The first appearance of the Xiaomi TV 4 was at this year's CES Consumer Electronics Show. After being exhibited, it was shocked to see all the blemishes on the scene. As a result, everyone’s expression was such a guilt.
There are 10,000 666 hearts in your heart...
Millet TV 4 is so eye-catching because of its thin body, its thickness of only 4.9mm, is the thinnest TV so far.
Of course, no one has seen the world, as early as two years ago (2015), Sony has launched a thin 4.9mm TV X9000C, priced as high as 29,999 yuan.
However, the launch of Xiaomi TV still made a few surprises for these gang nuts. They probably did not expect that domestic manufacturers could also create such a thin TV.
If you are a technology house, after you have read the expression packs, you will think of a problem. How did Xiaomi make TV so thin?
In general, there are two main reasons to make a TV thin: one is the side emitting LED backlight, and the other is to reduce the thickness of the light guide plate.
Since the LCD TV screen itself does not emit light, the LCD screen must have a backlight for rendering the image. Currently, LCD TVs mainly have two types of direct backlighting and side-in backlighting.
Direct-type LED backlight structure
Side-entry LED backlight structure
As can be seen from the above two figures, the edge-type backlight structure does not require the configuration of an LED light bulb under the liquid crystal panel, which can significantly reduce the overall thickness of the screen, thereby creating a thinner television.
Then the problem is, put the LED bulbs on the side, how to ensure that the light emitted by it is uniform? This requires the use of a light guide. Its function is to evenly spread the light from the backlight.
In the past, the light guide plate was made of acrylic material. The plastic light guide plate was easily distorted or expanded due to heat, so the fixed frame was required to be fixed, and this increased the thickness.
Millet TV 4 uses an MS light guide plate. After using this material, the thickness of the light guide plate will be reduced by more than 75%. This is the reason why Xiaomi TV 4 is so thin.
After reading the expression package, the technology also understands. It is questionable. Will Xiaomi sacrifice anything for thinness? Please see the detailed evaluation below.
Second, the design: 4.9mm thin as a coin
äº§å“ Product label on the side of the box: The millet TV 4 model is L55MB-AB, the screen diagonal length is 1403.85mm, and the standard 55-inch 16:9 screen size.
↑↑↑ Millet TV 4 mounting slot, the tripod protrusion of the inner ring is fool-proof design, corresponding to the triangular notch on the bracket.
↑↑↑ Installation is very simple, two screws on each bracket can be fixed.
↑↑↑ Millet TV 4 uses the original Samsung IPS 4K screen, the display effect is delicate, natural full color.
↑↑↑ 55-inch screen with narrow border design less than 1cm, after the screen has a full-screen visual effect.
↑↑↑ millet TV 4 frame made of aluminum alloy material, but also made a symmetrical CNC bevel cutting process, with blue stripes embellishment, creating a kind of "thin as a coin" illusion, but also make it look fine less.
Of course, although it is not as thin as a dollar coin (a coin thickness of 1.85mm), the thickness of 4.9mm is already the top level in current television.
For the "thinness" of Xiaomi TV 4, please feel it.
The low-profile embossed logo of Xiaomi's logo is not visible in the middle of the bottom middle frame so that the user can focus more on the screen.
The back of the millet TV 4 has a similarity with the millet TV 3, but it does not use a split design. Instead, the computing components are directly concentrated in the lower area of ​​the back of the camera. The upper part is only the screen. , thus freeing up space for the "thin" design.
The upper part of the back of the millet TV 4 is a whole metal brushed plate, which ensures the quality and exquisite workmanship.
The lower interface is in an L-shaped layout, which is exactly the same as the millet TV 3S design.
The horizontal ports are TV, S/PDIF, AV input, and network cable jacks from left to right
The vertical row of interfaces includes three HDMI, one USB 3.0 and one USB 2.0, which is exactly the same as the layout of the Xiaomi TV 3S.
Like the previous generation, the Xiaomi TV 4's stand also uses the imitating dendritic design. The metal material, artistic sense and texture are the same.
é¥æŽ§ Millet TV 4 comes with a remote control: There is a voice button below the off button.
Third, the screen: Samsung original 4K screen to restore the true color
As a display device, the screen is its most important part.
The 55-inch version of the millet TV 4 uses an original Samsung IPS screen with a resolution of 3840×2160 and a total of 8.26 million pixels.
Here we use the security Bunny on this screen for solid color and color scale testing.
↑↑↑ 55-inch millet TV 4 is like a pure screen in pure black background, there is no grayish phenomenon.
↑↑↑ Millet TV 4 restores the same color for different color values, with a natural transition. The lightest and darkest of them both maintain a certain degree of color, and they are not overly white and black.
Fourth, quality: 4K + HDR display delicate
About three years ago, 4K was still a patent for a large company such as Sony and Samsung, and a toy for the rich. Nowadays, with the advancement of panel manufacturing technology, 4K televisions have rapidly become popular and become the standard for mid-to-high end television products. The price is no longer out of reach. Everyone can afford a 4K TV.
Millet TV 4 continues the consistent "high cost" strategy, in addition to 4.9mm ultra-thin body, 4K picture quality is a highlight of the aircraft.
↑↑↑ We have compared the display effect of 55-inch millet TV 4 and 48-inch millet TV 3S in the same picture. The picture above shows the display screen of Xiaomi TV 4.
The picture above shows the display effect of the millet TV 3S with 1080P display.
It is clear from the comparison that the millet TV with 4K resolution has more dense 4 pixels, and the font edges are delicate and smooth. The millet TV 3S's pixels are sparse and the fonts show a flashing phenomenon.
In the actual 4K video playback test session, we used the classic "beauty and roast duck" test video to play, and the final result was satisfactory.
Millet TV 4 is very smooth for decoding and playing 4K content, bright colors and rich picture details. The eyelashes on the girl's eyes and the steam on the steamed fish can be seen very clearly.
In fact, the 55-inch millet TV 4 can present eye-catching pictures. In addition to 4K ultra-high-definition resolution, HDR high-definition picture quality technology is also one of the heroes.
HDR is called High-Dynamic Range, which is a high dynamic range image technology. Before this technology was applied to photography, we often hear that turning on HDR during the shooting process can make the original dark scene brighter and more transparent. This technology has been applied to home television.
The range of brightness that traditional TVs can exhibit is extremely limited, and it is far from the range that people can perceive. The reason is that the brightness of the traditional TV in the bright picture can not be put up, and the dark place will not come down. Caused by the human eye is ultimately perceived as a poor sense of the level of the picture, a large number of details are lost.
The HDR super picture display technology was born to solve this problem.
Smart TVs equipped with HDR technology can expand the dynamic range of brightness and provide a picture that is similar to the dynamic range that human eyes can perceive, resulting in a more realistic and outstanding picture quality.
The core of TV HDR technology is to improve the brightness of the screen and control the brightness of the dark part of the screen, thereby enhancing the contrast between dark and bright images, highlighting details such as dark, bright chromatograms, and shadows.
↑↑↑ Xiaomi TV 4 supports HDR high-definition video quality technology, and the quality improvement it brings is intuitive, even ordinary viewers can distinguish with the naked eye.
Overall, the screen of Xiaomi TV 4 is almost impeccable. The close-up viewing is still clear and detailed. The vividness of color is just right. It is not too distorted and distorted. The overall visual experience is “likeâ€.
Five, software: full video format support voice assistant a key to find the film
The system is the soul of television. A good system determines whether this TV has a good user experience. Since Millet's 2nd generation smart TV system "PatchWall puzzle wall" was released, all Xiaomi TVs are equipped with this system.
The display of large square tile icons, movies, dramas, and variety shows is very intuitive and easy to use.
In addition, Xiaomi TV 4 has also joined the "artificial intelligence" technology, can learn the user's habits and preferences, and in order to recommend the user may be interested in the content, to achieve private customization.
·Main interface
↑↑↑ PatchWall puzzle wall UI only allows the user to scroll up and down to view the content. This avoids the messy feeling of scrolling horizontally and scrolling vertically for a while.
With the Amlogic T968 Cortex A53 quad-core 1.8GHz processor and 2GB of RAM, the scrolling of the entire UI is smooth, and the loading speed of each channel's picture in the 50M light environment is very fast, with almost no noticeable delay.
The PatchWall puzzle wall UI has planned contents including multiple channels of movies, TV shows, variety shows, VIPs, etc. Users can switch horizontally through the navigation bar at the top to quickly access the channels they want to watch.
·voice search
↑↑↑ If you are too lazy to look up, you can start the voice assistant on the remote control with one click. Like Xiaomi TV 4A, it can find all kinds of videos for users through voice fuzzy search. For example: “The most recent popular movieâ€, “The drama starring Chen Dao Mingâ€, etc. It also supports weather and other queries, and controls the switch machine. , volume adjustment, TV program selection, and so on.
Of course, you can also make it a bit difficult for you. When you say "Deng Chao's wife's movie," the system automatically retrieves the videos of Sun Hao.
However, voice search does not support search applications and cannot be used in third-party applications.
For example, if you install a third-party video app such as Tencent video, the voice assistant will not find this app. You cannot use the voice assistant to search for videos in the Tencent Video App, and you need to manually enter the search video resource.
· Install third-party apps
↑↑↑ Xiaomi TV 4 supports the installation of third-party apps. In addition to installing apps in official stores, it can also install third-party app stores where they can find the necessary resources.
In the actual use process, the third-party App does not appear to be splashing, staging, or flashback when it starts or exits, indicating that the compatibility of this system with third-party apps is still quite reliable.
In addition, Xiaomi TV 4 also has a built-in local player. We used video test tools to test the video format compatibility.
· Format support
↑↑↑ After testing, the player comes with the Caton phenomenon when playing the video in the above three formats. The other formats are smooth playback without stress.
You can't help but control the 4K video.
Sixth, resources: 100 video sites + four luxury license line-up
For Internet TV, the richness of content is the withdrawal of product's soft power. As early as March of this year, millet TV 3S debuted, the official announced a content upgrade plan.
At present, Xiaomi TV has reached content cooperation with iQIYI and collected content from the four major licensees of GITV, iCNTV (China Internet TV), Hua Digital TV and Mango TV. The resources are abundant.
Millet TV 4 included video and audio content resources from 100 video sites and four licensees.
↑↑↑ Popular videos can be found here
Not only does it have free video resources, Xiaomi TV 4 also specializes in creating paid VIP channels.
↑↑↑ The purchase of Xiaomi TV membership card not only allows you to watch VIP video resources on Xiaomi's TV for free, but you can also enjoy VIP treatment on iQiyi's platform, which means you spend a dollar to watch the content of both platforms.
Seven, performance: Amlogic T969 blessing
Millet TV 4 equipped with Amlogic T968 Cortex A53 1.8GHz quad-core processor, integrated Mali-T830 MP2 750MHz graphics processing unit, built-in 2GB DDR3 dual channel memory and 8GB flash memory.
Below we use the security version of Bunny TV test tool to run its sub-test.
↑↑↑ We used Ann Bunny to test the hardware performance of Xiaomi TV 4 and the final score was 38,366.
From the rankings, we can see that this is the top three position in the current smart TV. Among them, the CPU scores 12946 points and the memory score has 4793 points, all ranking at the same level, and it has not become the bottleneck of performance.
机身 The fuselage configuration information actually detected by the security rabbit is consistent with the official promotion. In terms of body storage, the default usable space is 4.95GB, and the remaining memory is about 1GB up and down after booting. Can meet the fast switching of UI, quick start of APP and fast buffering requirements of online video.
In fact, although the 55-inch Xiaomi TV 4 is equipped with this hardware, it still has a Caton situation in its default game performance test. The reason for this is the 4K resolution.
However, the need for users to use TVs to play large-scale games is obviously much weaker than that of mobile phones, computers, etc. The current properties of televisions are still relatively monotonous, and video playback is the main content of their work. Therefore, the limit test in the security bun scene is almost used in daily use. Not to.
Eight, power consumption: TV also has a power-saving mode
TV as the core of the living room appliances, daily use frequency and time are quite long, 55-inch 4K such specifications on the power control how?
The side of the ↑↑↑55-inch millet TV 4 box contains a Chinese energy efficiency label, which belongs to Class 3 power consumption. As a large-screen 4K TV, this rating is expected.
The nameplate on the back of the Xiaomi TV 4 shows that the aircraft's power consumption is 155W.
Here we will perform a series of power consumption tests on the scenarios.
↑↑↑ In the off state, the power consumption of the 55-inch millet TV 4 is displayed as 0. There is no power steal.
↑↑↑ When the camera is turned on, the backlight brightness is set to 100% and the power reaches 121.6W.
功耗 After adjusting the brightness to 50%, the power consumption drops randomly to 73W
In addition to restarting, shutting down, and delaying shutdown, Xiaomi TV 4 also has a screen-off mode. This mode is equivalent to the power-saving mode on mobile phones. It is just a screen shutdown and the system is still running.
For this model, we also conducted a power test.
In the off screen mode, the power consumption is only 7.3W
When the 4K video is played locally, the measured power consumption of the millet TV 4 is 123.7W, which is not much different from the power consumption in the standby state.
Through tests, it has been found that video playback and volume levels have minimal impact on power consumption. The main factor affecting power consumption is the screen brightness. Therefore, it is recommended that if you do not watch TV, it is best to turn off the screen or power off to save power.
Nine, summing up: the most comprehensive millet television so far
Two years ago (2015), Xiaomi TV 2S officially unveiled. Lei Jun said proudly at the press conference that it was only 9.9mm thick.
In the same year, Sony released a TV X9000C that is as thin as 4.9mm.
Although the difference between 4.9mm and 9.9mm is only 5mm, it is a gap between our fingers, but it is a world of difference.
This difference is like Su Bingtian and Bolt, although the difference between the two of them is only 0.41 seconds. It's just a blink of an eye, but it may be difficult to achieve for the rest of their lives. (In fact, Su Bingtian is already the “extreme†of Asians. He is the first An Asian who ran into the 10 second mark).
Fortunately for now, Xiaomi TV 4 is also 4.9mm thick. Although it was two years late, Xiaomi TV 4 witnessed the changes made by Xiaomi.
Of course, thinness is not just a manifestation of strength and sentiment. When you have such a TV, it will allow you to have a great deal of space in the renovation. He will no longer be a TV, but an artwork in your home.
Not only is the visual beauty of 4.9mm, Xiaomi TV 4 hangs on the wall only 48mm away from the wall, so that the TV can really hang on the wall in a suspended form.
Although a lot of thin, but the quality of the millet TV has not shrunk. 4K, HDR and other flagship configurations are available, and the advantages of 4K HDR can be maximized through the excellent quality of Samsung's original panels and optimization of image colors, contrast, and sharpness.
In addition, thanks to the support of 4K screen and Dolby sound, the sound experience during the viewing is guaranteed, and some highly dynamic pictures can also be easily controlled. Although the sound is better than the professional independent release, but from the TV itself The speaker's appearance is excellent, of course, if you want to set up a home theater, it is recommended to support independent stereo extroverts.
In terms of scalability, Xiaomi TV 4 provides three HDMI and two USB interfaces (including a USB 3.0) in addition to the regular S-Video, AV interface, and audio interface. Its purpose is very clear. It is to serve HD and Ultra HD. .
At the same time, the system's own player has also achieved full-format, full-definition support. Users who like to watch local HD video and Ultra HD content do not need to worry about playback compatibility issues.
In terms of online content, Xiaomi TV 4 brings together content from 100 video sites and the four major camera parties of GITV, iCNTV, China TV, and Mango TV. Rich in content, all kinds of American dramas, Korean dramas, movies, and variety shows are updated quickly and fully meet daily needs.
Having said so much, the topic will eventually fall to a worthwhile purchase. Next we take a look at the value of Millet TV 4 is not worth buying.
Currently in the field of LCD TVs, manufacturers that can make TVs 4.9mm thick, in addition to Sony, there are two domestic Internet companies Xiaomi and micro whale.
They are the micro whale intoxicating thin A series and the millet TV 4 .
↑↑↑ By comparison, we can see that the same 55-inch version of the Micro-Drunk A Series surpassed the Xiaomi TV 4 in terms of thickness and hardware configuration, but the price of up to 8,999 yuan was more than twice that of the Xiaomi TV 4. .
It can be seen that compared with competing products, Xiaomi TV 4 has a more competitive price, less than half of competing products.
Then the question is, the same is 4.9mm. Who will you choose for Xiaomi and Xiao Wei?
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