Abstract: An organic luminescence device is formed by disposing a layer of organic compound between a pair of an anode and a cathode. An organic luminescence device exhibiting orange to red luminescence at a good durability is provided by including an organic compound layer containing a spiro compound selected from a specific class, e.g.

Abstract: An organic boron compound effective for constituting a functional layer in an organic luminescence device is represented by formula (1) below: wherein Ar1 denotes an optionally substituted aryl group or heterocyclic group; R1-R11 independently denote hydrogen, halogen, alkyl, alkenyl, amino, alkoxy, formyl, nitrile, aroyl, alkyloyl, aryl, aralkyl or heterocyclic group, each optionally substituted with the proviso that an adjacent one or more pairs of R1-R11 can form a condensed ring. The organic boron compound can be produced through a process including (A) a step of reacting an aromatic ketone compound X with an aromatic ketone compound or an aromatic aldehyde compound in the presence of ammonium chloride, and (B) a step of reacting a product of the step (A) with an aromatic boric acid compound.

Abstract: An image is printed in an image print area on a recording medium by using a first printing material. Information is printed on an image preservation determination portion in a border portion as an area other than the image print area by using a second printing material which deteriorates faster than the first printing material. This portion is stored as density data, color appearance data, or the like in the apparatus to be used as a criterion for determination of deterioration when the image is to be reused.

Abstract: An organic luminescence device is formed by disposing a layer of organic compound between a pair of an anode and a cathode. An organic luminescence device exhibiting orange to red luminescence at a good durability is provided by including an organic compound layer containing a spiro compound selected from a specific class, e.g.

Abstract: An exposure apparatus performs exposure of a photosensitive body by an array of light emitting devices to form an image as a latent image thereon. The array of light emitting devices incorporate micro-optical cavities. The micro-optical cavities limit wavelengths of light emitted from the array of light emitting devices, so that the wavelength at a peak of emitted light is in a half width region of sensitivity versus wavelength of the photosensitive body.

Abstract: An exposure unit includes a luminescent device array including a pair of electrodes and an organic compound layer disposed between the electrodes, and a microlens array arranged corresponding to the luminescent device array. The exposure unit is used in an image forming apparatus using an electrophotographic system.

Abstract: An organic luminescence is constituted by a pair of electrodes including an anode and a cathode, and an organic compound layer disposed between the pair of electrodes. The organic compound layer comprises a compound represented by the following formula (I): wherein R1 to R6 independently denote a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted heterocyclic group, with the proviso that each pair of R1 and R2, R3 and R4, an R5 and R6 or of R1 and R6, R2 and R3, and R4 and R5 may be connected to each other to form a fused ring structure.

Abstract: An organic electronic device functioning as a flat EL display panel is provided by forming an organic EL element and a nonlinear device as a drive means for controlling a current supplied to the EL device on a common substrate. The nonlinear device has a structure including a first organic layer and a second organic layer each comprising an organic material, and at least one metal layer principally comprising a metal element and sandwiched between the first and second organic layers so as to flow at least a part of current through the metal layer between the first and second organic layers sandwiching the metal layer. The nonlinear device having a function comparable to a conventional organic transistor or diode can be formed by using not a special organic material having a remarkably high mobility but an organic material selected from a broader class of materials.

Abstract: An organic luminescence device is constituted by an organic luminescence lamination structure comprising a pair of an anode and a cathode, and at least one organic compound layer disposed between the anode and the cathode, a hermetic sealing housing enclosing therein the organic luminescence lamination structure and blocking external air, and a drying agent disposed within the hermetic sealing housing.

Abstract: An organic luminescence device is formed by disposing a layer of organic compound between a pair of an anode and a cathode. An organic luminescence device exhibiting orange to red luminescence at a good durability is provided by including an organic compound layer containing a spiro compound selected from a specific class, e.g.

Abstract: Organic semiconductors consisting of conjugated chromophores wherein one or more hydrogen atoms are deuterated are disclosed. Methods of preparing such organic semiconductors are described. The organic semiconducting compounds exhibit remarkably high luminescence and good thermal stability. Applications of these materials for optoelectronic devices, such as light-emitting devices and photodiodes, with enhanced performance and lifetime are disclosed. The disclosed materials can be used as emissive layer, charge-transporting layer, or energy transfer (i.e. phosphorescence dopant) material in organic light-emitting devices.

Abstract: An organic luminescence device is formed by disposing a layer of organic compound between a pair of an anode and a cathode. An organic luminescence device exhibiting orange to red luminescence at a good durability is provided by including an organic compound layer containing a spiro compound selected from a specific class, e.g.

Abstract: An organic luminescence device capable of luminescence at a high efficiency, a high luminance and high durability is formed by a pair of electrodes comprising an anode and a cathode, and at least one organic layer disposed between the electrodes. The at least one organic layer includes at least one layer comprising a polymerized film of organic layer having at least two polymerizable double bonds.

Abstract: An electroluminescence device having a transistor substrate comprising drain electrode pads, each being connected to a drain of a thin film transistor, and capacitors connected to the respective drain electrode pads, and an electroluminescence substrate comprising pairs of electrodes and electroluminescence members each provided between a pair of electrodes, arranged along a plurality of rows and columns, wherein the thin film transistor substrate and the electroluminescence substrate are placed opposite to each other so that the drain electrode pads and the electroluminescence members are opposed to each other, and wherein each drain electrode pad and one electrode of a pair of electrodes are connected through an adhesive electric connection member.

Abstract: A light emitting diode device includes a light emitting diode and a non-linear element which are arranged on a substrate. The non-linear element is composed of an organic compound layer.

Abstract: An organic boron compound effective for constituting a functional layer in an organic luminescence device is represented by formula (1) below: 1

Abstract: An organic luminescence device is formed from a pair of electrodes, and a layer of organic material disposed between the electrodes so as to cause luminescence in response to a voltage applied between the electrodes. The type of organic luminescence device may be provided with improved luminescence performance if it is produced through a process including a wet-patterning step using an ink of the organic material within a hydrophobic organic solvent having a dissolving power of at most 5 wt. % of water at room temperature for producing the organic material layer.

Abstract: In a method for making an organic luminescent device, a first electrode is formed on a substrate by applying a DC voltage to the first electrode without generation of plasma. An organic layer is formed on the first electrode. Furthermore, a second electrode is formed on the organic layer. The resulting organic layer exhibits improved charge injection from the anode and the organic luminescent device exhibits significantly high luminance.

Abstract: An organic luminescent element includes a substrate, an anode, a cathode, at least one organic material layer interposed between the anode and the cathode, and a sealing film containing a ferroelectric material provided on the anode or the cathode on the organic material layer. Preferably, the organic luminescent element further includes a counter electrode provided on the sealing film. Preferably, the substrate is transparent, and the anode is composed of indium tin oxide.

Abstract: An image forming apparatus includes a photosensitive member, an exposure device includes a single-chip light emission element array formed by integrating a plurality of light emitting elements in a single chip which exposure device executes the exposure in the main scanning direction relative to the movement of the photosensitive member, by the light emission from the single-chip light emission element array, and a developing device provided around the photosensitive member.