This reports on a study of a stereoscopic display using laser scanning. In lenticular 3D displays, when viewing angle changes, displayed solid image changes. The continuousness of this change is determined by the number of pixels arranged to the width of one lens. We made a minute radiant on a screen by laser light and some lenses. And we scanned that radiant to two dimension using a polygon mirror and a galvanometer mirror. And we control the ON/OFF of the laser light. And therefore we came to be able to draw any two dimension images. As a result, we achieved 600-dpi-ultra-high-density display. And with this ultra-high-density display and 60 lpi (line per inch) lenticular lens, we achieved high-resolution, 10-direction and naked-eye stereoscopic display.