The indoor LED display, currently the use of table stickers SMD display on the market has belongs to the mainstream and mature products. Among them, the small spacing is widely used in conference rooms, courts, public security bureaus, procuratorates, command centers, television stations, etc. At the same time Widely set in shopping malls, restaurants, schools, public construction and other places.
For the general indoor LED display, when delivering the product, it is a state of zero faults, but after a period of use, the phenomenon of bad lights and lighting will occur, and there is a situation where the lights occur in the accidental collision; in the installation of installation In the on -site environment, sometimes there will also be an unpredictable or unsatisfactory scene at the scene. For example, the temperature difference between the air -conditioning air outlet is close to the temperature difference, causing a large area of bad points, or the on -site environment is too humid, causing the screen body to be bad. Point rates increased day by day.
For the display problems caused by factors such as water vapor, dust, bumps, and bad light rates, as well as the display screen problems such as water vapor, dust, bumps, and bad lights, and the burden and cost of after -sales service are solved. To solve the problem.
Therefore, in order to effectively solve the problems mentioned, so as to produce so -called surface -covered solutions.
Such a solution is based on the current interior table sticker LED display. The device can directly combine the current SMT table sticker production line.
The process is to make the lamp board made by the (SMT) surface. After 72 hours of aging, the surface covers the surface of the lamp plate to form a so -called protective layer. The impact of humidity and water.
For LED display products with the general protection level of IP40 (IPXX, front X dustproof, and rear X waterproof), it has the protection level of the LED light surface, provides anti -bump effect, avoids the occurrence of lights, and reduces the whole screen bad point. The advantages of rates (PPM), such solutions have now correspond to market demand, mature production, and will not excessively increase the overall cost burden.
Not only that, the protection process on the back of the printing circuit board (PCB), maintain the three anti -paint protection techniques used in the past (see Figure 4). Generally, through the process of spraying methods, the protection level of the back of the circuit board can be improved. On the integrated circuit The surface (IC) is performed on the surface to form a protective layer to prevent the integrated circuit component of the driving circuit from failing.
For the LED display module used indoors, such a solution can effectively prevent problems such as the exposed electrical conduction pins and coverage. The effect of bumps, the current surface covering solutions on the market include GOB display, AOB display, etc.
