For the development of full-color laser head-mounted display (VR-HMD), a white colored-laser light source fabricated by overlapping red-green-blue (RGB) lasers is necessary. Despite a lot of reports for the VR-HMD using RGB lasers, no report for removing crosstalk generating among beams has been done. Thus, the construction of a crosstalk removal and an electric field control devises is desirable urgently. In this work, an attempt has been made to create a function that avoids crosstalk among beams using RGB beams separated by using the time shift technique. If this function is realized, some negative influences such as an overlap among beams and field synthesis should be eliminated. In the future, the fine contrast type VR-HMD could be fabricated.