电视图像是由一个个像素组成,将许许多多个像素连接起来就成了一条扫描线,再将许许多多条扫描线连接起来就成了一幄图像。由于“集点成线”、“集线成像”的速度很快,瞒过了人的眼晴(人眼有视觉暂留效应),因此,看上去是一幅幅连续的图像。电视中每行、每幅图像的像素是固定的,所以,荧光屏越小,图像越清晰。 TV images are made up of one pixel. Connecting a large number of pixels to form a scan line, an image is formed by connecting as many scan lines as possible. Due to the “set point into the line,” “concentrated line imaging” fast, hiding from the human eye (the human eye has a visual persistence effect), therefore, appears to be a continuous image. Each row of TV, each image pixel is fixed, so the smaller the screen, the image more clearly.