The development of high-power LEDs has always been the main goal of lighting applications. Although there is still a certain threshold for LEDs entering the general lighting field, the landscape lighting, LCD backlight applications, and the rapid development of functional lighting applications such as miner's lamps and street lamps are large. Power white LEDs are still maintaining a very fast development rate in terms of improvement of technical indicators and expansion of application scales. It is expected that the development speed of high-power LEDs will be maintained at more than 50% in the next few years.
With the expansion of application areas and market size, the development characteristics and trends of high-power LEDs are gradually changing, showing some new industrial characteristics:
1, the mainstream product LED prices gradually reduce
At present, the price of Cree's 1W white LED product with luminous flux of 70-90lm is basically maintained at about 17 yuan, the price of the same type of Philips Lumileds product is about 19-21 yuan, and that of Taiwan's 1W white LED (light flux is 70-80lm). From 10 yuan to 15 yuan; the mainland adopts imported chip package high-power LED prices in line with Taiwan's products, domestic production of high-power LED (50 ~ 60lm) prices are basically around 5.50 yuan.
The current ability to supply white LED power devices in large quantities is still limited to manufacturers such as Ruifeng Optoelectronics, National Star Optoelectronics, Guangzhou Hongli, Taiwan Everlight, Lite-On, etc., accompanied by the rapid growth of power white LED applications and their constant light efficiency. It is estimated that the price of its single LED will gradually decrease.
2. Cost and heat dissipation are still the biggest obstacles for LEDs to replace traditional lighting
Lighting is the most attractive application area for LEDs. The cost issue is crucial for LEDs to replace traditional lighting. Although the LED's selling price is not as high as the traditional lamp's lifetime, and it can save the replacement and maintenance costs for later use, the initial cost is often directly constrained by the purchase budget. Philips believes that the major bottleneck affecting current LED applications is that the lumen cost is 10 times higher than traditional lighting sources. Therefore, the light extraction efficiency should be increased to 150lm/W, and the driving current should be increased from 700mA to 2A. At the same time, the cost of the die and package must also be reduced by half, so that it can be widely applied in the lighting field.
According to Guan Baiyu, deputy inspector of the Electronic Information Department of the Ministry of Industry and Information Technology, the LED package integrates both light and heat in one device, and the heat has the greatest impact on LED devices. If the lighting is always achieved at high temperatures, it will Greatly affect the life of lighting devices or lamps, so it poses a severe challenge to LED lighting in terms of package structure.
3, high-power LED market has a wide domestic use
At present, the landscape lighting market is the largest application market for high-power LED lighting, with a share of approximately 43%. Its new round of rapid growth will inevitably bring new impetus to the high-power LED lighting industry. In addition, through the active improvement of materials, processes, and packaging technologies by high-power LED technology leaders worldwide, the luminous efficiency and performance of high-power LEDs have been rapidly improved. High-power LEDs have begun to move toward indoor and outdoor general lighting, automotive interior and exterior lighting, and searchlights. And other new markets. The high-power LED lighting industry will achieve leap-forward development within the next 3 to 5 years, subverting the traditional lighting industry.
With the expansion of application areas and market size, the development characteristics and trends of high-power LEDs are gradually changing, showing some new industrial characteristics:
1, the mainstream product LED prices gradually reduce
At present, the price of Cree's 1W white LED product with luminous flux of 70-90lm is basically maintained at about 17 yuan, the price of the same type of Philips Lumileds product is about 19-21 yuan, and that of Taiwan's 1W white LED (light flux is 70-80lm). From 10 yuan to 15 yuan; the mainland adopts imported chip package high-power LED prices in line with Taiwan's products, domestic production of high-power LED (50 ~ 60lm) prices are basically around 5.50 yuan.
The current ability to supply white LED power devices in large quantities is still limited to manufacturers such as Ruifeng Optoelectronics, National Star Optoelectronics, Guangzhou Hongli, Taiwan Everlight, Lite-On, etc., accompanied by the rapid growth of power white LED applications and their constant light efficiency. It is estimated that the price of its single LED will gradually decrease.
2. Cost and heat dissipation are still the biggest obstacles for LEDs to replace traditional lighting
Lighting is the most attractive application area for LEDs. The cost issue is crucial for LEDs to replace traditional lighting. Although the LED's selling price is not as high as the traditional lamp's lifetime, and it can save the replacement and maintenance costs for later use, the initial cost is often directly constrained by the purchase budget. Philips believes that the major bottleneck affecting current LED applications is that the lumen cost is 10 times higher than traditional lighting sources. Therefore, the light extraction efficiency should be increased to 150lm/W, and the driving current should be increased from 700mA to 2A. At the same time, the cost of the die and package must also be reduced by half, so that it can be widely applied in the lighting field.
According to Guan Baiyu, deputy inspector of the Electronic Information Department of the Ministry of Industry and Information Technology, the LED package integrates both light and heat in one device, and the heat has the greatest impact on LED devices. If the lighting is always achieved at high temperatures, it will Greatly affect the life of lighting devices or lamps, so it poses a severe challenge to LED lighting in terms of package structure.
3, high-power LED market has a wide domestic use
At present, the landscape lighting market is the largest application market for high-power LED lighting, with a share of approximately 43%. Its new round of rapid growth will inevitably bring new impetus to the high-power LED lighting industry. In addition, through the active improvement of materials, processes, and packaging technologies by high-power LED technology leaders worldwide, the luminous efficiency and performance of high-power LEDs have been rapidly improved. High-power LEDs have begun to move toward indoor and outdoor general lighting, automotive interior and exterior lighting, and searchlights. And other new markets. The high-power LED lighting industry will achieve leap-forward development within the next 3 to 5 years, subverting the traditional lighting industry.