An organic electroluminescence device comprising: an anode, a cathode, and an emitting region between the anode and the cathode, wherein the emitting region comprises a first emitting layer and a second emitting layer, the first emitting layer and the second emitting layer are directly adjacent to each other, the first emitting layer is between the anode and the second emitting layer, and one of the first emitting layer and the second emitting layer comprises a compound having at least one deuterium atom.

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

A compound represented by the following general formula has excellent light-emitting characteristics and emits light at a short wavelength. Y.sup.1 is N—R.sup.A; Y.sup.2 is O, S, C═O or N—R.sup.A; R.sup.A is an aryl group, etc.; R.sup.1 to R.sup.11 each are a hydrogen atom or a substituent; at least one of R.sup.1 to R.sup.3 is a carbazolyl group substituted with an aryl group, etc.

##STR00001##

An organic electroluminescence device of an embodiment includes a first electrode, a second electrode facing the first electrode, and organic layers disposed between the first electrode and the second electrode, wherein the organic layers include at least one organic layer that includes a fused polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.

##STR00001##

The present invention relates to a phenyl-derivative compound substituted with at least two electron acceptors and at least two electron donors. Formula (I) R.sup.AaR.sup.DbR.sup.ScC.sub.6 wherein a is 2, 3 or 4; b is 2, 3 or 4; c is 0, 1 or 2; a+b−c=6; R.sup.A is at each occurrence independently a group with −M-effect; R.sup.B is at each occurrence independently a group with +−M-effect; R.sup.S is as defined in claim 1. Said compound is suited for use in organic electronic devices, particularly in organic electroluminescent devices.

An organic molecule is disclosed having a structure of Formula I: ##STR00001##
wherein X is O or S; Y is O or S; R.sup.1 is selected from the group consisting of: hydrogen, deuterium, C.sub.1-C.sub.5-alkyl, which is optionally substituted with one or more substituents R.sup.5; C.sub.6-C.sub.60-aryl, which is optionally substituted with one or more substituents R.sup.5; and C.sub.3-C.sub.57-heteroaryl,
which is optionally substituted with one or more substituents R.sup.5.

An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode The emission layer may include a condensed polycyclic compound represented by Formula 1, which is connected to two or three substituents represented by Formula 2, and the OLED may exhibit excellent luminous efficiency: ##STR00001##

An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, and the emission layer includes a polycyclic compound represented by Formula 1. The organic electroluminescence device may exhibit high luminous efficiency and/or service life characteristics: ##STR00001##

An organic electroluminescence device including: an anode, a cathode, and at least one emitting layer between the cathode and the anode, wherein the emitting layer contains a first host material, a second host material, and a dopant material, the first host material is a compound having at least one deuterium atom, and the emitting layer contains the first host material in the proportion of 1% by mass or more.

The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by [Chemical Formula A], wherein [Chemical Formula A] is as defined in the description.