LED display what factors affect service life ?
With the continuous development of economy and society, LED display has become a very common electronic product in our daily life. Now all kinds of LED displays can be seen everywhere in the streets and alleys. They are either at the front of the store, in the shopping mall, or between the buildings. No matter where they are, the LED displays are all dressed up in our city. landscape.
As an electronic product, the LED display also has a lifespan. Without reasonable maintenance, the product may malfunction. If it is not taken care of for a long time, the product cannot even be used anymore. So, what factors will affect the service life of the LED display? Below I will tell you in detail.
1. The influence of LED light source device performance
The LED lamp bead device is the most critical and life-related component of the LED display. For LED lamp beads, the following indicators are mainly: attenuation characteristics, waterproof and vapor permeability characteristics, and anti-ultraviolet performance. If the LED display manufacturer fails to evaluate the performance of the LED lamp bead, it will be applied to the display, which will lead to a large number of quality accidents, which will seriously affect the service life of the LED display.
2. the impact of supporting parts
In addition to the LED lamp bead light source, the LED display also uses many other supporting components, such as circuit boards, plastic housings, switching power supplies, connectors, chassis, etc., any quality problem of any component may lead to The lifespan of the LED display is reduced. Therefore, the life of the LED display is determined by the life of the key component with the shortest life. For example, LEDs, switching power supplies, and metal casings are all selected according to the 8-year standard, and 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 rust, so we can only get a piece for 3 years. Long life LED display.
3. The influence of the production process on the product
How the production process of LED display products determines the fatigue resistance. The anti-fatigue performance of the modules produced by the inferior three-proof 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 a decrease in the protective performance. Therefore, the production process of the LED display is also a key factor in determining the life of the display. The production processes involved in the production of the display screen include: component storage and pretreatment process, furnace welding process, three-proof treatment process, waterproof sealing process, etc. The effectiveness of the process is related to the selection and ratio of materials, parameter control and the quality of operators. For most LED display manufacturers, the accumulation of experience is very important. A factory with many years of experience will have more control over the production process. Science works.
4. the impact of LED display working environment
Due to different uses, the working conditions of advertising screens vary widely. In terms of environment, the indoor temperature difference is small, without the influence of rain, snow and ultraviolet rays; the outdoor temperature difference can reach up to 70 degrees, plus wind, sun and rain. The harsh environment will aggravate the aging of the display, and the working environment is also an important factor affecting the life of the LED display.
All in all, the life of the LED determines the life of the entire LED display. The life of an LED is usually defined as the time when the luminous intensity decays to 50% of the initial value. As a semiconductor material, LED is often said to have a lifespan of 100,000 hours, but that is an evaluation under ideal conditions, and it cannot be achieved in actual use.