Abstract: The organic light-emitting device capable of emitting light with remarkably high efficiency and luminance by using a fluorene compound having substituents is provided, and at least one layer among the organic compound layers in the device contains a first compound and a second compound, and the first compound is a fluorene compound represented by the following general formula (III) and the second compound is a compound represented by the following general formula (IV).

Abstract: There is provided a light-emitting element array having a plurality of light-emitting elements of different emission colors each comprising a light extraction electrode, a reflecting electrode, and an organic layer disposed between the electrodes, said organic layer comprising a light-emitting layer and a carrier-transporting layer disposed between the light-emitting layer and the reflecting electrode, wherein the geometrical distances between the reflecting electrode and light-emitting layer are the same irrespective of the emission color, and the specific relational equations (1), (2), and (3) are satisfied.

Abstract: An anthryl derivative group substituted compound having a specific chemical structure is provided. This compound is used for producing an organic luminescent device which can emit luminescent hues with a very high purity and effect light emission with a high luminescence efficiency and a long lifetime.

Abstract: An anthryl derivative group substituted compound having a specific chemical structure is provided. This compound is used for producing an organic luminescent device which can emit luminescent hues with a very high purity and effect light emission with a high luminescence efficiency and a long lifetime.

Abstract: There is disclosed a substituted anthryl derivative is represented by the following general formula (1). The use of the substituted anthryl derivative allows the production of an organic electroluminescence device showing an extremely pure luminescence hue, and an optical output with high luminous efficiency, high luminance, and long life.

Abstract: There is disclosed a substituted anthryl derivative is represented by the following general formula (1).

Abstract: There is provided an aminoanthryl derivative substitution compound represented by the following general formula (1). The compound according to the present invention can provide an organic electroluminescence device showing an extremely pure luminescence hue, and an optical output with high efficiency, high luminance, and long life.

Abstract: The present invention provides a fluorene compound having a novel substituent, and the fluorene compound is represented by the following formula [1]:

Abstract: There is provided an aminoanthryl derivative-substituted pyrene compound represented by the following general formula (1). The compound is useful as a compound for an organic light-emitting device exhibiting highly pure luminescent color, and an optical output with high efficiency, high luminance, and long life.

Abstract: An organic light-emitting device is provided which has an optical output with a high efficiency, a high luminance and a long life and which includes a pair of electrodes including an anode and a cathode, and at least one layer comprising an organic compound provided between the pair of electrodes, wherein at least one layer having a light-emitting region of the at least one layer comprising the organic compound comprises a first compound represented by the general formula (1): and a second compound having a bandgap larger than a bandgap of the first compound.

Abstract: A novel phenanthroline compound is provided which is represented by the general formula [I]: (wherein R1, R2, R3, R4, R5 and R6 are the same or different and each is selected from a hydrogen atom, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aralkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted heterocyclic group, and a halogen atom; and Ar1 and Ar2 are the same or different and each is selected from an unsubstituted or substituted fluorenyl group, an unsubstituted or substituted fluoranthenyl group, an unsubstituted or substituted perylenyl group, and an unsubstituted or substituted carbazolyl group). An organic light emitting device using the phenanthroline compound is also provided that has a light output with a high efficiency and a high luminance and has a high long-term durability.

Abstract: There is provided an organic light emitting device to break through the limit of 25% of internal quantum efficiency and 5% of external quantum efficiency while using singlet luminescence.

Abstract: It is an object of the present invention to provide an organic light emitting device having a long-life optical output. The organic light emitting device according to the present invention is provided with an emission layer including at least a host material, a light emitting material, and another material, wherein the another material has a smaller ionization potential than and almost the same hole mobility as or a greater hole mobility than an ionization potential and a hole mobility of a compound which forms an emission layer-side-interface.

Abstract: When one-to-one correspondence is made between each pixel of an original image and each element of a threshold matrix, a density of each pixel in an output image is represented by binary or multivalue, and a dot pattern of which the size corresponds to the threshold matrix is divided into small blocks, the threshold matrix is created such that the number of dots in each of all the blocks is made equal in all gray levels, the dot patterns in the plural blocks are made mutually the same in all the gray levels, and at a boundary of the blocks where the dot patterns are made mutually the same, the dots are increased while taking conformity of the dot patterns, or the threshold matrix is created such that order of dot increase is controlled between the blocks where the dot patterns are made mutually the same and the other blocks.

Abstract: A novel substituted fluorene compound is provided which is represented by the general formula [I]:

Abstract: There is disclosed a substituted anthryl derivative is represented by the following general formula (1). The use of the substituted anthryl derivative allows the production of an organic electroluminescence device showing an extremely pure luminescence hue, and an optical output with high luminous efficiency, high luminance, and long life.

Abstract: An anthryl derivative group substituted compound having a specific chemical structure is provided. This compound is used for producing an organic luminescent device which can emit luminescent hues with a very high purity and effect light emission with a high luminescence efficiency and a long lifetime.

Abstract: Provided is an organic electroluminescent device having a high-efficiency optical output with high luminance and long life, which includes at least: a pair of electrodes comprising an anode and a cathode; and one or more organic-compound-containing layers sandwiched between the pair of electrodes, and in which among the organic-compound-containing layers, at least one layer having a light-emitting region contains a first compound represented by the following general formula [1] and a second compound having a band gap larger than a band gap of the first compound.

Abstract: There is provided an organic light emitting device to break through the limit of 25% of internal quantum efficiency and 5% of external quantum efficiency while using singlet luminescence.

Abstract: An organic electroluminescent display includes an organic electroluminescent device, having a microcavity structure, for emitting light resonating in the microcavity structure; a light-shielding layer having an opening through which a portion of the light emitted from the organic electroluminescent device passes; and a light-gathering structure, disposed between the organic electroluminescent device and the light-shielding layer, for gathering the light emitted from the organic electroluminescent device.