Most consumers are most concerned about their image quality when they buy TV. There is also a popular phrase in the private sector. It is the concept of “buy TV first to look at the screenâ€. Usually we think that the better the screen, the better the picture quality will be. We will also see the merchants indicate that the TV has adopted the slogan of “an original imported panel†when buying a TV. Many people will use this as the standard for purchase. . However, when people bought home and watched it, they did not notice any obvious difference.
Will a good screen have excellent image quality?
· Quality does not depend only on the screen
Millet TV 4 has achieved impressive sales results since its launch. This series of products has also become one of the most popular Internet TVs. Xiaomi’s products have always been extremely cost-effective and its television products are no exception. In addition to its high hardware configuration, Xiaomi TV 4 also indicated on its screen the original imported screens, namely the original LG Display LCD screen and the original Samsung screen, which touched the hearts of consumers.
Millet TV 4 full series uses original imported screen
Sony TV has always been a spokesperson for picture quality, and its persistence and pursuit of picture quality are well known. Although Sony itself produces screens, most of them will be used in prototypes, military and commercial applications, and will never be used in mass-produced TV sets. Sony LCD TVs use LCD screens produced by Chinese panel makers such as Chi Mei, AUO, and China Star Optoelectronics. They do not use LCD screens imported from their own screens or from many TV manufacturers.
Sony TV uses more Chinese-made screens
Millet and Sony TV can be counted as the representative brands in the current mid-to-high-end market, each with unique brand advantages, and both have accumulated a large number of user groups. However, in terms of core image quality alone, using domestically-made screens, Sony is undoubtedly more advantageous than using millet-based screens. I believe we have not questioned this. So why is this happening? The key lies in the TV image processing chip, whether you use the domestic screen or the imported screen, you want to get the true color, delicate and clear high-quality performance, a good image processing chip It is essential to exist.
The screen is indeed an important factor affecting the picture quality of TV. Everyone is very clear about this, but the quality of the picture is not the only important factor. The TV image processing chip also affects the picture quality performance.
·What is the power of the TV picture quality chip?
Compared to many manufacturers promoting LCD panels, TV picture quality chips are somewhat obscure, because not all TV manufacturers have the ability to develop TV picture quality chips, so it will focus on the screen itself. However, in terms of the quality of TV core graphics, the role of TV-quality chips is not inferior to television screens, and even more important than the role of the panel.
TV image processing chip plays a crucial role in picture quality
The TV picture quality chip can be understood as a component of the video card in the host computer. It can process and repair the image signals and images in the signal. In the clarity, noise reduction, color enhancement, contrast enhancement, motion compensation and other aspects play a crucial role. At the same time, the video signal entered by the TV interface must be processed by the image engine, converted into a signal suitable for its own TV broadcast, and optimized accordingly, which can effectively improve the picture quality performance.
Do not confuse ARM chips and quality chips in TVs
Before we talked about not all TV manufacturers have the R&D capabilities of TV-quality chips, so some manufacturers began to steal concepts and use ARM chips to replace TV-quality chips. ARM's chips only serve Android. And video decoding.
TV ARM chip is more service Android system and video decoding
Of course, there are many ARM chips integrated with the image quality engine technology, but there are still some problems in improving the image quality, just like using a nuclear display to play the same effect as a stand-alone machine.
TV ARM chip seems to be incapable of improving the picture quality
Although the integrated image quality engine in the ARM chip can meet the simple image processing requirements, we must not think that this is a very powerful thing. In fact, this is just an all-in-one chip that integrates all interfaces, that is, as long as it is The same chip solution is the same as the underlying program connected to the TV. There are no features at all. What really makes sense is a TV-independent picture quality chip, a unique algorithm, and a powerful database, all of which require television manufacturers to invest significant effort and cost in R&D.
Not all vendors have the ability to develop graphics chips
For the research and development of the TV picture quality chip, a large amount of front-end video material information needs to be collected to form a database, which serves the back-end image processing chip. With different materials, corresponding image processing algorithms can be produced according to the information of the large database. For example, to treat different resolutions, different streams, different shades, different shade screens, you need to find the corresponding algorithm from the database to optimize. This requires a good understanding of the hardware and content, for those TV manufacturers that do not have R&D capabilities. It's hard to do.
Representative manufacturers: Sony, Samsung, LG, Hisense
Sony X1 image processing chip advanced version:
At present, Sony's flagship TV products are equipped with an advanced version of the X1 image processing chip. This chip is mainly composed of three core technologies: HDR dynamic item-by-item remodeling technology, dual-image database, and 4KHDR14-bit smooth gradient technology. The precise repair and optimization of TV color, sharpness and HDR are three aspects.
Sony X1 image processing chip advanced version
HDR dynamic item-by-item remodeling technology detects and analyzes each object in the frame frame by frame and gives the best optimization algorithm. After optimization, the image engine performs HDR shading adjustment according to the overall image contrast. The dual-image database is mainly used for noise reduction processing, and can realize the recognition of different elements in the foreground and background of the image, and then compares and analyzes the large image database for noise reduction processing. The 4KHDR14-bit smooth gradation technology analyzes the image frame by frame and performs 14-bit smoothing on the image to fully optimize the gradation, resulting in a lower gradation and natural color transition.
Samsung 8KAI TV chip:
At the just-concluded TheFirstLook New York New Product Launch Conference, Samsung brought the world's first 8KAI TV chip, through the Samsung Machine Learning Super Resolution (MLSR) technology, through the AI ​​artificial intelligence to analyze the quality of the same content in both high and low versions , Learn the technical differences between the two, and form a huge database. Based on this analysis, MLSR will provide the best filter effects to achieve optimization of all input content in terms of brightness, blackout, blur, and other issues, and convert low-resolution images into high-resolution 8K effects.
Samsung 8KAI TV chip expected to be applied to QLEDTV in the second half of 2018
With Samsung's new 8KAI chip, the TV will automatically analyze the characteristics of the content being played. For example, when you are watching a movie with a musical performance, AI artificial intelligence technology will strengthen the music part, allowing you to get the same as the character in the movie. Live experience. When the performance was over, everyone in the movie applauded and applauded, and you seemed to be among the thousands of spectators, immersed in thunderous applause. When the protagonist speaks, AI artificial intelligence technology will also be optimized to ensure that every sentence lines are clearly transmitted.
LG new α9 TV chip:
The LGα9 TV chip has been improved in both image processing and AI. First, in image processing, the α9 chip supports high frame rates of 120 frames per second. It can also effectively eliminate picture noise, and automatically analyzes and perceives factors that interfere with image quality. Through the quadruple noise reduction technology, the screen's early breaks and ripples are removed to make the screen clearer and brighter. At the same time, the α9 chip can separate the screen background and the main body, further the main body's brightness and darkness contrast, highlight the viewing distance, and enhance the three-dimensional image; the color is also An important part of image quality, the alpha9 chip makes LG TV's color accuracy 49 times better, showing a richer, purer color performance.
LGα9 TV chip
In terms of AI artificial intelligence, the α9 chip can better understand the natural language voice commands issued by users and adapt to GoogleAssitant Assistant. Users can tell them what you want to do like chatting with friends without issuing a command with a broadcast chamber. At the same time α9 chip also supports some advanced commands, for example you can tell it to automatically shut down when a program ends.
Hisense Hi-ViewPro TV chip:
Making TV without its own chips is always a second-rate enterprise. This is what Mr. Zhou Houjian, chairman of Hisense, announced when he released China's first self-developed TV chip Hi-ViewPro at the end of 2015. His quality chip developed by Hisense is not only the first TV chip in China, but also can significantly improve the dynamic range, dynamic contrast, color gamut, sharpness, and smoothness of the LCD TV picture. It is the national high-end nuclear high-end. Industrialization of chips.
China's first self-developed TV chip - Hisense Hi-ViewPro
The Hi-ViewPro picture quality engine chip has dozens of autonomous algorithms and IP, and the circuit scale is in the order of 50 million gates, that is, the number of logic gates contained in the chip, which can be understood as an index of computing power and manufacturing process, and the number of transistors. It has reached 200 million. On the display side, the Hi-ViewPro image quality engine can be used in conjunction with Hisense's unique ULED display technology to further enhance the picture quality performance of Hisense ULED TVs. At present, this chip is widely used in high-end television products from Hisense.
Written at the end:
The role played by TV chips for picture quality is somewhat greater than the screen itself. Of course, the author does not deny that good screens can indeed add value to picture quality. High-quality panels are more excellent in terms of backlight control and light transmittance. If the backlight components in the LCD panel are not good enough, even the top quality chips will still see significant light leakage, and excellent image quality performance will be impossible. Talking about it, the TV screen and the image processing chip are more complementary to each other.
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