LED displays are electronic devices that are made with a combination of segments. Under these segments are red, green or blue SMD LEDs.
7-segment LED displays are available in 1 to 4 digits. You can most often see these displays in clocks, washing machines and kitchen appliances. Select from common cathode or anode to suit your needs. The 'dynamic' displays can help save the precious pinouts of your microcontroller.
The 10-segment LED bar graph displays consist of ten rectangular segments in parallel. They can be used to indicate volume or progress. They are available in packs of two, with red or green color, or a combination of the two.