Abstract: An organic EL element which has no layer that prevents penetration of holes and electrons to the counter electrode. The organic EL element includes: an anode, a hole injecting and transporting layer formed on the anode, a light emitting layer formed on the hole injecting and transporting layer, an electron injecting and transporting layer formed on the light emitting layer, and a cathode formed on the electron injecting and transporting layer. Ip2?Ip3 is established when an ionization potential of a constituent material for the light emitting layer is Ip2 and an ionization potential of a constituent material for the electron injecting and transporting layer is Ip3. Ea1?Ea2 is established when an electron affinity of a constituent material for the hole injecting and transporting layer is Ea1 and an electron affinity of the constituent material for the light emitting layer is Ea2.

Abstract: This invention provides an organic EL light-emitting device, which can prevent the occurrence of brightness unevenness due to resistance of a transparent electrode, in a large surface light-emitting panel of an organic EL element. The organic EL light-emitting device includes an element formation substrate 1, on which an organic EL element 2 including an organic light-emitting layer is stacked, and a sealing substrate 3 for sealing the organic EL element so as to accommodate the organic EL element between the element formation substrate and the sealing substrate. A sealing portion 4 formed of an adhesive is formed in the peripheral edge portion between the element formation substrate 1 and the sealing substrate 3, and a grease layer 5 or a gel layer 5 is accommodated in between the element formation substrate, on which the organic EL element surrounded by the sealing portion is formed, and the plate-shaped sealing substrate so as to adhere to the element formation substrate and the sealing substrate.

Abstract: To provide a lighting apparatus in which a high-class feeling and a cubic effect are obtained or an interior design is allowed to have an appearance like a chandelier. Plane light emitters constituted by organic EL elements are mounted at planar frames in the shape of a frame, and the above-mentioned frames are connected mutually and annularly so that light emitting units of a first-third rings are arranged. Each of the above-mentioned frames which constitute the light emitting units of each ring is formed to be square, and opposed corner portions of the respective frames are connected together. The numbers of frames which constitute the light emitting units of the above-mentioned first-third rings are each set as the same number, and a plane light emitter side in each frame is arranged so as to form a dome shape.

Abstract: An organic EL (electroluminescence) element capable of efficiently recombining holes and electrons in a light emitting layer and also improving efficiency and lifetime of the element. The element comprises electrodes 1 and 2, the light emitting layer 4, and transport layers 3 and 5 that transport holes and electrons to the layer 4. The layer 4 contains compound functioning as electron accepting dopant and/or substance functioning as electron donating dopant. Accordingly, it is possible to optimize the injection valance of holes or electrons into the layer 4.

Abstract: The present invention provides a patterning method of an organic EL device that can easily and efficiently be performed with high definition, and that can control a contrast by a luminous brightness. In an organic EL device having an organic layer, including an organic luminescent material, formed between a pair of counter electrodes, ultraviolet ray is irradiated to the organic layer, and the amount of irradiation is changed to form an emission pattern having a contrast caused by a luminous brightness corresponding to the amount of the irradiation of the ultraviolet ray.

Abstract: Provided are a hole-injecting material for an organic electroluminescent device (organic EL device) exhibiting high luminous efficiency at a low voltage and having greatly improved driving stability, and an organic EL device using the material. The hole-injecting material for an organic EL device is selected from benzenehexacarboxylic acid anhydrides, benzenehexacarboxylic acid imides, or N-substituted benzenehexacarboxylic acid imides. Further, the organic EL device has at least one light-emitting layer and at least one hole-injecting layer between an anode and a cathode arranged opposite to each other, and includes the above-mentioned hole-injecting material for an organic EL device in the hole-injecting layer. The organic EL device may contain a hole-transporting material having an ionization potential (IP) of 6.0 eV or less in the hole-injecting layer or a layer adjacent to the hole-injecting layer.

Abstract: There are executed a coating or attaching process for coating or attaching a grease-like or gel-like material onto a surface of a sealing substrate on a sealed space side and a drying process for drying the grease-like or gel-like material coated or attached onto the sealing substrate. Then, there is executed a laminating process of sealing the peripheral edge portion between the sealing substrate and the element formation substrate by a sealing agent such as an adhesive in such a state that the surface of the sealing substrate onto which the grease-like or gel-like material is coated or attached and the surface of the element formation substrate on which an organic EL element is formed are opposed to each other.

Abstract: The present invention provides an organic EL element having a multi-photon structure, in which optical absorption in the visible region caused by a charge-transfer complex in a conventional intermediate layer structure is inhibited, and the resistance of this intermediate layer to a counter career is improved, thus allowing high efficiency and a long operation life of the element. The element is arranged to be formed on a substrate 1 and have a multi-photon structure in which a plurality of light emitting units 4 including at least one light emitting layer are stacked via an intermediate layer 5 between an anode layer 2 and a cathode layer 3 which is a counter electrode, the above-mentioned intermediate layer 5 is formed by mixing or stacking an electron accepting material or an electron donating material and an organic compound, so as to avoid formation of a charge-transfer complex.

Abstract: The present invention provides a new bipyridine derivative which is suitable for an electron transport material of an organic electronics element and which has bipyridyl central rings as a core, and further provides an organic electroluminescence element containing the derivative. The bipyridine derivative is expressed by the following general formula. (where A1, A2: represent an aromatic heterocyclic group (except for a carbazolyl group) and an aromatic hydrocarbon group and the aromatic heterocyclic group may be combined; a, b=1 or 2; Ar1, Ar2: represent a divalent or trivalent aromatic hydrocarbon group which may be substituted by hydrogen atom, an alkyl group, a cycloalkyl group, or an alkoxy group; B1, B2: represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; and ring E1, ring E2: represent a pyridine ring, and may have hydrogen atom, an alkyl group, a cycloalkyl group, or an alkoxy group.

Abstract: An illumination device is provided that has a superior decorative effect achieving a favorable dramatic effect and atmosphere. Sub-panels (2, 3, 4, 5) having the same shape as a main panel (1) are mounted pivotally to each side of the rectangular main panel (1) via hinges (6). Surface-emitting parts (1a, 2a, 3a, 4a, 5a) formed of organic EL elements are mounted on the main panel (1) and each of the sub-panels (2, 3, 4, 5). By changing a set angle between the main panel (1) and each of the sub-panels (2, 3, 4, 5) and by independently controlling the lighting of each surface-emitting part (1a to 5a), a favorable dramatic effect and atmosphere can be created.

Abstract: An illuminating device is provided which is capable of being used for a variety of illuminating applications by combining panel cases housing surface light emitting bodies and of realizing light modulation control in a state in which each panel case is being combined. To one end of a long panel case 1 housing the surface light emitting body is connected a hub case 2 housing a power module and to the other end of the panel case 1 are sequentially connected panel case each having same configuration as the panel case 1, in series, via a connector. Driving power is supplied to a power module housed in the panel case of each of sets made up of the serially connected body and light modulation for the surface light emitting bodies housed in the panel cases of each set is exerted independently by the power module housed in the each hub case of each set.

Abstract: The present invention provides an organic electroluminescence element in which an anode layer 2, a light emitting unit 3, and a cathode layer 4 which each have optical permeability are stacked on a transparent substrate 1, the cathode layer 4 including a first charge generation layer 4a and a cathode 4c. The cathode 4c is formed by way of a facing target sputtering method. Even in the case where a cathode material which has optical permeability is used, the organic electroluminescence element is driven at a low applied voltage, has no angle dependability of an emission spectrum, and has high luminous efficiency.

Abstract: It is provided with a light emitting panel 2 in which a light emitting part 5 formed of an organic EL element (for example) is mounted at one surface, a panel support member 3 for swivelingly supporting the above-mentioned light emitting panel through a first connection part (hinge member) 6 at a lower end of the above-mentioned light emitting panel, and a seat 4 for swivelingly supporting the above-mentioned panel support member through a second connection part (pivot mechanism) 7 at a lower end of the above-mentioned panel support member. The light emitting part 5 in the above-mentioned light emitting panel is arranged such that a depression angle and an elevation angle can be adjusted by the above-mentioned first connection part 6 and a horizontal orientation can be adjusted by the above-mentioned second connection part 7.

Abstract: A lighting apparatus includes a plane light-emitter 1 and a lighting device body 5 for distributing and guiding light. The above-mentioned lighting device body 5 is provided with a lighting device attachment member 6 mounted to the plane light-emitter so as to surround a luminescence side of the plane light-emitter 1, a first light guidance member 7 which is constituted by a window hole adjoining the above-mentioned lighting device attachment member and passes the above-mentioned emitted light in a direction which does not intersect perpendicularly with the luminescence side of the above-mentioned plane light-emitter, and a second light guidance member 8 which is formed in the shape of a cylinder adjoining the above-mentioned first light guidance member and passes the above-mentioned emitted light directed toward the inside of a cylinder in a direction which intersects perpendicularly with the luminescence side of the above-mentioned plane light-emitter.

Abstract: The apparatus is provided with a plurality of lighting devices whose light sources are one or more solid light emitting elements which are supplied with current from a single direct-current power source, lit, and driven respectively, a single main controller 2 which generates a control signal for controlling dimming with regard to the above-mentioned plurality of lighting devices 8, and a sub-controller 7, assuming the above-mentioned lighting devices 8 to be a unit, being provided corresponding to a lighting device for each unit as mentioned above, and controlling dimming of the lighting device for each unit as mentioned above based on the control signal sent from the above-mentioned main controller 2, respectively.

Abstract: To provide a lighting apparatus in which a high-class feeling and a cubic effect are obtained or an interior design is allowed to have an appearance like a chandelier. Plane light emitters 5, 6, and 7 constituted by organic EL elements are mounted at planar frames 2, 3, and 4 in the shape of a frame, and the above-mentioned frames 2, 3, and 4 are connected mutually and annularly so that light emitting units of a first-third rings are arranged. Each of the above-mentioned frames which constitute the light emitting units of each ring is formed to be square, and opposed corner portions of the respective frames are connected together. The numbers of frames which constitute the light emitting units of the above-mentioned first-third rings are each set as the same number, and a plane light emitter side in each frame is arranged so as to form a dome shape.

Abstract: To find a triphenylbenzene derivative suitable for a wide-gap material which allows blue luminescence excellent in color purity, and provide an organic EL element using the same. The organic EL element having one or a plurality of organic layers including a light emitting layer between a pair of electrodes is arranged such that at least one layer of the above-mentioned organic layers contains a compound as expressed by the following general formula (1) independently or as a mixture, where R1-R21 are each independently selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryloxy group, and an alkylsilyl group. Each of Ar1-Ar3 is A or B independently, and at least one of them is A. X indicates a bond part with respect to a central benzene ring and is bonded in a meta position with respect to the central benzene ring.

Abstract: An organic EL element having one or a plurality of organic layers including a light emitting layer between a pair of electrodes is arranged such that at least one layer of the above-mentioned organic layers contains a compound as expressed by the following general formula (1) independently or as a mixture. (where R1-R4 are selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, and an aryloxy group, and they may be the same groups or the groups different from one another, and A1-A4 are selected from the group consisting of a phenyl group which is either substituted or unsubstituted and a 5 or 6 member heterocyclic ring group which is either substituted or unsubstituted, and they may be the same groups or the groups different from one another.