16只LED发光管作为画面每一列的显示，左右摇晃起到了扫描的作用，人眼的视觉暂留现象使得看到的是一幅完整的画面。与LED点阵的显示有几分相仿-16 only LED tube as picture each column display, or so the role of a scan shaking, the human eye vision for a phenomenon that see a picture of screen. And of LED dot matrix displa