Strength leads the future of organic light-emitting diodes, revealing Sony A 1 black technology.

IT 168 Evaluation Judging from the color TV market situation in China this year, it should be the year when OLED TV broke out. At the beginning of the year, Sony launched Sony BRAVIA A series, a revolutionary product in the field of OLED TV, at CES in the United States. This is the latest masterpiece in the top TV field after Sony launched the landmark LCD TV Z9D series last year. Today, Sony A 1, a 65-inch model of this series, first appeared in our evaluation room. What is its strength? Let's have a look!

Sony A 1 TV is equipped with the brand's exclusive screen sound field technology, which directly sounds through the screen, bringing an audio-visual experience that no TV can provide before-"audio-visual integration". At the same time, in terms of Sony's proud display effect, due to the addition of X 1 advanced image processing chip, not only the characteristics of wide viewing angle and no tailing of organic light-emitting diode technology can be brought into full play, but also dynamic images can be processed. It can be said that A 1 has become a landmark benchmark product in the history of OLED TV, even if the index parameters are not discussed.

Today our evaluation I * * * is divided into four parts, appearance, image quality, sound quality and system. Without further ado, let's take a closer look at the appearance of Sony A 1 TV:

The extreme ingenuity of the atlas controls the appearance of Sony A 1 TV.

"Sony A 1 picture quality &; Decoding measurement analysis

The core function of TV is "watching", so the picture quality is naturally the most important, and the quality of picture quality directly affects the user's viewing experience. Sony A 1 adopts the organic light-emitting diode screen known as "future display technology", so how can we present the most perfect display effect of OLED panel? It also needs to cooperate with Sony's own image processing chip and many image quality technologies.

Sony A 1 adopts the same advanced version of 4K HDR image processing chip X 1 as Z9D series TV, which is 4 times more powerful than the original X 1 chip1. In color, clarity and HDR, it has been accurately repaired and optimized as never before, thus bringing better image quality performance. This technology is mainly composed of three core technologies: HDR dynamic item-by-item remodeling technology, dual-image database and 4K HDR 14-bit smooth gradient.

The workflow of Sony's 4K image processing chip is very complicated. After the signal source is input, it will enter the signal analyzer and signal processor synchronously. The analyzer will detect and analyze the picture according to the object, and then output the result to the signal processor to partially correct and optimize the original signal. After the signal processor sends the signal to the panel driver, the feedback from the panel will also be fed back to the processor, and then it will be sent to the driver for display again after optimization.

Tested by professional instrument BM-7, Sony A 1 scored significantly higher in both bright and dark fields than most HDR models on the market, and performed very well in brightness. The measured NTSC color gamut value is 92.2 1% (the value is for reference only, and the test values of different devices will be different, depending on the actual image quality), which is obviously higher than the color gamut range of ordinary TV about 75%, and the range of green and red areas in the visible color gamut map is obviously wider.

Nowadays, many products on the market pay too much attention to color saturation, and the picture color is too bright or even distorted. Sony has been pursuing the same effect as the real environment seen by the naked eye. The optimized images of Sony X 1 advanced chips are rich in color and vivid, and the quality is absolutely amazing.

Let's look at a set of pictures of Sony A 1 TV:

Ultra-high definition picture real shot

It can be seen that Sony A 1 is outstanding in the processing of picture details, even the fluff on the surface of kiwifruit can be seen clearly, and the picture color processing is also very realistic.

Ultra-high definition picture real shot

The color control of the picture is in place, and the multi-level blue is mixed together, and the rich color changes bring very realistic visual impact.

Ultra-high definition picture real shot

The gradient effect of green is very natural, and the details on the butterfly wings are unobstructed.

Ultra-high definition picture real shot

Many TVs will have a distorted effect when displaying red, but Sony A 1 does live up to expectations, and the red picture is also handled very delicately.

Ultra-high definition picture real shot

The overall details are outstanding, the brightness of the picture is greatly improved, the bright part is brighter, and the dark part is deeper while retaining the details.

When watching TV, the picture is often dynamic, so the dynamic definition is also one of the important standards to measure the quality of TV. We set the TV back to the factory settings, play the dynamic test source in the default mode, check the dynamic definition and watch it at close range. It is also difficult to identify the phenomenon of smear, and even the figure in the high-speed train can be seen clearly.

Dynamic definition film source test

During the test, we played the local files. Even the 4K movies with high bit rate have no frame skipping, and the playback is smooth, and the fast-forward and fast-backward operation is very sensitive, which fully reflects the decoding ability of the whole TV.

4k decoding film source test

As we all know, considering the practicality and power control, the brightness of OLED TVs is generally not high at this stage, but the brightness performance of Sony A 1 is much better than that of OLED TVs currently on the market. In HDR mode, the peak brightness of this TV can even be nearly doubled.

HDR film source brightness test

Summary: This Sony A 1 TV has excellent picture quality, which can perfectly show every detail of the picture. Relying on Sony's accumulated experience in color matching for many years, A 1 can achieve such a high color gamut coverage while displaying colors truly and naturally. The pictures seen from all angles are equally beautiful, with no astigmatism, light leakage and picture distortion at all. The colors are gorgeous and accurate, which is very commendable. It can be said that the picture quality is excellent.

"Sony A 1 Analysis of Sound Quality Measurement;

Speaking of the audio part of Sony A 1, it is also a powerful black technology that is not lost to the image quality part. Bian Xiao had to say that SuoDafa was really deceived this time. A 1 series is the world's first large-screen TV that can use the screen to make sound. Let's talk about this magical "screen sound" technology that uses the screen as a speaker from a technical point of view. According to official information, Sony has developed acoustic surface technology (screen sound field technology) by using the backlight-free structure of organic light-emitting diodes, which can make the screen itself emit sound directly. Moreover, this way of sound production can perfectly combine sound and picture, and achieve a wider "sound and picture synchronization" effect.

This may be too mysterious. Let me briefly talk about the principle of this technology. As you may know, sound is produced by vibration, and Sony A 1 just takes advantage of the characteristic that sound waves are vibration. Two vibrating units are placed behind the left and right sides of the screen. When the driving devices in different positions work, A 1 will also sound from different positions on the screen. If some students can touch the screen of A 1, they can feel the special vibration more directly. Bian Xiao believes that at that moment, you can't help shouting "black technology"!

From the visual point of view, such a brand-new sound structure allows A 1 to design an independent speaker system without sacrificing the width of the frame or the thickness of the fuselage (such a system is always difficult to balance the sound performance, volume and price), and also avoids the visual and installation troubles caused by the need for additional "sound sticks" in the recently popular split TV. Even if it is hung on the wall, it can be truly integrated without redundancy.

In terms of sound expression, due to the existence of special sound surface technology, the sound source of sound can correspond to the points on the screen one by one, which truly realizes the synchronization effect of "listening where you look" for the first time in history, further enhancing the sense of presence when watching TV. Combined with Sony's unique 4K HDR image processing chip X 1 Advanced Edition, the picture effect is impeccable, followed by sound. At this time, watching a nature documentary or China on the Tip of the Tongue, you can simply feel the wind and leaves swaying around you, and the chef is cooking food in front of you. The real "extreme audio-visual enjoyment" is so much!

In order to take care of the low-frequency overtone loss caused by the direct vibration of the hard organic light-emitting diode screen, Sony also specially placed a bass unit in the rear bracket of A 1 to form a 2. 1 channel. The enhanced low frequency response is more realistic and shocking when playing back jazz scenes or American "Gun Qiu Che" blockbusters. Listening to songs is also a wonderful enjoyment.

Summary: Sony A 1 screen sound is already very black technology. Surprisingly, it can achieve such high sound quality that you can enjoy natural and impactful vivid pictures at home. Unique shocking sound effect, integrated with real sound and painting.

Sony A 1 video resources &; Intelligent application analysis:

As a smart TV, Sony A 1 continues the brand tradition, is equipped with Android 6.0 system, and can be upgraded to 7.0 through new firmware, so users can get a wider range of smart applications. At the same time, the layout of the main interface is very simple, and the main functions and settings are displayed in the form of waterfalls, which is very easy for new users to get started. In the experience of the whole system, fluency and ease of use are excellent.

Operation main interface

In terms of video resources, Sony A 1 still follows its former partner, China Digital TV. As the largest video content provider in China, it goes without saying that the content is rich and varied. According to preliminary statistics, there are thousands of movies alone, including 7800 free movies and TV series, many of which are hit TV series. The charging standard of VIP film and television is still 5 yuan or 8 yuan, allowing 10 minutes for trial viewing. Of course, you can also choose monthly or annual subscription.

Film interface

VIP recharge interface

At the same time, Sony has re-optimized the existing online resource images and codecs. Compared with other products that also have China Digital TV resources, Sony has more advantages in image quality and better visual effects. Domestic powerful content resource providers such as Sohu Video, LeTV Sports and QQ Music have also reached in-depth cooperation with Sony. This is the best content that Sony pursues, and it must be enjoyed by the TV with the best picture quality and sound quality.

Sohu interface

In terms of smart applications, Sony A 1 TV has also joined the smart platform in line with the current market trend and invested in the Android camp. After all, there are a lot of applications to choose from, and neither the picture quality nor the playability has improved a little. In addition, the system applications of Sony TV also include music, photo albums and videos, so it is very convenient to read the data of external devices.

Application interface

Game interface

Summary: Sony A 1 has a simple interface layout for Android operating system, which is excellent in fluency and ease of use. The cooperation with Huashu, one of the seven photo operators, ensures that the massive video resources of Sony A 1 are genuine and approved. Cooperation with third-party suppliers such as Sohu Film and Television, LeTV Sports and QQ Music can give users more TV entertainment choices. In terms of product intelligence and interactive experience, both the richness and scalability of applications have been improved, fully meeting the diverse needs of users of different ages.

Summary: As a large-screen TV tailored for high-end consumers, Sony A 1 has reached a very high level in all aspects. Whether it is organic light-emitting diodes, a number of quality black technologies, or Sony's exclusive screen sound field technology, it has finally helped A 1 achieve a number of unprecedented "firsts".

In appearance, its minimalist design, exquisite workmanship and ultra-narrow frame greatly enhance the overall viewing effect. In terms of image quality, relying on the powerful X 1 advanced processing chip and Sony's exclusive color processing technology for many years, A 1 has achieved excellent image quality while ensuring gorgeous colors. In terms of sound quality, the latest black technology brought by Sony makes the screen sound, enjoys natural and impactful vivid pictures, and at the same time makes users feel the unique shocking sound effects and sound painting real stereo field.

It must be said that Sony A 1 TV has found a new development direction for the "lost" organic light-emitting diode market through a series of originality and subversion, and truly achieved the industry leading level.