76results about How to "Excellent afterimage characteristics" patented technology

The invention provides a liquid crystal aligning agent, a liquid crystal alignment film and a liquid crystal display element. The liquid crystal aligning agent is a solution containing polyamide acid or derivatives thereof obtained by reacting tetracarboxylic dianhydride with diamine and a solvent, and the solvent contains at least one of compounds represented by the following formula (A). By employing the liquid crystal aligning agent, viscosity chages are not liable to generate at the room temperature, when being coated, the liquid crystal aligning agent is not sunken, when be produced, the liquid crystal aligning agent is not whitened. In addition, the orientation stability of liquid crystal molecules of a liquid crystal alignment film formed by the liquid crystal aligning agent is good. Furthermore, the residual image features of a liquid crystal display element provided with the liquid crystal alignment film are excellent.

Provided is an in-plane-switching liquid-crystal display element having superior burn-in properties and to which an orientation control ability has been imparted at a high efficiency. The present invention achieves same by means of a polymer composition containing (A) a photosensitive side-chain polymer that expresses liquid-crystal properties in a predetermined temperature range, (B) at least one type of polymer selected from the group consisting of a polyimide and a precursor thereof, and (C) an organic solvent. In particular, the present invention achieves same by means of a method that is for producing a substrate having a liquid-crystal orientation film and obtains a liquid-crystal orientation film for an in-plane-switching liquid-crystal display element, to which an orientation control ability has been imparted, by means of having: [I] a step for forming a coating film by applying the polymer composition onto a substrate having a conductive film for in-plane-switching; [II] a step for radiating polarized ultraviolet rays at the coating film obtained in step [I]; and [III] a step for heating the coating film obtained in step [II].

The present invention provides a liquid crystal aligning agent which has the following advantages: low blur characteristic, low residual DC voltage and excellent voltage retention rate. The liquid crystal aligning agent comprises at least one polymer which comprises a polymer A and a polymer B. The polymer A is polyimide-polyamide acid which is represented by a formula A, and the polymer B is polyimide-polyamide acid which is represented by a formula 2.

The invention relates to a diamine, a polyamic acid or a derivative thereof, a liquid crystal alignment agent, a liquid crystal alignment film, and a liquid crystal display element. The present invention relates to a liquid crystal alignment agent containing a polyamic acid or a derivative thereof, and the polyamic acid or its derivative is obtained by reacting a tetracarboxylic dianhydride with a diamine containing a compound represented by the formula (1). By using the liquid crystal alignment agent of the present invention, it is possible to form a liquid crystal alignment film of a liquid crystal display device which does not deteriorate under strong light exposure for a long period of time.

The present invention relates to a Gia Min, Polya Mick acid or its derivative, a rubbing agent, a film for liquid crystal display , and a liquid crystal display element. The present invention relates to a polyamide acid or ramification thereof obtained through diamine reaction of at least one in the Gia Min in the tetracarboxylic acid dianhydride and an including format (1).the view angle features is good, and the display quality cannot be reduced for exposing under the strong light for a long time. R is hydrogen, and -OH, the carbon number is 1-6 alkyl group or the alkoxy number is 1-6, the X1 and the X2 independently have alkylene of the carbon number is 1-8 and / or 2 organic group of the phenylene.

The invention provides a liquid crystal aligning agent, a liquid crystal alignment film and a liquid crystal display device. The liquid crystal alignment agent can produce the liquid crystal display element with features of high speed response and excellent voltage holding rate, afterimage characteristic, light resistance and excellent uniform coating property. The liquid crystal aligning agent, comprises (A) at least one polymer selected from a group consisting of polyamic acid, polyimide, (methyl ) acrylic acid polymer, polysiloxane and poly(amic ester); and the polymer has groups shown by the following formula (1), wherein the group R3 is preferably the group shown by the following formula (2).

The present invention addresses the problem of providing a novel polymer composition for obtaining a liquid crystal alignment film for an in-plane-switching-type liquid crystal display element, the polymer composition having excellent image persistence characteristics and imparting alignment control performance with high efficiency, and a liquid crystal alignment film for an in-plane-switching-type liquid crystal display element that uses the polymer composition. The present invention solves the abovementioned problem by a polymer composition containing (A) a photosensitive side-chain macromolecule exhibiting liquid crystal properties in a predetermined temperature range, (B) polyurea, and (C) an organic solvent.

Provided is a method for manufacturing a liquid crystal alignment film whereby anisotropy is increased and unevenness caused by processing can be suppressed. A film obtained by applying a liquid crystal alignment agent containing at least one type of polymer selected from the group consisting of a polyimide and a precursor of the polyimide on a substrate and firing the product is irradiated with polarized radiation, then treated by contact with a solution containing at least one type of organic solvent selected from the group consisting of formula (A-1), formula (A-2), formula (A-3), formula (A-4), and formula (A-5). (In the formulas, A1 represents a hydrogen atom or an acetyl group, A2 represents a C1-6 alkyl group, R2 represents a hydrogen atom or a methyl group, n represents 1 or 2, A3 represents a C1-4 alkyl group, R3 and R4 represent a hydrogen atom or a methyl group, A5 and A6 represent a C1-4 alkyl group, and A6 represents a C3-6 alkyl group or cycloalkyl group.)

The present invention provides a novel polymer composition whereby alignment control performance is imparted at high efficiency, and whereby a liquid crystal alignment film for an in-plane switching liquid crystal display element having excellent image persistence characteristics is provided, and a liquid crystal alignment film for an in-plane switching liquid crystal display element using the same. The present invention relates to a polymer composition containing (A) a photosensitive side-chain polymer expressing liquid crystal properties in a predetermined temperature range, (B) a polymer produced using two or more types of diamine compounds and at least one species selected from a diisocyanate component and a tetracarboxylic acid derivative, and (C) an organic solvent. The present invention also relates to a method for producing a substrate having a liquid crystal alignment film, the method having a step for applying the composition to a substrate having an electroconductive film for in-plane switching and forming a coating film, a step for irradiating the resultant coating film with polarized ultraviolet rays, and a step for heating the resultant coating film.

Disclosed is a liquid crystal aligning agent containing a radiation-sensitive polyorganosiloxane which is obtained by reacting a cinnamic acid derivative having at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, -SH, -NCO, -NHR (wherein R represents a hydrogen atom or an alkyl group having 1-6 carbon atoms), -CH=CH2 and -SO2Cl with a polyorganosiloxane having an oxethane ring.

The present invention provides an in-plane-switching liquid crystal display element which exhibits excellent burn-in properties and efficiently controls orientation. To this end, the present invention provides a polymer composition containing: (A) a photosensitive side-chain polymer which exhibits liquid-crystal properties within a prescribed temperature range; (B) a cross-linking compound having, per molecule, two or more groups of at least one type of substituent group selected from a hydroxy group, a hydroxyalkyl group, an alkoxy group, an alkoxy-alkyl group, an oxirane group, an epoxy group, an isocyanate group, an oxetane group, a cyclocarbonate group, a trialkoxysilyl group, and a polymerizable unsaturated bond group; and (C) an organic solvent. Specifically, the present invention provides a method which makes it possible to produce a substrate having a liquid crystal orientation membrane, and to obtain a liquid crystal orientation membrane for use in an in-plane-switching liquid crystal display element having the ability to control orientation, by having the following steps: [I] a step for forming a film by applying said composition onto a substrate having a conductive film for in-plane switching; [II] a step for irradiating the film obtained in [I] with polarized ultraviolet rays; and [III] a step for heating the film obtained in [II].

The present invention provides: an in-plane switching liquid crystal display element which is provided with alignment control ability with high efficiency and has excellent image burn-in characteristics; and a novel composition for producing the liquid crystal display element. The present invention solves the above-described problem by a composition which contains (A) a photosensitive side-chain polymer which exhibits liquid crystallinity within a specific temperature range, (B) a compound that has 2-6 nitrogen atoms, to which at least one hydroxyalkyl group is bonded, in each molecule, and (C) an organic solvent.

Provided are: a liquid crystal alignment film which is able to be suppressed in separation of the film or occurrence of foreign substances caused by a physical impact, while enhancing transmittance characteristics of an element and having excellent afterimage characteristics by alternating-current driving; and a liquid crystal aligning agent. A liquid crystal aligning agent which contains a component (A) and a component (B) described below as well as a solvent that dissolves these components. Component (A): a compound represented by formula (1) (In the formula, P has at least one group wherein a carbon atom is substituted by at least two nitrogen atoms, and at least one of the nitrogen atoms is substituted by a monovalent thermally cleavable group having 1-24 carbon atoms, said monovalent thermally cleavable group being substituted by a hydrogen atom by means of heat; X represents a single bond or the like; and Q represents a benzene ring or the like.) Component (B): at least one polymer that is selected from the group consisting of polyimide precursors and polyimides

The present invention provides a highly reliable in-plane switching liquid crystal display element which is provided with alignment control ability at high efficiency and has excellent screen burn-in characteristics. The present invention achieves the above-described objective by a method for producing a substrate having a liquid crystal alignment film, in which a liquid crystal alignment film for in-plane switching liquid crystal display elements provided with alignment control ability is obtained by performing: [I] a step for forming a coating film by applying a polymer composition to a substrate having a conductive film for in-plane switching, said polymer composition containing (A) a photosensitive side-chain polymer which exhibits liquid crystallinity within a predetermined temperature range and (B) an organic solvent; [II] a step for irradiating the coating film obtained in step [I] with polarized ultraviolet light having an extinction ratio of 10:1 or more; and [III] a step for heating the coating film obtained in step [II].

Provided are a liquid crystal alignment agent enabling the forming of a liquid crystal alignment film having high rubbing resistance, the liquid crystal alignment film obtained from the liquid crystal alignment agent, and a liquid crystal display element having the liquid crystal alignment film. The present invention is characterized in containing: at least one polymer selected from the group consisting of a polyimide precursor and a polyimide obtained by imidizing the polyimide precursor; and a compound having the block isocyanate group represented by formula (1). In formula (1), Z is a C1-3 alkyl group, a hydroxyl group, or an organic group represented by formula (2), and at least one Z is the organic group represented by formula (2).

A radiation image detector includes: a photoconductive layer that generates electric charges when irradiated by recording electromagnetic waves which have passed through an electrode layer; and detecting electrodes, for detecting signals corresponding to the electric charges generated in the photoconductive layer. The radiation image detector further includes: dielectrics that cover the edges of the detecting electrodes, the edges being the side surfaces and portions of surfaces continuous with the side surfaces of the detecting electrodes, that face the photoconductive layer; and a charge injection preventing layer, which is a conductor with respect to electric charges of the same polarity as the electric charges accumulated during recording of the image information, and an insulator with respect to electric charges of the opposite polarity from the accumulated electric charges, provided to cover at least the surfaces of the detecting electrodes that face the photoconductive layer which are not covered by the dielectric.

The present invention addresses the problem of providing a horizontal electric field drive-mode liquid crystal display element to which an alignment control function is imparted with a high efficiency and which has excellent reliability including seizing properties and a voltage retention rate. According to the liquid crystal display element, the problem can be solved by a polymer composition comprising (A) a photosensitive side chain polymer and (B) an organic solvent, wherein the (A) photosensitive side chain polymer can exhibit liquid crystallinity in a predetermined temperature range, and the lower limit and the upper limit of the temperature range in which the liquid crystallinity is exhibited are 150 DEG C or higher and 200 DEG C or higher, respectively.

An imaging element is provided with at least a first electrode, a second electrode, an organic photoelectric conversion layer and a carrier blocking layer. The carrier blocking layer is formed of a material having structural formula (1), and has a thickness of from 5*10-9 m to 1.5*10-7 m.

The present invention provides a liquid crystal aligning agent which enables the achievement of a liquid crystal alignment film that has high film hardness, good afterimage characteristics and the like. A liquid crystal aligning agent which contains the component (A) and the component (B) described below, and an organic solvent. Component (A): A polyimide which is an imidized product of a polyimide precursor that is a reaction product of a tetracarboxylic acid derivative component and a diamine component containing a diamine having a structure of formula (1), and which has an imidization rateof from 20% to 80%. (In the formula, * represents a bond with another atom or group.) Component (B): A compound which has two or more crosslinkable functional groups.

Provided are a novel polymer composition for obtaining a liquid crystal alignment film, a liquid crystal alignment film which uses the same, and a novel monomer. The present invention provides a polymer composition containing (A) a photosensitive-side-chain-type polymer exhibiting liquid crystal properties in a predetermined temperature range, and (B) an organic solvent, wherein the polymer composition is characterized in that a resin as component (A) contains a side chain represented by formula (a). (In formula (a): L is a C1-16 straight-chain or branched-chain alkylene; X represents CH2-CH2,CH=CH, or C C; Y1 each independently represents a phenylene group or the like; Y2 represents -COOH, -CR3=CR4-COOH, -CR5=CR6-CO-O-Y3, or -O-CO-CR5=CR6-Y3; R3, R4, R5, and R6 each independently represents a hydrogen atom or a methyl group, and Y3 represents a phenyl group or the like.)

The present invention provides an in-plane-switching liquid-crystal display element having superior burn-in properties and to which an orientation control ability has been imparted at a high efficiency. The present invention achieves same by means of a method that is for producing a substrate having a liquid crystal orientation film for an in-plane-switching liquid-crystal display element to which an orientation control ability has been imparted and that obtains the liquid crystal orientation film by means of having: [I] a step for forming a coating film by applying onto a substrate having a conductive film for in-plane switching a polymer composition containing (A) a photosensitive side-chain polymer exhibiting liquid crystal properties in a predetermined temperature range and (B) an organic solvent; [II] a step for radiating polarized ultraviolet rays at the coating film obtained in [I]; [III] a step for heating the coating film obtained in [II]; and [IV] a step for cooling the coating film heated in [III] to a temperature less than the glass transition temperature of the surface of the coating film, and then re-heating to a temperature that is at least the glass transition temperature.

A photoelectric conversion element according to an embodiment of the present disclosure includes: a first electrode; a second electrode that is disposed to be opposed to the first electrode; and an organic photoelectric conversion layer that is provided between the first electrode and the second electrode and includes one organic semiconductor material. The organic photoelectric conversion layer includes at least one or more domains (D1, D2, and D3) in a horizontal cross section. The one or more domains (D1, D2, and D3) are each formed by using the one organic semiconductor material.

A liquid crystal alignment agent is provided which, even when reducing the light irradiation amount in alignment treatment by the photo-alignment method, enables obtaining excellent afterimage characteristics in an IPS-driven or FFS-driven liquid crystal display element; a production method of the liquid crystal alignment agent, a liquid crystal alignment film obtained therefrom, and a liquid crystal display element provided therewith are also provided. This liquid crystal alignment agent contains a polyimide, which is the imidized product of a polyimide precursor obtained from a polycondensation reaction of: a tetracarboxylic acid component that contains tetracarboxylic dianhydride represented by formula (1), or a derivative thereof; and a diamine component that contains a first diamine represented by formula (3) and a second diamine represented by formula (4). (X1 is a structure represented by formula (X1-1) or (X1-2).) R3-R12 are independently a hydrogen atom, a halogen atom, an alkyl group of 1-6 carbons, an alkenyl group of 2-6 carbons, an alkynyl group of 2-6 carbons, a monovalent organic group of 1-6 carbons containing a fluorine atom, or a phenyl group, but at least one ofR3-R6 is a group in the aforementioned definition other than a hydrogen atom.) (The A2's are independently a halogen atom, a hydroxyl group, an amino group, a thiol group, a nitro group, a phosphate group, or a monovalent organic group of 1-20 carbons, a is an integer 0-4, if there are multiple A2's, then the structure of the A2's may be the same or different.

The present invention provides a polymer composition that includes: [ I ] (A) a photosensitive branched polymer that exhibits crystallinity in a prescribed temperature range, said polymer having a side chain represented by formula (0) and further having a side chain (a) having a group selected from the group consisting of nitrogen-containing aromatic heterocyclic groups, amide groups, and urethane groups; and (B) an organic solvent. The invention further provides a method for producing a substrate that has a liquid crystal alignment film, the method having a step for forming a coating film by applying the composition to a substrate having a conductive film for driving a transverse electric field, a step for irradiating the obtained coating film with polarized UV rays, and a step for heating the obtained coating film. The invention provides a liquid crystal alignment film with excellent burn-in properties, to which an alignment control function has been imparted with high efficiency, due to the polymer composition and a transverse electric field driving liquid crystal display element.

The present invention provides a liquid crystal aligning agent and a forming method thereof, a liquid crystal alignment film and a forming method thereof, a phase difference film and a manufacturing method thereof, and a liquid crystal display device and a manufacturing method thereof. The liquid crystal aligning agent contains at least one polymer selected from the group consisting of a polyamide acid obtained by reacting the tetracarboxylic dianhydride and the diamine, an imidize polymer of the polyamide acid and the esterification polymer of the polyamide acid, and the tetracarboxylic dianhydride comprises a trans-cyclopentane tetracarboxylic acid dianhydride. The liquid crystal aligning agent provides the liquid crystal alignment film which has an excellent liquid crystal aligning performance, does not cause the degradation of an electric characteristic even by radiating the light and applying the thermal stress, and also does not generate an incidental image on the condition of long time driving, and also has an excellent printing performance.

The present inventive amplified solid-state image pickup devece two-dimensionally arranges a plurality of pixels, which include a second conductivity type photodiode part (1) formed in a first conductivity type well region and an amplifying transistor (6) for amplifying charges accumulated on a photodiode part and outputting them. Furthermore, in the region of the photodiode part, a contact (2) is arranged in a pixel for supplying the well region with a reference voltage. Thus, afterimage characteristics are improved and rational GND contact arrangement in the pixel, not affecting the optical characteristics, is provided.

The present invention provides a highly efficient in-plane-switching-type liquid crystal display element endowed with alignment controllability and having excellent ghosting characteristics. The present invention provides a method for manufacturing a substrate having a liquid crystal alignment film, the method having: [I] a step for applying, on a substrate having a conductive film for in-plane switching, a polymer composition containing (A) a photosensitive side-chain polymer exhibiting liquid crystal properties in a predetermined temperature range, (B) di-isobutyl carbinol, and (C) an organic solvent and forming a coating film; [II] a step for irradiating the coating film obtained in [I] with polarized ultraviolet rays; and [III] a step for heating the coating film obtained in [II]; whereby is obtained a liquid crystal alignment film for an in-plane-switching-type liquid crystal display element endowed with alignment controllability.

The present invention provides a highly reliable transverse electric field driving type liquid crystal display element which is provided with alignment control ability at high efficiency and has excellent screen burn-in characteristics. The present invention provides a method for producing a substrate having a transverse electric field driving type liquid crystal alignment film, in which a liquid crystal alignment film for transverse electric field driving type liquid crystal display elements provided with alignment control ability is obtained by performing: [I] a step for forming a coating film by applying a polymer composition to a substrate having a conductive film for transverse electric field driving, said polymer composition containing (A) a photosensitive side-chain polymer which exhibits liquid crystallinity within a predetermined temperature range, and which has one or more repeating units that are selected from among cyclic amine structures wherein two carbon atoms adjacent to a nitrogen atom respectively have two substituents represented by formula (S) (wherein R11 represents a single bond or the like, X represents a single bond and R12 represents a hydrocarbon group), and (B) an organic solvent; [II] a step for irradiating the coating film obtained in step [I] with polarized ultraviolet light; and [III] a step for heating the coating film obtained in step [II].-R11-X-R12(S).

The invention provides a liquid crystal alignment agent, a liquid crystal alignment film, a liquid crystal display element, polyamide acid and imidized polymers thereof, and a diamine compound. The liquid crystal alignment agent comprises the polyamide acid for selecting a structure shown by formula (1) and freely at a main chain and at least one polymer of a group assembled by the imidized polymers thereof.