The following images show the screen of a cell phone under 40X and 100X magnifications. The basis of displaying images on these screens is the pixel. Pixels are small repeating units that in combination create the illusion of continuous lines and shapes. On this screen, every pixel is smaller than one-tenth of a millimeter. Therefore, it is impossible to see individual pixels. Every line and shape appear to be continuous. In addition, every pixel is made up of three bands colored red, green, and blue. Adjusting the brightness of these bands, the screen creates different color pixels and with colored pixels, we get colored images.