Abstract: An image capturing and display apparatus comprises a plurality of photoelectric conversion elements for converting incident light from the outside of the image capturing and display apparatus to electrical charge signals, and a plurality of light-emitting elements for emitting light of an intensity corresponding to the electrical charge signals acquired by the plurality of photoelectric conversion elements. A pixel region is defined as a region in which the plurality of photoelectric conversion elements are arranged in an array. Signal paths for transmitting signals from the plurality of photoelectric conversion elements to the plurality of light-emitting elements lie within the pixel region.

Abstract: An organic compound represented by the formula [1]: R1 to R19 are independently selected from the group consisting of a hydrogen atom, a deuterium atom, a halogen atom, and a substituent, and R9 and R19 are optionally bonded together. When R9 and R19 are bonded together, the bonding is selected from the group consisting of direct bonding, bonding via an oxygen atom or a sulfur atom, and bonding via CR20R21. R20 and R21 independently have the same meaning as R1 to R19. X1 and X2 independently denote an oxygen atom, a sulfur atom, CR20R21, or a single bond. Ar denotes an aromatic hydrocarbon group or a heterocyclic group, n denotes an integer in the range of 0 to 2, and m denotes an integer in the range of 1 to 4. When n is 0, any one of R1 to R8 is directly bonded to any one of R9 to R19.

Abstract: An organic light-emitting device includes, in sequence, an anode, a first light-emitting layer, a second light-emitting layer, and a cathode, in which the first light-emitting layer contains at least a first host and a first guest that fluoresces, the second light-emitting layer contains at least a second host and a second guest that fluoresces, each of the first light-emitting layer and the second light-emitting layer contains no amine compound, and each of the first host and the second host is a hydrocarbon compound whose carbon atoms are SP2 carbon atoms only and has any of structures represented by formulae [1] to [6]: where A to C are each an anthracene residue, a pyrene residue, a benzanthracene residue, a benzpyrene residue, a phenanthrene residue, or a fluoranthene residue, and each of A to C optionally further contains a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group.

Abstract: A composition contains an organic compound and an anthracene compound different from the organic compound, the anthracene compound having a hydrogen atom at at least one of positions 9 and 10, in which the concentration of the anthracene compound is 100 ppm or less. Additionally, a long-lived organic light-emitting device includes an organic compound layer containing a reduced concentration of the anthracene compound.

Abstract: An organic compound denoted by formula (1) below. In formula (1), each of R1 to R8 is selected from the group consisting of a hydrogen atom, an alkyl group, and the like. A represents a structure denoted by A above, * represents a position where bonding is performed. In A, B is selected from structures denoted by (B-1) and the like above, * represents a position where bonding is performed. In (B-1) and the like, each of R9 to R17 is selected from a hydrogen atom, an alkyl group, and the like. X represents an oxygen atom or a sulfur atom.

Abstract: An imaging display device includes an imaging unit, a processing unit, a display unit, and a pupil detection unit. The imaging unit includes a plurality of photoelectric conversion elements and is configured to acquire first image information. The processing unit is configured to process a signal from the imaging unit and generate second image information. The display unit is configured to display an image that is based on the signal from the processing unit. The pupil detection unit is configured to detect vector information of a pupil. The processing unit generates the second image information by processing the first image information based on the vector information on the pupil.

Abstract: The present disclosure provides an organic compound represented by general formula [1] below. In formula [1], Ar1 and Ar2 each represent an alkyl group having 1 to 8 carbon atoms, an aromatic hydrocarbon group having 6 to 18 carbon atoms, or a heteroaromatic group having 3 to 17 carbon atoms. Ar1 and Ar2 may be the same or different. Ar3 and Ar4 are each a substituent having a carbazolyl group. Ar3 and Ar4 may be the same or different. Ar1 to Ar4 may be substituted. At least one of Ar1 to Ar4 has a tert-butyl group. The total number of tert-butyl groups in one molecule of the organic compound is 2 or more.

Abstract: An organic compound represented by the following general formula [1] is provided. In the following general formula [1] IrLmL?n, where L and L? denote different bidentate ligands, the partial structure IrL denotes a partial structure represented by the general formula [A-1] or [A-2], and the partial structure IrL? denotes a partial structure represented by the general formula [B-1] or [B-2].

Abstract: An organic compound represented by general formula [1]: where in formula [1], R1 to R14 are each independently selected from, for example, a hydrogen atom and an alkyl group, provided that at least one of R1 to R14 is a tertiary alkyl group, m is an integer of 1 or more and 3 or less, and n is an integer of 0 or more and 2 or less, provided that m+n is 3, X is a bidentate ligand, and a partial structure IrX is any of structures represented by general formulae [2] and [3], where in formulae [2] and [3], R21 to R23, and R31 to R38 are each independently selected from, for example, a hydrogen atom and an alkyl group, and adjacent groups of R35 to R38 are optionally taken together to form a ring.

Abstract: An organic compound is represented by formula [1]. In formula [1], L and L? are bidentate ligands different from each other, a partial structure IrLm is a partial structure represented by formula [2], and a partial structure IrL?n is a partial structure represented by formula [3-1] or formula [3-2].

Abstract: An organic light-emitting device includes first and second electrodes and a light-emitting layer disposed between the first and second electrodes. The light-emitting layer contains first and second compounds. The first compound is represented by formula [1] or [2]. The second compound is a hydrocarbon compound. In formulae [1] and [2], R1 to R12 and R21 to R32 are each independently selected from a hydrogen atom, alkyl groups, and other groups. Each m is an integer of 1 or more and 3 or less, and each n is an integer of 0 or more and 2 or less, provided that m+n is 3. Each X is a bidentate ligand. Each partial structure IrX is any of the structures illustrated in formulae [3] to [5]. In formulae [3] to [5], R41 to R55 are each independently selected from a hydrogen atom, alkyl groups, and other groups.

Abstract: A organic light-emitting element including a positive electrode, a light-emitting layer, and a negative electrode in this order, wherein the light-emitting layer contains a dopant material, a host material, and an assist material, the dopant material is a compound represented by the following general formula [1], the host material is a hydrocarbon compound, and the assist material has a lower LUMO level than the host material. In the formula [1], R1 to R10 denote a hydrogen atom, an alkyl group, or the like. X denotes O or S. m denotes an integer in the range of 1 to 3, and n denotes an integer in the range of 0 to 2, provided that m+n is 3. The partial structure IrLn is any one of structures represented by the following formulae [2] and [3], wherein R11 to R21 denote a hydrogen atom, an alkyl group, or the like.

Abstract: A composition contains an organic compound and an anthracene compound different from the organic compound, the anthracene compound having a hydrogen atom at at least one of positions 9 and 10, in which the concentration of the anthracene compound is 100 ppm or less. Additionally, a long-lived organic light-emitting device includes an organic compound layer containing a reduced concentration of the anthracene compound.

Abstract: An imaging display device includes an imaging unit, a processing unit, a display unit, and a pupil detection unit. The imaging unit includes a plurality of photoelectric conversion elements and is configured to acquire first image information. The processing unit is configured to process a signal from the imaging unit and generate second image information. The display unit is configured to display an image that is based on the signal from the processing unit. The pupil detection unit is configured to detect vector information of a pupil. The processing unit generates the second image information by processing the first image information based on the vector information on the pupil.

Abstract: An organic compound represented by the following general formula [1] is excellent in thermal stability. In the general formula [1], R1 to R12 are each independently selected from the group consisting of a hydrogen atom and a substituent. Symbol A is selected from the group consisting of a divalent residue of naphthalene, phenanthrene, fluorene, benzofluorene, dibenzofluorene or spirofluorene, and a heteroarylene group having 4 to 12 carbon atoms. Symbol B is selected from the group consisting of an arylene group having 6 to 25 carbon atoms and a heteroarylene group having 4 to 12 carbon atoms. Symbol n is an integer of 0 to 3.

Abstract: The present disclosure provides an organic compound represented by general formula [1] below. In formula [1], Ar1 and Ar2 each represent an alkyl group having 1 to 8 carbon atoms, an aromatic hydrocarbon group having 6 to 18 carbon atoms, or a heteroaromatic group having 3 to 17 carbon atoms. Ar1 and Ar2 may be the same or different. Ar3 and Ar4 are each a substituent having a carbazolyl group. Ar3 and Ar4 may be the same or different. Ar1 to Ar4 may be substituted. At least one of Ar1 to Ar4 has a tert-butyl group. The total number of tert-butyl groups in one molecule of the organic compound is 2 or more.

Abstract: An organic compound is represented by formula (1). In the formula (1), R1 to R24 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.

Abstract: An organic compound represented by formula [1], where in formula [1], R1 to R8 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, and other substituents, and X1 is oxygen, sulfur, selenium, tellurium, or a CR9R10 group, in which R9 and R10 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, and other substituents, and at least one of R1 to R8 is a group represented by formula [2].

Abstract: An organic compound represented by formula (1). In formula (1), each of R1 to R22 is independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.

Abstract: An organic compound is represented by formula (1). In the formula (1), R1 to R24 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.