The difference between outdoor advertising machines and indoor advertising machines
Due to the need for outdoor protection, the frame loaded with the same size screen of outdoor advertising machines is larger, thicker, and much heavier than that of indoor advertising machines.
The appearance of indoor LCD advertising machines includes brushed metal and glass silk-screen printing, and the surface paint is relatively delicate, while outdoor advertising machines use thicker galvanized steel plates, generally 1.2 or 1.5 mm, coated with zinc as a primer, and then sprayed with special outdoor powder for corrosion protection. The surface is rougher than that of indoor machines.
Differences in display screens: The brightness of indoor LCD advertising machines is generally 350cd/㎡, the brightness of semi-outdoor LCD advertising machines is generally 700cd/㎡, and the brightness of full-outdoor LCD advertising machine screens is above 1000-1500cd/㎡. The highest brightness of 2500cd/㎡ is more common, and there are also higher brightness screens.
Difference in IP protection levels: IP (INGRESS PROTECTION) is a protection level system. The IP protection level is composed of two numbers. The first number indicates the level of dust and foreign object intrusion prevention of the appliance (the foreign objects here include tools, human fingers, etc., which must not touch the live parts of the appliance to avoid electric shock).
Differences in environmental adaptability of temperature and humidity: Indoor advertising machines are not as adaptable as outdoor advertising machines in terms of temperature or humidity. Outdoor LCD advertising machines are equipped with special intelligent industrial temperature control systems, which can adapt to normal operation in extreme temperatures of -40°C-55°C. In addition, they can adapt to normal operation in humid and dry environments of 5%-90%RH.
Indoor advertising machines are mainly used in relatively stable indoor environments. Their functions are not as powerful as those of outdoor advertising machines. The brightness is only at the normal level of 300-400, and no special protective treatment is required.
There are several requirements for outdoor advertising machines. First, they must be waterproof, dustproof, anti-theft, lightning-proof, anti-corrosion, and anti-biological. Second, the brightness must be high enough, generally 1500-3000 brightness, and can be clearly seen in the sun. Third, they must be able to operate normally in harsh environments (such as high temperature, low temperature, strong wind, etc.). Fourth, outdoor LCD advertising machines have high power and require a stable power supply. Therefore, there is a big difference in the structural design and assembly of the whole machine.
Indoor advertising machines have a relatively low cost because they are used in a stable environment and do not require special requirements. Outdoor advertising machines, on the other hand, are required to be able to work normally in harsh environments, so they have very high protection levels and requirements, and their costs are also very high, even several times the price of indoor advertising machines of the same size.
