Yan Xiaoming: COB light source module will become the mainstream packaging mode in the future
LEDs are available in discrete and integrated packages. LED discrete devices are traditionally packaged and widely used in various related fields. After nearly 40 years of development, a series of mainstream product forms have been formed. The COB module of LED is a personalized package, which is mainly designed and produced for some individualized application products. At present, it has not formed a mainstream product form.
In order to enter the general lighting field, semiconductor lighting fixtures are the first major constraint. To reduce the cost of semiconductor lighting fixtures, you must first consider how to reduce the cost of LED packaging. The traditional LED lighting practices are: LED light source discrete devices → MCPCB light source module → LED lamps, mainly based on the practice of not using the applicable core light source components, 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 make the LED chip and MCPCB together into a COB light source module, and take the route of "COB light source module → LED light fixture", not only can save It saves time and can save the cost of device packaging.
In terms of cost, compared with discrete light source devices, COB light source modules can save device package cost, light engine module fabrication cost and secondary light distribution cost in lighting applications. In the same function of the lighting system, the overall cost can be reduced by about 30%, which is of great significance for the application of semiconductor lighting. In terms of performance, by reasonably designing and molding microlenses, the COB light source module can effectively avoid the disadvantages such as spot light and glare in the combination of discrete light source devices, and can also reduce the efficiency and life of the light source by adding appropriate red chip combinations. Under the premise, effectively improve the color rendering of the light source (currently can achieve more than 90). In application, the COB light source module can make the installation and production of the lighting fixture factory simpler and more convenient. 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. We can gradually form a series of mainstream COB light source modules according to the needs of different lighting applications, so as to mass production.
Traditional LED discrete light source devices are difficult to adapt to the requirements of performance, cost, application coordination and usage habits in the lighting field. The COB light source module will become the main packaging form for LED light source lighting applications in the future. Our semiconductor lighting industry should adjust its development ideas and make corresponding changes. Study the common characteristics of different lighting applications and system solutions, and form several (as few as possible) mainstream products of COB light source modules and promote them. In the upcoming changes, the relevant departments of the government will play an important role in guiding, organizing, coordinating and supporting. This is the significance of the 12th Five-Year Plan.
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