Sony A1 OLED TV evaluation: Dafa exactly where?
OFweek smart home network news: Many people may say, not on a TV? Is nothing more than watching a shadow and then listening to a sound, as for blowing so much? To give an inappropriate example, it is like having four people sharing and living together and having a three-in-three house. There is always a difference, and the difference is not small.
So, today we talked about why Sony's OLED Dafa is good.
Appearance: A body thickness of an iPhone7
From the front, it's a large, transparent screen that barely sees the presence of a border. Tian Xinghong, the chief creative director of Sony Creative Center's first studio, told Sina that the original intention of this TV design was to give the user an undisturbed experience.
In order to enhance the integrity of the front, Sony A1 also made a number of bold attempts, such as the brand Logo reduced, placed in the bottom left corner of the fuselage, the middle of the bottom part of the white light.
The thickness of the screen is also very thin, 65-inch level, thickness comparable to an Iphone7.
Behind the screen is a stand, which also contains subwoofers, TV consoles, and connectors. In addition, there are four screw holes in the waist for mounting on wall brackets. There is a switch in the upper left, which opens the rear bracket and returns it to the fuselage, which becomes a wall-hanging form.
For the aesthetic appearance of the TV design, Sony chose a dark gray fabric back cover, which is easy to disassemble and dirt-proof.
There is a physical power button on the right side of the bracket main unit. Under the power button is a hidden partition. After removal, a USB interface can be found to facilitate daily use.
The host computer includes cable TV signal interface, network port, optical audio output, 4 HDMI, 1 USB 2.0 and 1 USB 3.0, 3.5mm headphone jack. All the interfaces are hidden by the fabric back cover to solve the problem of chaos in the TV cable.
Write so much, it seems like I haven't said a single thing. Where is the speaker? The correct answer is that this TV has no speakers. Or it should be said that the whole screen is a speaker. The specific principle we wrote after finishing the picture quality and then elaborate.
Picture quality: To make food delicious, not only fresh ingredients but also good cooks
A1 is Sony's new OLED TV after a decade. In fact, as early as 2007, CES, Sony has led the industry to publish the world's first OLED TV. So what is OLED? In fact, it is a screen material, corresponding to the liquid crystal.
Simply put, we all know that white light is a mixture of light of different colors, and different wavelengths of light have different colors. The principle of liquid crystals is to provide white light with a backlight. The liquid crystal layer is equivalent to a layer of dice. If you want to display what color, put light of this part of the wavelength in the past.
The OLEDs are self-luminous materials. It is a tiny bunch of light bulbs that are clustered together. What color is needed to directly control the bulb adjustment is just fine.
In fact, in terms of the current technical limitations, both panels have their own advantages and disadvantages. And from a few years ago, Sony TV's crowded Sharp in the high-end TV field can see that on the quality of a TV picture quality, in addition to its own panel technology is the most basic factor, the panel's tuning, signal processing It is also an indispensable factor.
Sony's video production in the image analysis process up and down enough effort, this will have to talk in detail about the X1 advanced version of the image processing chip. He mainly has three major functions: HDR dynamic item-by-item remodeling technology, dual image database, and 14-bit smooth gradient technology.
In addition to the input signal processing, the X1 has a variety of built-in panel drivers. On the basis of these, there are more secondary analysis of the layer panel images. For example, if the screen can express brightness from 0 to 100, but the brightness of the input signal is 10 to 110, so that the 0 to 10 part becomes 10, and the part that exceeds 100 is changed. Into 100. If you count images back and forth, you will lose a lot of detail. The addition of the second analysis can solve this problem and reduce each brightness by 10 standards, so that the images displayed are more detailed and richer in detail.
In fact, even though 4K TVs have become popular, domestic 4K signals are still very few. Under the 4K signal, after each basic image processing, the display effect is quite satisfactory. The analysis and analysis of low-standard signals is the place where the gap is currently opened. First, let's talk about Sony's HDR dynamic itemization technology.
Before we say this, we have to talk briefly about what HDR is hot on TV recently. HDR is a new generation of gray standard proposed by SDR. To put it simply, for example, SDR is divided into about 5 levels from pure white to pure black, which are 3, 5, 7, 9, and 11 respectively. The HDR standard divides pure white to pure black into 15 levels, which are 1, 2, 3...15. Not only did the number of copies increase, but the total span also increased.
So what is the experience of traditional SDR signal input to HDR TV? The most obvious is the black in the SDR, which turns into a dark gray in HDR. As you can imagine, if you are watching the night scene on TV, the night sky is dark gray and there will be more drama. On the general screen, it is basically the difference between the clear sky and 200 on the PM 2.5.
HDR dynamic item-by-item reshaping technology can detect and analyze each object in the frame frame by frame and give the best optimization algorithm. After optimizing the details in each frame of image, the image engine performs HDR shading adjustment according to the overall contrast of the frame. After two rounds of optimization and remodeling, the image shows not only the brightness and darkness of the detail part is more true, but also the overall macroscopic level can show even better light and shadow effects and contrast of light and darkness, gradual change of light intensity and even halo performance. This is included in the traditional TV. It is difficult to achieve on ordinary HDR TV.
For the traditional SDR signal grayscale grading, equal stretching to the HDR level, that is, the original dark gray pulled pure black, and then processing different brightness in order to make the image visual experience closer to what the signal originally wanted to express. Especially the night sky, contrast between light and darkness, light intensity, and halo will be more vivid.
The dual image database is one of the souls of Sony's image processing technology and is mainly used for noise reduction processing. Compared with Sony's past noise reduction technology, this technology can realize the recognition of different elements in the image, such as foreground and background, and compare and reduce the noise through a huge image database.
Many videos, even if the resolution has reached the 4K level, but in fact, in the collection, due to equipment problems, noise may appear in the image, such as when using a mobile phone to shoot the night scene, the sky will appear inconsistent color points.
Sony's X1 chip can automatically determine which points are noises that should be smeared out, and which points are the object details that should be retained. For example, in a bird flying in the sky, the system will smear the discordant colors of the sky and preserve different colors of bird feathers.
In simple terms, Sony will compare the changes in the front and back images to determine which are the main objects and the background in the analysis image. After that, the background will be processed with excessive smoothing of the image and objects in the foreground will be sharpened. The result of this is that the main objects in the image are clearer and the background is relatively blurry to contrast the subject. It is somewhat similar to the background blur effect of large aperture in photography, so that the dynamic image is also more layered.
The last is a 4K HDR 14-bit smooth gradient. Many people have had the experience of seeing a noticeable color gamut on the screen of a television screen. The main reason is not that the color expression of the screen is not enough, but the lack of color management capabilities behind it. The 4K HDR 14-bit smooth gradation technology analyzes the image frame by frame and performs 14-bit smoothing of the image to fully optimize the gradation and achieve a lower gradation, which means a more natural color transition.
This is particularly evident in the evening video. Taking the example of the rainbow, most televisions display even clear lines between rainbow red, orange, yellow, green, blue, and purple. On the screen using the X1 advanced version, the rainbow is a very natural transition.
On paper, we talked a lot and we actually took the test chart to talk about it.
The first is color reproduction, except that there is a slight deviation between yellow and green, the rest of the color transition is a standard isosceles triangle, and the color reproduction is accurate.
Followed by clarity, whether it is Chinese or English, black on white or black on white, point or surface can be clearly displayed.
Finally, the gray scale test, in the case of light colors, can basically restore the 254, while the black is surprising, the basic 12 and pure black is difficult to distinguish.
But this is actually just the HDR optimization mentioned above. In bright mode, light pollution and noise are inevitable in the night sky. In order to make the night sky purer, Sony chose to darken the gray level of the next level directly, making the night more pure.
While adjusting the image mode to user-defined, you can see that the final black can be displayed to the level of 2, it can be said that Lao Yang has evaluated the most powerful performance of so many TVs.
Sound quality articles: What is the black technology of the exclusive screen sound field technology?
When we talk about picture quality, we think of sound quality. The essence of sound is the wave produced by the vibration of an object. Other TVs use a sound unit to shake, and Sony of Black Technology directly changes the vibration source from the speaker to the screen.
Sony named the technology Acoustic Surface, which is called screen speaker technology.
As described above, it is known that the structure of the liquid crystal is relatively complicated, and the vibration affects the deflection of the liquid crystal molecules. Therefore, the technology of generating sound by screen vibration can only be applied to OLEDs with a relatively simple structure.
Acoustic Surface simply speaking, is the use of left and right vibration sources, traction screen vibration. In this way, the spatial sense of the sound will be greatly improved compared to the speaker integrated on the television or the SoundBar alone. You can clearly feel that the sound is coming from the direction of the screen to you, not from a narrow area.
However, it is not difficult to make the screen sound, so it sounds like a complicated question. Just explained the advantages of the screen directly vibrating sound from the principle. But a screen, but also to ensure the sense of direction of the sound, this is a more difficult problem. Sony's first screen-sounding technology is applied to large-screen televisions. With the subwoofer device in the A1 bracket, the TV sound has a strong sense of space.
Sony uses two sets of vibration sources, one for the other, to work together to achieve the sensation of the left and right channels. For example, a truck moves from the left side to the right side of the screen. The sound should also come out from the left side and gradually move to the right side of the screen. This is the sense of direction of the sound, this product has been perfectly resolved. But two groups of vibration sources, how to solve the mutual interference on the same screen, this belongs to the stage of commercial confidentiality.
Will frequent vibrations affect the screen? Sony’s engineers stated that they have undergone a lot of experimentation without any problems. Moreover, the physical properties of the OLED panel are fixed, and it is hardly affected by vibration.
So this TV, on a different material shape of the table, will affect the sound quality it? Theoretically there will be, but the actual experience of the human ear can not distinguish basically. Because the attenuation is very large during the transmission of vibration from the screen to the second medium, the transmitted wave is basically a sound wave that cannot be recognized by the human ear.
In fact, in addition to the screen to achieve a two-channel, subwoofer in the backplane bracket, in fact, A1 has a 2.1-channel configuration, which is behind Sony's strong audio strength and technology accumulation as a support.
From the actual experience, because most of the TV's impressions are placed at the bottom of the screen, or separated from the screen. So you can clearly feel the direction of the source of the sound. Sony's product, the sound is directly from the "image", gives a person feel more close to life, and because the entire screen as a diaphragm, the sound of the radiation surface is also more extensive.
Content: From Movies to Games
A1 uses a native Android system. Since the development of Android, Caton has long been a problem. Sony's system is also very smooth.
The first screen waterfall flow is divided into four areas: recommendation, source, original app, third-party app, game and setting.
The first is the recommended area, where guides, popular movies, etc., which are included in the use of televisions, will be pushed. When you turn on the computer for the first time, Sony will teach you how to set up a set-top box, how to download third-party applications, and how to transfer pictures and videos from your phone to your TV.
The second field is the source selection, which can be switched between four HDMI and cable TV.
The third column is the system's own applications, such as music, photo albums, video, Android basic functions do not have to introduce. In addition, set-top box settings, mobile computer image projection, etc. are also here.
In recent years, television is no longer a device that simply displays input signals. With the cross-platform development of content, more and more users have now directly used the TV's built-in applications to watch resources. Some young people no longer even purchase local TV services. So content is also an important point of competition among manufacturers.
In terms of video, Sony chose to cooperate with Wah TV, and mainstream movies, TV dramas and other video resources can meet user needs.
In terms of music, TV built two QQ music, multi-meter music, is still more conscience. Most of the content on the market can be heard almost freely, regardless of fees.
About the program guide this App to say a few more. This app, developed by Sony, provides program listings and appointment reminders for each different TV signal. At the same time, it is also possible to download supporting applications on mobile phones to realize the function of turning a smart phone into a remote controller, which is even better than many domestic manufacturers.
In terms of games, after all, Sony has its own hot PlayStation, game enthusiasts can experience more immersive and realistic game experience with powerful performance of 4K game screens.
The fifth column is the application store and third-party applications. Whether you use the U disk to install or download and install games in the application store will appear here.
The last is the setting bar. There is no need to introduce more.
In general, in terms of software, it can be seen that Sony is making efforts to localize content transformation. The basic domestic other smart TVs are not bad.
However, some applications directly hold the third leg of the thigh, more or less to make the software experience is not uniform. Take the simplest example, such as different application icons, internal UI and operation logic are more or less different.
to sum up
Although the official has not yet determined, but from this TV exhausted Sony display technology all over the place, how prices have to be more than the current Internet TV 0.
Sony's current positioning of its own products is not a low price. It is precisely because the rising middle class and even the elite class, consumer demand is also more diverse, from the cost of consumer spending more tend to the value of consumption, Sony China Chairman Gao Qiaoyang told Sina that China has a lot of different consumption For some consumers, cost-effectiveness is a decisive factor. The other part of consumers is not only concerned about cost-effectiveness, but will pay more attention to the performance of the product for sound quality.
He believes that with the development of China's economy and the upgrading of consumption, there will be more and more consumers in the latter category in the Chinese market. From the earnings reports of Sony in recent quarters, it can be seen that the decision to provide high-end products for these consumers has achieved initial success. Sony will continue to maintain this strategy and focus on providing high-end products. Last year, Sony flagship TV Z9D won the "Hurun Report" best performance award, also reflects the recognition and favor of elite products for Sony products. Finance Channel Wu Xiaobo also stated that it was Sony's 1% investment in the top of the product's performance. It also became a brand's differentiated competitive advantage. The extra 1% of this product is exactly what the middle class is willing to spend twice as much. Go to buy a life experience.
As far as the product itself is concerned, in terms of hardware, the industrial design, picture quality, and sound quality are basically impeccable top standards.
In terms of content, from the development of software to system logic, Sony still regards the main function of television as the input signal. It can be seen that Sony is doing localization as much as possible. Although it is not perfect, after all, A1 is an Android system. It is not difficult to install a third-party app. Especially in the Internet environment like Celestial.
Original Electronics Technology (Suzhou) Co., Ltd. , https://www.original-te.com