a monomer, and a production method of the compound and polymer. The light-sensitive compound and the polymer according to the present invention may be usefully applied to an optical film.

Abstract: A photo-alignment material, a liquid crystal display device using the photo-alignment material, and a manufacturing method. The photo-alignment material is a polymer having a photo-reactive ethenyl group on a main chain. When used as a photo-alignment layer, the photo-alignment material enables improved alignment stability against external shocks, light, and heat. The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer formed between the first and second substrates, and a photo-alignment layer formed at least on the first substrate, with the photo-alignment layer formed from a photo-alignment material having an ethenyl group at a main chain.

Abstract: Disclosed is a liquid crystal photo-alignment agent including polyamic acid or a polyimide including a first structural unit derived from a photo-diamine represented by the following Chemical Formula 1, a second structural unit represented by the following Chemical Formula 2 or a polymer compound combination thereof, and a solvent. In Chemical Formulae 1 and 2, each substituent is the same as defined in the detailed description.

Abstract: The invention relates to an alignment layer with improved adhesion to liquid crystal (LC) films, to a precursor material used for the preparation of such a layer, to a laminate comprising such a layer and at least one LC polymer film, and to the use of the alignment layer and the laminate for optical, electrooptical, decorative or security uses and devices, wherein the alignment layer and the precursor material comprise at least one reactive mesogen in monomeric, oligomeric or polymeric form.

Abstract: Disclosed is a liquid crystal alignment agent that includes a polymer comprising polyamic acid including a repeating unit represented by the following Chemical Formula 1, polyimide including a repeating unit represented by the following Chemical Formula 2, or a combination thereof. In Chemical Formulae 1 and 2, X1, X2, Y1 and Y2 are the same in the detailed description.

Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a side chain containing a fluorine atom, the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer films (6) and (7) each being made of the polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer fil

Abstract: An alignment layer according to an exemplary embodiment of the present invention includes a polyimide, wherein the polyimide is derived from a composition including a dianhydride-based compound, and a compound represented by a Chemical Formula 1: wherein, in the above Chemical Formula 1, X1 and X2 are independently F, Cl, or CN, and R1 is a substituted or non-substituted C1-C12 alkyl group, a substituted or non-substituted C1-C12 alkoxy group, a substituted or non-substituted C1-C12 halogen-containing alkyl group, a substituted or non-substituted C1-C12 halogen-containing alkoxy group, or a combination thereof.

Abstract: The present invention provides a liquid crystal alignment agent and a liquid crystal alignment film formed therefrom, as well as a liquid crystal display element provided with the liquid crystal alignment film. More specifically, the present invention provides a liquid crystal alignment agent and liquid crystal alignment film formed therefrom, as well as a liquid crystal display element provided with the liquid crystal alignment film without image sticking problems and having superior voltage holding ratio. The liquid crystal alignment agent includes: a polymer (A) obtained from a reaction between tetracarboxylic dianhydride compound and diamine compounds, an epoxy compound (B), and an organic solvent (C). Wherein the liquid crystal alignment agent is coated on a glass substrate, and heated for 15 minutes at 220° C. to forth a hard coating film. The hard coating film is extracted for 72 hours by using acetone at 60° C.

Abstract: The present invention provides a liquid crystal photoalignment agent that includes a compound selected from the group consisting of a polyamic acid having a predetermined chemical formula, a polyimide polymer having a predetermined chemical formula, and a combination thereof, and a polyimide photopolymer. The liquid crystal photoalignment agent shows a long life-span, stably maintains a pretilt angle, and shows improved after-image characteristics, liquid crystal alignment properties, and chemical resistance.

Abstract: A photoalignment material and a method of manufacturing of a display substrate using the photoalignment material are disclosed. The photoalignment material includes a photoalignment polymer, a photoalignment additive, and an organic solvent. When the photoalignment additive is used, a side reaction due to ultraviolet (UV) light may be prevented, and the stability of alignment layer may be improved.

Abstract: The invention relates to an alignment layer for aligning liquid crystal molecules, with improved adhesion to liquid crystal (LC) films, to a composition containing a precursor material used for the preparation of such a layer, to a laminate comprising such a layer and at least one LC polymer film, and to the use of the alignment layer and the laminate for optical, electrooptical, decorative or security uses and devices, wherein the alignment layer and the precursor material comprise at least one reactive mesogen in monomeric, oligomeric or polymeric form.

Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a functional group represented by at least one of General Formulae (1) through (5), the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (6) through (8), the polymer films (6) and (7) each being (i) made of the polymerizable monomer represented by at least one of Ge

Abstract: A liquid crystal display device includes a pair of substrates, a liquid crystal between substrates and alignment layers disposed on the inner surface sides of the substrates. The alignment layer is made from a material including polyamic acid containing a diamine component and polyimide containing a diamine component different from the diamine component of the polyamic acid. The alignment layer is subjected to alignment treatment by irradiation of light. UV light can be irradiated in the oblique direction onto the alignment layer through a mask having openings. A reflecting plate can be arranged between a UV light source and the mask. Also, bank structures having a thickness from 0.1 to 0.15 ?m can be provided on the alignment layer of the TFT substrate.

Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.

Abstract: The present invention is directed to a VA-mode liquid crystal display panel wherein, by radiating light such as ultraviolet rays to a first alignment film, main chains in molecules of the alignment film are arranged to form a first slow axis. By also radiating the light to a second alignment film, a second slow axis is formed. The first slow axis and the second slow axis are arranged to cross each other. When an electric field is applied to a liquid crystal layer, liquid crystal molecules tilt in the direction which crosses the extending direction of projections formed on a substrate. The projections are formed such that the direction along which the liquid crystal molecules tilt and a first slow axis or a second slow axis differ from each other.

Abstract: Disclosed are a liquid crystal alignment agent, and a liquid crystal alignment film and a liquid crystal display (LCD) including the same. The liquid crystal alignment agent includes a polymer of polyamic acid, a polyimide, or a combination thereof, and an epoxy compound represented by the following Chemical Formula 1. In the above Chemical Formula 1, each substituent is the same as defined in the specification.

Abstract: This invention provides alignment materials for liquid crystal display device of vertical alignment mode and methods for the preparation of the same, and more particularly, it provides diaminobenzene derivatives represented by the following formula 1: wherein n is an integer of 1 to 5 and R is an alkyl or alkoxy group of 3 to 5 carbon atoms, which align liquid crystal in uniform and vertical way, have not only excellent mechanical properties such as heat resistance and surface strength but also high pretilt angles of liquid crystal and in particular, can make response rate of liquid crystal fast, methods for the preparation of the same and liquid crystal alignment films using the same.

Abstract: A liquid crystal display is provided that includes a first substrate; a second substrate facing the first substrate; a field generating electrode disposed on at least one of the first substrate and the second substrate; an alignment layer disposed on the field generating electrode; and a liquid crystal layer interposed between the first substrate and the second substrate and including a liquid crystal and an alignment polymer. The alignment layer initially contains an alignment material including an initiator, and the alignment polymer initially contains an alignment aid.

Abstract: The present invention relates to a liquid crystal aligning agent containing a radiation sensitive polyorganosiloxane which is obtained by reacting at least one selected from the group consisting of a polyorganosiloxane having a recurring unit represented by the following formula (1), a hydrolysate thereof and a condensate of the hydrolysis with a cinnamic acid derivative having at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, —SH, —NCO, —NHR (R is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms), —CH?CH2 and —SO2Cl: (in the formula (1), X1 is a monovalent organic group having an epoxy group, and Y1 is a hydroxyl group, an alkoxyl group having 1 to 10 carbon atoms, an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms).

Abstract: Provided is a liquid crystal (LC) device and method thereof. The device comprises (i) a body of liquid crystal, (ii) a first layer comprising a first material, and (iii) a second layer comprising a second material; wherein the first layer is located between the body of liquid crystal and the second layer; the first layer alone aligns the liquid crystal in a first orientation; the second layer alone aligns the liquid crystal in a second orientation; and the first orientation is different from the second orientation. With optimized first layer thickness, the invention can be used in sensor applications to improve detection sensitivity, and in LCD applications with enhanced control over LC pretilt transition.

Abstract: [Object] To obtain an alignment film having excellent alignment stability of a liquid crystal and a high voltage holding ratio by application of linearly polarized light to a polyamic acid having a specific structure and then imidization under heat. [Solving Means] A photo-alignment film is obtained by: applying a polyamic acid solution on a substrate, where the polyamic acid contains, in its main chain, at least a group having unsaturated groups having 1 to 3 carbon-carbon double bonds or 1 to 4 triple bonds; vaporizing a solvent from a film formed; applying linearly polarized light to the film after the vaporization of the solvent; and then heating the film to imidize the polyamic acid.

Abstract: A liquid crystal display including: a first substrate and a second substrate facing each other; an alignment layer disposed on one of the first substrate and the second substrate and including a vertical photo-alignment material which includes a first vertical functional group and a photo-reactive group, and a major alignment material which does not include the photo-reactive group; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein a ratio of a molar concentration of the vertical photo-alignment material to the molar concentration of the major alignment material increases in a direction towards a surface of the alignment layer adjacent to the liquid crystal layer.

Abstract: A liquid crystal display (LCD) device includes at least one substrate; and an alignment layer over the substrate, wherein the alignment layer includes material having a main chain adapted to be aligned by a rubbing process and a photo-reactive side chain adapted to be aligned by irradiation.

Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other; a liquid crystal layer disposed between the first display panel and the second display panel and including pre-tilted liquid crystal molecules and a first compound derived from a reactive mesogen; and an alignment layer positioned between the first display panel and the second display panel, wherein the alignment layer includes a polyimide derived from a composition including a dianhydride-based compound, and a compound represented by the following Chemical Formula 1. In the above Chemical Formula 1, R1 is a substituted or non-substituted C1-C8 alkyl group, R2 is a substituted or non-substituted C8-C30 alkyl group, and A1 is a functional group including a substituted or non-substituted aliphatic ring and a substituted or non-substituted aromatic ring.

Abstract: A liquid crystal device includes: a circuit substrate; a counter substrate disposed so as to be opposed to the circuit substrate; a liquid crystal layer interposed between the circuit substrate and the counter substrate, the liquid crystal layer showing vertical alignment as an initial alignment state; a first alignment layer manufactured on a side of the counter substrate using a coating process, the side facing the liquid crystal layer, the first alignment layer having a vertical alignment function; and a second alignment layer manufactured on a side of the circuit substrate using a vacuum process, the side facing the liquid crystal layer, the second alignment layer generating a pretilt.

Abstract: Disclosed is a liquid crystal display device including: a first substrate and a second substrate, one of which is transparent; a liquid crystal layer disposed between the first substrate and the second substrate; a group of electrodes for applying an electric field to the liquid crystal layer, which is formed on one of the first substrate and the second substrate; a plurality of active elements connected to the group of electrodes; and an alignment film disposed on one of the first substrate and the second substrate, wherein the alignment film contains a polyimide and a precursor of the polyimide, each of which is formed from a diamine and an acid anhydride, and the diamine contains a first diamine having an acidic group and a second diamine having a nitrogen atom-containing functional group other than two amino groups.

Abstract: A method of fabricating a liquid crystal display (LCD) device includes preparing at least a first substrate, coating an alignment material on at least the first substrate, aligning a main chain of the alignment material in a predetermined direction, and irradiating polarized ultraviolet (UV) rays onto the alignment material whose main chain has been aligned in the predetermined direction to form an alignment layer.

Abstract: The invention is directed to polyimide based adhesives having a coefficient of thermal expansion (“CTE”) equal to or below 50 ppm/° C. The adhesives of the present invention contain a polyimide base polymer present in the overall adhesive in an amount from 25 to 95 weight percent. The polyimide base polymer has a glass transition temperature (“Tg”) in a range of from about 150 to about 300° C. and typically has a coefficient of thermal expansion above 50 ppm/° C. The polyimide based adhesives of the invention also contain an aramid micro fiber filler in an amount from 5 to 75 weight percent, based upon the total weight of the polyimide based adhesive. The fiber filler can be used to lower CTE of the overall adhesive to match (or nearly match) the CTE of other materials like metal, silicon wafers, other polymers (including polyimide) and the like.

Abstract: Provided are a liquid crystal film, a method of manufacturing a liquid crystal film, a method of controlling an average tilt angle of the liquid crystal film, a polarizing plate, and a liquid crystal display device. A liquid crystal film that has excellent properties including durability and an optical property and is capable of being effectively used for various uses may be provided. In addition, the physical properties of the liquid crystal film may be easily controlled according to a desired use.

Abstract: Disclosed is an epoxy compound for a liquid crystal photo-alignment agent, a liquid crystal photo-alignment agent, and a liquid crystal photo-alignment film. The epoxy compound is represented by the following Chemical Formula 1. In the above Chemical Formula 1, each substituent is the same as defined in the specification. Since the epoxy compound according to an embodiment of the present invention may be prepared through a simple manufacturing process, it is possible to provide a liquid crystal photo-alignment agent and a liquid crystal photo-alignment film that are economical and have excellent substrate printability and reliability, and superb photoelectric characteristics.