Quantum dot TV - what is it?

Modern TVs provide the best picture quality, as well as the most saturated color reproduction. Modern technologies help new models with this. Until recently, plasma flat-panel TVs were considered the pinnacle of technical thought, however, now they have been replaced by other means that can provide a completely new level of image transmission and picture quality. There are already demo models of TVs that rely on quantum dot technology to backlight LCD displays.

What are quantum dots

This technology consists in the peculiarity of small particles, when decreasing in size, to emit quanta of electromagnetic radiation - photons. The electromagnetic radiation emitted is nothing more than a beam of light. By adjusting the size of a small particle, you can set both the intensity and energy of the emitted photon.

REFERENCE. This scientific research is not something special, and the most complete information about this effect can be found in a physics textbook for grades 10–11.

By changing the basic parameters of the emitted radiation, such as the wavelength or the amount of emitted energy, you can adjust both the intensity and the color gamut of the resulting light quantum.Since at the moment the most popular method of producing colors is RGB (Red, Green, Blue - the entire palette is obtained from combinations of red, green and blue colors of different saturation and contrast), the emitted photons are usually made in three colors - red, green and red.

Quantum dot TV - what is it?

There have long been TV devices whose backlighting is based on quantum dots, however, until recently these were just prototypes that were not intended for mass production. Several years ago they began to produce serial models.

In particular, Sony has provided a matrix model which is based on photon emission technology, which ensures high quality color rendering, since in this case the wavelength of the emitted light can be precisely adjusted.

Advantages and disadvantages of this technique

The main advantage of such screens is a significant expansion of the color gamut. Together with LED backlight technology, quantum dots make it possible to provide color gamut close to 100%, which was an unattainable value for conventional LCD TVs. Besides Sony, other companies are also starting to embrace this technology. For example, LG has UHD device models that support quantum dot technology. These devices are direct competitors of OLED TVs, as they provide a picture no worse, with the same complexity of production.

The only drawback of these devices can be the rather high price, since the technology is not commercially available, and each TV is a kind of exclusive model.Perhaps, over time, when more devices using this technology appear on the market, the price will decrease and such TV models will become generally available.