SMD LED (acronym for Surface-Mount-Device, Light-Emitting-Diode)  is a type of LED characterized by having a 3 in 1 encapsulation, meaning that it integrates all 3 colors (Red, Green, Blue) in a single system.
 
The assembly on the circuit board is done by a polarization process on the front of the LED module. It is important that this process is carried out with high-quality equipment in order to avoid future problems such as loose or non-functioning LEDs

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SMD LED STRUCTURE AND DESIGN

SMD LEDs are rectangular in shape and consist of three cells. These cells contain a luminescent element (semiconductor crystal) that produces light when current flows through it.To protect the SMD cells, resins are used to completely cover the upper part. These resins for SMD are available in various colors and shades.Depending on the number of cells in the SMD led, it will have a certain number of contacts for welding. For a single-color LED, one of them is always the anode (+) and the other will be the cathode (-). In the case of an SMD RGB LED it usually has a cathode contact and an anode for each luminescent element. Depending on the manufacturer and the LED specification, the configuration and number of connection points can vary.

SMD LED SIZES

Depending on their size, LED types are classified with a 4-digit number: the first 2 digits for the length and the next 2 for the LED height in tenths of a millimeter. For example, a 5050 led is 5x5mm. The following table shows the most commonly used SMD LED types:

SMD LED BRIGHTNESS

SMD LEDs are currently the most used type of LED on the market. The large-scale production of manufacturers has reduced its price significantly. The development and continuous innovation in the luminescent part of the semiconductor crystals ensures that, year after year, these LEDs offer more luminosity with the same power consumption.

APPLICATIONS AND USES

SMD LEDs are currently the most used type of LED on the market. The large-scale production of large manufacturers has reduced their price significantly.  The development and innovation in the luminescent part of the semiconductor crystals offer brighter SMD LEDs year after year, with a lower power consumption. Due to this, SMD LEDs are widely used in domestic and industrial lighting systems, in vehicles, as well as personal electronic devices such as LED screens, televisions, projectors, and so on. SMD LEDs with the RGB system are used for decorative lighting and big full color image screens.
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TV with LED retro-illumination
LED projector
LED screen

TYPES OF SCREENS WITH SMD LED

Visual Led offers several types of LED screens that use SMD LEDs. Classified in the following categories:

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