The prospect of LED lights
As the issue of global greenhouse gas emissions is becoming more and more serious and approaching the critical point of self-regulation of the earth, countries have introduced relevant policies, and governments around the world, including China, must implement energy-saving emission reduction (CO2) without delay. LED lamps are currently the most energy-efficient. Green environmental protection electric light source has naturally become the main choice for lighting energy saving and emission reduction. With the gradual reduction of the cost and price of LED lamps, the popularity of the LED lamps is also accelerating. Before 2020, the market share of LED lamps will exceed 50%.
Reduce the cost of LED lights
LED chips occupy a major part of the cost of LED lamps, so the main way to reduce the cost of LEDs is to reduce the cost of LED chips.
The key to the development of LED chip technology lies in the substrate material and epitaxial growth technology. The base material is developed from traditional sapphire materials, silicon and silicon carbide to new materials such as zinc oxide and gallium nitride. In just a few years, LEDs have achieved great breakthroughs in light efficiency with a series of technological improvements including chip structure, surface roughening and multi-quantum well structure design.
The cost of silicon substrate is very low, and the technology is constantly improving. However, the current luminous efficiency is still not satisfactory. If this speed of development is maintained, once the higher level is reached, the silicon substrate becomes the most important technical solution and the enterprise will also become an inevitable choice. Gain huge economic returns.
Improve the light efficiency of LED lights
Improving light efficiency can also start with increasing the proportion of effective light. The thin film chip technology can reduce the light output loss of each side. With the reflective surface at the bottom, more than 97% of the light is output from the front side, so that most of the light obtained by the electric energy conversion is effective light, which not only significantly improves the light efficiency of the LED, It also creates superior convenience for lens design. Thin film chip technology is the core technology in the production of super bright LED chips.
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