Abstract: The present disclosure provides an organic light-emitting element including: a first electrode; a light-emitting layer; and a second electrode, wherein the light-emitting layer contains at least a first compound in which a naphthalene ring and a tricyclic or higher cyclic fused ring are bonded together by a single bond and a second compound in which the naphthalene ring and the fused polycyclic ring of the first compound are further cyclized.

Abstract: An organic compound represented by the following formula [1]: Ar is selected from the group consisting of a substituted or unsubstituted aryl group and a substituted or unsubstituted heteroaryl group. R1 and R2 are independently selected from the group consisting of a hydrogen atom and a substituent. m and n are selected from integers of 1 or more and 3 or less.

Abstract: This disclosure relates to a reproduction system, a display apparatus, and a reproduction apparatus for providing higher acoustic performance. There is provided a reproduction system including a display apparatus including a display section configured to display an image of content, and a first sound output section configured to output a sound of the content in a manner localizing a sound image on a screen of the display section, and a reproduction apparatus including a processing section configured to process an audio signal of the content, and a second sound output section configured to output the sound of the content, in which the first sound output section and the second sound output section output the sound simultaneously on the basis of an audio signal of a center channel of the content. This disclosure may be applied to an AV system formed by a television receiver and audio equipment, for example.

Abstract: An organic compound represented by formula [1]: R1 to R10 are each independently selected from the group consisting of a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group. However, at least one of R2, R3, R8, and R9 is selected from the group consisting of a deuterium atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.

Abstract: An organic light emitting element which realizes a high efficiency and long-life light emission is provided. An organic compound represented by the general formula [1] described in Claim 1 is provided. In the general formula [1], R1 to R3 are each independently selected from a hydrogen atom, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group. However, at least one of R1 to R3 represents the aryl group or the heterocyclic group. The aryl group represents a phenyl group, a naphthyl group, a phenanthrenyl group, a fluorenyl group, a triphenylenyl group, or a chrysenyl group. The heterocyclic group represents a dibenzofuranyl group or a dibenzothienyl group.

Abstract: The present invention provides an aqueous ink of active energy ray curable type for ink jet. The aqueous ink contains resin particles and a photo acid generator. The resin particles include a reactive group-containing resin having at least one reactive group selected from the group consisting of an epoxy group, an oxetanyl group and a vinyl ether group. Further provided are an ink cartridge and an ink jet recording method in which the aqueous ink is used.

Abstract: A liquid composition that is an aqueous liquid composition that emits light when irradiated with ultraviolet light contains a resin particle, the resin particle containing a unit that has a polar group and containing a complex composed of a sulfur-bridged calixarene and a lanthanoid ion, the polar group being at least one selected from the group consisting of an ester group, a carboxy group, a hydroxy group, an ether group, an amino group, an amide group and a cyano group.

Abstract: The present invention provides a novel iridium complex and an organic light-emitting device including the novel iridium complex. The novel iridium complex includes three ligands, and two of them have a phenyl-naphtho[2,1-f]isoquinoline skeleton. The present invention also provides a display apparatus including the organic light-emitting device and an electrophotographic image-forming apparatus including a light source including the organic light-emitting device and including a photosensitive member.

Abstract: Provided is an organic light-emitting element having high luminous efficiency and a long lifetime. The organic light-emitting element includes a pair of electrodes and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a benzo[f]isoquinoline of a specific structure as a ligand and a metal complex compound of a specific structure.

Abstract: The present invention provides an aqueous ink of active energy ray curable type for ink jet. The aqueous ink contains resin particles and a photo acid generator. The resin particles include a reactive group-containing resin having at least one reactive group selected from the group consisting of an epoxy group, an oxetanyl group and a vinyl ether group. Further provided are an ink cartridge and an ink jet recording method in which the aqueous ink is used.

Abstract: Provided is an organic light-emitting element having high luminous efficiency and a long lifetime. The organic light-emitting element includes a pair of electrodes and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a benzo[f]isoquinoline of a specific structure as a ligand and a metal complex compound of a specific structure.

Abstract: An aqueous ink for ink jet, the aqueous ink containing a pigment and a resin. The pigment is impregnated with a compound having a structure in which at least two structures each represented by General Formula (1) are bonded by a glycoside bond.

Abstract: Provided is an organic light-emitting element having high luminous efficiency and a long lifetime. The organic light-emitting element includes a pair of electrodes and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a benzo[f]isoquinoline of a specific structure as a ligand and a metal complex compound of a specific structure.

Abstract: Provided is an organic light-emitting element improved in luminous efficiency and lifetime. The organic light-emitting element includes a pair of electrodes and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a benzo[f]isoquinoline of a specific structure as a ligand and a heterocycle-containing compound of a specific structure.

Abstract: An aqueous ink for ink jet including a resin particle. The resin particle has a first layer and a second layer in this order from the inside toward the outside of the resin particle. The first layer is formed of a first resin in which the proportion of a unit derived from a cycloaliphatic-group-containing ethylenically unsaturated monomer is 10% by mass or less. The tetrahydrofuran-insoluble fraction of the second layer is 15% by mass or more. The second layer is formed of a second resin having the unit derived from the cycloaliphatic-group-containing ethylenically unsaturated monomer and a unit derived from an ionic-group-containing ethylenically unsaturated monomer. The proportion of the unit derived from the ionic-group-containing ethylenically unsaturated monomer in the second resin is 3% by mass or more to 70% by mass or less.

Abstract: Provided is an organic light-emitting device improved in emission efficiency and lifetime. The organic light-emitting device includes a pair of electrodes and an organic compound layer disposed between the pair of electrodes, in which: the organic compound layer includes a benzo[f]isoquinoline iridium complex of a specific structure and a hydrocarbon compound of a specific structure; and the hydrocarbon compound is a compound formed only of an SP2 carbon atom and a hydrogen atom.

Abstract: Provided is an organic light-emitting element having high light-emitting efficiency and a long element lifetime, the organic light-emitting element including an anode, a cathode, and an organic compound layer placed between the anode and the cathode, in which: the organic compound layer includes an emission layer; the emission layer includes a host and a guest; the host is an aromatic hydrocarbon compound; the guest is an iridium complex of a specific structure; and a content of the host is 50 wt % or more with reference to the total amount of the constituent materials for the emission layer.

Abstract: Provided is an organic light-emitting element having high light-emitting efficiency and a long element lifetime. Specifically, provided is an organic light-emitting element, including: an anode; a cathode; and an organic compound layer placed between the anode and the cathode, in which: the organic compound layer includes an emission layer; the emission layer includes at least a host and a guest; the guest is an iridium complex of a specific structure; the host is a heterocycle-containing compound; and a content of the host is 50 wt % or more with reference to a total amount of constituent materials for the emission layer.

Abstract: An aqueous ink for ink jet, the aqueous ink containing a pigment and a resin. The pigment is impregnated with a compound having a structure in which at least two structures each represented by General Formula (1) are bonded by a glycoside bond.

Abstract: An aqueous ink for ink jet including a resin particle. The resin particle has a first layer and a second layer in this order from the inside toward the outside of the resin particle. The first layer is formed of a first resin in which the proportion of a unit derived from a cycloaliphatic-group-containing ethylenically unsaturated monomer is 10% by mass or less. The tetrahydrofuran-insoluble fraction of the second layer is 15% by mass or more. The second layer is formed of a second resin having the unit derived from the cycloaliphatic-group-containing ethylenically unsaturated monomer and a unit derived from an ionic-group-containing ethylenically unsaturated monomer. The proportion of the unit derived from the ionic-group-containing ethylenically unsaturated monomer in the second resin is 3% by mass or more to 70% by mass or less.