Modern TVs provide the best picture quality, as well as the most saturated color reproduction. In this new models help modern technology. More recently, plasma flat-panel TVs were considered the pinnacle of technical thought, however, now they are replaced by other means came that could provide a whole new level of image transmission and quality Pictures. There are already demonstration models of televisions that are based on quantum dot technology that provide LCD backlighting.
What are quantum dots?
The content of the article
- What are quantum dots?
- Quantum dot TV - what is it?
- Advantages and disadvantages of such a technique
This technology is especially small particles, while reducing size, emit quanta of electromagnetic radiation - photons. Radiated electromagnetic radiation is nothing more than a beam of light. By adjusting the size of a small particle, you can set both the intensity and the 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 the physics textbook for grades 10–11.
By changing the basic parameters of the emitted radiation, such as the wavelength or the amount of radiated energy, it is possible to adjust both the intensity and the color gamut of the obtained quantum of light. Since at the moment the most popular way to get colors is RGB (Red, Green, Blue - the whole palette is obtained from combinations of red, green and blue colors of different saturation and contrast), then the emitted photons usually make three-color - red, green and red.
Quantum dot TV - what is it?
For a long time there are TV devices whose backlighting is based on quantum dots, however, until recently it was 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 provides high quality color reproduction, as in this case the wavelength of the emitted light can be accurately adjustment.
Advantages and disadvantages of such a technique
The main advantage of such screens is a significant expansion of the color gamut. Together with LED backlight technology, quantum dots can provide color gamut close to 100%, which was unattainable for conventional LCD TVs. In addition to Sony, other companies are also beginning to master 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 a rather high price, since the technology is not put on stream, 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 drop and such TV models will become publicly available.
