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Aug 02,2021| LED Knowledge
The LED grid screen is a grid-shaped LED screen composed of light bars, also called LED light bar screens. Mainly used in outdoor walls, glass curtain walls, building roofs and other fields. The service life of the transparent LED screen greatly exceeds that of the LED grid screen, with a lifespan of up to 50,000 hours. It is usually used in architectural media and interactive media scenes. It has very low power consumption and superior energy saving effect. This transparent LED glass is extremely thin, only ordinary glass The thickness is easy to install, the transmittance is 99%, the light transmittance is ≥80%, and there is no need for heat dissipation and strong weather resistance. It has the advantages of waterproof and anti-impact. So, what are the specific differences?
1. The use of lamp beads is different: LED light bar screens generally have a larger production area, so the dot pitch is relatively large, and the dot density is relatively small. However, it is necessary to use bright products in an outdoor environment, so in-line lights are generally used Beads to ensure the high-brightness characteristics of the screen. The LED transparent screen is installed indoors for outdoor viewing. The dot density is generally larger, the dot pitch is smaller, and the precision is higher, so it is generally made of SMD lamp beads.
2. The installation environment is different: the LED light bar screen is installed outside the screen, while the transparent LED display is installed in the indoor environment.
3. Different waterproof grades: because the LED light bar screen needs to be installed in a pure outdoor environment, it continues the high-proof grade characteristics of outdoor LED displays, and the general protection level needs to reach IP65; while the LED transparent screen is installed in an indoor environment, On the contrary, the requirements for the protection level are not high, generally at IP34, unless it is where the glass plank road is used, then nano-protection must be carried out to improve the protection level.
4. The weight is different: because the LED light bar screen needs to provide the protection level, it needs to use the glue water-proof process, which will increase the weight of the light bar itself. Because the light bar itself is heavy, it must be cold-rolled steel plate or die-cast aluminum To make the cabinet, this will cause the weight of the whole screen to be heavier. Generally, the weight of a single square is about 20KG. This process does not exist in the transparent LED screen. The light bar will be thinner. Some Shenzhen adopts a borderless design. , The screen is lighter, and the weight can be as light as 12KG/m2, or even lighter.