Abstract: Advertising LED electronic display
screens have gradually appeared in the streets and alleys, all kinds of colors, dressing up our city, but advertising LED electronic display screens are also life-span, and can not be used without reasonable maintenance. Advertising LED electronic display screens have gradually appeared in the streets and alleys, all kinds of colors, dressing up our city, but advertising LED electronic display screens also have a life span and cannot be used without reasonable maintenance. So, what are the factors that determine the life of advertising led electronic display screens? How to prescribe the right medicine is particularly important. Let's take a look at the factors that determine the life of advertising LED electronic display screens. 1. The impact of LED light source device performance LED lamp bead device is the most critical part of the advertising screen and the most relevant part of its life. For LED lamp beads, the following indicators are mainly: attenuation characteristics, water vapor penetration characteristics, and UV resistance. If the LED electronic display manufacturer fails to evaluate the performance of the LED lamp beads, it will be applied to the advertising screen, which will cause a large number of quality accidents and seriously affect the life of the advertising LED electronic display. 2. The impact of supporting parts In addition to the LED lamp bead light source, advertising led electronic displays also use many other supporting parts, such as circuit boards, plastic shells, switching power supplies, connectors, and casings. Quality problems of components may cause the life of the screen to be reduced. Therefore, the life of the advertising screen is determined by the life of the key component with the shortest lifespan. For example, LEDs, switching power supplies, and metal casings are 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, then we can only get a piece for 3 years. Life-span display screen. 3. The influence of the production process on the product How does the production process of LED advertising screen products determine the anti-fatigue performance. It is difficult to guarantee the fatigue resistance of modules made by inferior three-proof processing technology. When the temperature and humidity changes, cracks will appear on the protective surface of the circuit board, resulting in a decrease in the protective performance. So the production process of advertising led electronic display is also a key factor in determining the life of the display. The production process involved in the display screen production includes: 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 the quality of the operators. For the major advertising LED electronic display manufacturers, the accumulation of experience is very important. A factory with many years of experience will control the production process. More effective. 4. The influence of the working environment of the display screen Due to different uses, the working conditions of the advertising screen are very different. From the environmental point of view, 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 an important factor affecting the life of the display. In a certain sense, the life of the LED determines the life of the advertising screen. The life of the 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 under actual conditions of use. The life of the LED lamp beads determines the life of the advertising screen. It does not mean that the life of the LED lamp beads is equal to the life of the advertising screen. When the advertising screen is working, not every LED is working at full capacity all the time. When the touch display screen is playing video programs normally, the life of the advertising LED electronic display should be about 8 times the life of the LED lamp beads. , When the LED lamp beads work under the condition of small current, the life can be longer.
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