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>> LCD and OLED please cease operations, QLED is the best luminous material? 9th,Nov,2017
After the price, technology and configuration, content and ecology, the TV industry's next direction of development, what will be?
Samsung, LG, Sharp and other industry giants recent moves, given the answer - display technology. After all, no matter what the size of a big screen, content, people eventually get the visual experience.
So out of a crowd of uncommon terms, has become well-known hot words. First, LCD (Liquid Crystal Display), then OLED (Organic Light Emitting Diode), and now, turn QLED - quantum dot display technology.
Or the best luminescent material
QLED quantum dots used, is a semiconductor nanocrystal. Quantum dots emit colored light when stimulated by light or electricity. The color of the light is determined by the composition of the quantum dots and the size and shape of the dots. Therefore, a high peak solid color light including red to blue light can be obtained by changing the shape of the quantum dots.
Quantum dot technology first appeared in the late 1970s and was discovered by Western countries in the hope of finding an efficient photoelectric conversion technology during the oil crisis. At present, the research on quantum dot correlation is a very hot area in the world, and there are tens of thousands of papers published in one year.
"Quantum dots are probably the best luminescent materials ever discovered by human beings." Peng Xiaogang, a professor of chemistry at Zhejiang University, said that quantum dots are nanocrystals of solution semiconductors, and each small particle is a single crystal, with only the size of a hair strand One around. Only need to change the size of quantum dots, you can bring up the desired color, and color purity, crystal stability is also high, which is difficult to match with other materials, and do not need to worry about the service life.
Color gamut, is to determine how much the human eye can observe the color of the standard. "According to the highest BT2020 standard, the Apple phone is only about 50%, which means that half the color does not show up, but the quantum dots can be 100% color gamut, restore all the colors we can perceive." Peng Xiaogang said.
Leap from the lab to the market
Quantum dot TV, has become the representative of the current nano-technology civilian products.
In the television market, QDTV has entered the public field of vision in 2014 and has become an important category in the mid-to-high-end market after nearly 3 years of development through the continued product richness of Samsung and other brands.
The development of the domestic appliance industry in this area, TCL is one of the representatives. Recently, TCL has released an inorganic three-color quantum dot TV XESS X2 / X3 series, using a new generation of inorganic three-color quantum dot display material.
Since the launch of QDTV in 2014, TCL has officially started its market-based test of quantum dots in China. In 2016, it launched the QUHD Quantum Dot TV to promote the commercialization, commercialization and marketability of quantum dots. According to Tyret Laboratories' first public test results, the QUHD TV's core indicators are excellent, especially the gamut coverage is the highest value in the big database, with the peak brightness exceeding the industry average of 77.9% and the color brightness exceeding the industry average of 26% .
According to Wang Cheng, vice president of TCL Group introduced the TCL using a new generation of inorganic three-color quantum dot display material, the volume is only one ten thousandth of organic light-emitting materials, to achieve the color processing from micron to nano-level magnitude breakthrough.
"The advantages of a new generation of quantum dots can be summarized as 'high, pure, long' three major. 'High' is the high color gamut, color gamut coverage of 110% NTSC; 'pure' is pure color, color purity than ordinary LED upgrade about 58.3%, can show the natural color; 'long' is the color for a long time, a new generation of ultra-thin quantum dots is a stable inorganic nano-materials, to ensure color does not fade, lasting color stability of up to 60,000 hours. To say.
Industry chain decided to seat
With the maturity of quantum dot technology, quantum dot television has broken the shackles of traditional image quality in many dimensions such as ultra-high color gamut, color reproduction and color purity, showing the potential of becoming the future display technology.
According to the forecast from NPD Display Search, QDTV will have an annual growth rate of 100% in China and is expected to grow from 600,000 units in 2016 to 1.2 million units in 2017 and 3 million units worldwide To 6 million units.
At present, the domestic and foreign television companies have already begun to smoke smoke on the layout of the quantum dot technology, and the price is the core issue of their marketization.
In this new release, TCL directly to Quantum TV pricing, "pulled down" to the acceptance of ordinary consumers within. Wang Cheng revealed that the third generation of quantum dots TV to reduce the thickness of the upgrade on the basis of quality, but also to achieve cost control through technological improvements, the first price of the quantum point TV into the mainstream price segment.
TCL has been able to do new product release cluster, but also in the hands of holding a trump card - Huaxing photoelectric.
TCL's Huaxing Power currently has three LCD panel production lines, products covering large-size TV panels and small and medium size mobile terminal panel. Huaxing photoelectric among the first camp of the global LCD panel, but also to become the only TCL to complete the vertical integration of the industrial chain of color TV enterprises, the core components of the supply is no longer controlled by others, to ensure that the global competitiveness of enterprises.
Even looking at the global market, with the vertical integration of the industrial chain, a total of only three TV companies. As the first domestic producer of quantum dot TV, TCL shipped more than 20 million units in 2016. In the current high-end high-end color TV market opportunities, is seizing the original belongs to the Japanese and South Korean giants share.
However, Samsung and other foreign giants are also accelerating the pace of quantum dot technology research and development. Not long ago, at the 2017 Samsung China Forum in Shanghai, Samsung showed dozens of different types of TVs, including four QLED QDs and eight models ranging from 55 inches to 88 inches Size section.
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