Big led display are popular in major cities and are widely used in commercial streets, train stations, airports, passenger stations, subways, shopping malls, supermarkets, hospitals, hotels, banks, securities markets, auction houses, shopping centers, media centers, Government squares, leisure squares, cultural squares, prosperous business centers, advertising information boards and other places. Undoubtedly, the full color led wall has received such attention, largely because of the high brightness of the display, but is the higher the brightness of the big led display the better?
As we all know, LED as a new type of light-emitting technology is based on light-emitting diodes. Compared with traditional light sources, it has the characteristics of low energy consumption and high brightness, so big led display are becoming more and more popular. Therefore, when many manufacturers introduce large-screen products to users, they often use "low energy consumption and high brightness" as a publicity gimmick, instilling a concept of "the higher the brightness, the better, the more value", that is really Is the brightness of the full color led wall as bright as possible?
First of all, the full color led wall uses self-luminous technology. As a light source, the LED lamp bead will inevitably have the problem of brightness attenuation after a period of use. To achieve high brightness, a larger drive current is required. However, under strong current, the stability of the LED lamp beads will be reduced, and the attenuation will be faster. In other words, simply pursuing high brightness is actually at the expense of the image quality and lifespan of the LED video display. It is possible that the investment cost has not been recovered, and the display screen can no longer be served, resulting in a great waste of resources.
In addition, the problem of light pollution in cities around the world is already very serious. Many countries have even issued laws and regulations to strictly control the brightness of outdoor lighting and display screens. The outdoor led display screen, as one of the higher brightness in many display technologies, has almost become the overlord of outdoor display, but once at night, the bright screen will become an invisible "pollution" and in order to meet the national environmental protection standards, reduce At the same time of brightness, it may cause extreme loss of grayscale, which cannot guarantee a good picture display effect.
In addition to the above two points, the cost increase factor also needs attention. Higher brightness is bound to cause the overall cost of the project to rise, and whether users really need such high brightness is also debatable, and it may cause waste of performance.
Therefore, simply pursuing high brightness is extremely harmful. When we buy a large screen, don't believe the seller's propaganda. According to our own needs, comprehensively consider the cost performance and large screen application requirements, and don't blindly pursue the brightness of the big led display.