Polish the eyes to see the "trap" to reveal the kittens advertised by the TV!

It's the annual "3.15" consumer rights day again, this year's "3.15" exposed a large number of unscrupulous enterprises and businesses that harm the rights and interests of consumers, mainly involving food safety, telecommunications fraud, network security and other illegal infringements that endanger public safety, but for consumers, just one day of sports exposure is not enough, and in all walks of life, there are some unspoken rules prevailing in the industry, although there is no clear false publicity, shoddy and other behaviors. However, in the marketing activities of manufacturers, it plays a role in confusing and confusing the public, which is undoubtedly unfavorable to the sustainable and healthy development of the industry. The same is true of the home appliance industry, especially in the TELEVISION industry where various parameters and technical indicators are prevalent, this phenomenon is also common. On the occasion of "3·15", consumers must polish their eyes when purchasing TVs and see clearly the unpredictable details of them.

Technical nouns fly around in English The longer the letters, the better?

The tv industry has always been a show of technology, and technological upgrading not only provides energy for the improvement of the sound and picture quality of television, but also leaves room for the small actions of manufacturers. Nowadays, most of the technical terms of television are Abbreviations in English, and it is easy to look confused if they are not careful, and manufacturers also take advantage of consumers' unfamiliarity with technical terms, and deliberately "touch porcelain" other technical terms with the technology of their own products, consumers can easily be deceived if they do not pay attention to observation.

For example, OLED and QLED, the difference in name between the two is very small, but the difference in actual technology is quite large. OLED full name "organic light-emitting diode", and we are familiar with the liquid crystal technology is very different, is a self-luminescent display technology, the advantage is high contrast, black display pure, good color performance, good dynamic effect, is recognized in the industry as a strong competitor for the next generation of display technology. However, due to the high price, it is difficult to popularize it quickly for a while. And some manufacturers publicize the "QLED", in fact, is the traditional LCD TV, but in the backlight module added quantum dot material to improve the color performance of the TV, its actual effect and OLED TV or there is still a big gap, if it is a user who pays attention to the quality of the picture, we must pay attention to the four letters of "OLED".

In addition, there is now a kind of "ULED" TV on the market, strictly speaking, ULED is not an abbreviation of a certain technology, but a certification standard for manufacturers of their own product grades, through a series of technologies, to achieve a certain effect, it is called "ULED" TV.

In 2022, the world's first QD-OLED TV was officially launched, and QD-OLED technology became famous overnight. As the name suggests, QD-OLED TV mixes the characteristics of quantum dot technology (Quantum-Dot) OLED technology, using photogenic quantum dot materials to replace the filters in the OLED TV panel, the color gamut is greatly improved compared to the OLED TV, according to the supplier's information, 55 and 65-inch QD-OLED TV color gamut coverage can reach 90.3% The BT.2020 color gamut refreshed the color gamut coverage record of screen display technology and opened a new era of OLED TVs. However, QD-OLED TVs are currently tight in production capacity, and it is reported that the annual output is only 500,000-600,000 pieces, and the price has risen as a result. Therefore, some manufacturers have started the idea of touching porcelain and launched the so-called "QD-MiniLED" concept. But in fact, the so-called "QD-MiniLED" is actually a MiniLED TV, but with the help of QD-OLED, it has become a new technology. In terms of practical effects, MiniLED has its own advantages in terms of picture quality and OLED TV, but in comparison, the advantages of QD-OLED TVs are still relatively obvious.

8K Live Is The 8K TV Bought Real?

In the just-concluded Beijing Winter Olympics, 8K technology shined. The Beijing Winter Olympics achieved full coverage of 8K including the opening and closing ceremonies and live broadcasts of key events, and such a large-scale application of 8K technology is also the first time in the world. During the event, dozens of outdoor high-definition screens across the country also gave many citizens the charm of 8K definition for the first time.

However, as a TV for home display terminals, 8K technology is still in its infancy. According to the data, the shipment volume of 8K TVs in the Chinese market in 2021 is only about 100,000 units, compared with the annual shipment of 38.98 million color TVs, accounting for only about 0.3%, and it is difficult to leverage the entire market in a short period of time. Factors such as large screen size, high price, and lack of use scenarios restrict the development of 8K TVs. However, 8K as a core technology breakthrough in the color TV industry in recent years, many products obviously do not have 8K full-process display, but also find ways to rub on the heat of 8K for publicity.

Generally speaking, a true 8K TV requires input, processing, display and other support for each ring of 8K, from the HDMI 2.1 interface, to the chip that supports 8K video decoding, image processing, and then to the display panel with 8K resolution. Nowadays, many TV products only have signal interfaces and chips that support 8K input, and they say on the promotional page that they support 8K decoding. This kind of publicity is certainly not false propaganda, but how meaningful is the 8K video displayed on the 4K screen? With so little 8K content available today, how much 8K video can consumers find for TV?

The peak brightness rises higher and higher, and the experience gap is large?

Now HDR has become an indispensable part of high-definition video, HDR and brightness are most closely related, so brightness indicators have become the core selling point of manufacturers' publicity. However, the brightness advertised by manufacturers is often called "peak brightness". Especially for OLED TVs, the reference value of peak brightness is not large.

Because OLED TV is self-emitting, so the light-emitting material will decay with time, the higher the brightness, the greater the working intensity, the faster the attenuation speed, in order to prevent the OLED panel from decaying too quickly, the panel manufacturer will deliberately reduce the brightness of the full screen when the screen brightness is too high, this function is called ABL (AutoBrightnessLimiting automatic brightness limit). Trigger ABL has two conditions, one is that the brightness is high enough, and the other is that the image area is large, so the highest brightness of the OLED TV is concentrated at a point in the center of the screen, and the surrounding area is black, which is the peak brightness advertised by the manufacturer. But in the actual viewing of consumers in the scene, such a picture is relatively rare, generally speaking, OLED TV display full-screen image brightness is about 300 nits, the higher brightness of the picture can reach about 600 nits.

Is HDMI 2.1 standard and the effect is the same?

Since it comes to HDMI 2.1, the "pit" on this interface must not be mentioned. Due to the significant increase in bandwidth, HDMI 2.1 support includes 8K, 4K 120Hz, VRR and other new formats and technologies, and the current high-end TV has basically popularized the HDMI 2.1 interface. However, when consumers buy, they must pay attention not to buy "fake" HDMI 2.1. Although the fake HDMI 2.1 is nominally HDMI 2.1, it only has the bandwidth and functions of HDMI 2.0 and cannot support 8K, VRR and other technologies.

What is even more absurd is that the HDMI 2.1 of this cottage is actually a famous hall made by the official organization of the HDMI Association. According to the latest version of the HDMI standard protocol, the HDMI 2.0 standard no longer exists, but is collected in HDMI 2.1, and at the same time, 48Gbps full blood bandwidth, VRR, ALLM and other technologies are no longer mandatory indicators of HDMI 2.1. In other words, as long as the bandwidth reaches 18Gbps in the future, it is the HDMI 2.1 interface, and the version after HDMI 1.4 is HDMI 2.1, and there is no more HDMI 2.0.

This is comparable to a series of tumultuous operations of the USB organization is really confusing to consumers, in the future want to buy the real HDMI 2.1, must look for the word FRL, and the nominal HDMI 2.1 (TMDS) is the original HDMI 2.0.

Of course, there are still many problems with the vague publicity of manufacturers, here are just a few relatively typical examples, what other confusing publicity behaviors have you seen?

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