LED matrix: description, application

The LED matrix is both individual LEDs and LED assemblies made on a group of crystals. Such matrices have found wide application in general lighting systems for objects and premises, roads and facades of houses, they also use them for individual indoor lighting, for example, in spotlights. The LED matrix can produce, depending on the purpose, both the directional light flux and the scattered light .

The need to study the process of connecting high-power LED structures, as well as related to this process, constructive and technological problems are currently due to the rapidly growing popularity of these products, and, of course, the influence of this direction on the lighting industry. The reason for such great influence is a number of advantages that were achieved as a result of replacement of luminescent, vacuum, gas-discharge sources of insolation with modern semi-conductor light devices. It is no secret to anyone that the use of super-power diodes has significantly reduced the amount of energy consumed, and also increased the level of reliability, durability and environmental friendliness of light sources.

Thanks to the advantages mentioned above, the development and production of the latest technologies in the field of LED equipment is currently being implemented at a tremendous pace. At the same time, the requirements to the quality of dispersion of the emitted light flux, the power of the glow of semiconductor light-emitting diodes are constantly growing, which means that the requirements for matrices also increase.

LED matrix is a group of crystals, included in a mixed principle - parallel-sequential. The value of the supply voltage and current in the LED matrixes is slightly higher than the voltage and current of simple LEDs. This is because the matrix contains a whole group of semiconductor elements. For efficient and long-lasting operation, the LED array must be equipped with a powerful and stabilized DC power source (or current source and driver), as well as a heat sink. Most often in the role of heat sinks an aluminum or copper radiator is used.

As practice shows, today powerful LEDs are gaining popularity. After all, these products have significantly reduced the prime cost of the design of a powerful luminaire by integrating several crystals into one. Such an association allowed manufacturers not only to reduce the cost of production of light devices, but also significantly improve their quality. This is due to the fact that the LED matrix circuit has been significantly reduced, and the simpler the electrical circuit, the more reliable it is.

An important parameter of any LED matrix is the light efficiency. It depends on the quality of the light crystals used. However, it should be understood that even with the use of a high class of crystals, the light yield of the matrix will be somewhat lower than the total yield of the crystals entering the structure. This is due to the effect of superposition (mutual absorption) of light radiation, diodes located in close proximity.