As a new generation of display media , full-color LED display with clear picture quality , high brightness, color uniformity and other advantages , has been widely used in various industries , such as: exhibition, ports, airports , railway stations, bus stations, major sports and exhibition venues, intelligent transportation , highways, banking, advertising , electricity, commerce, telecommunications , hospitals, taxation, banking , trading markets , public squares and other related systems and almost all industries. But LED display in use are vulnerable to a number of external factors, so that the display quality problems, following from the three aspects.
1 . Power supply
Power in an LED display system also affect the quality of an important part. As the power at different temperature conditions, the stability of its work , the output voltage and load capacity will be different, because it bears a logistical role , so it's support capabilities directly affect the quality of the screen . For performance and stability are different, different brands and specifications of the power equipment prices also have this very big difference. Recommendations can not just look at the performance of low-cost and quality rather than to select .
2 . Temperature
Theoretically ideal LED display working status kept at room temperature about 25 ℃ , because the display on the ambient temperature is very picky , outdoor LED display in the application of the ambient temperature is relatively complex, the highest summer temperature may be above 60 ℃ , the lowest temperature in winter may be below -20 ℃ .
At different temperatures , the red , green, and blue light brightness decay and fall are different, and in 25 ℃, the white balance is normal , but in 60 ℃ , the three colors of LED brightness decline , and its attenuation values are inconsistent , it will produce the entire screen brightness down and cast the phenomenon , the entire screen quality will drop.
For this reason , LED display are working in the design and process aspects of a number of improvements , can effectively control the temperature of the external environment of the display of the final result , as much as possible so that the LED display can display a variety of complicated conditions perfect .
3 . Cabinet Design
The LED display cabinet design is very important , on the one hand it is the role of circuit protection , the other is the safety purpose , as well as dust and waterproof . But more important is the thermal loop ventilation system design is good , with the start time and the outside temperature, the thermal drift components will increase , resulting in poor picture quality. Good ventilation design is essential indicators cabinet design .