A light emitting element that includes a first electrode, a second electrode on the first electrode, and at least one functional layer between the first electrode and the second electrode is provided. The at least one functional layer includes a polycyclic compound represented by a specific chemical structure, and has a high efficiency and low driving voltage properties.

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited: ##STR00001##

The disclosure provides compounds of formula II with warheads and their use in treating medical diseases or disorders, such as viral infections. Pharmaceutical compositions and methods of making various compounds with warheads are provided. The compounds are contemplated to inhibit proteases, such as the 3C, CL- or 3CL-like protease.

##STR00001##

The invention relates to an organic molecule, in particular for use in organic optoelectronic devices. According to the invention, the organic molecule has one first chemical moiety with a structure of formula I, ##STR00001## and one second chemical moiety with a structure of formula II, ##STR00002## wherein the first chemical moiety is linked to the second chemical moiety via a single bond.

Provided are a heterocyclic compound represented by Formula 1, a light-emitting device including the heterocyclic compound, and an electronic apparatus including the light-emitting device:

##STR00001##

wherein the detailed description of Formula 1 is the same as described in the specification.

Provided are a condensed cyclic compound represented by Formula 1 and an organic light-emitting device including the same: ##STR00001##
wherein, in Formula 1, X.sub.1, A.sub.1, L.sub.11, a11, Ar.sub.11, Ar.sub.12, b11, R.sub.11, R.sub.12, c11, and c12 are the same as defined in the specification.

The present disclosure relates to a plurality of host materials comprising a first host material including a compound represented by formula 1 and a second host material including a compound represented by formula 2, and an organic electroluminescent device comprising the same. In addition, the present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound and/or a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having high luminous efficiency and long lifespan property can be provided.

Provided are a family of chromophores including naphthyl or naphthyl-like carbocyclic or heterocyclic rings as luminescent dyes that can be useful as emitters in OLEDs. These compounds have Formula I,

##STR00001##

Also provided are formulations including these inventive compounds. Further provided are OLEDs and related consumer products that utilize these inventive compounds.

Provided is a novel heterocyclic compound of Chemical Formula 1: ##STR00001##
and to an organic light emitting device including the same.

An organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the hole transport region includes a polycyclic compound represented by Formula 1, and the device shows high emission efficiency:

##STR00001##