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The future of smart TV? In-depth interpretation of quantum dot TV

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Time of issue:2021-02-25
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(Summary description)In the field of smart TVs, quantum dot TVs have developed rapidly, driven by traditional black home appliance companies such as Samsung, TCL, and Hisense. Especially in the downturn of the entire color TV market, quantum dot TVs are still growing. This shows that quantum dot TVs still have many advantages and features that traditional TVs cannot match. But how much do you know about quantum dot TV?

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The future of smart TV? In-depth interpretation of quantum dot TV

Categories:Company News
Author:
Origin:
Time of issue:2021-02-25
Views:0

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In the field of smart TVs, quantum dot TVs have developed rapidly, driven by traditional black home appliance companies such as Samsung, TCL, and Hisense. Especially in the downturn of the entire color TV market, quantum dot TVs are still growing. This shows that quantum dot TVs still have many advantages and features that traditional TVs cannot match. But what do you know about quantum dot TV?

Quantum dots are a new type of semiconductor nanomaterials, which are composed of extremely tiny semiconductor nanocrystals that are invisible to the naked eye. Generally speaking, quantum dots are made up of zinc, cadmium, selenium and sulfur atoms. In 1983, scientists at Bell Labs in the United States conducted research on it for the first time. A few years later, physicist Mark Reid at Yale University officially named this semiconductor micro-block as "quantum dot" and it is still in use today.

As we all know, at the micro-physical level, particles have many unique physical properties. Quantum dots, as nano-level inorganic substances, have a unique feature: when stimulated by light or electricity, quantum dots will emit colored light. The color of the quantum dots is determined by the material, size and shape of the quantum dots. This feature allows the quantum dots to change the color of the light emitted by the light source.

Quantum dots can completely convert the blue light emitted by the LED light source into white light, instead of only absorbing part of it like YAG phosphors. This means that under the same bulb brightness, quantum dot LED lamps require less blue light. Naturally, it needs less electricity, and its more efficient performance makes it even better in terms of energy saving and emission reduction.

The use of quantum dot technology on TVs also has unique advantages. The backlight of ordinary LCD TVs is only pure white, while the backlight of quantum dot TVs can display different colors. The quantum dot TVs launched by TV manufacturers represented by Samsung and TCL can effectively increase the brightness of the TV by 30%-40% by adding quantum dot materials to the backlight module, and the color conversion efficiency of the backlight is also greatly improved. Improved, the color is brighter, the purity is twice that of ordinary LED TV, and it has the characteristics of energy saving and environmental protection.

For LCD TVs, the brightness of the backlight is actually an important indicator to measure the level of the TV's picture quality. Only transparent and bright backlights can bring pure and vivid picture colors. The quantum dot TV can reach a peak brightness of more than 1000 nits, which not only enables the TV to present clear picture quality, but also shows more hidden details in the light and dark parts of the picture.

In addition, quantum dot TVs are very energy-saving. Compared with OLED TVs, quantum dot TVs can save up to 50%. Compared with LCD panels, they are only about one-tenth of the current power consumption. The reason for this advantage is that QLEDs are more efficient at converting electrons into photons. With the same screen brightness, quantum dot TVs naturally consume less energy.

Compared with the brightness information, the color is a subtle change that the human eye can easily perceive. With the upgrade of the backlight material, the quantum dot TV can achieve a very wide color gamut. With the HDR effect, regardless of the brightness information of the screen, the color of the TV is not There will be distortion.

In the process of TV development, in terms of appearance, the screens of TVs are getting larger and thinner, and the thickness of the body is getting thinner. But at the root, the root of TV's continuous evolution comes from the development of TV backlight brightness. The picture quality has improved. Only a bright backlight can meet the technical requirements of modern TVs such as 4K and HDR.

To sum up, the advantages of quantum dot technology are "long, wide, pure and bright". Respectively refers to the longer life of the material (for example, the life of the quantum dot material used by TCL is as high as 60,000 hours), the wider color gamut (which can increase the LCD color gamut by 38%), and the purer color (the three primary colors of red, green and blue displayed) The corresponding spectral peaks are clearer), and the brightness is higher (largely enhance LCD brightness). These advantages have brought a direct user experience improvement. The color of the TV is richer, purer, and brighter. Some experts even believe that the quantum dot display makes the ultimate visual experience possible.

The continuously upgraded TV format not only exceeds the imagination of industry professionals, but also breaks through consumers' expectations for the future. Quantum dot TVs also rely on the use of inorganic nanomaterials to bring consumers more pure and bright colors and a natural look closer to the real world.

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