In recent years, the display technology field has changed dramatically, and the battle between OLED and QLED has attracted much attention.
In 2017, OLED TVs showed signs of fatigue, and quantum dot TVs gradually entered a stage of rapid development. Different TV manufacturers made choices and stations in line with their own interests according to the situation, just like plasma and LCD. At present, China's color TV industry is facing a critical stage of high-end development and product structure upgrade. Which technology can be called the ceiling of LED technology? OLED and QLED are fighting for each other. Who can finally take advantage and become the throne?
A recent video on the Internet about discussions between experts, scholars and authorities in the industry may make the answers to the above puzzles finally surface.
OLED technology limits breakthroughs hopeless, experts and scholars support quantum dots
It can be learned from the video that OLED TVs are listed early, detonated quickly, and promoted greatly, but it is difficult to cover up the "incapable" situation in the color TV market in recent years. As a top expert in domestic research on quantum dot technology, Professor Peng Xiaogang of Zhejiang University said: "OLED is an organic material, inherently unstable, leading to problems such as longevity and poor light efficiency. There are currently problems that cannot be coordinated, and the yield rate, especially Large-screen applications are still not up to commercial requirements."
Ouyang Zhongcan, a member of the Chinese Academy of Sciences, pointed out that the biggest problem with OLED screens is that they have a short life span. If used for more than 3 years, the blue light will turn red. Generally, small-sized terminal equipment will be replaced after one and a half years of use, just not affected. The screen is used. It can be used on large TVs, but it won't work."
Dr. Luo Zhongsheng, General Manager of Greater China, the global leader in quantum dot production, mentioned that the quantum dot material has four unique advantages over the defects of OLED organic material properties: longer lifetime, wider color gamut, more pure color, and brighter brightness. high. Therefore, quantum dots are better than OLED TVs in terms of peak brightness, white field brightness, black brightness, dynamic contrast, and NTSC color gamut while avoiding OLED problems.
Professor Xu Zheng of Beijing Jiaotong University is a veteran of the luminous display industry. He is also very optimistic about the prospects of quantum dot technology. "The quantum dot has a great advantage. Its biggest feature is that the half-height of the photometric curve is very narrow, making it easy to achieve a relatively high color gamut, while other materials have a wide half-height and wide, and the color gamut is difficult to perform. The degree of quantum dots is reached. In addition, the quantum dots are highly efficient, so that it is easier to implement than other materials when it is used as an electronic light-emitting device." Professor Xu believes that display technology will continue to lead all aspects of human life, and quantum dot technology will It will bring about tremendous changes in human life.
Quantum dot technology is maturing, and its potential will affect future technological development.At present, in the national key research and development plan of the Ministry of Science and Technology, the “quantum dot light-emitting display key materials and devices research†has been listed as the “strategic advanced electronic materials†key special project. Lu Jianbo, deputy secretary-general of the China Electronics Chamber of Commerce, said that quantum dot technology has become the mainstream display technology for color TV products. It will replace LCD and OLED as the next-generation mainstream display technology.
Quantum dots are a good luminescent material discovered by humans so far, and quantum dot electroluminescence will be a favorable competitor for next-generation display technology. The backlight of the quantum dot makes the color of the display color and the color saturation high, which is difficult for other display technologies. The brightness and peak brightness of quantum dot TV in white field far exceeds the traditional LCD TV and OLED TV, and the color gamut coverage also exceeds that of LCD TV and OLED TV. In addition, the black-field brightness of quantum dot TVs is comparable to that of OLED TVs, and the dynamic contrast ratio far exceeds that of LCD TVs.
According to the monitoring data of Zhongyikang, OLED TV has 29,562 sets of retail sales and 213,348 sets of quantum dot TVs in 2016. Compared with OLED TVs that have been launched in the market for nearly two years, it is more than seven times higher. It is understood that TCL, as the first company to install quantum dot technology TV in China, has become a representative of emerging display technology in China as early as 2014. In 2017, quantum dot TV entered a period of full-scale explosion, and R&D and application entered a new stage. Quantum dots became the starting point for many enterprises to transform in the display field.
With the continuous launch of new product launches in the color TV industry this spring, the situation has changed in both camps. At present, TCL and Samsung's Chinese and foreign leaders have taken the lead, and the leading companies in Hisense and other leading enterprises have participated in the promotion of the “king patternâ€. Quantum dot TV has broken through the ceiling of LED technology and is a high-quality color TV product based on high-end screen display technology innovation, which is of great significance to the consumption upgrade of China's consumer electronics market.
In the fierce battle of color TV technology, the outstanding performance of quantum dot TV in the market depends on the support of various enterprises, and more depends on its unique display technology advantages. TCL spring new XESS X2/X3 is equipped with the third generation of inorganic three primary color quantum dot display materials, with the advantages of "high, pure, long". "High" means high color gamut; "pure" means pure color; "long" means long color. It is known that its life span can reach 60,000 hours, the peak brightness is above 1500 nits, and its white light efficiency is 3.6 times that of OLED TV. It is more efficient when comparing individual colors individually. It can reach 110% of the NTSC standard, exceeding 80%-100% of OLED, and restore all the colors that people can perceive. Similarly, the spectral peaks corresponding to the three primary colors of red, green and blue are clear and clear, and there is no overlap between the pure ones, bringing the most realistic color expression.
Moreover, the video of Academician Ouyang Zhongcan also mentioned: "Quantum point technology is not a simple display of scientific research results, but a real technological achievement. Compared with OLED, quantum dots have a broader market prospect for application on large-screen TVs." At present, quantum technology is not only used in the field of television, but also in the communication, medical, outer space exploration and other aspects of human life in the future, creating tremendous subversive power, completely changing people's production and life style.
In order to fully popularize quantum dot TV and provide consumers with better audio-visual experience, with the support of channel vendors and TV industry associations, Quantum Dot TV has begun to promote nationwide promotions, and leading companies such as TCL and Samsung are actively participating. It is understood that TCL immediately launched the May 1 carnival after the 414 new product landing day promotion. As the most important promotion event in the first half of this year, at present, TCL spring new products are abundant. At that time, consumers can choose online channels such as Suning and Gome, as well as Jingdong and Tmall TCL official malls (.com). Purchased X, C, P three series of new products in stock.
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