Abstract: A pyrene-based compound and an organic light-emitting diode including the pyrene-based compound are provided. The pyrene-based compound of Formula 1 above may emit blue light having high color purity. For example, an organic light-emitting diode including the pyrene-based compounds of the invention may emit blue light having a y coordinate with a color purity of 0.1 or less, for example, a color purity of 0.09 or less, which is near to the NTSC or sRGB specification. A thin film including the pyrene-based compounds of the invention may be highly amorphous, and thus may have improved electrical stability. Accordingly, an organic light-emitting diode including the pyrene-based compounds of the invention may have improved lifetime characteristics.

Abstract: An organic light-emitting device is disclosed, the organic light-emitting device comprising a first electrode, a second electrode disposed opposite to the first electrode, and an emission layer comprising organic materials and disposed between the two electrodes. The emission layer may include a host and a dopant. The host may be a silane derivative of anthracene having at least one silicon substituent that is an aryl group having at least two rings that are fused to each other. The dopant may be a 7H-benzo[c]fluorene having diarylamino substituents at the 5- and 9-positions. This scheme provides organic light-emitting devices having low driving voltages, high light-emitting efficiencies and long lifetimes.

Abstract: A pyrene-based compound and an organic light-emitting diode including the same, the pyrene-based compound being represented by Formula 1, below:

Abstract: A condensed cyclic compound represented by Formula 1 below and an organic light-emitting device (OLED) including the condensed cyclic compound are presented. Ar1 and Ar2 in Formula 1 are each independently one of a hydrogen atom, an aryl or heteroaryl group and an arylamino group, at least one of Ar1 and Ar2 being a substituted or unsubstituted 1,2,4-triazol-4-yl group; L1 and L2 in Formula 1 are linking groups, each independently one of a cyclic or noncyclic, saturated or unsaturated hydrocarbon group and a heteroarylene group; a and b in Formula 1 are each independently one of 0 or 1; and R1 to R8 in Formula 1 being each independently one of a variety of inorganic and organic substituents including cyclic or noncyclic, saturated or unsaturated and aromatic, nonaromatic or heteraromatic groups. The OLED may have a low driving voltage, a high emission efficiency and long lifespan characteristics.

Abstract: A cascade-type compound and an organic light-emitting device (OLED) including the same are provided.

Abstract: A carbazole-based compound of Formula 1 and an organic light-emitting diode including the same. The carbazole-based compound represented by Formula 1 has a triarylamine structure, wherein at least one of R1 to R5 is essentially a nitrogen-containing group. Thus, the carbazole-based compound has high glass transition temperature and/or high melting point, and is stable during electron injection, and when interposed between a pair of electrodes (anode and cathode) of an organic light-emitting diode, the carbazole-based compound may have excellent thermal resistance against Joule's heat generated in organic layers between the pair of electrodes, between the organic layers, or between the organic layer and the electrode during an operation of the organic light-emitting diode.

Abstract: An organic light-emitting diode including: a first mixed layer between an emission layer and a first electrode and including first and second compounds; a second mixed layer between the emission layer and the first mixed layer and including third and fourth compounds; a first charge generation layer between the first mixed layer and the first electrode and including the first and second compounds and a first charge generation material; a second charge generation layer between the first mixed layer and the second mixed layer and including the third and fourth compounds and a second charge generation material; and a buffer layer between the emission layer and the second mixed layer, the first and the third compounds are each independently a compound represented by Formula 1 below, and the second compound and fourth compounds are each independently a compound represented by Formula 2 below:

Abstract: An organic light-emitting diode including: a first mixed layer between an emission layer and a first electrode and including first and second compounds; a second mixed layer between the emission layer and the first mixed layer and including third and fourth compounds; a first charge generation layer between the first mixed layer and the first electrode and including the first and second compounds and a first charge generation material; a second charge generation layer between the first mixed layer and the second mixed layer and including the third and fourth compounds and a second charge generation material; and a buffer layer between the emission layer and the second mixed layer, the first and the third compounds are each independently a compound represented by Formula 1 below, and the second compound and fourth compounds are each independently a compound represented by Formula 2 below:

Abstract: An organic light-emitting diode including a first electrode; a second electrode facing the first electrode; an emission layer interposed between the first electrode and the second electrode; a first hole transport layer including a first hole transporting compound; a second hole transport layer including a second hole transporting compound, the first and second hole transport layers being interposed between the first electrode and the emission layer; an electron transport layer interposed between the emission layer and the second electrode; a first mixing layer interposed between the first electrode and the first hole transport layer, contacting the first hole transport layer, and including the first hole transporting compound and a first cyano group-containing compound; and a second mixing layer interposed between the first electrode and the second hole transport layer, contacting the second hole transport layer, and including the second hole transporting compound and a second cyano group-containing compound

Abstract: An organic light-emitting diode includes a first electrode; a second electrode facing the first electrode; an emission layer (EML) between the first electrode and the second electrode; a first charge generation layer between the EML and the first electrode and including a first compound and a first charge generation material; a first layer between the EML and the first charge generation layer and including a second compound; a second charge generation layer between the EML and the first layer and including a third compound and a second charge generation material; a second layer between the EML and the second charge generation layer and including a fourth compound; and a buffer layer between the EML and the second layer. The first and third compounds each independently includes a compound represented by Formula 1, and the second and fourth compounds each independently includes a compound represented by Formula 2.

Abstract: Provided are an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode adjusts an optical resonance thickness and prevents spectrum distortions without use of an auxiliary layer. The organic light emitting diode includes a first electrode that is optically reflective; a second electrode that is optically transmissible and faces the first electrode; an organic emission layer interposed between the first electrode and the second electrode, the organic emission layer including: a first emission layer including a mixed layer that contains a host material and a dopant material, and a second emission layer comprising only the host material; and a carrier injection transport layer interposed between the organic emission layer and the first electrode or between the organic emission layer and the second electrode.

Abstract: An organic light-emitting device includes an emission layer between first and second electrodes, a first hole transport layer that is between the emission layer and the first electrode and that includes a first hole transport compound and a first electron acceptor, a second hole transport layer that is between the emission layer and first hole transport layer and that includes a second hole transport compound, a third hole transport layer that is between the emission layer and the second hole transport layer and that includes a third hole transport compound and a second electron acceptor, a fourth hole transport layer that is between the emission layer and the third hole transport layer and that includes a fourth hole transport compound, a buffer layer between the emission layer and the fourth hole transport layer, and an electron transport layer that includes a pyrimidine-based compound.

Abstract: In one aspect, an organic light emitting diode device that includes a first electrode, a second electrode facing the first electrode, an emission layer interposed between the first electrode and the second electrode and an auxiliary layer interposed between either one of the first electrode and the second electrode and the emission layer, wherein the auxiliary layer includes a substituted or unsubstituted pyrene-based compound having at least one appended phenyl group is provided.

Abstract: A display device is provided that may include a first electrode, an organic light emitting layer positioned on the first electrode, a second electrode positioned on the organic light emitting layer, and an electron transport layer interposed between the organic light emitting layer and the second electrode, and including an electron transport material and an electron injection material. One side portion of the electron transport layer that is adjacent to the organic light emitting layer may include a greater amount of the electron injection material than the electron transport material.

Abstract: A pyrene-based compound and an organic light-emitting diode including the same, the pyrene-based compound being represented by Formula 1, below:

Abstract: A condensed cyclic compound represented by Formula 1 below and an organic light-emitting device (OLED) including the condensed cyclic compound are presented. Ar1 and Ar2 in Formula 1 are each independently one of a hydrogen atom, an aryl or heteroaryl group and an arylamino group, at least one of Ar1 and Ar2 being a substituted or unsubstituted 1,2.4-triazol-4-yl group; L1 and L2 in Formula 1 are linking groups, each independently one of a cyclic or noncyclic, saturated or unsaturated hydrocarbon group and a heteroarylene group; a and b in Formula 1 are each independently one of 0 or 1; and R1 to R8 in Formula 1 being each independently one of a variety of inorganic and organic substituents including cyclic or noncyclic, saturated or unsaturated and aromatic, nonaromatic or heteraromatic groups. The OLED may have a low driving voltage, a high emission efficiency and long lifespan characteristics.

Abstract: A pyrene-based compound and an organic light-emitting diode including the pyrene-based compound are provided. The pyrene-based compound of Formula 1 above may emit blue light having high color purity. For example, an organic light-emitting diode including the pyrene-based compounds of the invention may emit blue light having a y coordinate with a color purity of 0.1 or less, for example, a color purity of 0.09 or less, which is near to the NTSC or sRGB specification. A thin film including the pyrene-based compounds of the invention may be highly amorphous, and thus may have improved electrical stability. Accordingly, an organic light-emitting diode including the pyrene-based compounds of the invention may have improved lifetime characteristics.

Abstract: Provided are an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode adjusts an optical resonance thickness and prevents spectrum distortions without use of an auxiliary layer. The organic light emitting diode includes a first electrode that is optically reflective; a second electrode that is optically transmissible and faces the first electrode; an organic emission layer interposed between the first electrode and the second electrode, the organic emission layer including: a first emission layer including a mixed layer that contains a host material and a dopant material, and a second emission layer comprising only the host material; and a carrier injection transport layer interposed between the organic emission layer and the first electrode or between the organic emission layer and the second electrode.

Abstract: An organic light-emitting device including a first electrode and a first layer, wherein the first electrode includes a first element-containing zinc oxide layer and the first layer includes a cyano group-containing compound.

Abstract: An organic light-emitting device is disclosed, the organic light-emitting device comprising a first electrode, a second electrode disposed opposite to the first electrode, and an emission layer comprising organic materials and disposed between the two electrodes. The emission layer may include a host and a dopant. The host may be a silane derivative of anthracene having at least one silicon substituent that is an aryl group having at least two rings that are fused to each other. The dopant may be a 7H-benzo[c]fluorene having diarylamino substituents at the 5- and 9-positions. This scheme provides organic light-emitting devices having low driving voltages, high light-emitting efficiencies and long lifetimes.