"Inner volume" is a very hot word in the past two years, which can be infinitely applied to various industries in the past and now, and even to everyone and every product. In the black electricity industry a few years ago, everyone's TV panel is almost the same, the technology is similar, the display effect is almost the same, in order to sell better, so the "inner volume" of that era - the price war began.
Nowadays, the black electricity industry is still very "inner volume", although the price of low-end TVs is different from the past, but the products have a qualitative improvement in sound and picture quality; under the catalyst of the trend of smart life, AI attributes have become the standard of every TV; when PS5 and Xbox Series X/S and other sub-era game consoles, cloud games began to enter the consumer's field of vision, color TV subdivision category game TV began to emerge, MEMC is no longer the dividing line of low-end TV, such as 4K + 120Hz high brush, VrR variable refresh rates and other technologies are no longer rare in gaming TVs at all price points.
According to Aowei cloud network data, the retail sales volume of "game TVs" with high refresh rates of 120Hz and above in the Chinese market in 2021 was 2 million units, an increase of 577% year-on-year, and it is expected that this data will double in 2022. At the same time, with the rise of the game TV category, picture quality + high brush has also become the core track of many black electric companies. But "more fish is bound to be muddy", and in the past year, some black electric brands have flipped on the "4K 120Hz" experience of game TV.
True and false 4K 120Hz doubtful cloud
If you split 4K and 120Hz to understand, many consumers can say one or two, nothing more than 4K represents excellent picture quality display, 120Hz represents a smooth picture movement trajectory, and the combination of 4K and 120Hz is "very beautiful and moist". True and false 4K 120Hz is like a person, we can see too many beautiful and moist people on the Internet, but some of them are naturally beautiful, and the other part is beautified.
The industry's preliminary identification of the "true 4K 120Hz" standard is: there is a 4K 120Hz high brush screen on the hardware, equipped with a decoding chip that can decode 4K+120Hz signals, and an HDMI2.1 interface that can receive and output full blood and support up to 48Gbit/s information transmission. In layman's terms, there is an interface for the film source to receive, a chip to decode, and a screen to display, all three are indispensable, and any link without it cannot reach the true "4K 120Hz" standard.
The "fake 4K 120Hz" is to achieve the effect of "both beautiful and moist" through some means, in the case of a hard power in the three links mentioned above, but the result is that it cannot withstand the fine tasting after "saving costs".
Hard-pull frame rate loss of image quality
First of all, a simple science popularization, why is it not 130Hz but 144Hz above 120Hz? This is because the most common film and television frame rate is 24 frames, 120 and 144 are multiples of 24, and the essence of achieving high brushing is interpolation, and the frame rate that meets the 24 frame multiples can be smoother than the non-multiple frame rate when interpolating frames, that is, line by line "filling" the picture, and will not cause irregularities in the overall moving picture because of an extra frame.
The most common means of "fake 4K 120Hz" is to harden the panel without 120Hz quality to 120Hz by interpolating the frame. The initial "hard pull" frame rate is to use the interlaced scan screen fill frame rate method to achieve 120Hz high brush, that is to say, the original 1 second 120Hz picture is composed of 120P static map dynamic, after the use of interlaced scanning filling, there is actually only 60P, and there is no real sense of filling the picture frame by frame. If you have two 120Hz TVs in front of you, the 120Hz picture done by interlaced scanning will make you feel the "shaking" of the picture for the first time.
Intercept @ Zhihu - Fan Rice Ai Coke The comparison chart made by Teacher Fei let you feel it
Then interlaced scanning evolved to DLG technology, which essentially filled the picture with 120 frames per second, but from 24-120 frames that were originally filled with 96P different static frames, it became two frames inserted into the same 1P, and finally only 48P differentiated frames were made, doing "face work". It can be said that DLG technology solves the sense of shaking and stuttering brought about by interlaced frame repair, and achieves 120Hz while also losing the clarity of the picture, resulting in serious lack of detail, and the picture is pasty.
Still intercept @ Zhihu - Fan Rice Ai Coke The comparison chart made by Teacher Fei is felt by everyone
The chip is not strong and the decoding is incomplete
If you ask an ordinary consumer, 2022, let you buy a high-quality TV, what principles will you follow to choose? The answer is definitely good picture quality and sound quality! This answer is correct but not comprehensive enough, a high-quality TV should have no shortcomings, when you want to watch a blockbuster, smart control of the whole house, when you want to play "true 4K + 120Hz"...
If the panel and tuning of a TV determine the picture quality and sound quality, then a powerful chip is indeed the basis of "smart control of the whole house" and "true 4K+120Hz". Just like mobile phone chips, TV chips determine whether the TV operation is smooth, decide whether it is possible to decode the 4k chip source in full channel on the basis of 120Hz high brush, and so on. The so-called "fake 4K 120Hz" may be equipped with a "castrated version" chip that can decode the 4K 120Hz chip source on the video website, but may not be able to decode the high-quality film source from the hard disk.
For example, when you buy a TV that can't decode 4K 120Hz in full channels, you will find that the 4K 120Hz film and television resources on the website are really a "dead end" - watching a few is gone, when you think that the dozen T Blu-ray movies you have hidden can break the game, you will find that the TV cannot decode the contents of the hard disk, 120Hz becomes 60Hz, accompanied by blur and stuttering... The chip decoding ability is not strong, which is this experience of being "castrated".
HDMI 2.1 is very important for full blood
When a TV has a 4K 120Hz panel quality, it also has a powerful decoding chip, but it uses a "non-full blood" HDMI 2.1 interface, which is also an important reason for the "fake 4K 120Hz" experience, which is also the "thunder" that many game TV brands like to step on. Why, first of all, we have to understand the definition of the full-blood HDMI 2.1 interface: it can support a full-speed bandwidth of 48Gbps, and achieve the highest specification RGB signal transmission of 4:4:4.
Now many games, although 120Hz, are realized at the expense of image quality at the source, and the 4:4:4 RGB signal transmission actually shows that after a certain "4" becomes "2", or simply degrades the image quality. Therefore, in the game itself has not yet reached the "4K 120Hz era", the bloody HDMI 2.1 interface is not to blame.
But is 4K+120Hz just for the gaming experience? Absolutely not (pattern low, friend)! The 120Hz screen has long been practically used, and at that time, the game scene has not yet emerged, but last year, the new host was launched, and the HDMI2.1 interface was gradually popularized. Console games that truly support 4K 120Hz have not kept up with the pace for the time being, and now the main service of 4K+120Hz is the movie viewing experience. Therefore, the impact of HDMI2.1 interface residue is to watch movies at this stage, and play games later.
Therefore, the majority of consumers should pay attention to the fact that there was once a TV full of blood HDMI2.1 interface in front of you, and you ignored its importance, and you will regret it when the 4K 120Hz game is rolled out.
The 4K 120Hz era needs "honesty"
After nagging so much, everyone may have a preliminary understanding of 4K 120Hz, and also know some differences in "authenticity" 4K 120Hz, so which TVs do well in this regard, and which TVs do not do well? After the timeline is dialed to 2020, PS5, Xbox SeriesS/X and other sub-era game consoles are available, and game TVs that support 4K 120Hz have also come into being, but many of the main game TV models have their own problems.
For example, in 2020, the Sony X9000H, known as the game weapon and PS partner, has a blurrier image at 4K120hz signal than 4K60hz. However, in view of the fact that most of the games in the PS5 are mainly 4k 60Hz, so Sony X9000H is worthy of the title of "PS partner", but as a game console companion in the next era, 4K 120Hz is the only way, so in 2021, although the Sony J series TV is still equipped with MT5895 chip, it additionally empowers the XR quality chip to solve the problem of blurred picture.
Subsequently, under the actual test of many big coffee, it was found that the first wave of problems may be caused by the problems of MediaTek's MT9950 chip, and also involve other brands of TVs that use S900 series chips. For example, Xiaomi TV 6 Extreme Edition, OPPO S1, etc., in the real machine test of the @B Station Packet Review, the display effect of its 4K 120Hz in many scenarios is blurrier than that of 4K 60Hz, especially the display of the font is particularly lacking in "sharpness".
Time has returned to the present, and the 4K 120Hz experience has begun to be faced by many enterprises and channels. In 2021, Sony took the lead in jointly launching a 4K 120Hz game TV product with JD.com - Sony X91J. On the basis of the previous generation of sony X9000H on the 4K 120Hz display problem, the product optimizes the effect of the chip on the display quality, and adds a VRR variable refresh rate to automatically match the best frame rate display screen effect.
In fact, regarding the "rollover" of the initial 4K 120Hz experience, some companies chose to ignore it, some companies chose to silently upgrade to solve the problem, and some companies chose to face up to the complete 4K 120Hz experience that fundamentally brought about a complete 4K 120Hz experience, and unabashedly exposed all the benefits of the real 4K 120Hz to consumers.
This is to mention the first "all-channel high brush" as the main selling point skyworth A43 game TV. In this TV very clear 120Hz screen, chip decoding, signal transmission to the picture dynamic optimization of the four links, as well as full support for 4K 120Hz "full channel high brush" + "lossless clarity", compared with some of the information hidden need consumers to do enough homework to jump the pit of the product series, is undoubtedly a 4K 120Hz era should be frank.
Write at the end:
In fact, there is no real and false 4K 120Hz dispute, but the industry needs a standard to regulate the 4K 120Hz TV market, incomplete 4K 120Hz experience will bring too many regrets. Some people may be absolutely, they are not a gamer, so 4K 120Hz is still far from themselves, but the truth is just the opposite. For example, director Ang Lee's 4K 120Hz film "Twin Killers" brings a sense of clarity that has never been seen in traditional movies through a real flying car performance.
For example, the Creator Center on the B station has joined the 4K 120Hz projection video channel, and more and more mobile phones also support 4K 120Hz shooting, with the increase of creators, our ordinary consumers will soon be able to feel the charm of 4K 120Hz in visual experience. In this context, the author believes that the 4K 120Hz era has actually arrived, the so-called "fake 4K 120Hz" in the three links of acceptance, decoding, display "stealing and subtraction" Although the cost is well controlled, the price received by the consumer side is relatively cheap, but for consumers to be able to keep up with the future display era, this is by no means a long-term solution.