What is the picture quality? Sony Z9D flagship TV depth evaluation

How far is the distance between virtual image and real vision? Being able to see a real world on television screens is the ultimate appeal of countless TV people. From the earliest days of the television, the "black-and-white dice" that flicked two big dice, to the big color TV that occupies the theme of our memories. From the short-lived rear projection, plasma to the liquid crystal with the highest penetration rate today, the emerging Quantum Dots and OLEDs also began to enjoy a share in the market. The reason why television has always been in the process of upgrading and evolution is to make people see pictures that are closer to reality.
But I don't know when it started. The "picture quality", the most important measure for television, seems to be less important. Due to the strong impact of Internet thinking, more companies began blindly pursuing content resources, online services, and admiring those that are said to be superb but show little improvement. They are good at fighting price wars. Although this can allow more people to experience large-screen televisions, the situation of “debt wins” also makes it difficult to see how the future of television will go. However, no matter how the times change, the industry will no longer be impetuous, and there will always be people who calm down and work hard. The person standing out today is called "Sony."
Sony, the 70-year-old brand has always played an extremely important role in the history of television development. As a brand that was imported into the country early, it also left a deep impression on the people. Sony TV has always been synonymous with high quality, from the very beginning of Trinitron, to the first mass production of professional 4K OLED master monitor BVM-X300, to BRAVIA series of brilliant, has always been highly end users The sought after object. However, in the current high-end television field, there is an urgent need for a product that can become a classic. At this time, Sony brought Z9D, a TV product integrating all its cutting-edge technology, and once again revitalized the “Sony Dafa”.
Sony's Z9D TV series is neither a quantum dot on a liquid crystal basis nor a self-illuminating OLED. It is still a LCD TV. Sony's purpose this time is simple, and LCD is the ultimate! Sony Z9D series has a total of three sizes, 65 inches, 75 inches and 100 inches. Recently, the 65-inch Z9D TV has also come to the online evaluation room of Zhongguancun. We will take a look at the performance of this Sony's strongest flagship TV in the most detailed test and experience.

· Appreciation: minimalist and low-key design language

The Z9D series TV is the flagship television product that Sony has high hopes for this year. Naturally, it will not be sloppy in industrial design. The overall design language adhering to the minimalist concept, work materials do not need to say, quite "Sony TV" demeanor. We all know that Sony's TV products are usually relatively pure in appearance, without any extra embellishments, and show the beauty of the TV itself. And seeing the 65-inch Z9D is no exception. Even if you don't see the Logo, you can probably guess that it is a Sony TV.
Under the low-key and minimalist appearance of Z9D, it is the pursuit of materials, details, and processing techniques. The border of the TV is made of metal materials, which shows the overall texture. At the same time, the color of the border is also used in the little gold on Sony TV. The combination of black and gold also gives the Z9D a sense of grace and luxury. At the same time, the 65-inch Z9D also has some very classic elements. For example, the bottom of the family-style breathing lights, with a floating susceptor, BRAVIA Logo, the overall look of Sony feel bursting.

· BacklightMaster Drive: Sony Black technology to reproduce

Although the word "black technology" has been overused, but for the Sony Z9D backlight system, the author can not help but sigh that this is the real "Sony black technology." You know, the quality of a TV depends on the panel, the quality chip and the backlight module (except OLED TVs), and the Sony Z9D's black technology is mainly reflected in the backlight module and the image quality chip, Sony The official name is "dynamic backlight system master version" and "X1 image processing chip advanced version." Although the name is only an upgrade, it has brought about a qualitative leap.
First of all, we should talk about the most important "dynamic backlight master version." LCD TV can not do without the backlight, which we all know, and the backlight is divided into two types: direct type and side type. Many high-end early high-end televisions use direct-lit backlights. However, in recent years, with the continuous development of side-entry backlights, side-entry backlights can theoretically be thinner. Therefore, side-in-line backlighting has almost become mainstream. Only a few high-end TVs will choose the direct type. The Sony Z9D TV uses a direct-type backlight, but this is not enough to prove it's extraordinary.
Traditionally, direct-lit backlight systems use backlight components in several areas, ranging from several partitions to as many as hundreds. The dynamic backlight master version is not divided into hundreds of areas, but each LED lights individually control the switch, in theory, how many LED lights, there are as many partition control! Sony Z9D's LED density has reached the highest level of the current industry, which can be said to be breaking through the limits of any TV in the past, reaching a staggering point.
At the same time, the LED backlight structure of the Dynamic Backlight Master Edition has also been redesigned. The new LED cluster structure allows light sources to converge at one point, which effectively solves the diffuse light reflection phenomenon that is easily generated by traditional LED backlights, and provides more accurate backlight control. Effectively reduce the common problem of LCD - light leakage. In addition to the LED lighting problem, Sony also completely solved the heat dissipation, LED particle unit control and overall efficiency management problems. It is believed that only manufacturers like Sony who have a rigorous pursuit of picture quality technology can create such epoch-making products.

· X1 image processing chip advanced version: more details are clearer

The image processing chip also has a great influence on the picture quality. Sony Z9D TV is equipped with a new upgraded version of the 4K HDR image processing chip X1. It carries out unprecedented precision repairs and optimizations in terms of color, sharpness, and HDR, resulting in better picture quality performance. This technology is mainly composed of HDR dynamic item-by-item remodeling technology, dual image database, and 4K HDR 14-bit smooth gradient technology.
The first thing to say is the “HDR dynamic reengineering” technology. HDR is a very fierce display technology that is being fired today. It has a high dynamic range and can display more details of highlights and shadows while bringing richer colors and more in-depth and natural details to the screen, thus making the TV screen closer to people. See you. We can find that if you don't mention HDR this year, you will be embarrassed to come up with new TVs. It is in this environment that HDR technology seems to have become a gimmick. There are very few products that can truly meet the HDR standard.
Sony's “HDR Dynamic Rebuild” technology can detect and analyze every object in the frame frame by frame and give the best optimization algorithm. After optimizing the details in each frame of the 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, contrast of light and shade, gradual change of light intensity, and even halo performance. It is difficult to achieve on ordinary HDR TV. Coupled with the technical blessing of Dynamic Backlight Master Edition, the Z9D's screen brightness is enough to throw off other TVs several streets.
"Dual Image Database" is one of the souls of Sony's image processing technology and is mainly used for noise reduction. 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 compares and reduces the noise through a huge image database. The effect is even more than the OLED TV known as the black field. The reason is that when the OLED TV lacks high-performance noise reduction processing technology, it is easy to display noise as an image signal, thereby affecting the performance of the dark part.
The third new technology of the X1 advanced chip is the "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. Sony 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 step difference, which means a more natural color transition.

Through the above detailed introduction, I believe we have learned two Sony Z9D killer, "dynamic backlight master version" and "X1 image processing engine X1 advanced version", these two black technology will TV picture quality to a new height , also brought a qualitative leap to the LCD TV. Here we look at the performance of the Sony Z9D through actual testing.

Objective Instrument Test: Color Performance Over the Strongest Quantum Dot TV

The instrument used in this test is the BM-7A luminance colorimeter produced by Topcon to measure the chromaticity coordinates of Sony Z9D TV in different colors, and calculate the contrast, color gamut, color temperature, and color saturation according to the corresponding values ​​and plot them. Corresponding color characteristics map and so on. Before carrying out this test, we first let the machine work normally for one hour and restore it to the factory mode. The entire test environment was performed in the darkroom.
After our actual testing, the NTSC color gamut of the Sony Z9D reached 96.61%, which is very impressive. Quantum-dot television has always been known for its color, to know that the best quantum dot-TV NTSC gamut is currently around 95%, and the Sony Z9D is higher than this. Of course, in rational terms, the color gamut is not necessarily the higher the better. Excessive color gamuts will look slightly uncomfortable to the eyes and the colors will be too saturated and bright, resulting in a very unnatural look. Sony has accumulated years of experience in color tuning, and after achieving such a high color gamut coverage, it is also not easy to display the colors in a true and natural manner.
In terms of static contrast, after a calculation, the Sony Z9D achieved a score of 7148:1, and it was able to achieve such a result by default. At the same time, black-box performance is always a pain for LCD TVs. However, thanks to Sony's Dynamic Backlight Master Edition, precise zonal control brings about a black field performance comparable to that of OLED TVs, and almost no light when rendering all black, which of course also brings higher static contrast.

At the same time, it is worth noting that the highest brightness we have achieved at the static brightness level has reached 702 nits. In fact, this result has reached an excellent standard, but Sony claims that the maximum brightness of the Z9D can reach a horrific 4000 nits. Of course, this is not Sony exaggerated lying, but it needs to be achieved under certain conditions, the condition is to have high-brightness HDR source test, we do not have such a source, so only test the highest static brightness. It is expected that the brightness of the Sony Z9D will be a multiple of static under HDR source with high brightness.
One problem with excessive brightness is power consumption, which means more power is wasted. However, the performance of Sony Z9D in the power consumption is quite satisfactory. In the screen settings, the user can adjust the brightness of the TV, we have divided the brightness into six files in the test, and it is gratifying that even at the maximum brightness, the Sony Z9D's power consumption is only 170.48W, this performance Can be accepted by more users. At the same time, we also specifically tested a brand of OLED TV products in this section, the power consumption between 150W-230W, slightly higher than the Sony Z9D.

·Local test: Renewed LCD high

Static picture test: color tuning is natural, the picture level is clear

In the local testing session, we tested static images, dynamic video, and HDR video. First of all, in the static picture test session, we selected three test images with 4K ultra-high resolution. Static pictures are very suitable for displaying picture layering, detail representation, and color accuracy. The following three test images are also very valuable for reference. Let's take a look at the performance of the Sony Z9D.
First of all, we can see from the first test picture that the presentation of the color is still very natural. It is more eye-pleasing to the eye, and the close-range and distant perspective are clear. The deer's hair is real. The second test picture mainly considers the ability to display details. The Sony Z9D did not disappoint us. The details of the texture on the animal were clearly displayed. There was no detail because of the gorgeous green color. The color was also accurate and the outline was clearly visible. The third picture has more details, and it also has higher requirements for the authenticity of the overall color. This screen also makes a true reduction. The accurate color reproduction of plants and scenery, the details are clearly visible, and the overall performance is excellent.

UHD video test: restore more details, brightness is truly visible

In the UHD video test session, we selected three test videos with 4K ultra HD resolution. This link is not only a consideration of the picture quality, but also a consideration of the fluency of local video playback. In the actual test, Sony Z9D TV did not appear any Caton's situation, open and close the video response quickly, which is a big test for TV hardware.
As for the picture quality, Sony Z9D brought us more surprises. In the first test video, there are many television screens that cannot restore the details of the wall. However, the Z9D clearly displays the lines on the wall. The picture is very real. This part also benefits from the high brightness of the TV. The second test picture further proves the importance of brightness. The sunlight reflects the real ambient light on the statue. Each line is clearly displayed and the picture is stunning. In the third test picture, the brightness of the sunlight has also been restored to the truest, the contrast between the light and the dark is clear, the lines on the animal body are also clearly visible, the green performance is precise, and the eyeball is pleased.

HDR video test: outstanding light and dark details, effective control of light leakage

As we mentioned before, HDR is a very hot display technology this year. In theory, HDR technology can effectively improve the brightness of the screen, the details of the dark parts, the sense of hierarchy, the color performance and the authenticity, but each TV maker has The control skills of different technologies are different, so the effects they bring are very different. Sony made great efforts to control the backlight, and at the same time, it developed a dynamic item-by-item remodeling technique for HDR. Let's take a look at the performance of the Sony Z9D in HDR video.
The most obvious effect brought by HDR technology is the details of brightness and shadows. From the first test video, we can see that the black field in the distance performs satisfactorily, and the lights on the tall buildings make the most real restoration, brighter The street lights will even have a dazzling feeling, let people experience the most real picture feelings. The second test video is the most capable of demonstrating HDR capability. The area with higher brightness on the left restores the real details and ambient light. The details in the dark part on the right are clear and the performance is excellent. The third test video is the most amazing, because in this video, there are many fragments of light passing through. When the scene is displayed, the Z9D's screen will emit dazzling light, making people feel like they are on the screen. I feel quite deep.

·System and content: Reinforce its own short board

Operating System: easy to use, clear at a glance

Sony Black Technology has always been reflected in the quality or core technology, but the TV operating system design has always been not Sony's strengths, and even became its short board. To be frank, joint venture brands are often overstretched for TV UI design. Samsung, LG, and Sony, among others, are often unable to meet the Chinese people's habits of using UI design. The cost of learning is relatively high. They usually adapt after a certain period of use. The operating system of the Sony Z9D has greatly improved over the past.
This television operating system is considered by the author to be the best system Sony has ever used. First, the layout of the main interface is enough to see that it is sufficiently streamlined. The main functions and settings are all displayed in the form of waterfall flow. It is very easy to get started. This system is based on Android 6.0 development, operating logic is Sony classic cross menu, style is Google's card design. In terms of the experience of the entire system, the fluency and ease of use are excellent. Compared with Samsung's Tizen system and LG's WebOS system, both the richness and expansibility of the application of Android system will be even better. The Sony system has improved.

Content Resources: No advantage over Internet brands

In today's Internet thinking, TV has become more Internet-based. At the earliest on television, we could only see cable content. Today, we can broadcast on-demand programs through the Internet. Therefore, whether a television's content resources are rich has also become one of the conditions for consumers to purchase. In this environment, Sony has also begun to lay out its online content. In terms of licensees, Sony cooperates with Hua Digital TV to enjoy all the resources of Hua Digital TV.
Thanks to the use of Huawei TV licensees, the Z9D can enjoy all the resources of Huada. The interface has a total of 10 categories. The major movies, TV shows, and variety shows are covered. At the same time, the VIP membership price is 269 yuan, which is relatively affordable. . However, in terms of the abundance of resources, it is clear that Internet brands that do not focus on content have an advantage. However, Sony has re-optimized the existing online resource images and codecs, and has an advantage in terms of picture quality compared to other products that also have the same number of TV resources.

It is also worth noting that Sony has combined Tencent games with a built-in game area. Tencent games will be optimized for the operation of large screens and remote controls or joysticks. Although the game quality is still better than Sony PlayStation, it is better than some manufacturers directly. The mobile phone App is placed in its own application market.

Test summary: three professional editors have something to say

Pan Binqiang (technical control): Sony's flagship TV, the existence of faith, any era is the "strongest picture quality" spokesperson, despite this year's OLED and Quantum dot technology is rampant, but Z9D's release completely end the strongest quality Controversy, Sony's "black technology" strength is fully demonstrated, Z9D two core magic weapon has a dynamic backlight system master version and 4K X1 Extreme chip specifically for HDR technology.

Serious experience of the Sony Z9D has three major feelings, amazing brightness and the OLED's black performance, think of HDR technology, "bright place, darker, darker place," without explanation. Secondly, the Z9D's performance is extremely alarming. The Z9D that can't be displayed on other TVs can be perfectly displayed and extremely shocking. Third, the fluency of the screen, used to connect the PS4 Pro/XBOX ONE game console is perfect, Sony's unique MotionFlow XR can be perceived by the naked eye. Not much else to say, Sony Z9D is by far the most comprehensive TV with the best picture quality, you can add the word “no one”.

Ren Jianning (photographist): The Z9D's fine blackout technology brings out the outstanding black field performance. The “smooth gradient mode” brought by the flagship X1 image processor can effectively eliminate the “gradation phenomenon” of excessive image color. Among the many TV products, the Z9D is also particularly good in terms of color, and the image is sharp and clear. The biggest highlight of this Sony Z9D TV product is "Dynamic Backlight Master Edition" which deserves to be the "black technology" of LCD panels. The Z9D deserves to be the flagship of Sony's "Z" series this year.

Zhou Xun (know the ball Emperor): The picture quality is relatively satisfactory, and the original appearance of the original content is restored. Many subtleties in the video can be displayed. At the same time, it has a higher brightness and a wider dynamic range. Although the brightness is too high to reflect the ambient light, it can be dazzling. The color display can also be close to the reality. With Sony Black Motion Motion XR technology, the smoothness of the motion picture is excellent. However, the appearance is slightly bloated, the base part is not easy to install, and the remote control operation experience is not ideal.
Written at the end:

In general, not only the author but also the other three colleagues have given high recognition to the quality performance of the Sony Z9D TV, especially the recognition of the "technical gods" in the department. To get his approval, it is very much. It is not easy, but Sony Z9D really touched him, and it really touched our four professional editors. As the TV series that Sony had high hopes for this year, the performance of the Z9D has surpassed industry expectations.

Looking at the entire TV market, symbolizing that the prices of high-end OLED TVs are always high, the 65-inch Z9D, which only costs half the price, can also bring unmatched black performance, plus real-world ambient light and amazing results. Details of performance, so that the top quality enjoyment can be said to have been the ultimate performance of LCD. Have to admit, Z9D let Sony in the high-end TV market once again stood in the vantage point, but also set a new benchmark for other brands.

As the article said at the beginning, it is possible to see a real world on television screens. This is Sony's ultimate goal. We also expect that Sony will bring us more black technology and more surprises in the future.

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