Is it true that the life of a transparent LED display is 100,000 hours? Like other electronic products, LED transparent screens have a service life. Although the theoretical life of LED is 100,000 hours, it can work for more than 11 years based on 24 hours a day and 365 days a year, but the actual situation is very different from the theoretical data. According to statistics, the life of LED transparent screens on the market is generally 4 to 8 years, and LED transparent screens that can be used for more than 8 years are already very good. Therefore, the life of an LED transparent screen of 100,000 hours is ideal, and 50,000 hours is already good in actual situations. The factors that affect the life of an LED transparent screen include internal and external factors. The internal factors include the performance of peripheral components, the performance of LED light-emitting devices, and the anti-fatigue performance of the product; the internal factors include the working environment of the LED transparent screen, etc. 1. Influence of peripheral components In addition to LED light-emitting devices, LED transparent screens also use many other peripheral components, including circuit boards, plastic shells, switching power supplies, connectors, casings, etc. Any problem with any component may reduce the life of the transparent screen. Therefore, the longest life of a transparent display is determined by the life of the shortest-lived key component. For example, LED, switching power supply, and metal shell are all selected according to the 8-year standard, while the protection 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 transparent screen with a life of 3 years. 2. The fatigue resistance of the product affects the fatigue resistance of the LED transparent screen product, which depends on the production process. The fatigue resistance of the module produced by the poor 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 protection performance. Therefore, the production process of the LED transparent screen is also a key factor in determining the life of the transparent screen. The production processes involved in the production of transparent screens 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 material selection and ratio, parameter control and operator quality. For most LED transparent screen manufacturers, the accumulation of experience is very important. A factory with many years of experience will be more effective in controlling the production process. 3. The influence of the performance of LED light-emitting devices LED lamp beads are the most critical and life-related components of transparent screens. For LED lamp beads, the main indicators are: attenuation characteristics, water vapor penetration characteristics, and UV resistance. If the LED transparent screen manufacturer fails to evaluate the performance of LED lamp beads, it will be applied to the transparent screen, which will lead to a large number of quality accidents and seriously affect the life of the LED transparent screen.
This content is originally created by EEWORLD forum user jucaiyuan008. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source 4. The impact of the working environment Due to different uses, the working conditions of the transparent screen vary greatly. From the environmental point of view, the temperature difference indoors is small, without rain, snow and ultraviolet rays; the temperature difference outdoors can reach up to 70 degrees, plus wind, sun and rain. Harsh environment will aggravate the aging of the transparent screen, and the working environment is an important factor affecting the life of the transparent screen. The life of the LED transparent screen is determined by many factors, but the end of life caused by many factors can be continuously extended by replacing parts (such as switching power supplies). LEDs cannot be replaced in large quantities. Therefore, once the life of LEDs ends, it means the end of the life of transparent screens. In a certain sense, the life of LEDs determines the life of transparent screens. We say that the life of LED lamp beads determines the life of transparent screens, but it does not mean that the life of LED lamp beads is equal to the life of transparent display screens. Since not every LED on the transparent display screen is working at full load all the time, the life of the transparent screen should be 6 to 10 times that of the LED when the transparent screen is playing video programs normally. When the LED works at a low current, the life can be longer. Therefore, the transparent screen using this brand of LED lamp beads can have a life of about 50,000 hours. How to make the transparent LED display screen have a longer life? Starting from the procurement of raw materials to the standardization and normalization of the production and installation process, it will have a great impact on the service life of LED display screens. The brand of electronic components such as lamp beads and ICs, and the quality of switching power supplies are all direct factors affecting the life of LED large screens. When planning the project, we should specify reliable quality LED lamp beads, good reputation switching power supplies, and specific brands and models of other raw materials. During the production process, attention should be paid to anti-static measures, such as wearing anti-static rings, anti-static clothes, and choosing dust-free workshops and production lines to minimize the failure rate. Before leaving the factory, the aging time should be guaranteed as much as possible to achieve a 100% factory qualified rate. During transportation, the product should be well packaged, and fragile should be marked on the outside of the package. If it is shipped by sea, anti-hydrochloric acid corrosion measures should be taken. In addition, daily maintenance of LED transparent screens is also very important. Clean the dust accumulated on the screen regularly to avoid affecting the heat dissipation function. When playing advertising content, try not to be in full white, full green and other screens for a long time to avoid current amplification, cable heating and short circuit and other faults. When playing festivals at night, the screen brightness can be adjusted according to the ambient brightness, which not only saves energy but also extends the service life of the LED display.
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