An organic molecule (in, e.g., optoelectronic devices) has a structure of Formula I:

##STR00001##

wherein:
R.sup.I, R.sup.II, R.sup.III, R.sup.IV, R.sup.V, R.sup.VI, R.sup.VII, R.sup.VIII, R.sup.IX, R.sup.X, R.sup.XI, R.sup.A, R.sup.B, R.sup.C and R.sup.D are each independently selected from the group consisting of:
hydrogen, deuterium, halogen,
C.sub.1-C.sub.12-alkyl,
wherein optionally one or more hydrogen atoms are independently substituted by R.sup.5; C.sub.6-C.sub.18-aryl,
wherein optionally one or more hydrogen atoms are independently substituted R.sup.5; and C.sub.3-C.sub.15-heteroaryl,
wherein optionally one or more hydrogen atoms are independently substituted R.sup.5; any adjacent two from among R.sup.I, R.sup.II, R.sup.III, R.sup.IV, R.sup.V, R.sup.VI, R.sup.VII, R.sup.VIII, R.sup.IX, R.sup.X, R.sup.XI, R.sup.A, R.sup.B, R.sup.C, R.sup.D may form a monocyclic ring system with 5 to 8 C-atoms, and
wherein, optionally, each hydrogen can independently from each other be substituted by R.sup.6; and
at least R.sup.A and R.sup.B together form a monocyclic ring system with 5 to 8 C-atoms.

Disclosed are an organic light-emitting device and an electronic apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host compound, a first dopant compound, and a second dopant compound, and the second dopant compound is represented by Formula 1,

A-(Ar.sub.1).sub.n11  Formula 1

wherein, in Formula 1, A is a group represented by Formula 1-1,

##STR00001##

wherein, in Formulae 1 and 1-1, Ar.sub.1, n11, M, CY.sub.1 to CY.sub.5, R.sub.1 to R.sub.5, and a1 to a5 are the same as described in the specification.

Provided is a light emitting device including a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and the second electrode, and the at least one functional layer may include an amine compound represented by Formula E, thereby exhibiting high luminous efficiency and improved service life characteristics.

##STR00001##

A photochromic curable composition comprising a radically polymerizable monomer having at least one oxetanyl group in one molecule, a photochromic compound and radically polymerizable monomers other than the above polymerizable monomer, and a photochromic cured body obtained by polymerizing the photochromic curable composition.

An organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.

Provided are a nitrogen-containing compound, an organic electroluminescent device and an electronic apparatus. The nitrogen-containing compound has a structure as shown in chemical formula 1; Ar.sub.1 and Ar.sub.2 are the same or different, and each is independently selected from a substituted or unsubstituted C6-C30 aryl, or a substituted or unsubstituted C3-C30 heteroaryl; and R.sub.0 is selected from hydrogen, a C1-C6 alkyl, a substituted or unsubstituted C6-C30 aryl, or a substituted or unsubstituted C3-C30 heteroaryl. The nitrogen-containing compound acts as a hole transporting material or a host material of a luminescent layer and can effectively improve the performance of organic electroluminescent devices.

##STR00001##

Provided is an organic light-emitting device including an anode; a cathode; a light-emitting layer between the anode and the cathode and including a compound of Chemical Formula 2:

##STR00001## a first organic material layer between the anode and the light-emitting layer and including a compound of Chemical Formula 1:

##STR00002## and a second organic material layer between the light-emitting layer and the cathode and including a compound of Chemical Formula 3:

##STR00003## wherein: Ar101, Ar102 and R101 to R108 are each independently hydrogen, deuterium, or a substituted or unsubstituted alkyl or aryl group; Ar1 and Ar2 are each independently hydrogen, deuterium, a halogen, a cyano, or a substituted or unsubstituted silyl, alkyl, cycloalkyl, or aryl group; R201 to R204 are each independently hydrogen, deuterium, a halogen, a cyano, or a substituted or unsubstituted alkyl, cycloalkyl, aryl group, or heterocyclic group; and Z is O or S.

The present invention relates to an imidazopyridine-based arylamine compound and an application thereof. The compound has a structure as shown in Formula I. The compound of the present invention has the advantages such as, a low sublimation temperature, a good thermal stability, a high refractive index, and a small refractive index difference in the visible light region, and can be used as a light extraction layer material for use in an organic light-emitting device.

##STR00001##

Disclosed is a polycyclic compound that can be employed in various organic layers of an organic electroluminescent device. Also disclosed is an organic electroluminescent device including the polycyclic compound. The organic electroluminescent device includes a light emitting layer employing the polycyclic compound as a dopant and an anthracene derivative having a characteristic structure and characteristic substituents as a host. The use of the polycyclic compound significantly improves the color purity, luminous efficiency, and life characteristics of the organic electroluminescent device and makes the organic electroluminescent device highly efficient and long lasting.

Provided is a heterocyclic compound of Chemical Formula 1: ##STR00001## wherein: W1 and W2 are the same as or different from each other, and each independently is O or S; A1 and A2 each independently is a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; R1 to R7 each independently is hydrogen, deuterium, a nitrile group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and R1 to R7, A1 and A2 bond to adjacent substituents to form a substituted or unsubstituted ring,
and an organic light-emitting device including the same.