Abstract: A material for the luminescent layer of an organic EL device includes a bis-2,5-(2-benzazolyl) hydroquinone compound represented by a general formula: where each of R1-R8 independently represents hydrogen atom, halogen atom, hydroxy group, substituted or unsubstituted amino group, nitro group, cyano group, substituted or unsubstituted alkyl group, substituted or unsubstituted alkenyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted alkoxy group, substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic complex ring group, substituted or unsubstituted aralkyl group, substituted or unsubstituted aryloxy group, substituted or unsubstituted alkoxy carbonyl group, or carboxyl group, and any two of R1-R8 may form a ring and “X” represents “NH”, “O” or “S”.

Abstract: An organic EL device which comprises an anode, a cathode and one or more than one organic thin-film layer including a light-emitting layer contains a particular perylene derivative represented by following formula (1): 1

Abstract: An organic electroluminescence device having one or more organic thin layers including a luminescent layer between an anode and a cathode, wherein at least one of the organic thin layers contains a compound or compounds selected from the group consisting of particular bianthryl, binaphthyl, trianthrylene and naphthylanthracene compounds, alone or in combination, the general formula of bianthryl compound being shown as follows:

Abstract: An organic TFT including an organic film, first and second electrodes each disposed in contact with opposite surfaces of the organic film each other; and a third electrode disposed at a specified distance from each of the first and second electrodes, the third electrode being applied with a voltage to control current flowing from one of the first and the second electrodes to the other through the organic film; and the organic film including a compound represented by general formula [1]. In this TFT, the carrier moves from one of the first and the second electrodes to the other in the direction of the film thickness of the organic film. The device structure realizes the enough short channel length. The organic film provides the higher mobility, thereby the organic TFT with the sufficiently higher speed response is realized.

Abstract: The present invention provides an organic EL device that allows the obtaining of favorable color emission with high efficiency. The organic EL device of the present invention has at least an emission layer 4 and an electron transporting layer 5 between an anode 2 and cathode 6, and an intermediate layer 7 is provided between the emission layer 4 and electron transporting layer 5 that has a film thickness of 1 to 20 nm and is comprised of a material having an ionization potential larger than that of the material used for the emission layer 4.

Abstract: A communication system includes: at least one light-emitting device for emitting a light; and at least one light-receiving device for receiving the light emitted from the at least one light-emitting device. The light-emitting device further includes: at least one driver unit for generating a modified current based on an externally entered information signal; and at least one light-emitting unit operatively and functionally coupled to the at least one driver unit for receiving the modified current and emitting a modified signal light including any information based on the modified current. The at least one light-emitting unit includes at least one electroluminescence element.

Abstract: A light emitting device and a manufacturing method thereof and a display used the light emitting device, in which fine patterning for the light emitting device is realized by a simple process and the light leakage is prevented and the efficiency at extracting light is increased, are provided. The light emitting device provides an organic electroluminescent (EL) device in which electrodes and a luminescent layer are formed, a diffraction grating or a zone plate, and a filter. Light emitted from the luminescent layer transmits through the diffraction grating or the zone plate, which is formed with a designated grating pitch, or is reflected at the diffraction grating or the zone plate. With this, the transmitting or reflecting light is controlled to be in a designated angle region. And when the light is transmitted through the filter, light having different color tone and chromaticity from those of the light emitted from the luminescent layer is extracted.

Abstract: In a light-emitting device comprising an organic electroluminescent device including one or more organic thin layers (at least including a light-emitting layer) which are sandwiched between a transparent first electrode formed on a light-transmitting substrate and a second electrode, the light-transmitting substrate is formed so as to include parts for reflecting light emitted by the organic electroluminescent device (corresponding to a pixel) and thereby preventing the light from entering adjacent pixel areas. The light-transmitting substrate is formed of material having a refractive index of 1.65 or more or a refractive index higher than that of the light-emitting layer. A surface of the light-transmitting substrate opposite to the first electrode is provided with a light-diffusing function for avoiding total reflection.

Abstract: An organic EL device includes in a luminescent layer, hole transport layer or an electron transport layer, a triphenylene compound defied by the following formula: Wherein each of R1 to R12 represents hydrogen, halogen, hydroxyl group, amino group, nitro group, alkyl group etc.

Abstract: This invention provides organic electroluminescent devices in which a diffraction grating is formed as a constituent element thereof on the reflecting surface of the cathode or on the light output side, resulting in an improvement in light output efficiency.

Abstract: An object of the present invention is to provide a blue-light emitting organic EL device having excellent color purity and high brightness.

Abstract: This invention provides organic electroluminescent devices in which a diffraction grating is formed as a constituent element thereof on the reflecting surface of the cathode or on the light output side, resulting in an improvement in light output efficiency.

Abstract: An organic EL device with high brightness and long lifetime, which is capable of driving at low voltage, is provided. As the material for constituting the organic EL device, a specific styryl amino group-containing diphenyl aminoarylene represented by the following general formula [1] (wherein Ar1 is a substituted or unsubstituted arylene group having 5-42 carbons, Ar2 to Ar5 each independently represents substituted or unsubstituted C6 to C20 aryl groups, at least one of which is a styrylphenyl group represented by the following general formula [2]) is used in a light-emitting zone adjacent to an anode.

Abstract: An organic EL device includes a hole transport layer and a luminescent layer both disposed between an anode and a cathode.

Abstract: An organic electroluminescent (EL) device includes one or more organic thin film layers disposed between an anode and a cathode, at least one of said layers containing, in a form of a mixture or a single substance, a pentacene compound expressed in Formula 1, a dibenzoperylene compound expressed in Formula 3 or another dibenzoperylene compound expressed in Formula 4. The organic EL device exhibits higher luminance than that obtained by a conventional organic EL device.

Abstract: A communication system includes a wire network, a first terminal device, and a second terminal device. A first master device connected to the wire network transmits and receives data to and from the first terminal device by wireless at a first data rate. For example, light is used by the wireless data transmission between the first master device and the first terminal device. A second master device connected to the wire network transmits and receives data to and from the second terminal device by wireless at a second data rate lower than the first data rate. For example, radio is used by the wireless data transmission between the second master device and the second terminal device. A server connected to the wire network manages addresses of the first and second master devices.

Abstract: In an organic electroluminescent device, a plurality of striped lower electrodes are formed on an insulating substrate, and a plurality of fillers made of amorphous carbon are filled between the lower electrodes. Organic thin film layers including an emitting layer is formed on the fillers and the lower electrodes. A plurality of striped upper electrodes are formed on the organic thin film layer along a second direction different from the first direction.

Abstract: An organic electroluminescent (EL) device including an anode, a cathode, and an emitting layer and at least one organic thin-film layer which are sandwiched between said anode and said cathode, said organic thin-film layer including compound expressed by the following general formula [I], [II] or [III]. The organic EL device suppresses the light emission from the emitting layer, thereby generating original blue light emission. The above compound exhibits an excellent electron-transporting property, and the emitting layer containing the compound improves the device performance.

Abstract: An organic EL device includes in a luminescent layer, hole transport layer or an electron transport layer triphenylene compound define by the following formula: 1

Abstract: An organic electroluminescent device in which the electrode in the light-emitting side has small protrusions to allow the counter electrode to have a concave shape so as to utilize reflection by the concave and inclined mirror faces of the counter electrode to improve light-collection efficiency.