Provided are organic compounds comprising a central eight-membered ring which is formed by connecting four 6-membered aromatic rings. The compound further comprises a first and a second chemical structure which are selected from Formulas II-VI. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these compounds.

Provided are compounds comprising a first moiety and a second moiety, wherein the first moiety comprises an azabenzene joined to a trivalent nitrogen atom that is part of an at least three-cyclic heteroaromatic ring system. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these compounds.

The present invention relates to an organic mixture and an application thereof in organic electronic devices. The organic mixture comprises a spirofluorene organic compound containing a fused heterocyclic ring and an aromatic fused heterocyclic organic compound containing an electron-donating group. A combination of the two materials may be used as a host material of a phosphorescent organic light-emitting diode (OLED), which may use the energy of excitons and balance the charge transport to the greatest extent and which may effectively reduce the concentration of excitons and the operating voltage of a corresponding device, thereby effectively improving the efficiency and service life of the related electronic device in order to provide an effective solution for improving the overall performance of an organic electronic device.

Measurements on organic single crystals reveal remarkable optical and electrical characteristics compared to disordered films but practical device applications require uniform, pinhole-free films. Disclosed herein is a process to reliably convert as-deposited amorphous thin films to ones that are highly crystalline, with grains on the order of hundreds of microns. The disclosed method results in films that are pinhole-free and that possess grains that individually are single crystal domains.

An object of the present invention is to provide a composition for forming an organic semiconductor film that is excellent in printing properties and makes is possible to prepare an organic thin film transistor excellent in mobility and insulation reliability. Another object of the present invention is to provide an organic thin film transistor, electronic paper, and a display device. The composition for forming an organic semiconductor film of the present invention contains an organic semiconductor material, a phenolic reductant, a polymer compound having a weight-average molecular weight of equal to or greater than 500,000, a surfactant, and an organic solvent having a standard boiling point of equal to or higher than 150° C., in which a ratio of a content of the organic semiconductor material to a content of the polymer compound is 0.02 to 10 based on mass, and a ratio of a content of the phenolic reductant to the content of the polymer compound is 0.1 to 5 based on mass.

The present invention includes novel compounds containing deuterated or partially deuterated xanthene and thioxanthene structures. These compounds may be useful as host materials with high triplet energies for phosphorescent electroluminescent devices

The present invention provides a high-performance, highly homogeneous, highly stable electronic device by forming an extremely uniform interface between an insulator and an organic semiconductor, as well as an electronic apparatus using the same. The present invention relates to an electronic device which contains, as a component, an organic thin film in which a geometric two-dimensional arrangement is formed regularly by interdigitating skeletal structures of a positive three-pronged shape of triptycene and by adding a first molecule extending out of one plane of a two-dimensional molecular structure of the triptycene skeletal structure. The invention also relates to an electronic apparatus and the like which contains the electronic device in the interior of the electronic apparatus.

An organic light emitting device and a display device, the organic light emitting device including an anode; an emission layer on the anode, the emission layer including a first compound represented by the following Formula 1; an electron transport layer on the emission layer, the electron transport layer including a second compound and the second compound being an indenofluorene derivative; and a cathode on the electron transport layer, ##STR00001##

An organic light-emitting device comprising: a first electrode; a second electrode facing the first electrode; a first emission unit, a second emission unit and a third emission unit between the first electrode and the second electrode; a first charge generation layer between the first emission unit and the second emission unit; and a second charge generation layer between the second emission unit and the third emission unit, wherein the first emission unit comprises a first emission layer, the second emission unit comprises a second emission layer, the third emission unit comprises a third emission layer, and at least one of the first emission unit, the second emission unit and the third emission unit comprises an inorganic buffer layer.

The present invention discloses an indenotriphenylene-based amine derivative represented by the following formula (A): ##STR00001##
wherein R.sub.1 to R.sub.5, m, n, p, L and Ar are the same definition as described in the present invention. The present invention also discloses an organic EL device employing the indenotriphenylene-based amine derivative as a hole transport material or an electron blocking material, which can lower driving voltage and power consumption and increase efficiency and half-life time.