The king is also divided into high and low Sony A1 and Samsung Q8C comparative evaluation

Let's start with a quick understanding of the two products and related technologies for this comparison:

Sony BRAVIA A1 (65 inches)

When Sony used Z9D to cast its position as the king of LCD TVs, the release of Sony's first 4K HDR OLED TV BRAVIA A1 at this year's CES was a new challenge to the OLED camp. Using the industry's most cutting-edge OLED screens, plus powerful 4K HDR image processing chip X1 advanced version and exclusive black screen sound field and other powerful black technology. Since Sony released the world's first OLED TV in 2007, ten years ago, the BRAVIA A1 OLED TV is undoubtedly the satisfaction of Sony for the quality of the consumer's satisfaction.

Sony A1

Samsung Q8C (65 inches)

Also from the annual flagship released on CES, Samsung Q8C QD TV is the old-fashioned feature of its flagship minimalist design and high QD quality. As Samsung still holds stubbornly biting quantum dots every year, this new product has also been officially launched with a nominal peak brightness of 1500-2000nits, and is the world’s first TV product capable of restoring 100% color. In QD technology, Q8C also boasts 4K resolution and Samsung's consistent 0R curvature screen, which is significantly higher than the previous generation of Samsung LCD TVs.

Samsung Q8C

Display technology contrast

First of all, from the nature of the two display technologies, the quantum dot technology used by the Samsung Q8C is actually just a "variation" of the LCD. It is still essentially an LCD TV. In recent years, the principle of light emission after excitation by inorganic nanomaterials below 100 nm has been adopted. Quantum dot technology replaces traditional white LED backlight + liquid crystal particles, forming the semi-finished product of the current mainstream blue LED backlight + red and green quantum dot film. solution. From the display structure, almost the same as the traditional LCD panel, but the use of a more pure red and green quantum dots, so from the color gamut standard, in the red and green slightly advantage. Of course, the unavoidable problem is that black impure, light leakage, and high cost of curved surfaces have not significantly improved the quantum dot technology at this stage.

Especially in the surface characteristics of the screen, the industry has been controversial on the surface effects and cost considerations of LCD screens. Curved screens are indeed more gimmicks and are subject to objective factors such as product pricing and price wars. Excessive costs of such “hard screen” products on curved surfaces will inevitably affect the application of hardware and technology that can really improve picture quality. Such as better processing of chips, better color technology, this is the root cause of a large number of manufacturers take a conservative attitude to curved screen, Samsung can be said to be more bold in this regard.

The quantum dot structure is virtually identical to the traditional LCD panel, replacing only the backlight and light emitting components

Samsung Q8C nameplate "exposed" the nature of its liquid crystal structure

In the OLED technology represented by Sony BRAVIA A1, OLED is obviously superior to other display technologies in the current TV market in terms of panel structure. In the face of various problems encountered by traditional LCD panels, the structure of Sony BRAVIA A1's OLED panel can pass. Completely off the OLED light source in the area to achieve a true pure black effect, has a revolutionary innate advantages in terms of contrast, dark details, etc., and is more qualified to represent the future development of television.

Of course, for the curved screen application problem mentioned above, although Sony BRAVIA A1 does not use curved surface design, in fact, the flexible nature of OLED makes it the most suitable display technology for curved screens on the market, and is almost cost-effective. There will not be more costs, of course, for the choice of curved screen, to a large extent also depends on the manufacturer's response to consumer concerns.

OLED light emission principle

The OLED used by Sony BRAVIA A1 has the characteristics of pure black, flexible material, thin thickness and high contrast.

Performance measurement - actual display effect comparison:

Color gamut is one of the technical indicators to measure the quality of televisions. The higher the color of the theory is, the more colorful the color is. Xiaobian used the school colorer Spider elite 5 to test the two flagship products (because it is a civilian-grade instrument, the test may be biased, for reference only):

Sony A1 color gamut test results: 94.6% NTSC

Samsung Q8C color gamut test results: 100.8% NTSC

Test results show that Sony A1's color gamut is 94.6% NTSC, while the Samsung Q8C's color gamut is 100.8% NTSC. As mentioned earlier, Samsung Q8C with quantum dot technology has a higher color gamut. The color gamut is actually a method of encoding a color. It also refers to the sum of colors that can be produced by a technical system. However, the positive correlation between the color gamut and the color is only a theoretical concept. After all, the high color gamut of a machine system is an advantage. More important is how to show this advantage.

The two flagships have their own advantages or even completely different styles in terms of picture color, contrast, and picture details. Next, we combine the specific screen shots to talk about the picture quality of the two (both are in two sets). In the case of the TV default setting, shooting with fixed camera parameters)

As you can clearly see in the above picture, the level and detail of the water on the Sony A1 TV are more abundant, and the contrast between the light reflected by the water splash and the shadow is very clear. In contrast, the details of the splash on the Samsung Q8C are not as good as A1, and the level is more distinct.

In this group of pictures, the Samsung Q8C does have an impressive brightness, but the Sony A1 screens can accurately display the wall texture and even the color of the curtains in the windows, with a higher degree of recognition and three-dimensionality. The Samsung Q8C, on the other hand, is slightly lacking, and the details on the walls are obviously lost.

We mentioned above that the color gamut value only theoretically proves the richness of color. In the above picture comparison, the color reproduction of Sony A1 is more accurate, the performance of orange, yellow, and red is no problem, and the shadow is perfectly restored. The subtle color changes in the dark part, but the Samsung Q8C with a higher color gamut has a little more color cast and some distortion.

In the high-light ratio screen, the Sony A1 can effectively control the highlights but not the shadows. The details of the shadows are preserved. The texture of the highlights on the screen is still clearly visible. However, the Samsung Q8C did not seem to be able to deal with the details. Although at first glance the brightness was very high, the highlights were overexposed and the features of the HDR high dynamic range content (ie bright details, dark layers) were not available. Give it out.

In fact, it is easy to see from the above comparison chart that the Samsung Q8C screen with QLED quantum dot display technology has extremely bright colors. At the same time, because the screen is too bright, it always gives people a “glare” feeling. This is especially true in a dimly lit room. Obviously, long-term viewing may damage the user's eyesight. The blue light emitted by the Q8C, which is essentially a liquid crystal television, has a very high energy and can penetrate the lens directly to the retina and directly indirectly cause damage to cells in the macular area. On the contrary, the performance of the Sony A1 is much better, although the color gamut is not as good as the Samsung Q8C. , But the color of the picture is accurate, and because it is self-illumination, it can effectively avoid the backlight strobe stimulation, even if the long-term viewing will not be dazzling, like in the real scene. All in all, OLED TV A1 is more eye-safe than quantum Q8C.

Performance Measure - Contrast Test

At the same time, in terms of contrast, the difference between the Sony BRAVIA A1 and the Samsung Q8C itself, as well as the involvement of the Sony X1 Advanced Graphics chipset for 4K HDR, can significantly enhance the performance of the TV screen. From the processing of the starry sky picture below, the two television products deal with various elements such as the universe, the stars, the earth, and the nebula in the picture, and test the display performance of the product in terms of contrast, black performance, and other comprehensive aspects.

Due to the self-luminous characteristics of OLEDs, they can achieve pure black when displaying black images. A1 can maintain a deep starry sky in contrast tests, and bright parts are also very rich in detail. Samsung Q8C Although the backlight control is also very good, but eventually the LCD is difficult to contend with OLED, in the pure night sky at the same time, in the lower right corner there is a significant light leakage problem, and the dark details less than A1 rich.

Performance Measured - Regional Light Control Comparison Test

The area control light can make the bright part of the picture brighter and the dark part darker, thus improving the picture quality of the LCD screen to some extent. However, since the liquid crystal itself can only adjust the grayscale and cannot adjust the brightness, even if the grayscale is at its highest level, it cannot completely prevent the light from the backlight of the neighboring area from being transmitted. The end result is that the purest black cannot be obtained, which is what we usually call There is light leakage. At this point, OLEDs have near-perfect performance, because OLEDs are self-luminous, there is no problem with the backlight, each pixel can achieve independent and precise control, so the highlights and shadows will become more pure.

Sony BRAVIA A1 display effect

Samsung Q8C display effect

Sony A1 due to the characteristics of OLED, the bright and dark part is quite clear and sharp, Samsung Q8C's overall performance is also quite good, can enhance the color contrast through effective backlight control, but there are inevitable light leakage problems at the edge of the white point.

Performance Measurement - Response Speed ​​Test

We used to test a 4K resolution video with a frame rate of 60fps. The white circles in the video will continue to move fast. If the TV's response speed cannot keep up with the circular movement speed, it will appear smear or tear. In order to more objectively present the actual performance of the two TVs, we use the camera's high-speed continuous shooting function to record, and freeze the momentary state of the small circle during the movement.

Sony Motion Picture Response Speed ​​Test (GIF)

Sony High Speed ​​Motion Picture Response Speed ​​Test (GIF)

Samsung Motion Picture Response Speed ​​Test (GIF)

Samsung High Speed ​​Motion Picture Response Speed ​​Test (GIF)

Design contrast:

The choice of display technology also makes the Sony BRAVIA A1 and Samsung Q8C have very different appearances. Sony A1 interprets the word “Amazing” in its design. The A1 series won the 2017 Red Dot Award for Product Design Award, adhering to the “Slice of living minimalist life” concept, breaking through existing design ideas and abandoning The pedestal, the entire TV is flat, and eventually both the display screen and the support board have been simplified into the most compact flat-plate structure. This design has never been seen before in the TV design history, breaking the embarrassment of previous TV design.

Sony BRAVIA A1 uses a baseless design

Sony BRAVIA A1 outstanding details

From the side, the Sony A1's non-pedestal design idea is supported by designing a back support. In addition to the fashion sense, the advantage is that when consumers use the product on the desktop, they will not be constrained by the aesthetic of the pedestal and hang When the wall is used, the pedestal and the screen can be better integrated with the wall surface, and there will be no blemishes that are lost or not placed after the pedestal is removed.

Sony BRAVIA A1 Slim Side

Sony BRAVIA A1 thickness is only 7.11 mm

At the same time, the integration of the base and the screen also enables a large number of display interfaces and control units to be concentrated outside the screen, making the entire screen relatively light and thin, and the screen and the frame seamlessly blend in. The actual measured thickness is only 7.11 mm, compared to the previous TV. The machine product, BRAVIA A1, becomes thinner and lighter after it is wall mounted.

Samsung Q8C uses the traditional TV structure, the structure of the screen, bracket structure, it is a ** 0R screen curvature of 65-inch products, using Samsung's usual metal style. As a mainstream television product of the current era, it conforms to the traditional TV aesthetic in appearance and fashion.

Samsung Q8C Metal Style

Due to the adoption of quantum dot technology, non-OLED curved screens are inherently more difficult in terms of manufacturing process, and will be later thick and non-curved screens. The screen structure is slightly thicker and is 11.71 mm.

Samsung Q8C thickness 11.71 mm

Performance Measurement - Audio Test: Screen Sound Field Technology Pressures Samsung Q8C

Speaking of audio, we can't fail to mention Sony A1's black technology innovation “screen sound field” technology. It uses the drive unit on the back of the camera to drive screen vibrations to generate sounds. It can effectively identify the main subject of the screen and accurately locate the sound source position. Amazing "sound and picture" effect. In addition, in order to enhance low-frequency expression, Sony A1 also built a subwoofer in the bracket, which is equivalent to this TV has a complete 2.1-channel configuration. With Sony's exclusive Clear Audio audio optimization technology and S-Froce front virtual surround sound technology, can create a satisfactory multi-channel surround effect.

BRAVIA logo on the back

Sony BRAVIA A1 sounding schematic

Sony BRAVIA A1 subwoofer

The Samsung Q8C's sound system uses 4.2 channels, built-in bass speakers, and a total output power of 60W. In addition, Samsung Q8C also supports Dolby audio and DTS codec. Due to the curved panel design, the sound has a certain sense of envelopment.

In the audio test section, we listened to some of the more classic audio auditions. Overall, Sony A1 and Samsung Q8C performed relatively close to each other in high, medium, and low frequency, and all of them performed well in the details of the various frequency bands. . Based on the use of DSP and other technologies, the Sony A1 has better performance than the Q8C in positioning the sound source and creating a spatial bearing.

Audio test

Parts humanization details

Looking from the back, Sony BRAVIA A1 has a medium-gray rear cover for the bracket, which makes the entire rear bracket and the overall appearance of a harmonious feeling. It can be easily disassembled with a single buckle, and the underside can be routed. After removal, you can see the wall mounting holes and back interface, including four HDMI high-definition interface, USB3.0 interface, two USB2.0 interfaces, video and audio interfaces and network interfaces.

The interface is integrated with the base, and it is still easy to connect the wire after the wall is attached.

Sony BRAVIA A1 back

Interface configuration

The Samsung Q8C uses a traditional back layout. Connecting a main box to the screen via a cable also provides four HDMI ports and three USB port configurations for the TV. Of course, if you need to use the wall, the main box still needs to be placed in a place, and the interface on the back will still appear messy after connecting the wires.

Samsung back

External host box

System Ease of Use Comparison: Easy to Use Android Apps

Sony BRAVIA A1 is equipped with an Android system that everyone is familiar with. It has been upgraded to Android version 7.0 and has a large number of third-party adapter resources. In terms of the Internet resources that the current consumers are extremely concerned about, Sony BRAVIA A1 has built-in domestic leading content applications such as Huada, QQ Music, etc. The recently hit TV series “Blindness” and “human taste is Qing Huan” are all available. Watched by Sony BRAVIA A1.

Sony BRAVIA A1 equipped with Android Smart TV System (GIF)

Samsung Q8C is equipped with a Linux-based smart operating system Tizen developed jointly by Samsung and Intel, which is an operating system that is unfamiliar to most users. The fluency and interface logic of the overall operation are not too problematic, but the third-party applications of the system are relatively short, and some applications that are extremely popular on Android systems may not exist on the Tizen platform. In terms of Internet resources, the Samsung Q8C has built-in Mango TV, which has relatively limited contents, mainly Hunan TV's programs and a small number of hit series.

Samsung Q8C equipped with Tizen Smart TV System (GIF)

Power consumption, radiation contrast

The industry has always been rumors that QD TV technology has certain advantages in energy consumption, but from the actual measurement situation, compared to traditional LCD TVs, QD TVs represented by Samsung Q8C do have certain advantages in energy consumption, but After a power test after 3 hours of continuous playback, compared to Sony BRAVIA A1 using OLED, slightly power consumption, but both in terms of power consumption are remarkable.

Sony BRAVIA A1 measured power consumption 0.33 degrees; Samsung Q8C 0.55 degrees

Then we look at the electromagnetic radiation levels of the two televisions. At a distance of 1 meter, the radiation intensity of the Sony BRAVIA A1 is 0.16μT, and the radiation intensity of the Samsung Q8C is 0.44μT. At a distance of 3 meters, both are 0. None of them will cause any harm to the human body, and the main difference may come from differences in display technology.

Three meters test electron radiation is 0

Comparison of Sony BRAVIA A1 and Samsung Q8C

Through the detailed comparison and evaluation of the Sony BRAVIA A1 and the Samsung Q8C, I believe we should have a more comprehensive understanding of the overall performance of these two TVs. In terms of design, the two top-tier TVs all have their own characteristics. In contrast, the Sony BRAVIA A1's subversive design with no speaker and pedestal can be used to maximize minimalist aesthetics, breaking our existing TV appearance. Cognition can be more futuristic.

Considering the quality of the game based on the two display technologies, based on Sony 4K HDR X1 advanced graphics chip, Sony BRAVIA A1 fully release the OLED's many inherent advantages, picture quality performance can be called reference level performance; and Samsung Q8C to a certain extent Quantum dot technology, which is limited by the "base" of liquid crystals, is weaker than OLED TV A1 in terms of details, backlight control, and contrast performance.

In terms of audio, the 4.2-channel conventional sound system on the Samsung Q8C is similar to the system in which the Sony BRAVIA A1 is equipped with a screen sound field technology. The sound and picture mode that Sony BRAVIA A1 sees may be the future direction.

In terms of the control interface, the Sony BRAVIA A1 equipped Android system is obviously stronger in terms of the number of programs, ease of use, and extensibility. It also shows content advantages in the quality and quantity of the source, and can fully extend living room entertainment. The Samsung Q8C's operating system is slightly inferior in terms of scalability and richness of content resources.

Whether Sony BRAVIA A1 or Samsung Q8C are high-end consumers who have a certain pursuit of audio and video quality, who can ultimately conquer consumers with quality, sound effects and experience may have a lot of subjective variables. Of course, from the perspective of science and technology, the OLED represented by Sony BRAVIA A1 is growing and developing. The momentum has formed an irresistible force to change the direction of family entertainment consumption. The OLED field is also being opened after the addition of Big Brother Sony. A new era of innovation.

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