An optical film transfer body including a substrate film, and an optically anisotropic layer that is formed on the substrate film by curing a composition containing a photopolymerizable liquid crystal compound, wherein the optically anisotropic layer contains 25% by weight or less of the photopolymerizable liquid crystal compound; an optical film including, in this order, an adherend, an adhesive layer, and an optically anisotropic layer, wherein the adhesive layer is a layer formed by curing a photocurable adhesive, the optically anisotropic layer is a layer formed by curing a composition containing a photopolymerizable liquid crystal compound, and the optically anisotropic layer contains 25% by weight or less of the photopolymerizable liquid crystal compound; as well as a method for producing an optical film and an organic electroluminescent display device.

Disclosed are an organic thin film transistor and a method for preparing the same, an array substrate and a display device. An organic semiconductor layer of the organic thin film transistor is formed on an anisotropic insulating layer, this guarantees that the organic semiconductor layer has a crystallization direction with a high degree of order and the organic semiconductor layer has a specific alignment, thus carrier mobility can be improved, so that the performance of the organic thin film transistor can be upgraded. Moreover, the process of preparing the insulating layer has advantages of simple process, large area and low cost, etc., and the thickness of the anisotropic insulating layer manufactured is small; since there exists no mechanical friction, there exists no badness caused by particles generated by friction.

Light emitting electrochemical cell devices comprising chiral liquid crystalline materials. The chiral liquid crystalline material mixtures of the devices function as both electrolytes and as light emitting materials. The chiral liquid crystalline material mixtures also form photonic crystal structures creating a photonic stop band. The presence of the photonic stop band enables the light emitting electrochemical cell devices to emit light with improved energy efficiency.

Disclosed herein is a light emitting device and method of manufacturing such a device comprised of a series of photopolymerizable, chiral liquid crystalline layers that can be solvent cast on a substrate. The mixture of chiral materials in each successive layer may be blended in such a way that each layer has the same chiral pitch. Further the chiral materials in each layer may also be blended so that the ordinary and extraordinary refractive indices in each layer match the other layers such that the complete assembly of layers will optically function as a single relatively thick layer of chiral liquid crystal. The chiral nematic material in each layer can spontaneously adopt a helical structure with a helical pitch. The light emitting layers of the light emitting device can further comprise electroluminescent material that emits light into the band edge light propagation modes of the photonic crystal.

Provided is a photoelectric conversion element including a photoelectric conversion material layer that is constituted by an organic material having more excellent sensitivity and responsiveness than those of conventional ones. The photoelectric conversion element of the present invention includes: (a-1) a first electrode and a second electrode which are disposed apart from each other; and (a-2) a photoelectric conversion area which is disposed between the first electrode and the second electrode, wherein the photoelectric conversion area includes multiple layers and at least one of the multiple layers is formed of a dioxaanthanthrene-based compound represented by the structural formula (1).

The disclosure is related to a method for preparing an OLED display panel, comprising: providing a substrate; disposing a spray device above the substrate, and applying a forward voltage to the spray device; applying a reverse voltage to a section of the substrate on which organic material being going to be deposited, and applying a forward voltage outside the section; the spray device spraying organic material in fog form, such that the organic material in fog form depositing on the section. The disclosure further provides an OLED display panel prepared by the method. In the disclosure, sub pixels can be prepared without masks, the spray device sprays out the organic material in fog form by electro spraying, and a higher accuracy is not necessary for the spray device, which sprays by electro spraying, such that the cost is significantly decreased.

Various embodiments may relate to an optoelectronic component and a method for producing an optoelectronic component. In various embodiments, an optoelectronic component is provided, the optoelectronic component, including an optically active structure, which is designed for receiving and/or providing electromagnetic radiation, and at least one scattering structure, which is formed in the beam path of the electromagnetic radiation on or above the optically active structure. The scattering structure is designed such that the directional characteristic of the electromagnetic radiation can be electrically modified.

An object of the present invention is to provide an organic field-effect transistor from which a liquid crystal compound used for aligning an organic semiconductor does not need to be removed and which has excellent mobility, an organic semiconductor element, and a method for manufacturing an organic semiconductor crystal used in the organic field-effect transistor and the organic semiconductor element. An organic field-effect transistor of the present invention includes a first layer which consists of an organic semiconductor compound and a second layer which is adjacent to the first layer and consists of a liquid crystal compound, in which an organic semiconductor crystal in the first layer has a size of equal to or greater than 100 m100 m.

The present invention relates generally to the field of organic chemistry and particularly to the organic compound for organic photovoltaic devices. More specifically, the present invention is related to the organic compounds and the organic photovoltaic devices based on these compounds. In one preferred embodiment, this organic compound has the general structural formula

##STR00001##

where Het.sub.1 is a predominantly planar polycyclic molecular system of first type; Het.sub.2 is a predominantly planar polycyclic molecular system of second type; A is a bridging group providing a lateral bond of the molecular system Het.sub.1 with the molecular system Het.sub.2 via strong chemical bonds; n is 1, 2, 3, 4, 5, 6, 7 or 8; B1 and B2 are binding groups; i is 0, 1, 2, 3, 4, 5, 6, 7 or 8; j is 0, 1, 2, 3, 4, 5, 6, 7 or 8; S1 and S2 are groups providing solubility of the organic compound; k is 0, 1, 2, 3, 4, 5, 6, 7 or 8; m is 0, 1, 2, 3, 4, 5, 6, 7 or 8; D1 and D2 are substituents independently selected from a list comprising CH.sub.3, C.sub.2H.sub.5, NO.sub.2, Cl, Br, F, CF.sub.3, CN, OH, OCH.sub.3, OC.sub.2H.sub.5, OCOCH.sub.3, OCN, SCNNH.sub.2, NHCOCH.sub.3, C.sub.2Si(CH.sub.3).sub.3, and CONH.sub.2; y is 0, 1, 2, 3, 4, 5, 6, 7 or 8; and z is 0, 1, 2, 3, 4, 5, 6, 7 or 8. Said organic compound absorbs electromagnetic radiation in at least one predetermined spectral subrange within a wavelength range from 400 to 3000 nm and is capable to form supramolecules. The molecular system Het.sub.1, the bridging group A, and the molecular system Het.sub.2 are capable to form a donor-bridge-acceptor system providing dissociation of excited electron-hole pairs. A solution of the organic compound or its salt is capable of forming a solid photovoltaic layer on a substrate.

A liquid crystal composition is provided containing a first liquid crystal compound represented by formula (1):

##STR00001##

and a second liquid crystal compound represented by formula (2):

##STR00002##

Also provided is a method for producing the liquid crystal composition having a desired wavelength dispersion characteristic.