An LED sign is made up of individual panels called modules. The modules, which are usually about 10-12” square, can be configured to create almost any size of display. LED displays can produce up to 281 trillion colors.

The pixel pitch (e.g. 20mm, 10mm) we often hear about is a measurement of the distance between pixels (a pixel is typically comprised of a cluster of three LEDs – one red, one green and one blue). The distance between each pixel is measured in millimeters, the smaller the pitch, the closer the distance between pixels, giving your audience with more life-like images.

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  p4(4mm)

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  p8(8mm)

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  p10(10mm)

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  p16(16mm)

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  p20(20mm)

Different from Full HD and 4K for LCD resolution, when talking about the resolution of LED sign, you must often hear of P20, P10, etc…. The resolution of digital signs referred to by their matrix configuration, In terms of sign “matrix”, it is the number of pixels high by the number of pixels wide of your sign. Two same size signs that have different pixel pitch will have different matrices, then different resolution. For instance, a P10 sign that is 9’5” by 5’9” has a matrix of 288 x 176 while a P16 of the same size has a matrix of 180 x 109. Put in a simply way, two signs with same physical size, the smaller the pixel pitch, the higher matrix, the better resolution.

An LED (light-emitting diode) is a two-leadsemiconductorlight source. It is a p–n junctiondiode, which emits light when activated.When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. Unlike traditional light bulbs, LEDs do not burn out because there is no filament and can last from 10 years and longer.

An LED (light-emitting diode) is a two-leadsemiconductorlight source. It is a p–n junctiondiode, which emits light when activated.When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. Unlike traditional light bulbs, LEDs do not burn out because there is no filament and can last from 10 years and longer.

The “package type” refers to the way an LED’s semiconductor die–similar to the filament in an incandescent–is ¬packaged inside LED devices for different applications. The LED package can be very basic, like with the DIP LEDs, or it can be very versatile to handle lots of different needs, such as with the SMD package.

DIP (Dual In-Line Package) LED technology has been around for more than 50 years, and they are used extensively today for large signs and displays. The widespread use of DIP LEDs came about due to their long life-span and intense brightness. DIP LEDs are highly recognizable by their “bullet” shaped design (≤5mm wide), and the long contacts that extend from the bottom of the LED which can be easily soldered or inserted into a circuit board. The LED’s plastic and epoxy casing actually serves as a lens that can focus the light coming from the diode.

The SMD (Surface Mounted Device) chips, have become very popular due to their versatility. SMD LEDs can be mounted to printed circuit board (PCB) using SMT technology, these chips are much smaller in comparison to the DIP technology, which tends to give them the added versatility over DIP diodes. SMD technology also supports chips with more complicated designsthat have RGB capabilities on a single chip. This is very powerful for color combinations, as opposed to the DIP technology, which can only display one color per device. SMD chips also can have more than just two contacts (one anode and one cathode). SMD chips can have 2, 4 or 6 contacts, depending on the number of diodes on the chip. With the SMD design, there is an individual circuit for each diode.