According to its DOT arrangements, we can call them 5x7 LED DOT matrix display, 5x8 LED DOT matrix display, 8x8 LED DOT matrix, 16x16 LED DOT matrix display, 4 x12 LED DOT matrix display and so on.
According to its emitted color, there are single color LED DOT matrix display, bi-color LED DOT matrix display, and RGB LED DOT matrix display.
There are various matrix height available too, such as: 0.7 inch, 1.2 inch, 1.5 inch. 1.9 inch, 2.3 inch, 3 inch, 4 inch, 4.6 inch and so on.