The trend of LED lighting package
LED lighting applications are undergoing a transition from phone , the display , TV backlight , auto headlights, professional lighting toward the direction of general illumination , and in the near future , intelligent lighting applications will be the emerging application markets , there are many reasons : ( 1 ) the ban of using incandescent is around the world ; ( 2 ) sustained energy conservation needs ; ( 3 ) demand for environmentally friendly and low-carbon life ; ( 4 ) demand for only environment-friendly buildings ; ( 5 ) a variety of favorable government policies are introduced ; ( 6 ) the introduction of a variety of criteria , such as the energy Star standards .
LED package is one of the largest components of the cost of lighting , accounting for more than 35% of the total cost. LED packaging products, including packaging materials and manufacturing costs two parts , both of which have exceeded the price of the chip, and they have becomethe largest part of the total package cost of proportion.
Future high- finger chord commercial lighting and wide color gamut backlight LED applications will become the next generation hotspots of LED , reducing efficiency between gap cool white and warm white LED light, which is a technical problem . Overdrive and high current density electric light, phosphor technology to achieve high- volume production , and linear IC -driven high-voltage LED light engine module + will become the trend of the industry research.
Future trends in the seven LED packages : ( a ) flip- chip bonding , which causes the phosphor coating further simplifying the wafer level ; ( 2 ) the chip -scale package , the package technology will realize that the chip size will not exceed 1.2 times the scale and achieve free support, free gold package , compact and help reduce costs ; ( 3 ) integration Pack light engine technology , has a simple structure , the AC drive , better reliability , eliminating or reducing the external PCB structure, which will save more space and have better blood performance , relative to the switch-mode design, with lower electromagnetic interference ; (4) LED filament achieve full 360 ° Zhoufa Guang simulate incandescent bulbs ; ( 5 ) Refine the light efficiency difference between warm white and cool white ; ( 6 ) high and wide color gamut for commercial lighting , high color rendering index colors look vibrant , red is more vivid , compared with TV and Monitor, wide color gamut provides a rich color experience ; (7) Quantun Dots QD wavelength converter , a quantum dot diameter of 3-7nm, to achieve full spectrum of all colors by adjusting the particle size of the alert , the peak emission wavelength can be adjusted to + /-1nm, reduce light scattering , high Ryoko efficiency greater than 90% ;