LEDs are available in discrete and integrated packages. LED discrete devices are traditionally packaged and widely used in various related fields. After more than 40 years of development, a series of mainstream product forms have been formed. The chip-integrated COB module is currently in a personalized package, designed and produced mainly for some case-based applications, and needs to form a large-scale mainstream product form.
The traditional LED luminaire practice is: LED light source discrete device → MCPCB light source module → LED luminaire, mainly because there is no ready-made core light source component, which is not only time-consuming, but also costly. In fact, we can combine the "LED light source discrete device → MCPCB light source module" into one, directly integrate the LED chip on the MCPCB (or other substrate) to make a COB light source module, and go "COB → light source module → LED light fixture The route 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 LED's primary package cost, light engine module manufacturing cost and secondary light distribution cost in lighting applications. In the lighting system with the same function, the actual measurement can reduce the cost of the light source by about 30%, which is of great significance for the application and promotion of semiconductor lighting.
In terms of performance, through reasonable design and microlens molding, COB light source module can effectively avoid the disadvantages such as spot light and glare in the combination of discrete light source devices; it can also reduce the light source efficiency by adding appropriate red chip combination. Under the premise of life, the color rendering of the light source is effectively improved (more than 90 can be achieved at present).
In application, the COB light source module can make the installation and production of the lighting fixture factory simpler and more convenient, and effectively reduce the application cost.
In production, existing process technologies and equipment can fully support the high-volume production of high-yield COB light source modules. With the expansion of the LED lighting market, the demand for lamps is growing rapidly, and it is possible to gradually form a series of mainstream products of COB light source modules according to the needs of different lighting applications for mass production.
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