High brightness LED chip market structure and future trends
High brightness LEDs divided into infrared light system of GaAs and AlGaAs system, red, orange, yellow, green AlGaInP system, green and blue InGaN system, as well as of ultraviolet GaN and AlGaN system. InGaN Blu-ray optical efficiency of the system is high, combined with the quaternary system of red, yellow, light has begun to be widely used in lighting, backlight, display, traffic lights and other fields. UV LED has broad market prospect of great value, semiconductor UV light source in the field of lighting, sterilization, medical, printing, biochemical detection, high-density information storage and confidential communications. Infrared light LED peak wavelength from 850nm to 940nm infrared LED, widely used in remote controls, infrared LED demand continues to grow in areas such as drives, computer mouse, sensors, security devices, and display backlight driving force comes mainly from household appliances, security systems and wireless communications products.
Application of white light blue LED chip market, is the most important development direction, its blue chip plus YAG yellow phosphor to form white light source. At present, the international LED manufacturers has obvious advantages in high-power blue chip domestic LED chip enterprises mainly larger development in small and medium-power blue chip, but overcapacity caused due to excessive investment in previous years , leading to small and medium-sized the power blue chip market appeared more serious "price war". For blue LED chips, the main direction of development of silicon-based LED chips, high-voltage LED chip, flip the LED chip. For small and medium-power LED chip market, the mainstream market trends for the 0.2-0.5W market package including 2835,5630 and COB packaging. For other segments, such as the vertical structure of the chip, package can be used in directional lighting applications, such as a flashlight, miner's lamp, flash, spotlights and other lighting products.
