Display Technology Analysis True QLEDs Can Glow
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Industry has concluded QLED definition
The above-mentioned self-luminous display technology in the end is why the current display industry only OLED technology and QLED technology is called self-luminous technology, and other display technologies are just LCD innovation. Although both OLEDs and QLEDs are self-illuminating technologies, QLEDs have apparently not been widely known by consumers compared to mature OLEDs.
QLED is the abbreviation for Quantum Dot Light Emitting Diodes. The Chinese name is commonly referred to as "quantum dot light emitting diode" in academic circles, and "QDs display authentication technology specification" issued in December 16 will be called QLED "QD. Luminous display." Quantum-dot light-emitting diodes (QLEDs) are self-illuminating technologies that are still under development and do not require additional light sources. Self-emission technology is under development, its structure is very similar to OLED technology, the main difference is that the emission center of QLED is composed of Quantum dots (QDs), and its structure is Electron and Hole in Quantum. The photons (Exciton) are formed after converging in the dot layer, and they emit light by recombination of photons. Quantum dots have a distinctive characteristic: Whenever they are stimulated by light or electricity, the quantum dots emit colored light. The color of the light is determined by the material and size of the quantum dots. This characteristic makes the quantum dots can change the light source. The color of the light emitted. 
As a self-emission technology, quantum dot self-luminous display (QLED) also has the advantage that liquid crystal cannot be possessed. It can significantly improve display performance such as color gamut, brightness, and contrast of display devices, and has a huge impact on color TV industry dedicated to improving picture quality. Contributions. In addition, it is worth mentioning that the quantum dots can completely convert the blue light emitted by the LED light source into white light instead of absorbing only a part like the YAG phosphor, which means that the quantum dot LED lamp is required under the same bulb brightness. With less blue light, the power required for electro-optical conversion is naturally less, and the more efficient performance makes it more superior in energy saving and emission reduction.
However, unfortunately, since quantum dots of self-luminous QLEDs are easily affected by heat and moisture, they cannot achieve the same vapor deposition method as self-emitting OLEDs, and can only develop inkjet printing processes. Currently, the QLED technology is still in its infancy, and there are constraints such as low reliability/efficiency, unstable blue component life, and difficult R&D of the solution process. Therefore, the industry believes that it will take at least 10 years from commercialization at this stage. As for the picture quality after commercialization, we can only wait and see. This is an important reason why QLEDs cannot exceed OLEDs in self-emission technology.
Li Taotao stiff, has listed "QLED TV" non-real self-luminous QLED
The future of self-luminous technology is favored by the world. However, some manufacturers are eager to seek success, and have played concept marketing and confused consumers. There are many so-called "QLED TV" products on the market. In fact, the so-called "QLED TVs" are not self-illuminating QLED TVs that actually use quantum dot light emitting diode (QLED) technology.
Why do you say this? QLEDs that have already mentioned that only inkjet printing processes can be developed are still in their infancy. However, QLEDs are already on the market and they are obviously worth discussing. In fact, the "QLED TV" that has already begun to sell is actually a quantum dot LCD TV that emits light from a backlight, not a true QLED TV (self-illumination), but only an increase in quantum dot film on the LCD TV backlight. In the color gamut, there are still inherent shortcomings such as light leakage, low contrast, poor viewing angle, and slow response speed in liquid crystal display products, and limitations on the picture quality and the design. 
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