Some companies also call DOT matrix LED. The DOT of most LED DOT matrix dsipaly is round. But some LED DOT matrix displays have square DOT. We call it special LED DOT matrix dislay, too. LED matrix display can show pictures and words, and RGB LED matrix even can show video. LED matrix has the size from 0.7'' to 4.6''. According to its DOT arrangements, LED DOT matrix display also can be divided into 5*7 DOT matrix, 5*8 DOT matrix and 8*8 DOT matrix. Actually there are also LED matrix consists of LED lamps. Or we can call it LED lamps matrix. Because its dots are made of LED lamps. DOT LED matrix can be used to show information in bus stations, cinemas, squares and other public places. Part No. Title of LED DOT matrix is NFM which means Ningbo Flying LED Matrix.

A DOT matrix display is a display device used to display information on machinery, clocks, railway departure indicators and many and other devices requiring a simple display device of limited resolution. The display consists of a matrix of lights or mechanical indicators arranged in a rectangular configuration (other shapes are also possible, although not common) such that by switching on or off selected lights, text or graphics can be displayed. A DOT matrix controller converts instructions from a processor into signals which turns on or off lights in the matrix so that the required display is produced.