114results about "Perylene derivatives" patented technology

The invention relates to the compounds of formulae (1) to (6) and to organic electroluminescent devices, especially blue-emitting devices, in which these compounds are used as the host material or doping agent in the emitting layer and / or as the hole transport material and / or as the electron transport material.

Anisotropic films based on sulfoderivatives of perylenetetracarboxylic acid dibenzimidazole (PTCA DBI) which contain oxo groups pendant to a perylene core. The oxo-groups, in combination with portions of the perylene core, form a quinoid system of bonds. The oxo substituted PTCA DBI sulfoderivatives form liquid crystal systems possessing high optical properties. Said liquid crystal systems can be applied onto various substrates to obtain optically isotropic or anisotropic, at least partially crystalline, films applicable in various fields.

A light-emitting material which serves to emit light having a high brightness and is almost free of deterioration in light emission, and an organic EL device for which the light-emitting material is adapted, the material having the formula (1) disclosed in claim 1, 2 or 3.

Disclosed is an organic EL element (1)-which is provided with a counter electrode (6), an organic light-emitting layer (5), and a transparent electrode (4) on a translucent substrate (2)-wherein: a light extraction layer (3), of which a high refractive index layer (31) adjacent to the transparent electrode (4) and a low refractive index layer (32) adjacent to the translucent substrate (2) are stacked, has a plurality of irregular-section units (31A) configured from convex sections (311) and concave sections (312) at the interface of the high refractive index layer (31) and the low refractive index layer (32); in at least one of the plurality of irregular-section units (31A), the distance (d1) from the interface between the high refractive index layer (31) and the low refractive index layer (32) to the interface between the transparent electrode (4) and the high refractive index layer (31) is at least the optical coherence length; and the height (d2) of the convex sections (311), the width (d3) of the convex sections (311), and the spacing (d4) between each convex sections (311) and the adjacent convex sections (311) with concave sections (312) therebetween is at least 1 [mu]m.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, L1, L2, L3, L4, M, m and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.