Blue fluorescent composition and organic electroluminescent device using the same

An organic electroluminescent device, comprising:

• a first electrode;
• a second electrode facing the first electrode;
• and
• an organic electroluminescent diode positioned between the first and second electrodes and includes an emitting material layer, the emitting material layer includes:
• a host material being capable of transporting an electron or a hole;
• and
• a dopant material represented by Formula 1:
• wherein one of the R1, the R2, the R3, the R4, and the R5 is selected from C6-C30 substituted or non-substituted aromatic group, two of the R1, the R2, the R3, the R4, and the R5 are hydrogen, and another two of the R1, the R2, the R3, the R4 and the R5 are fluorine, wherein the R6 is selected from C6-C30 substituted aromatic group, and the another two of the R1, the R2, the R3, the R4, and the R5, which are fluorine, are positioned at meta-positions or para-positions with respect to each other, and wherein a substituent of the R6 is selected from trimethylsilyl or cyano.