Blue, top emissive organic light-emitting diodes (TEOLEDs) are hard to fabricate because of strong microcavity effects in these diodes. In this letter blue TEOLEDs based on the blue emissive material, 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl, are acquired with the choice of a highly transparent cathode together with the utilization of a light outcoupling layer onto the cathode, in which microcavity effects, especially for multiple-beam interference, are restrained by decreasing the reflectivity of the cathode. It is worth mentioning that wide-angle interference is used in this letter to enhance the blue emission. The thickness of the light outcoupling layer is optimized and its effect on the electrical and optical characteristics of the TEOLEDs is also explored. As a result, the high performances such as high brightness, large luminous efficiency, and saturated chromaticity are obtained in the blue TEOLED, which are comparative to those in the bottom emissive OLEDs.