2024-01-30

Analysis of ten trends of LED lighting technology development

1, the mainstream light source of lighting will be converted to LED

At present, the luminous efficiency of high-power LED commercial products has reached more than 150lm/W, and the life span has reached more than 30,000 hours, which makes the comprehensive performance of LED have surpassed other light sources.
At the same time, in addition to a lot of power, the price of LED lamps has been close to other light sources composed of lamps. Therefore, relatively speaking, LED already has a certain advantage. At the same time, the light efficiency of LED laboratory products has reached more than 300lm/W, and through reasonable heat dissipation design, the life of more than 50,000 hours is completely achievable. Logically speaking, other light sources have little room for improvement in light efficiency and life. Therefore, it can be expected that LED should become the mainstream light source in the lighting market.

2, LED device technology research will mainly focus on green LED efficiency improvement

The core device of semiconductor lighting technology - LED, the current red LED and blue LED have high photoelectric efficiency, but the photoelectric efficiency of green LED is very low. This limits the substantial application of LED spectral flexibility. Therefore, improving the light efficiency of green LED is the most important research topic of LED devices. However, the current GAN-based LED technology route has encountered great technical bottlenecks, both the existing technology route and the innovative technology route need to be studied.

3, Another study of LED device technology will be the study of narrow spectrum LED devices

The narrow spectral width of a single LED will help to truly realize the unlimited flexibility of the assembled LED spectrum. This will make the application prospect of LED more extensive. At the same time, one of the main applications of LED - LED display, if the spectral width of monochrome LED can be reduced, a larger color gamut space can be achieved. And that's a big area of application.

4, the white LED for general lighting will gradually shift to RGB mode

The light source used for ordinary lighting is presented in the form of white light or near white light. At present, the most comprehensive cost-effective, but also the mainstream white LED on the market, are blue LED plus YAG phosphor way to achieve. However, in theory, the RGB way has a higher light efficiency, and the RGB way will make the lamp can be dimmed, toned, and even adjusted color rendering index. Therefore, with the improvement of the light efficiency of green leds, it is believed that RGB mode (further extended to 3 or more monochrome LED color mixing) will become the mainstream white LED mode.

5, the characterization of the color rendering of the light source will be a long-term debate process, and the characterization in the form of spectrum may be the ultimate result

At present, the main parameter to characterize the color rendering of light source is the color rendering index. However, this is based on the limited spectral form of traditional light sources. The infinite flexibility of the LED spectrum will make this characterization problematic. It can be expected that if the LED achieves true spectral infinite flexibility, then any kind of single-parameter color rendering characterization will actually be flawed, and the ultimate representation should be the spectrum itself.

6, the application of light sources will include two basic aspects of visual applications and non-visual applications

The flexibility of LED in spectral assembly makes it possible to achieve a variety of visual and non-visual optimization applications through spectral assembly, such as agricultural lighting, medical lighting, and LED visible light communication. However, relatively speaking, LED applications in non-visual areas, there are many problems to be solved, including: what kind of lighting conditions are optimized, and the price of LED needs to be further reduced. The former is a scientific problem, while the latter is an industrialization problem.

7, lighting technology will be deeply integrated with information technology, the birth of smart lighting

LED is easy to control and itself is the characteristics of semiconductor devices, coupled with the relevance of lamps and human life, that is, there must be lamps where there are people, so lamps are a good physical carrier of information technology. Therefore, LED can be deeply integrated with information technology, and smart lighting will be born. This will be an important development direction of LED lighting technology in the future.

8, the appearance of the lamp will have great potential for innovation

At present, most of the LED lamps, including LED bulb lights, LED downlights, LED tubes, etc., are in order to cater to people's consumption habits in form, and this is not the best mechanical form of lamps remains to be studied. At the very least, there is a lot of room for innovation in the future mechanical form of LED lamps.

9, OLED will occupy an important position in the display field

In contrast to leds, which emit light in an approximate point light source, OLeds emit light in the form of area light sources. Therefore, after leds occupy the vast majority of the market for lighting applications (visual applications and non-visual applications) in the future, OLED still has certain advantages in the display field.

10, natural light lighting will be valued

In recent years, energy saving lighting, health lighting and ecological lighting have received great attention. And the use of sunlight to achieve lighting, naturally become the best choice. Therefore, I believe that with the advancement of technology, natural light lighting will receive more and more attention.

Due to the great flexibility of LED in the three Spaces of scale, spectrum and time, the development of LED in the future may give birth to many innovative applications and concepts, which is worth looking forward to. This is the development trend of lighting based on artificial light sources. At the same time, with the deepening of people's green ecological concept, natural light lighting will also achieve greater development.