Concept Analysis and Classification of LED Electronic Display Screens
LED electronic display screens are composed of tens of thousands to hundreds of thousands of semiconductor light-emitting diode pixels arranged uniformly. Different materials can be used to produce LED pixels of various colors. Currently, red, green, and yellow are widely used. The development of blue and pure green LEDs has already reached a practical stage.
LED electronic display screens are composed of tens of thousands to hundreds of thousands of semiconductor light-emitting diode pixels arranged uniformly. Different materials can be used to produce LED pixels of various colors. Currently, red, green, and yellow are widely used. The development of blue and pure green LEDs has reached a practical stage.
LED display screens can show changing numbers, text, graphics, and images; they can be used not only indoors but also outdoors, possessing advantages that projectors, video walls, and LCD screens cannot match.
The widespread attention and rapid development of LED electronic display screens are inseparable from their inherent advantages. These advantages can be summarized as: high brightness, low operating voltage, low power consumption, miniaturization, long lifespan, impact resistance, and stable performance. The development prospects of LEDs are extremely broad, currently moving towards higher brightness, better weather resistance, higher luminous density, more uniform light emission, reliability, and full color.
1. LED electronic display screens can be divided by primary color:
Single primary color display screen: single color (red or green).
Dual primary color display screen: red and green dual primary colors, 256 levels of gray scale, capable of displaying 65,536 colors. Full-color display screen: red, green, and blue three primary colors, 256 levels of gray scale full-color display screen can display over sixteen million colors.
2. LED electronic display screens can be classified by display device:
LED digital display screen: display device is a 7-segment digital tube, suitable for making clock screens, interest rate screens, etc., displaying numbers. LED dot matrix text and graphic display screen: display device consists of many uniformly arranged light-emitting diodes forming a dot matrix display module, suitable for playing text and image information.
3. LED electronic display screens can be classified by usage environment:
Indoor display screen: smaller light points, generally Φ3mm to Φ8mm, display area usually several to a dozen square meters. Outdoor display screen: area generally from tens to hundreds of square meters, high brightness, can operate under sunlight, with windproof, rainproof, and waterproof functions.
4. LED electronic display screens can be classified by the diameter of the light-emitting points:
Indoor screens: Φ3mm, Φ3.75mm, Φ5mm
Outdoor screens: Φ10mm, Φ12mm, Φ16mm, Φ19mm, Φ21mm, Φ26mm
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