With the advancement of the global LED industry, the market’s demand for LED products has shifted from initial functional requirements to light quality and diversification. COB technology has emerged and is increasingly valued in commercial lighting, automotive lighting, intelligent lighting, new displays, and other fields.
The technological advantages of COB packaging products are obvious, and their technical difficulties and pain points cannot be ignored. At present, what are the pain points and difficulties in the field of COB light sources that are hindering the development of COB products? What suggestions have users put forward for COB light source enterprises?

（1） Pain points and difficulties of COB light source
According to the research results on the pain points and difficulties of COB light sources, respondents believe that light color control is currently the biggest pain point and difficulty of COB light sources, with 56.41% of respondents choosing it; The problem of inconsistent optoelectronic parameters ranks second, accounting for 52.01%. Short lifespan and high failure rate are the other two prominent pain points, accounting for 41.39% and 41.03% respectively.
The respondents believe that the current lifespan of COB light sources is relatively short, and there is a high failure rate during use, which raises concerns about the reliability of COB light sources.
In summary, the current COB light source has pain points and difficulties such as light color control, inconsistent photoelectric parameters, high failure rate, and short lifespan, which need further improvement and optimization.
In response to these issues, COB light source manufacturers should strengthen technology research and quality control, and continuously improve the performance of COB through product design and material optimization; Continuously improving the stability and reliability of COB products from process innovation to light color control. At the same time, better compatibility with market applications and meeting the diversified requirements of different application scenarios are necessary for COB light source products to achieve better development.

（2） The Development Direction of COB Light Source
Research has found that “cost-effectiveness” is the most frequently mentioned suggestion by respondents. For most consumers, price is an important factor in purchasing decisions.
COB light source manufacturers can reduce costs and improve efficiency by improving production yield, automating production, and continuously enhancing the cost-effectiveness of COB products. In addition, users have also raised demands for “intelligence” and “diversification” of COB light source enterprises.

1 ► Intelligence
77.44% of the surveyed companies stated that their lighting products are equipped with intelligent control functions. It can be seen that the potential commercial value brought by intelligent lighting is increasingly recognized by lighting companies, and they are beginning to seize the opportunity of intelligent lighting.
Under the continuous development of intelligent technology and the increasing demand for smart homes, COB light sources are gradually achieving intelligence. In intelligent lighting systems, COB light sources can provide precise dimming and color adjustment functions, adapt to different scenes and needs, and have a wider application space.

2 ► Light Health
Light health, also known as “healthy lighting”, is a new trend in the lighting industry and an important direction for upgrading the traditional lighting industry. People are increasingly pursuing lighting that is more comfortable, healthier, and closer to natural light, in order to make their bodies and minds healthier. With technological breakthroughs, COB light sources can better adjust color temperature and spectrum to better meet the biological rhythms and visual needs of the human body. Guided by light health, COB light sources can automatically adjust lighting modes based on environmental parameters and user behavior, providing a lighting experience that is more in line with human health.

3 ► Diversification
More and more manufacturers are expanding horizontally and vertically, developing COB light source solutions suitable for different application scenarios through product design and technological innovation. As one of the most popular COB packaging brands in China, Guangsheng Semiconductor is committed to creating a wide range of high-quality COB light sources. Currently, it can supply a full range of intelligent lighting COB light sources, covering various application scenarios such as high-end commercial lighting and smart home lighting, which can meet various needs such as intelligent lighting, human factors lighting, and health lighting.
From the current market situation of COB development, the primary task for COB light source manufacturers to achieve technological breakthroughs is to solve the pain points and difficulties in the production process and provide users with a better product experience. Secondly, it is important to grasp the new market demands and inject new momentum into industrial development.
Although COB packaging technology has some drawbacks, its advantages make its application in the electronic product manufacturing industry increasingly widespread. Especially in the manufacturing of modern electronic devices with small volume, light weight, and high performance, COB packaging technology plays an important role.
For safety regulations, engineers usually consider this issue during the design phase, optimizing substrate design and scheme design to meet relevant national safety standards.
Overall, COB packaging is a highly effective packaging technology that provides solutions for miniaturization, high performance, and high reliability. However, it also requires high technical requirements and consideration of environmental conditions. Therefore, when choosing to use COB packaging technology, it is necessary to weigh its advantages and disadvantages based on the specific requirements and usage environment of the product.
In the future, with the continuous development of packaging technology, COB packaging may become more perfect, its advantages will be further utilized, and its disadvantages may also be improved. For example, high-performance silicone can effectively solve the problems of high relative temperature and large light attenuation in COB packaging. More precise packaging equipment and advanced packaging technology may also reduce the manufacturing cost of COB packaging and improve its production efficiency. Therefore, COB packaging technology still has broad application prospects in the future electronic manufacturing industry.