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Several important reasons affecting the price of LED display
LED advertising screens have developed rapidly in outdoor applications, and have gradually become the overlord of outdoor advertising. They have gradually appeared in the streets and dress up our cities. However, LED advertising screens also have a life span and cannot be used again without reasonable maintenance. So, what are the factors that determine the life of the LE advertising screen? How to treat the disease is particularly important, let's take a look at the factors that determine the life of the LED advertising screen.
1. The influence of production technology on products
How the production process of LED advertising screen products determines the fatigue resistance. The anti-fatigue performance of the modules produced by the inferior three-prevention treatment process is difficult to guarantee. When the temperature and humidity change, cracks will appear on the protective surface of the circuit board, resulting in reduced protection performance, so the production process of LED advertising screens is also the key to determining the life of the display factor. The production processes involved in the production of display screens are: component storage and pretreatment process, furnace welding process, three-proof treatment process, waterproof sealing process, etc. The effectiveness of the process is related to material selection and ratio, parameter control and operator quality. For the vast majority of LED display manufacturers, the accumulation of experience is very important. A factory with many years of experience will be more effective in controlling the production process. .
Second, the impact of LED light source device performance
The LED lamp bead device is the key to the advertising screen and is also a component related to life. For LED lamp beads, the main indicators are: attenuation characteristics, waterproof vapor penetration characteristics, and ultraviolet resistance. If LED advertising screen manufacturers fail to evaluate the performance of LED lamp beads, they will be applied to advertising screens, which will cause a large number of quality accidents and seriously affect the life of LED advertising screens.
Third, the impact of supporting parts
In addition to the LED lamp bead light source, the LED advertising screen also uses many other supporting components, such as circuit boards, plastic shells, switching power supplies, connectors, chassis, etc., any quality problems in any component may lead to The life of the screen is reduced. Therefore, the life of the advertising screen is determined by the life of the key component with short life. For example, the LED, switching power supply, and metal casing are all selected according to the 8-year standard, and the protection technology of the circuit board can only support its work for 3 years. After 3 years, it will be damaged due to corrosion, then we can only get a piece of 3 years Lifetime display.
Fourth, the influence of the working environment of the display screen
Due to different uses, the working conditions of advertising screens vary widely. From the environmental point of view, the indoor temperature difference is small, without rain and snow and ultraviolet rays; the outdoor temperature difference can reach 70 degrees, plus the sun and rain. The harsh environment will exacerbate the aging of the display, and the working environment is an important factor affecting the life of the display.
To a certain extent, the working environment of the LED advertising screen determines his life. The life time of LED is usually the time when the luminous intensity decays to 50% of the initial value. As a semiconductor material, LED is often said to have a life span of 100,000 hours, but that is an evaluation under ideal conditions. However, it cannot be achieved in actual use.
The life of the LED lamp bead determines the life of the LED advertising screen, not that the life of the LED lamp bead is equal to the life of the advertising screen. When the advertising screen is working, not every LED is working at full load every moment. When the display screen is playing a video program normally, the life of the LED advertising screen should be about 8 times the life of the LED lamp beads. When the LED Lamp beads can work longer under low current conditions.