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At present, as all human beings are facing the problem of shortage of natural resources, the unavoidable energy crisis is also calling for the birth of new materials. The truly scientifically important new materials need to meet three conditions: reconstructing substances at the atomic and molecular level, realizing new or better performance, and changing human lifestyles. Quantum dots fully satisfy these three conditions, and at the same time are the best luminescent materials that humans have ever discovered. 
For example, the smaller the quantum dot particles are, the longer the wave is. The larger the particles, the shorter the wave. For example, quantum dots with a size of 2 nanometers absorb long-wavelength red and show blue color. The 8-nanometer-sized quantum dots can absorb short-wave blue and appear red.
What is the use of "quantum dots"?
We all know that the imaging principle of LCD panels can be summarized as the addition of liquid crystal molecules between two glass substrates. After the voltage is applied, the molecular arrangement changes in a zigzag manner. The screen collides with the electron group and the image is created and reflected by external light. Screen. The liquid crystal itself does not emit light, and it requires a high quality CCFL cold cathode backlight to form a bright image. Subsequently, the backlight was changed from CCFL to LED backlight, which became what we often call LED TV. 
Quantum-dot TVs are an upgraded version of LCDs that have improved color expression after using better backlights.
Perhaps it's not appropriate to make an analogy. Traditional LCD TVs are just like the girls go out and only bare makeup. Although they are beautiful enough but the face is not so three-dimensional, and Quantum TV is like giving the girl a full set of makeup. Bright and beautiful.
What are the advantages of "quantum dots"?
The advantages of quantum dots can't be talked about for a while. I'll say a few important features for everyone.
First of all, quantum dots are inorganic materials that have strong stability, long life, and are not susceptible to aging. For example, most of the materials that make up rock are inorganic materials. Most of the human body is composed of organic substances. Stones are not affected by the sun every day. If we stand under the sun every day, we are afraid that it is easy to suffer. skin cancer. 
Comparison of quantum dot backlight display and white LED backlight display
Second, quantum dots have full color gamut display advantages and precise color control. The color gamut of conventional LCD panels is limited by the performance of the filter, but the emission spectrum of quantum dots is extremely narrow, so the color gamut is higher and can produce richer colors. The wide color gamut has a significant effect on the three-dimensional and texture of the picture. Just like a girl's face is shaded with repairing powder, it must appear more three-dimensional and more beautiful.
Again, quantum dots have low power consumption characteristics. Because each pixel of the quantum dot screen is also driven by a separate LED light source, power consumption is also lower.
Is the "quantum dot" material toxic?
It has been claimed that quantum dot televisions contain "cadmium" elements that are harmful to the human body. However, the fact is that normal use will not release this element and it will not harm the human body. Take a 55-inch quantum dot TV as an example, the cadmium content is equivalent to all the cadmium content in the 1kg rice of the World Health Organization. So, will we be poisoned when we finish eating a kilogram of rice? The answer is no. Moreover, new materials in quantum dot TVs are tightly packed and will not leak or harm the human body.
According to Xiaobian, TCL Quantum TV has passed the EU environmental protection certification, so this shows that TCL Quantum TV is a product that meets the safety and environmental standards, consumers can rest assured that the purchase. 
Professor Peng said that at present, China's quantum dot technology is already at the leading level in the world. Quantum dot TVs produced by major manufacturers belong to the first generation of products. That is, using the principles of photoluminescence, backlight sources are indispensable. It is expected that the next-generation quantum dot TV will adopt the electroluminescence principle in the next five years, that is, it will no longer need a backlight to have a clear image display. 
At the end of the brain-burning period, Xiao Bian has dedicated all of its learning to you. We sincerely hope that our quantum dot technology level can always be at the forefront of the world, allowing us to experience the high-end picture quality brought by QD TV faster.
What is Quantum TV? Secret QD Technology
In previous years, there was a well-received book called "God Rolling Dice - A History of Quantum Physics", which talked about some of the stories about quantum theory. Mongolian circle. Unexpectedly, Xiao Bian actually understood the quantum dots on the “Scientists Face to Face Quantum Dots Display Science and Technology Public Lecture Hall†organized by TCL, thanks to the world’s top nanomaterials scientist and Zhejiang University. Peng Xiaogang, professor of chemistry, gave a patient explanation. Below, Xiao Bian sells and sells it for you, telling you about the "quantum dots."
Large lecture hall scene
Professor Peng Xiaogang delivered a keynote speech
What is a "quantum dot"? Quantum dot properties
In simple terms, quantum dots are tiny inorganic nanocrystals that are invisible to the naked eye. Quantum dots emit colored light whenever they are stimulated by light or electricity. The color of the light we see is determined by the composition and size of the quantum dots. In general, the light can be changed by changing the size of the quantum dot crystals. colour. Quantum-dot TV schematic
TVs using quantum dot materials use a blue LED as the backlight, and optical materials using quantum dots are placed between the backlight and the LCD panel so that bright colors can be obtained by having sharp peaks of red, green, and blue light. If you don't understand it, let me put it another way. Quantum dots will form a thin film on the LED backlight of LCD TVs. With a blue LED, we can emit full-spectrum light and fine tune the light. Significantly increase the performance of color gamut and make the color more vivid. TCL QD TV in the middle
Is there any future for quantum dots? Quantum dot electroluminescent device physical map
In the future, when the electroluminescent quantum dot technology is put into use, the lighting and display industries will be subverted. By then, the use of quantum dots can print televisions like newspapers, which can effectively reduce waste and will also play an important role in alleviating the global energy crisis. It can be said that the future of Quantum Dots is bright.