On the Packaging of LED Full Color Screens.p2.5 outdoor LED module

　　LED comes in two packaging forms: discrete and integrated. LED discrete devices belong to traditional packaging and are widely used in various related fields. After more than forty years of development, they have formed a series of mainstream product forms. The chip integration module currently belongs to personalized packaging, mainly designed and produced for some individual application products, and has not yet formed a mainstream product form.

　　The traditional LED approach is not only labor-intensive and time-consuming, but also costly due to the lack of suitable core light source components.

　　In fact, we can combine the "LED light source discrete devices → MCPCB light source module" into one, directly transfer and mount semiconductor chips, integrate them on the MCPCB to form a COB light source module. The electrical connection between the chip and the substrate is achieved using lead stitching method, and covered with resin to ensure reliability. This not only saves labor and time, but also saves the cost of device packaging.

　　Compared with discrete LED devices, COB light source modules can save on the primary packaging cost, optical engine module manufacturing cost, and secondary light distribution cost of LEDs in applications. It is estimated that the actual cost of light sources can be reduced by about 30%. In terms of performance, through reasonable design and micro lens modeling, the COB light source module can effectively avoid the drawbacks of point light, glare, and other defects in the combination of discrete light source devices; By adding appropriate combinations of red chips, the color rendering of the light source can be effectively improved without significantly reducing its efficiency and lifespan. In terms of application, the COB light source module can make installation and production simpler and more convenient, effectively reducing application costs; In terms of production, the existing process technology and equipment can fully support the large-scale manufacturing of COB light source modules with high yield.

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