A silicon-based compound represented by Formula 1 below and an organic light-emitting device including the silicon-based compound are provided. According to one or more embodiments of the present invention, an organic light-emitting device includes: a substrate; a first electrode; a second electrode disposed opposite to the first electrode; and an organic layer disposed between the first electrode and the second electrode and including an emission layer, wherein the organic layer include at least one of the silicon compounds of Formula 1 ##STR00001##

The present invention describes carbazole derivatives formula (1), where the following applies to the symbols used: Y is on each occurrence, identically or differently, CR or N; X is selected from C(R1)2, O, S, PR1, P(═O)R1 or BR1; characterized in that at least one group R is present which stands, identically or differently on each occurrence, for a group of the following formula (2), and/or in that at least one group R1 is present which stands for a group of the following formula (3) or (4), in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising same.

An exemplary embodiment of the present application provides a new compound and an organic electronic device using the same. The organic electronic device according to an exemplary embodiment of the present application shows excellent characteristics in terms of efficiency, driving voltage, and service life.

An organic light-emitting device with a sealing layer covering a light-emitting diode, wherein the sealing layer comprises n number of sealing units, each comprising a sequential stack of an organic film and an inorganic film, wherein n is an integer of 1 or greater and a method of manufacturing the same.

An organic electroluminescence device including at least an anode, an emitting layer, an electron-transporting region and a cathode in sequential order, wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is equal to or larger than the affinity Ah of the host; the triplet energy E.sup.T.sub.d of the dopant is larger than the triplet energy E.sup.T.sub.h of the host; and a blocking layer is provided within the electron-transporting region such that it is adjacent to the emitting layer, and the triplet energy E.sup.T.sub.b of the blocking layer is larger than E.sup.T.sub.h.

A tris-type iridium complex in which a ligand having a distinctive nitrogen-containing five-membered heterocyclic skeleton is coordinated is provided. The ligand has a nitrogen-containing five-membered heterocyclic skeleton composed of 2 to 4 nitrogen atoms and one or more carbon atoms. In the skeleton, an aryl group is bonded to a carbon atom on both sides of which nitrogen atoms are positioned, and a tricycloalkyl group having a bridge structure and having 9 or 10 carbon atoms is bonded to one of the two nitrogen atoms positioned on both the sides of the carbon atom. The tricycloalkyl group having a bridge structure and having 9 or 10 carbon atoms may be an adamantyl group or a noradamantyl group.

Disclosed are a compound for an organic optoelectronic device, an organic light emitting diode including the same, and a display device including the organic light emitting diode. The compound for an organic optoelectronic device represented by a combination of the following Chemical Formula 1 and Chemical Formula 2 provides an organic light emitting diode having life-span characteristics due to excellent electrochemical and thermal stability, and high luminous efficiency at a low driving voltage.

A polymer comprising an optionally substituted repeat unit of formula (I): wherein R.sup.1 and R.sup.2 in each occurrence are independently selected from H or a substituent; R.sup.1 and R.sup.2 may be linked to form a ring; and A is an optionally substituted linear, branched or cyclic alkyl group. ##STR00001##

An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.

Provided are a compound capable of lowering a driving voltage, enhancing light emitting efficiency and thermal resistance, and improving lifespan and color purity of the element, an organic element using the same, and an electric device for the same.