Quantum dots that withstand intensive investigation become the next trump card in the television industry?

During the 618 period, TV sales reached 602,000 units, an increase of 103% year-on-year, and sales reached 1.4 billion, an increase of 65% year-on-year, even surpassing World of Warcraft movies in China. TV sales in recent years can not be separated from behind the technological innovation and TV people's pursuit of picture quality, diversified TV era opened the prelude.


Image quality ushered in the era of pluralistic development of revolutionary television

In 1982, domestic enterprises began to introduce color TV production lines and started mass production. In 1997, consumer-grade rear projection TVs came out. Many people's memories of TV may have started from that era.

From the CRT to the current LCD TVs, after only a decade, LCD TVs have taken advantage of more than 90% of the market, and announced the perfect curtain call for the CRT dynasty. The development of LCD TVs has achieved great technical improvements. However, with the rapid upgrade of video formats, LCDs have gradually become weak and various new panels have been iteratively updated. The picture quality revolution in the color TV industry has ushered in a new upsurge.

In view of the quality revolution that has occurred in recent years, in 2008, the Beijing Olympic Games was held, flat-panel TVs were widely used, PDPs and LCDs each occupied half of the market. In 2013, the plasma camp was defeated, and LCD dominated the market again. Now there is TCL. Leading Quantum Dots, Laser TVs launched by Hisense, Skyworth’s flagship OLEDs, etc. are all colorful, and have laid a solid foundation for the future development of the industry.

Although LCD TVs have been around for a long time, they still have great potential. The development of optimized technologies has shown a wide range of developments, such as ultra-high definition display technology based on picture quality, 3D display technology, HDR display technology, curved display technology, and quantum dots that are now very hot. Display technology.

Speaking of quantum dots, as early as 2014, TCL launched China's first Quantum Dot TV H9700, proclaiming the arrival of quantum dot era. In 2015, TCL launched the quantum dot surface H8800 television, which opened the quantum dot and surface technology for the first time. This year, TCL launched a high-end new class of QUHD Quantum Dot TVs, forming the industry's strongest Quantum Dot TV camp, and driving quantum dot technology outbreaks. Today, quantum dots have become the core of future display technologies.

TCL pushes high-end quantum dots into high light

TCL QUHD fusion quantum material, quantum image processing engine and multi-dimensional integrated image quality enhancement technology, through the "singularity innovation", the first to break through the ceiling of LED technology, quantum dot optical components is one of the most colorful display technologies available today. The domain range reaches NTSC110% and Rec.202090%, which is 50% higher than that of ordinary white LEDs. It also has advantages over other wide-gamut televisions such as OLEDs.

According to reports, QUHD uses inorganic nanocrystals in the form of "crystallographic" quantum display materials, only 2-10 nanometers in diameter, and can emit fluorescent light after being stimulated. This brings four unique advantages. First, due to the use of mature inorganic materials, the fluorescence lifetime is longer and there is no concern about product life. Secondly, QUHD has achieved an ultra-high color gamut display of 110% NTSC, which is more than 10% higher than OLEDs. Users can see more colors and truly restore the natural colors. Again, with the aid of quantum display materials, the spectral peaks corresponding to the red, green, and blue primary colors displayed by QUHD are clear and without overlapping, resulting in the purest color expression. Finally, by adjusting the quantum grain size, it is possible to easily and precisely adjust the wavelength of the generated light wave, achieving a breakthrough in the display technology from the traditional micro-level to the QUHD nano-scale, leading to more precise color control.

It is reported that TCL's recent QUHD X1 is equipped with a quantum display material and a quantum image processing engine, and is equipped with a multi-dimensional integrated image quality enhancement technology to achieve a comprehensive improvement in brightness, contrast, and detail processing. Among them, QUHD is equipped with the industry's highest standard Dolby Vision HDR technology, achieving a maximum brightness of 1000nit and a dynamic contrast ratio of 10,000,000:1. HDR image's three-dimensional color space is 60 times that of traditional TV, and the layering is more prominent. At the same time, X1 applied Local Dimming backlight partition technology to achieve the industry's highest 288 partitions, brightness control accuracy increased by 1024 times. The X1 revolutionized the use of OD 5mm display solutions, which is much smaller than the average TV OD 20-30mm, and is currently the thinnest HDR local dimming TV in the industry.

Professional organizations testing QUHD standards exceeds most panels

On June 22nd, Beijing Tairuite Testing Technology Service Co., Ltd. conducted an authoritative inspection on the flagship product of TCL QUHD Quantum Dot TV.

The inspection found that QUHD products have applied Local Dimming backlight partition technology to achieve the industry's highest 288 divisions, but also improve backlight efficiency and reduce energy consumption. At the same time, the tested QUHD products have revolutionized the use of OD 8mm display solutions, which are far smaller than ordinary TV OD 10-20mm. It is the thinnest HDR local dimming TV in the industry. At the same time, QUHD's first-ever brilliant image quality processing engine is TCL's truly patented product, which improves image quality in terms of color gamut, brightness, and stability. The effect is more plentiful and delicate, and it is an epoch-making image quality improvement. technology.

According to Xie Yudi, the research manager of Territt, the peak brightness of QUHD reached a maximum of 1,630 cd/m2, which surpassed the test indexes of all products in large databases. In general, the large database average of each indicator represents the overall level of the current industry products. The tested data of QUHD products exceed 77.9% of the average database size of 916 cd/m2 for the same type of products. Because of the difference in reality, LCD TVs are more likely to achieve higher peak brightness and are therefore higher than the average brightness of OLED TVs.

The color space coverage ratio (DCI-P3) of the QUHD product is the highest value in the large database, which is higher than the average of the gamut coverage of OLED products. At the same time, the tested QUHD products were 109% in color brightness, ranking first in the entire large database, 8.6% higher than the second.

In an interview with a home appliance alliance reporter, Wu Ruihua, the manager of Terrett’s second department, pointed out that the color gamut coverage rate is the number of types of colors used to represent TV products. The higher the color gamut coverage, the more colorful the displayed colors are; Brightness is a product that represents the brightness of a TV product when it presents a color image, and a product with a high color brightness will appear brighter.

In terms of sound effects, according to the TV industry standard SJ/T 11343-2015, the frequency response range of the television sound is required to be better than 200 to 6300 Hz, while the QUHD is equipped with a Harman Kardon sound, and the frequency response of the sound reaches a frequency range of 60 to 20000 Hz. In the industry standard, 97% of products in large databases are surpassed. At the same time, QUHD minimum source EMF output sound pressure level is 91dB, ranking first in the large database; sound channel noise level is 19dB (A). In addition, the total harmonic distortion of the QUHD is 3%, which is far below the level of the parameter of ≤10% in the industry standard, and is ranked first in the large database.

In the power consumption test, the dynamic power consumption of the QUHD X1 TV is 118.5W, while the average power consumption of the 65-inch product in the Tairui Database is 123.7W, which is 4.2% lower than the average value.

Judging from this result, the QUHD X1 TV excels in local brightness, high dynamic range, contrast, color, presence, and sound effects. The bright areas are separated and the dark areas are rich in detail, colorful, and true. With a strong sense of presence, sound bass and treble can achieve excellent performance. Quantum-dot TV can be said to be a product with all-round advantages, which will play a key role in the future development of television.

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