Abstract: Provided are novel organic electroluminescent compounds, and organic electroluminescent devices and organic solar cells employing the same. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, A, B, C and D independently represent CR5 or N, provided that A, B, C and D cannot represent CR5 all at the same time. Since the organic electroluminescent compounds according to the invention have good luminous efficiency and excellent color purity and life property of material, OLED's having very good operation life can be manufactured therefrom.

Abstract: The present invention relates to an organic electroluminescent compound containing fluorenyl group and a display device using the same, more precisely the organic electroluminescent compound. The organic electroluminescent compound of the present invention is characterized by upgraded excellent EL property compared with the conventional host materials.

Abstract: The present invention relates to novel compounds for electronic material, and organic electroluminescent devices or organic solar cells comprising the same. Specifically, the compounds for electronic material according to the invention are characterized in that they are represented by Chemical Formula (1): Since the compounds for electronic material, when being applied to an organic electroluminescent device, show good luminous efficiency and excellent life property of material, OLED's having very good operation life can be manufactured therefrom.

Abstract: The present invention relates to organic electroluminescent compounds and organic electroluminescent devices employing the same. More specifically, the invention relates to organic electroluminescent compounds containing an anthracenyl group or an aryl group having an anthracenyl substituent m the aryl ring of fluorene or indenofluorene, as a blue electroluminescent material in an organic electroluminescent layer. The electroluminescent compounds according to the invention exhibit high luminous efficiency and excellent life property, so that an OLED device having very good operation lifetime can be prepared therefrom.

Abstract: The present invention relates to novel organic electroluminescent compounds and display devices comprising the same. The organic electroluminescent compounds according to the present invention exhibit high luminous efficiency and excellent life property, so that an OLED device having very good operation life can be prepared therefrom.

Abstract: The present invention relates to an organic electroluminescent compound including a fusion ring and an organic elecotroluminescent including the same. The organic electroluminescent according to the present invention has an advantage of exhibiting an EL properties superior to existing electroluminescent materials as it has a good thin film stability due to a low crystallization and a satisfactory color purity.

Abstract: The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices employing the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, A and B independently represent CR7 or N, provided that both A and B cannot be CR7 or N at the same time; and X is O or S.

Abstract: The present invention relates to novel organic electroluminescent materials and organic light emitting devices comprising the same. Since the organic electroluminescent materials according to the invention have good luminous efficiency and life property as an electroluminescent material, OLED's having very good operation lifetime can be produced.

Abstract: The invention provides methods and kits to detect early stage hepatocellular carcinoma or a change in the gradation of hepatocellular carcinoma in mammals. The diagnostic marker is based on the profiling and identification of diagnostic carbohydrates present in a body fluid such as blood serum.

Abstract: The present invention relates to organic electroluminescent compounds and electroluminescent devices comprising the same as host material. The electroluminescent compounds according to the invention are characterized by having three ligands, two bivalent metals and a monovalent anion derived from an inorganic or an organic acid.

Abstract: The present invention relates to a novel organic electrophosphorescent compounds and a display device comprising the same. The electroluminescent iridium compounds described above can be employed as a light emitting substance having a molecular structure which gives high efficiency in a blue phosphor material.

Abstract: Provided are novel organic electroluminescent compounds, and organic electroluminescent devices comprising the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the present invention are represented by Chemical Formula (1): wherein, at least one substituent(s) among Ar1, Ar2, R6, R7, R8, R9, R10, R11, R12, R13, R14 and R15 represent(s) The organic electroluminescent compounds according to the present invention exhibit high luminous efficiency and excellent life property of material, so that an OLED having very good operation life can be manufactured therefrom. Further, the organic electroluminescent compound according to the present invention, when it is contained in an electroluminescent layer or a hole transport layer, lowers the operation voltage to result in noticeable decrease in power consumption, with exhibiting at least comparable luminous efficiency as compared to conventional OLED's.

Abstract: The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices comprising the same.

Abstract: Provided are novel organic electroluminescent compounds and organic electroluminescent devices and organic solar cells comprising the same. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, R1 through R10 cannot be hydrogen all at the same time. The organic electroluminescent compounds according to the invention exhibit high luminous efficiency and excellent color purity and life property of material, so that an OLED having very good operation life can be manufactured therefrom.

Abstract: Provided are a novel organic electroluminescent compound and an organic electroluminescent device using the same as an electroluminescent material.

Abstract: The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices comprising the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, L1 is a substituent selected from the following structures; A and B independently represent a chemical bond, or a substituent selected from the following structures; m and n independently represent an integer from 0 to 4; provided that, if represents both X1 and X2 represent NR33, and both Y1 and Y2 represent a chemical bond, then R33 does not represent hydrogen or (C1-C5)alkyl. The organic electroluminescent compounds according to the invention exhibit high luminous efficiency in blue color and excellent life property of material, so that an OLED having very good operation life can be prepared therefrom.

Abstract: Provided are novel organic electroluminescent compounds characterized in that they are represented by Chemical Formula (1): wherein, ring A and ring B independently represent a saturated 5- or 6-membered heterocyclic amino group, or a substituent selected from the following structures: wherein the saturated 5- or 6-membered heterocyclic amino group may further comprise one or more heteroatom(s) selected from NR36, O and S; and a and b independently represent an integer from 0 to 4, provided that (a+b) is an integer from 1 to 4.

Abstract: The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices employing the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1). Since the organic electroluminescent compounds according to the invention have good luminous efficiency and excellent life property of material, OLED's having very good operation life can be manufactured therefrom.

Abstract: Provided are novel organic electroluminescent compounds, and organic electroluminescent devices and organic solar cells employing the same. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, A, B, C and D independently represent CR5 or N, provided that A, B, C and D cannot represent CR5 all at the same time. Since the organic electroluminescent compounds according to the invention have good luminous efficiency and excellent color purity and life property of material, OLED's having very good operation life can be manufactured therefrom.

Abstract: Provided are novel organic electroluminescent compounds and organic electroluminescent devices comprising the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): wherein, L is selected from the following structures. The organic electroluminescent compounds according to the invention exhibit high luminous efficiency in blue color and excellent life property as a material, so that an OLED having very good operation life can be prepared therefrom.