There are internal and external factors that affect the life of LED full-color display screen. The internal factors include the performance of peripheral components, the performance of LED light-emitting devices, the anti fatigue performance of products; the internal factors include the working environment of LED display screen, etc. In addition to LED light emitting devices, LED display screen also uses many other peripheral components, including circuit board, plastic shell, switching power supply, connector, case, etc. any problem of any part may lead to the decrease of display life. Therefore, the longest life of the display screen is determined by the life of the key component with the shortest life. For example, led, switching power supply and metal shell are selected according to the 8-year standard, while the protective process performance of the circuit board can only support its work for 3 years. After 3 years, it will be damaged due to corrosion, so we can only get a 3-year-old display screen.
2. The influence of LED light-emitting device performance
LED light-emitting device is the most critical and life-related component of display screen. For LED, the main indicators are as follows: attenuation characteristics, water vapor permeability characteristics, anti ultraviolet performance. If the LED display manufacturer fails to evaluate the performance of LED devices, it will be applied to the display screen, which will lead to a large number of quality accidents and seriously affect the life of LED display screen. [large electronic display screen]
3. The anti fatigue performance of the product affects the fatigue resistance of the product, which depends on the production process. It is difficult to guarantee the anti fatigue performance of the module produced by the poor three prevention treatment process. When the temperature and humidity change, cracks will appear on the protection surface of the circuit board, leading to the decline of the protection performance.
therefore, the production process of LED display screen is also the key factor to determine the display life. The production process involved in the production of display screen includes: storage and pretreatment process of components, furnace welding process, three prevention treatment process, waterproof sealing process, etc. The effectiveness of the process is related to material selection and proportioning, parameter control and operator quality. For most 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.
4. The influence of working environment
the working conditions of display screen vary greatly due to different uses. From the environmental point of view, the indoor temperature difference is small, without the influence of rain, snow and ultraviolet rays; the maximum temperature difference outside can reach 70 degrees, plus wind, sun and rain. Harsh environment will aggravate the aging of display screen, and the working environment is an important factor affecting the life of display screen. [LED display manufacturer] the service life of
we say that led life determines the life of the display screen, but it does not mean that the LED life is equal to the display life. Because the display screen is not working at full load all the time, the life of the display screen should be 6-10 times longer than that of the LED under the normal condition of playing video programs. When the LED works under the condition of small current, the life of the LED can be longer. Therefore, the lifetime of the display screen with this brand of LED can reach about 50000 hours. [Shenzhen LED display price]