These developments thus allow LED technology an increasingly wide field of application. A development stimulated by an ever-increasing demand both at the industrial level and by the needs of consumers.
Indeed, the use of these components is constantly evolving. They are used in signs, lighting, screens, especially giant screens, or even shows. They are also increasingly used in public lighting and integrated into many everyday objects.
Increasing use, in particular thanks to one of its major advantages. That of having low energy consumption, with a low CO2 emission rate, while offering high luminosity.
Another important feature that works in favor of LEDs is that they are dimmable and have a long lifespan. Indeed, they can be fully configurable in terms of light intensity and color. They thus make it possible to generate luminous atmospheres, diffuse animations, or adapt to the surrounding constraints.
Case of its use in screens
As mentioned above, LEDs are used in the production of screens. They intervene in different ways. First of all, they are found as a backlighting solution in LED monitors or televisions. Moreover, it is the main technology of LED screens or giant screens.
Indeed, the majority of SMD Screens used today are composed of those of the SMD type which plays the role of pixels. By controlling the brightness and colorimetry of all the LEDs that make up the screen, it is thus possible to broadcast videos. Each of them will be a component of the final image.
The use of LEDs in giant screens gives them considerable advantages. First of all, a high luminosity allows them to be used outdoors and to be visible in direct sunlight. Then unlimited modularity, they are not dependent on the panel, unlike the LCD. They can be of any size and shape.
Finally, they make it possible to reduce the energy consumption of the screens. Indeed, an SMD screen consumes less than an LCD solution (even LED) and remains less energy-intensive than other advertising solutions (TV, web, or mobile).
Historical
Invented in 1927, it was not until 1962 that Nick Holonyak Jr. managed to produce an LED capable of emitting a visible light spectrum. Since then, this technology has continued to evolve. Originally, they were monochromatic, first red, green, yellow, and then blue.
In the 1990s, the Japanese, Shuji Nakamura, and Takashi Mukai developed high luminosity blue diodes, which were then adapted into white LEDs. The colors produced by these diodes then diversified and then became composite.
They can thus produce almost the entire spectrum of colors. The latest innovations aim to reduce their size as well as their consumption. We have therefore seen the recent appearance of the micro-LED solution now integrating screens, in particular via Samsung.
