The LED display has been popular in many big cities with its unique advantages relative to DLP and LCD splicing. It is widely used in building advertisements, subway stations, shopping malls and other fields. Undoubtedly, prompted the LED display so much attention, largely due to the high brightness display, but the purchase of LED display is really brightness better? As everyone knows, LED is a new type of lighting technology, is using a light emitting diode as the basis, compared with the traditional light sources, has the property of low energy consumption, high brightness therefore, the LED display is more and more popular. In addition, many businesses on the introduction of LED screen products to the user, often with "low consumption, high brightness as a publicity stunt, the user to instill a" brightness higher and better, more value "concept, really?
First of all, the LED screen is used in self luminous technology, LED lamp as the light source, will inevitably exist problems of brightness decay after a period of time. To achieve high brightness, a greater drive current is needed. However, in the current, the stability of LED beads can be reduced, and the faster decay. That is to say, simply pursuing high brightness is actually sacrificing the quality and life of the LED screen. If the cost is not yet recovered, the screen can no longer serve, resulting in great waste of resources.
In addition, the problem of light pollution in the global cities is now very serious, and many countries have even introduced laws and regulations to strictly control outdoor lighting and display brightness. LED screen display a high brightness as many technologies, almost become the outdoor display overlord, but once in the night, bright screen will become an invisible "pollution" in order to comply with national environmental standards, reduce the brightness at the same time, may cause extreme loss of gray, can not guarantee a good image display effect. In addition to the above two points, the cost rising factors also need to be paid attention to. Higher brightness is bound to cause the overall cost of the project to rise, and whether users really need such high brightness is also questionable, which may cause performance waste. Therefore, simply pursuing high brightness is extremely harmful. When we choose to buy LED display, don''t trust the seller''s publicity. We must consider the needs of the price and the application of the screen according to our needs, and don''t blindly pursue high brightness.