In the market for indoor LED displays, the most commonly used and mature product is the SMD display that uses table stickers. This type of display has a small spacing and is highly popular in various settings such as conference rooms, command centers, television stations, public security bureaus, procuratorates, and other places. Additionally, it is also widely installed in places like shopping malls, schools, restaurants, and public constructions as well.
Upon delivery, the indoor LED display is typically free from faults. However, with time and usage, the display may exhibit bad lighting or faulty lights. Additionally, the accidental collision of the display may also cause the lights to malfunction. In some cases, unforeseeable or unsatisfactory conditions may arise during the installation process, leading to suboptimal performance. For example, the temperature difference between the air-conditioning outlet and the display may create a large number of bad points, or a humid installation environment may lead to an increase in the number of bad points over time. Despite these challenges, measures can be taken to mitigate any negative effects and ensure optimal display performance.
One of the common issues faced by users is display problems. These can be caused by several factors such as water vapor, dust, bumps, and poor light rates. The display screen is also prone to issues arising from water vapor, dust, bumps, and poor lighting. These problems can result in a significant burden and cost for after-sales service. However, there are solutions available to address these issues effectively.
To address the aforementioned issues and achieve surface-covered solutions, it is necessary to take action based on the existing information. This will involve a systematic approach to identify and resolve problems, rather than relying on superficial or temporary fixes. By doing so, we can ensure that the solutions we implement are comprehensive and sustainable, and that they address the root causes of the problem rather than just treating the symptoms. Ultimately, this will lead to long-term success and positive outcomes for all parties involved.
The proposed solution is centered around the existing interior table sticker LED display. This device can seamlessly integrate with the ongoing production process of SMT table stickers. A visual representation of this integration is illustrated in Figure 2. By effectively combining these technologies, we can create a solution that optimizes the current production line and enhances its performance.
The lamp board is manufactured using (SMT) surface technology. A protective layer is formed by covering the surface of the lamp plate after a 72-hour aging process. This layer shields the surface from the effects of humidity and water, as demonstrated in Figure 3.
LED display products that come with the standard protection level of IP40 (IPXX where X indicates either dustproof or waterproof) provide ample safeguarding of the LED surface. Implementation of this protection level offers an anti-bump effect, curtails the likelihood of light occurrence and lowers the chances of the entire screen displaying bad points. This solution is capable of meeting market demands and has attained maturity in production. Moreover, its implementation does not bring about an excessive increase in overall costs burden.
In addition, the back of the printing circuit board (PCB) benefits from a protection process that incorporates the use of three anti-paint protection techniques. This process includes spraying methods that enhance the level of protection on the circuit board. The integrated circuit (IC) surface is also coated to form a protective layer, aimed at preventing failure of the driving circuit's integrated circuit component. These methods have been utilized in the past and are still relevant today for ensuring that the PCB is adequately protected.
Indoor LED display modules require protection from exposed electrical conduction pins and impact damage. Various surface covering solutions are available in the market to prevent these issues, such as GOB display or AOB display. These solutions effectively reduce the risk of damage due to bumps or knocks when compared to a general SMD display.