Today, the world's mainstream TV manufacturers stand the two camps of OLED and quantum dot. Compared with organic OLEDs, inorganic quantum dot TVs are generally favored by the industry. In particular, Samsung and TCL, two Chinese and foreign color TV giants, have joined forces to make the outside world feel the power behind this team.
In April this year, the “2017 International Quantum Dot Display Industry Forum†was held in Beijing. Liu Yufeng, Vice President of China Electronic Chamber of Commerce, Lu Jianbo, Deputy Secretary General of the China Electronics Video Industry Association, Bai Weimin, and Academician of the Chinese Academy of Sciences, Ouyang Zhong Can, Zhejiang University professor Peng Xiaogang, Samsung Electronics Greater China Vice President Liu Junguang, SpectraCal joint CEOMr.MarTInE.Fishman and other heavyweight guests came to discuss the quantum dot display advantages and future development.
The reason why quantum dots are the future development direction of TV is because OLED uses organic materials, and it is better to use quantum dot TVs with inorganic materials in terms of image quality, cost, power consumption and longevity. Quantum dots show the upgrade of color gamut coverage, color control accuracy, red, green and blue color purity, which makes it have higher brightness, wider color gamut, more pure color and longer life.
From the perspective of development speed, large-screen OLEDs are indeed faster than quantum dots. OLED is also preferred by Sony, Skyworth, LG and other companies due to its advantages of self-illumination, printability and flexibility. In fact, quantum dot technology can also achieve the above advantages, but this is mainly reflected in the quantum dot self-luminous technology, but the research of this technology is still in its infancy, at least 3-5 years of research and development.
At present, TV manufacturers mainly develop and produce optical quality sub-point TVs. Although they can't get rid of LCD backlights for a while, the Chinese Academy of Sciences academician Ouyang Zhongcan believes that liquid crystal display is still the mainstream. The application of quantum dot technology has improved the picture quality of LCD TVs. At the same time, this is also an important direction for the transformation of LCD TVs into high-end.
Why do many companies and experts regard quantum dots as the global display technology revolution? In the 13th Five-Year Plan of the Ministry of Science and Technology, why is quantum dot printing and display listed as a key technology? From the test data of TCL, Samsung and Hisense Quantum Dot TV issued by Saixi Laboratory of China Electronics Technology Standardization Institute, even the light quality sub-point TV is in peak brightness, white field brightness, black brightness, dynamic contrast, NTSC color. The image quality of the domain and other aspects can be comparable to OLED TV, and even better than OLED TV in some indicators.
Take the TV of the quantum dot material used by TCL as an example, its life span can reach 60,000 hours, while the life of an OLED TV is only about 10,000 hours, and that of a high-end product is 50,000 hours. If it exceeds, there will be a residual image. Quantum Dot TV, while avoiding the above problems, has a wider color gamut and increases the LCD color gamut by 38% without increasing the CF film thickness. The range of colors presented by the TV is richer and better reflects the true color of things. In addition, the color of the quantum dots is more pure, and the spectral peaks corresponding to the red, green and blue primary colors displayed by the quantum dot television are clear and clear, without overlapping each other, bringing the purest color expression.
It can be seen that the development of quantum dots is one step at a time. At present, TCL and Samsung are unswervingly taking the quantum dot TV technology route and using quantum dot TV as the main product. Hisense chose "ULED + Quantum Dots" technology as the technological breakthrough direction of the TV product line. From the perspective of the upstream industry chain, there are three major sub-material manufacturers in the world: Nanoco in the United Kingdom, Nanosys in the United States and QDVision in the United States (acquired by Samsung). Among them, Nanosys holds more than 300 patents related to quantum dot display. In the domestic panel companies, such as BOE, Huaxing Optoelectronics, Longteng Optoelectronics, etc. have quantum dot technology related research and development, production.
In terms of sales volume, the sales volume in 2016 is still 7 times that of OLED. In the first 14-14 weeks of 2017, the retail volume of quantum dot TV in the color TV market has reached 4.77%, while OLED TV only achieved 1.22% of retail sales. Permeability. Quantum dot technology will develop together with OLED. OLED technology is used on small screens such as mobile phones and watches, which can better reflect its advantages. The large screen of TV and quantum dots can be developed and developed steadily.
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