According to reports, Quantum-dot TV is an upgraded form of LED TV. Some manufacturers call it QLED, the shorthand for "Quantum Dot Light-Emitting Diode." The Chinese name is "Quantum Dot LED." This concept was obscure until 2013, but at the 2014 CES show, LG launched QD TVs. In the following 15 years, Samsung, TCL, and Hisense all entered the game, forming a quantum dot camp.
The Quantum Dots (QDs) mentioned here consist of zinc, cadmium, selenium, and sulfur atoms and are nanometer-sized materials with a crystal diameter of between 2 and 10 nanometers, and have luminescent properties. Filling the thin film or transistor containing the sub-dots between the backlight and the liquid crystal panel, the blue light emitted by the LED light source can be completely converted into white light, and the backlight can be finely adjusted so as to further enhance the light output of the entire backlight system relative to the conventional LED television. .
Quantum-dot television has been mixed in the market, and its wide-area color system is its main advantage. Immature technology and cadmium-containing problems have become the key to its reputation. The mainstream evaluation believes that quantum dot TV and OLED TV are not a single layer of technology. Quantum dot TV is still a passively lit LCD TV. In addition, although the color performance of quantum dot TVs is strong, the excessively bright images affect the viewing experience.
As for the solid-color technology televisions that have won wide attention this year, although they have not been developed for a long time, they have won a good market reputation for their innovative technology. Pure color technology is a new generation of color enhancement technology that absorbs backlight stray light through light nanomaterials, thereby purifying backlight source colors. On the basis of achieving a wide color gamut, the color purity is improved, and the advantages of more accurate colors and more realistic images are achieved. Unlike ordinary LCD TVs to enhance the color gamut, pure color technology adds a layer of light nanomaterials with a diameter of about 1 nm between the wide color gamut backlight and the liquid crystal module, which specifically absorbs the stray light emitted by the backlight source and enhances the red, green, and blue light. The purity of the light of the three primary colors can then more accurately represent the color of the screen and present a true picture. In addition, pure-color television has been widely recognized by people in and outside the industry for its use of optical nanotechnology. Its outstanding color reproduction and expressiveness have earned it a good reputation. The emergence of solid color technology has broken the liquidity field with few substantive breakthroughs, allowing consumers to re-understand the other extreme possibilities of audio and video beyond OLED.
So who is the king of LCD TVs? From the comparison and evaluation of Xiao Bian, quantum dot TV seems to have a higher color gamut than pure LCD TVs of the same LCD TV. However, people in the industry believe that when the color gamut reaches 90% or more, it is difficult for the human eye to distinguish the difference, and the color gamut only indicates the range of color display and cannot be equated with the quality of the color. On the other hand, QD TV's impact on word of mouth due to excessive emissions of blue light, heavy metal-containing pollutants, and immature technology have made it more comprehensive. Of course, the conclusion is not absolute, and technology is constantly evolving. As experimental research results have been more widely recognized by academics and industry, the future of television display technology will usher in a new round of technological trends, and more display technologies that are full of imagination will benefit millions of households.
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