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We experienced the first Samsung 8K TV, is it really no different from 4K?

via:博客园     time:2019/3/15 20:34:13     readed:279

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8K resolution, oversized, new panel, AI technology … … After 2019, TV manufacturers have found a new breakthrough after 4K and HDR. The bigger and clearer is still the core of this upgrade.

This phenomenon will be more obvious at this year's AWE China Home Appliances and Consumer Electronics Expo. Almost every TV manufacturer participating in the show will hang 8K. The digital changes are clearly easy to understand, and the resolution has once again become a propaganda strategy for TV manufacturers.

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Samsung, from the second half of last year, tried to bring the new 8K TV series Q900R into the consumer market. This new ultra-high-resolution TV category seems to have only broken through the limits of the naked eye, but there are still many hidden potentials. Variety.

8K content issues, Samsung hopes to solve through artificial intelligence

Relying on a new selling point to drive user updates is the rhythm of the TV industry's development over the years, but users always have a question, "Is there something to watch?"

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Samsung's current solution is to use AI and machine learning technology to upgrade the video content of SD, FHD, UHD/4K and other resolutions to nearly 8K quality. It is also a means of saving the country. It also solves the user's doubts about the 8K source.

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In the beginning, I understand that this technique is similar to an "interpolation algorithm." For example, the "board rendering" technology used in the PS4 Pro game console is to interpolate low-resolution images into high-resolution images by means of pixel filling and rendering. Although nominally not true 4K, the picture effect will still be better than 1080p and 2K are better.

But this time Samsung's "AI Image Enhancement" is not just a stretch of the resolution that is hard to detect by the naked eye. It has done a lot of back-end work on both the picture and the sound effects.

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According to Samsung's official introduction, this AI image enhancement technology relies on a database in the TV chip, which already contains analysis data for tens of thousands of images, so that AI can automatically map low-resolution images, Texture edges are processed instead of simply changing the resolution number.

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A set of contrast scenes was placed in this Samsung booth, with regular video on a 4K TV and AI-optimized content on a Samsung 8K TV. From the perspective of the scene, the color and brightness of the two are not small, such as the fine hair on the skin of the character or the texture of the scene, which will be more clearly displayed on the 8K TV.

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▲ Samsung's official comparison chart, 4K on the left and 8K optimized version on the right

In addition, the AI ​​algorithm also classifies the color, exposure, and brightness of the input image so that higher dynamic range and contrast can be achieved, and the layering of the object is more noticeable.

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▲ Samsung 8K TV built-in quantum dot processor

In addition to the video content, we also saw a feature called "AI Sound" that automatically adjusts the sound by analyzing the position of the TV in the room to reduce the sound loss or bass distortion caused by the spatial layout. Optimize effects for some sounds.

For example, when the TV plays the game, it will recognize the cheers of the audience, and when playing the concert program, it will also strengthen the high and low frequencies of the music to ensure the layering of the sound. The dual processing of image and sound requires the support of a powerful processor, which once again highlights the power of the Samsung TV chip.

Samsung's 8K TV doesn't just represent 33 megapixel resolution

Consumer-grade 8K TVs actually have products in the second half of 2018. By this time this year, it is no longer an unreachable technical term, but a new selling point that TV manufacturers have found for mass consumers this year. .

Since it is called 8K, as its name suggests, its screen resolution will reach 8K, which is 7680 x 4320 pixels. This means that each horizontal line on the screen covers approximately 8,000 pixels, the total number of pixels is four times that of a 4K TV and 16 times that of a 1080p TV.

The dense pixel arrangement further enhances the fineness of the picture, which is the highest quality TV screen you can experience today.

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From the design point of view, the four 8K TVs exhibited by Samsung this time, whether it is the screen border or the thickness of the whole machine, are comparable to the current mainstream flagship products, the base is also simple enough, most of the cables are also cleverly hidden in one In the hub.

In addition, an M-shaped groove is specially designed on the top of these TV backplanes to facilitate the storage of the base in the wall-mounted state. It is also a very intimate idea.

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▲ Most cables can be stored in a dedicated hub.

It is worth mentioning that this Samsung Q900R 8K TV uses a QLED panel with full array of direct-in backlight technology. In short, it can control the backlight more accurately and improve the contrast of the screen.

In addition, it also supports the HDR10+ standard previously launched by Samsung and Amazon. Compared to the previous HDR10, the biggest difference between the new HDR10+ is the addition of “Dynamic Tone Mapping”, which allows the TV to automatically adjust the brightness level on a scene-by-scene or frame-by-frame basis.

Another standard brought by the HDR10+ is to increase the brightness of the original 1000 nits to 4000 nits. This does not mean that the entire screen will become like a large lighting. It is mainly to make some scenes and objects that need high light more realistic, such as the neon lights in the street or the reflection of the sun on the car body. The brightness also increases the overall dynamic range.

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In terms of intelligent functions, Q900R also integrates Samsung's SAMSUNG Connect IoT platform and Bixby voice assistant, allowing TV to act as a control center and directly linked with a series of smart homes. It can also use voice to search for video content, TV programs, etc. .

Higher screen resolution, requiring a larger screen size to reflect

This Samsung Q900R series has released 8K TVs of four sizes of 65, 75, 82 and 98 inches. The reason why there are no models below 60 inches is also related to 8K.

We all know that the human eye has a limited resolution, and the distance to watch TV in the home environment has been fixed, so whether you can feel the difference between 8K and 4K, and 4K and 1080P, the key is the screen size.

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Previously, American engineerCarlton BaleGiven the corresponding quantitative data, he said that in the same line-of-sight environment, if you want to buy a larger TV, then the resolution is also inevitable; if the size is consistent, the user only stands closer In order to detect the difference between two different resolution images.

But obviously, no one wants to stare at a screen at a close distance, let alone a TV that plays a family leisure and entertainment center.

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The Samsung staff at the scene also explained to us that the reason why Samsung did not provide a small size 8K TV was to consider the visual perception.

If you say that the 8K TV continues to be the same size as the 4K TV, the difference between the two depends on the distance of the eyes from the screen; but when you stand in front of the 82 or even 98-inch TV, the 8K resolution improves the picture detail. And the improvement of immersion is obvious.

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For this reason, the screen size is actually a key indicator for 8K TV, and the main push for large-size TV is also one of Samsung's current marketing strategies.

According to official Samsung data, Samsung has only four of its 10 TV models launched in 2017, but it has doubled in 2018.

At the same time, according to IHS Markit's analysis, Samsung has already accounted for more than half of the market in terms of shipments of more than 75 inches of TV in the world in 2018. This may also explain why Samsung focused on 8K TV this year.

Does the 8K TV really make no sense?

Consumers' pursuit of display screens has always been inseparable from the three core words of "bigger, lighter, clearer". When we are used to the high-resolution smartphone screen, we are actually pushing the TV in disguise. Size and resolution upgrades.

Therefore, whether it is from 1080p to 4K or 4K to 8K, the new technology is a natural evolution from the laboratory to the commercial. The size and high resolution are mutually complementary, but now the upgrade speed is much higher than many people expected. It’s going to be a lot faster.

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The document triggered by the Ministry of Industry and Information Technology at the beginning of this year.Ultra HD Video Industry Development Action Plan (2019-2022)According to the report, as of 2018, China’s 4K TV sales have reached 69%, and the penetration rate has reached 70%. After the full popularity of 4K TV in the next two or three years, 8K TV will undoubtedly become a new one. Direction of development.

At the same time, upstream content production has begun to invest. For example, in the upcoming 2020 Tokyo Olympic Games, in order to achieve full 8K level broadcast, NHK TV station is currently experimenting with 8K content playback in the channel, and NHK photographers also said that the content recorded by 8K technology is more conducive to post-editing and Zoom in, which is especially important in sports events.

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In fact, most people questioned that "the difference between 8K and 4K can't be distinguished by the naked eye." It was discussed a few years ago when FHD was upgraded to the 4K era, but now when we talk about 4K, we no longer feel that this is An empty talk.

Today, most video sites and streaming service providers like Netflix have adopted 4K as one of the content standards, and even smartphones are beginning to support 4K video. It is clear that 8K is about to go through such a stage.

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On the other hand, 8K technology also exerts its technical advantages in some professional fields. For example, in medical applications, doctors may not be able to see the parts with the naked eye when performing surgery, and 8K imaging technology can present a clearer picture, which is also helping doctors to perform better surgical operations.

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Don't forget that there is a 5G network, which will undoubtedly become a key node from the 4K to the 8K era. In the faster access speed and larger bandwidth environment, video content presentation and even shooting will be Welcome innovation, 8K TV may be more popular.

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All in all, as the leader in the TV industry, Samsung is still valuable in the field of high-end TV products. After all, if workers want to do something good, they must first sharpen their tools. Since the problems at the hardware level have been solved, the subsequent production and distribution of the entire 8K content will also follow the momentum.

After all, who wouldn't want to see a higher-definition world?

Title: Samsung 8K TV

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