LeTV’s new conference will be held on April 14th. The company’s announcement of the new LeTV brand has not disclosed too much information, but it is reported that this conference is likely to launch a third-generation super TV.
In April last year, LeTV launched its first 4K TV LeTV X50 Air. For the 4K TVs already on the market, LeTV proposed the "Refresh 4X4" slogan and the "Le4K" brand. Not only the 4K TV, but also the 4K TV. 4K content production, coding, cloud storage, cloud transmission and a full range of services. LeTV has bombarded the "pseudo-4K" and "quasi-4K" phenomena that are prevalent in the market, and proposes that 4K content is the real 4K TV, so that users no longer face 4K TV but can only use it as ordinary TV. .
As the first shot of music to enter the 4K hardware, the strength of Super TV X50 Air in the end, can afford the task assigned to the conference? This time we experienced the engineering prototype of X50 Air for the first time, and the following is a mystery for everyone.
Shape design: The world's thinnest 50-inch 4K TV is 50 inches in size, and everyone unconsciously will compare the X50 Air with the S50 previously launched by LeTV. From a closer look, we will find that the X50 Air's design changes are very large. Here we will compare the X50 Air with the S50, so that we can more intuitively see the former in the texture improvement.
First of all, think about why there is an Air in the name of X50 Air. What is the connection with Apple's Macbook Air and iPad Air? After seeing the real thing, I soon understood that the X50 Air was designed with a slim body and an ultra-narrow frame, and its body thickness was only 16.5mm, making it the thinnest 50-inch 4K LCD TV in the world.
The above picture shows the comparison of the back of the two products. It can be seen that the S50 on the right follows the low-key style of the traditional color TV, while the X50 Air is a mirror material. Lexus staff stated that this is the design of the R&D machine and the actual mass production opportunity is adopted. Better metal wire drawing process. Several hexagonal screws on the side of the fuselage are a bit eye-catching, both practical and beautiful - is not some metal punk ranger?
X50 Air's ultra-narrow screen frame close-up, just 5.9mm (this is "Zhang Yimou return artistic version, production version of 6.9mm) than the iPad mini frame border is also narrow.
The figure above shows a close-up view of the base of the two products, with X50 Air on the left and S50 on the right. The base of the X50 Air follows the shape of a cloud arc, but the support point is extended. After installation, it will be found to be more stable than the S50. On the forums and Weibo, we found that many users who purchased the S50 put the cradle back in place. Basically, this would not happen on the X50 Air.
Comparison of the top of the X50 Air and S50, you can see X50 Air adds a USB interface with the music as the X60, X70, can be used for an external high-definition camera and somatosensory accessories. After purchasing a high-definition camera, we can use the TV's large screen to video chat with QQ friends, or use an application called "Palm Manager" to turn the TV into a home monitoring device, even on the go, can also use the control on the phone See the real-time monitoring image inside the home.
The somatosensory camera is more powerful, in addition to allowing us to play somatosensory games in the Letv Store, you can also use gestures to control all of the TV's menu, which is LeTV LetvUI 3.0 somatosensory control.
The shell design pays tribute to the Jobs iBook. The above two pictures are the back and partial close-up of the X50 Air. We can see the circuits and components under the translucent case. The PCB board is unified as a deep blue with a strong sense of science and technology. Use the cable connection, it is neat and no clutter. Before we saw someone working on the Weibo S50's circuit on microblogging, this time LeTV directly exposed the circuit to the user on the X50 Air. It can be said to be a very bold approach and shows confidence in the manufacturing process.
This semi-transparent shell can be said to be unique on the TV, let us think of Jobs's first iBook notebook after Apple's review of Apple's back - also used a similar translucent design.
It is worth noting that the transparent backshell used by the engineering machine we tested will only appear in the Zhang Yimou returning art edition in the mass production machine.
X50 Air side interface, the most distinctive of which is to provide a USB 3.0 interface, transmission speed up to 640MB per second, external hard disk play 4K video, then do not worry about transmission speed is not enough. Video interface, X50 Air provides three HDMI interfaces, computer VGA interface, and the traditional AV line interface; audio and fiber coaxial interface, and can be an external headset - late at night watching the ball can wear headphones, so as not to affect the family rest.
It can be said that the interface type of X50 Air basically covers most of the needs of ordinary users, but the staff of LeTV told us that this is not the appearance of a mass production machine. In the end, when listing, it may also include more extended interfaces.
All buttons on the X50 Air (including the power button) are located on the right side of the screen. After use, it will be found that it contains all the common smart TV operations, unlike many models that can only be swapped or volume adjusted. operating.
To sum up, there are the following changes in X50 Air compared to S50:
The position of the support point of the base has changed, and the base of the X50 Air is more stable;
The X50 Air has a body thickness of only 16.5mm, making it the world's thinnest 50-inch 4K LCD TV;
The X50 Air's back is bold and translucent. It can directly see the internal circuits and components (Liu Yimou's Return Art Version);
The X50 Air has a USB port on the top of the top for external HD cameras and somatosensory accessories. It can achieve the same video call and somatosensory functions as the high-end X60 and X70.
X50 Air side of the frame with exposed Hexagon screws for reinforcement, but also adds some fashion sense to the body.
By comparison, we can confirm that the X50 Air is not simply raising the screen to 4K compared to the S50. The appearance is basically a redesign. Through the translucent backshell, we can also find that the internal work has also been completely improved.
Quad-Core CPU + Quad-Core GPU Supports H.265 Decoding
If only from the CPU computing performance point of view, music as the X60, X70, and Xiaomi TV Qualcomm Xiaolong quad-core is clearly the strongest, but in a strict sense, this processor is not a true sense of the TV chip. Because televisions and mobile phones are different, they also need to process image signals, optimize the display quality, and provide some unique TV features, but Qualcomm's processor does not have these features, but also have to match a special image Deal with the chip.
The X50 Air is equipped with a processor from Mstar (Morningstar). The brand focuses on the research and development of TV chips all the year round. At present, the market share of TV chips is more than half, which is the company that most understands the needs of TVs. However, the brand had no quad-core products and had some difficulty in running smart systems. The 6A918 chip equipped with the X50 Air was Mstar's first quad-core chip.
The chip integrates a 1.5GHz quad-core Cortex A9-based CPU and a quad-core Maili450 GPU. Theoretically, it has excellent general-purpose computing performance and game performance, so we really want to run sub-software. However, LeTV's staff told us that the current optimization of the aircraft system is not yet mature, not suitable for running points, only to stop. From the effect of our trial, due to the increase in computing performance, the system fluency of the X50 Air is almost the same as the S50, basically reaching the level of the X60.
In addition to running the smart system more smoothly, this 6A918 chip also joins the H.265 decoding function for the first time worldwide. In the past, regardless of whether it is a network of high-definition video or Blu-ray movies, the H.264 encoding format is generally used, but in the 4K era this format was somewhat overwhelmed. H.265 is considered to be the best 4K encoding format. From the data point of view, video files with the same video quality generated by H.265 encoding are half the size of H.264 – this way, H .265 makes it possible for the Internet to watch 4K Ultra HD video online.
In addition, the 6A918 also integrates 17 image quality enhancement technologies. For example, noise reduction UCNR technology, ADE-LDE technology to enhance the detail quality, and Advanced Scaling technology that can automatically remove jagged edges and remove white edges. In the 4K era, the sharpness has reached a very high level, and the benefits of these image quality enhancement technologies to 4K are self-evident.
In summary, the Mstar 6A918 chip has the following features:
1, quad-core 1.5GHz CPU core, can ensure the smooth operation of the intelligent system;
2. The first H.265, the first encoding format that supports 4K video, greatly saving storage space and network bandwidth;
3, integrated 17 kinds of quality enhancement technology, unlike the Qualcomm processor also need to add the image processing chip;
4. Integrate multiple functions necessary for the TV to simplify the circuit design and save manufacturing costs.
It can be seen that the Mstar 6A918 is not only a high-performance TV chip, but also a chip designed for 4K TVs, which is a perfect match for the X50 Air.
4K content can enjoy 4K movies in 10K bandwidth
LeTV put forward the "refresh 4X4" slogan, the biggest difference from other manufacturers is not only the introduction of televisions, but also provides a complete 4K content service, in the TV version of LeTV provides online viewing of 4K movies and TV dramas (in the future will join the sports and singing Will video, and LetvUI will also join 4K carousel channel. Such a layout is obviously inseparable from LeTV's own advantages, and it is also difficult for other vendors to imitate. In the following sections we will examine the X50 Air in terms of 4K content.
First of all, once again popularize the concept of 4K, it refers to the resolution of 3840 × 2160, the resolution is exactly four times the full HD 1080p, it is also known as "Ultra High Definition" or "UHD." 4K has been recognized as the successor to the 1080p standard, but 4K content is extremely scarce. Not only does it lack a commercial 4K TV channel, but it has not introduced a 4K Blu-ray disc. This has led to the 4K TV market has been more than a year, but there is no 4K video can see the embarrassment. And LeTV's attitude is that since it is necessary to launch 4K TV, 4K content must be available. Under this idea, the X50 Air will be born.
Open the "LeTVTV" in the X50 Air main interface, you can see that there has been a "4K" sub-channel. During the trial days, we discovered that this 4K channel has changed greatly every day. It is clear that LeTV has been stepping up construction and adding videos. At present, there are already many domestic and foreign 4K movies. The new film has a blissful space, 13 Jinlings, and bears, etc. There are also 4K versions of some classic movies, such as the Zhao Orphans and Mission Impossible 3.
Another entrance to enjoy 4K video is on the carousel channel. There is a "Music 4K" channel, which will play 4K videos every day.
After watching a number of 4K videos, we discovered that the video quality of a film such as Bliss Space, which was shot directly with a 4K ultra HD camera, was excellent. There was no mosaic or blurry phenomenon on the Internet through online viewing. The extremely delicate picture gave a shock to people. This is far better than the original 1080p; the other is a bear that appears as a purely computer-rendered animation. When you watch it, you will find that the picture is extremely clear and without any noise. However, because it is rendered by a computer, it is less shocking than the former; This is the 4K film made by Zhao Orphan, which was converted from film. The physical resolution of the video is 4K. However, due to the characteristics of the film, noise appears on the screen. It looks like a nostalgic feeling.
For 4K video quality, you can select 4K directly in the definition options. It also indicates the need for bandwidth - 10K for 4K and 8MB for 1080p. This bandwidth requirement can be achieved for fiber users. . In contrast, LeTV's 4K online video bandwidth requirements are not much higher than 1080p, which just confirms the advantages of the H.265 encoding format. Letv said that it has deployed more than 200 CDN servers worldwide, and the greatest possible guarantee is that all local super TV users can smoothly watch online videos.
If your network bandwidth is not enough, you will be prompted to switch to lower-definition viewing.
4K content inspection summary:
Judging from the 4K channel of X50 Air, LeTV did realize its promise of “4K content with 4K TVâ€, and the number of 4K videos continues to increase. From the conference's point of view, LeTV will not only introduce 4K content, but will have 4K of its LeTV and LeTV products. It plans to produce 15 400 episodes of network dramas, nearly 10 4K movies, and a large amount of 4K entertainment throughout the year. Variety show and documentary, LeTV 4K content will account for more than 70% of the domestic market share in 2014, known as the "China's 4K content overlord." And any other TV manufacturers are unable to do this at present, X50 Air's users will be the world's first to enjoy the true 4K crowd.
How clear is 4K? Macro shots tell you
The traditional 1080p single-frame picture has about 2 million pixels, while the 4K movie single-frame picture has four times the size of 1080p, reaching more than 8 million pixels. The following two diagrams show the difference between SD, 1080p HD, and 4K HD.
For X50 Air's 4K screen display, below we made an intuitive comparison, open the same picture on both X50 Air and S50 TV, and then use a macro lens to capture the local details, compare the difference in the clarity of the two TV sets .
The first is the effect of text display. The figure above is X50 Air, and the picture below is S50. You can see that the picture that was originally displayed on a pixel on the S50 is displayed on the X50 Air as four pixels. The edges of the text are more detailed and clear.
Comparing the picture display effect, the picture above is the X50 Air, the picture below is the S50, the same screen is displayed under the same screen area, and the 4K display effect is obviously superior to many.
The 4K screen actually has a function that is to make the best viewing distance of the TV closer. A 50-inch 1080p TV can sense the graininess of the picture when viewed within 1 meter, but the 4K TV feels very delicate even within 1 meter. This is still significant for urban families who do not currently have a large living space.
LetvUI 3.0: Five Desktop Speed ​​Switches (1)
The Lexus X50 Air is the second model equipped with the LetvUI 3.0 system after the Max 70. Compared with the LetvUI 2.3, it has been greatly improved in appearance, ease of use and humanization. At the same time, the system is also built with a lot of practical applications, and rich human-computer interaction, remote control, mobile phones, and even gestures can be used to control the TV.
To realize the full charm of LetvUI, a super remote controller is indispensable. Now that LetvUI has evolved to 3.0, a new version of the super-remote with the X50 Air has also undergone a refreshing change, so we will first introduce it.
The X50 Air's standard remote control is called a "social remote control." Actually it is not much different from the Max 70's "Super Remote Pro", but the "LETV" key is changed to the "Share" button. X50 Air Project Machine with Super Remote Control Pro). The location of other buttons has also been adjusted compared to the older models of the remote control, making it even more user-friendly. This remote control has almost all the smart remote control functions you can see, such as gravity sensor, air mouse, multi-touch, voice control, etc. At the same time, it also supports “wireless upgradeâ€, the signal can be changed through the TV push signal , In order to achieve control of set-top boxes and other functions.
For users, LetvUI 3.0 is the most practical and most user-friendly place. It is a new function of the Home button. After pressing, it displays the five desktops of LetvUI on the screen (traditional TV desktop, search desktop, carousel desktop, video recommendation desktop And smart application desktop) thumbnails, you want to enter which desktop directly select the corresponding thumbnails, instead of switching desktops one by one as before.
Back to the UI itself, we found that the main interface of LetvUI 3.0 has undergone a very big change. The smart application desktop has changed from the original focus pattern to the big icon type. The application icon turning page has also turned from top to bottom, and more. Naturally - from left to right in LetvUI 2.3. Not only that, the location of the icons can also be freely changed, and folders can be created just like smart phones.
The art style of the UI interface has also undergone great changes, appearing more neat and clean, with some small fresh feelings. However, the style of the UI interface can be changed. There are many themes in the "theme store" for download, just like the theme change for smart phones.
In addition to the smart application desktop and the carousel desktop, the top five desktops have evolved. The carousel list is no longer simply a channel name, but also adds a history record and a favorite list. Users can put favorite channels into their favorites. Can be found at any time. At present, LeTV's number of carousel channels has reached more than 80. To find channels that you like from such a large number of channels is obviously a little troublesome. With favorites and historical records, it is much more convenient.
Searching the desktop is also a must-see feature of LetvUI 3.0. It is not only possible to search for local applications, pictures, videos, but also to search for videos on the entire network. Not only can search LeTV, but also can search online videos of Youku, Tudou, Sohu, and Tencent, and there are multiple sources and resolutions available for selection, which is very powerful.
LetvUI 3.0: Top Five Desktop Speed ​​Switch (2)
If you do not find what you want on the search desktop, you can try voice assistant, press and hold the corresponding button, the voice assistant interface will pop up on the TV screen, say something you want to the remote control, such as weather conditions, film and television Drama, star names, web pages, and so on, voice assistant will give you a satisfactory answer. In addition to these, many new features have been added to LetvUI 3.0's voice assistant, such as querying flight information and train information.
As for the recognition rate of speech, it is still as accurate as ever. Movies, TV names, place names, and star names are almost all 100% correctly identified.
In addition to the LetvStore app store that existed before, LetvUI 3.0 also added a game center, and its icon is as large as the TV version of LeTV. It seems that LeTV is going to make a big fuss about the game. After entering, we discovered that it was actually a game social system. Similar to Apple's Game Center, it can record players' game points, and can play games with friends and share their own game achievements. Although there are game social systems on both Android and Apple smartphones, LeTV should be the first one on smart TVs.
The built-in Web browser of LetvUI 3.0 is also a major feature. After opening, you can find the default homepage with preset major video websites and smart TV application websites. These are exactly what smart TV users need most. In this browser, you can directly play the movie and TV drama of each video site, and you can also download the APP application and install it directly on the TV. The function is quite powerful.
Some brands of TV browsers will preset links to some news websites, but experience tells us that watching news on TV is not very suitable. Operation is far less convenient than on computers.
TV butler is also a very interesting application, which inherits a variety of functions, can clean up memory like a smart phone, can manage applications on the TV, can lock the TV, and so on. There are also two QR codes that guide the user to install a "multi-screen look" on the phone.
"Look at the multi-screen" is actually the former music as mobile assistant, with it you can turn the phone into a smart remote control, not only have all the features of the remote control, you can also enter text on the phone to the TV. Video push is another major feature that can be viewed on multiple screens. It can push network videos and local pictures to Super TVs. This solves the problem of restricted video sources for smart TVs.
In addition, LetvUI 3.0 also provides many practical applications, such as calendar app with lunar calendar and solar terms, and weather forecast app that can see air index. For multi-screen interactions, support for DLNA, Airplay, and Miracast can push pictures, videos, and music on smartphones directly to the TV. 1080p Express is a unique feature of LeTV. When using a computer to access LeTV or using a mobile phone to use LeTV, you can control the Super TV in your home to download a video. Different devices do not need to be in the same local area network. Mobile phones and Super TVs can use the same account.
From the product introduction, we learned that the X50 Air also features a large screen for small screens and 3D gaming functions. The former mirrors the screen on the TV to the mobile phone and controls the application and games of the TV using the touch screen of the mobile phone. The original Android game is presented in a 3D screen, and there are hundreds of games that support this function. However, the X50 Air engineering machine for this trial has not provided these two functions, so it cannot be experienced. In the future, we will introduce in detail.
Evaluation summary:
After a detailed trial of the X50 Air's engineering prototype, we felt that if we took it as an upgraded version of the S50, it was much more than expected - the screen was upgraded to 4K ultra-high-definition, the processor was upgraded to quad-core, and the form factor and workmanship were also improved. A grade higher. Therefore, we are more willing to regard X50 Air as a new product line between LeTV and S50 and X60.
As far as the product itself is concerned, X50 Air brings us a true 4K ultra-high-definition video source while providing us with ultra-high-definition visual enjoyment, a smooth user experience and a new intelligent UI system. This is something that all previous brands that launched 4K TV can't do it. This will allow X50 Air users to grab real-time 4K blockbusters ahead of others. We hope that LeTV will continue to introduce and produce a large number of 4K films, TV dramas, variety shows and sports programs to meet the needs of 4K TV users as promised at the conference.
In April last year, LeTV launched its first 4K TV LeTV X50 Air. For the 4K TVs already on the market, LeTV proposed the "Refresh 4X4" slogan and the "Le4K" brand. Not only the 4K TV, but also the 4K TV. 4K content production, coding, cloud storage, cloud transmission and a full range of services. LeTV has bombarded the "pseudo-4K" and "quasi-4K" phenomena that are prevalent in the market, and proposes that 4K content is the real 4K TV, so that users no longer face 4K TV but can only use it as ordinary TV. .
As the first shot of music to enter the 4K hardware, the strength of Super TV X50 Air in the end, can afford the task assigned to the conference? This time we experienced the engineering prototype of X50 Air for the first time, and the following is a mystery for everyone.
Shape design: The world's thinnest 50-inch 4K TV is 50 inches in size, and everyone unconsciously will compare the X50 Air with the S50 previously launched by LeTV. From a closer look, we will find that the X50 Air's design changes are very large. Here we will compare the X50 Air with the S50, so that we can more intuitively see the former in the texture improvement.
First of all, think about why there is an Air in the name of X50 Air. What is the connection with Apple's Macbook Air and iPad Air? After seeing the real thing, I soon understood that the X50 Air was designed with a slim body and an ultra-narrow frame, and its body thickness was only 16.5mm, making it the thinnest 50-inch 4K LCD TV in the world.
The above picture shows the comparison of the back of the two products. It can be seen that the S50 on the right follows the low-key style of the traditional color TV, while the X50 Air is a mirror material. Lexus staff stated that this is the design of the R&D machine and the actual mass production opportunity is adopted. Better metal wire drawing process. Several hexagonal screws on the side of the fuselage are a bit eye-catching, both practical and beautiful - is not some metal punk ranger?
X50 Air's ultra-narrow screen frame close-up, just 5.9mm (this is "Zhang Yimou return artistic version, production version of 6.9mm) than the iPad mini frame border is also narrow.
The figure above shows a close-up view of the base of the two products, with X50 Air on the left and S50 on the right. The base of the X50 Air follows the shape of a cloud arc, but the support point is extended. After installation, it will be found to be more stable than the S50. On the forums and Weibo, we found that many users who purchased the S50 put the cradle back in place. Basically, this would not happen on the X50 Air.
Comparison of the top of the X50 Air and S50, you can see X50 Air adds a USB interface with the music as the X60, X70, can be used for an external high-definition camera and somatosensory accessories. After purchasing a high-definition camera, we can use the TV's large screen to video chat with QQ friends, or use an application called "Palm Manager" to turn the TV into a home monitoring device, even on the go, can also use the control on the phone See the real-time monitoring image inside the home.
The somatosensory camera is more powerful, in addition to allowing us to play somatosensory games in the Letv Store, you can also use gestures to control all of the TV's menu, which is LeTV LetvUI 3.0 somatosensory control.
The shell design pays tribute to the Jobs iBook. The above two pictures are the back and partial close-up of the X50 Air. We can see the circuits and components under the translucent case. The PCB board is unified as a deep blue with a strong sense of science and technology. Use the cable connection, it is neat and no clutter. Before we saw someone working on the Weibo S50's circuit on microblogging, this time LeTV directly exposed the circuit to the user on the X50 Air. It can be said to be a very bold approach and shows confidence in the manufacturing process.
This semi-transparent shell can be said to be unique on the TV, let us think of Jobs's first iBook notebook after Apple's review of Apple's back - also used a similar translucent design.
It is worth noting that the transparent backshell used by the engineering machine we tested will only appear in the Zhang Yimou returning art edition in the mass production machine.
X50 Air side interface, the most distinctive of which is to provide a USB 3.0 interface, transmission speed up to 640MB per second, external hard disk play 4K video, then do not worry about transmission speed is not enough. Video interface, X50 Air provides three HDMI interfaces, computer VGA interface, and the traditional AV line interface; audio and fiber coaxial interface, and can be an external headset - late at night watching the ball can wear headphones, so as not to affect the family rest.
It can be said that the interface type of X50 Air basically covers most of the needs of ordinary users, but the staff of LeTV told us that this is not the appearance of a mass production machine. In the end, when listing, it may also include more extended interfaces.
All buttons on the X50 Air (including the power button) are located on the right side of the screen. After use, it will be found that it contains all the common smart TV operations, unlike many models that can only be swapped or volume adjusted. operating.
To sum up, there are the following changes in X50 Air compared to S50:
The position of the support point of the base has changed, and the base of the X50 Air is more stable;
The X50 Air has a body thickness of only 16.5mm, making it the world's thinnest 50-inch 4K LCD TV;
The X50 Air's back is bold and translucent. It can directly see the internal circuits and components (Liu Yimou's Return Art Version);
The X50 Air has a USB port on the top of the top for external HD cameras and somatosensory accessories. It can achieve the same video call and somatosensory functions as the high-end X60 and X70.
X50 Air side of the frame with exposed Hexagon screws for reinforcement, but also adds some fashion sense to the body.
By comparison, we can confirm that the X50 Air is not simply raising the screen to 4K compared to the S50. The appearance is basically a redesign. Through the translucent backshell, we can also find that the internal work has also been completely improved.
Quad-Core CPU + Quad-Core GPU Supports H.265 Decoding
If only from the CPU computing performance point of view, music as the X60, X70, and Xiaomi TV Qualcomm Xiaolong quad-core is clearly the strongest, but in a strict sense, this processor is not a true sense of the TV chip. Because televisions and mobile phones are different, they also need to process image signals, optimize the display quality, and provide some unique TV features, but Qualcomm's processor does not have these features, but also have to match a special image Deal with the chip.
The X50 Air is equipped with a processor from Mstar (Morningstar). The brand focuses on the research and development of TV chips all the year round. At present, the market share of TV chips is more than half, which is the company that most understands the needs of TVs. However, the brand had no quad-core products and had some difficulty in running smart systems. The 6A918 chip equipped with the X50 Air was Mstar's first quad-core chip.
The chip integrates a 1.5GHz quad-core Cortex A9-based CPU and a quad-core Maili450 GPU. Theoretically, it has excellent general-purpose computing performance and game performance, so we really want to run sub-software. However, LeTV's staff told us that the current optimization of the aircraft system is not yet mature, not suitable for running points, only to stop. From the effect of our trial, due to the increase in computing performance, the system fluency of the X50 Air is almost the same as the S50, basically reaching the level of the X60.
In addition to running the smart system more smoothly, this 6A918 chip also joins the H.265 decoding function for the first time worldwide. In the past, regardless of whether it is a network of high-definition video or Blu-ray movies, the H.264 encoding format is generally used, but in the 4K era this format was somewhat overwhelmed. H.265 is considered to be the best 4K encoding format. From the data point of view, video files with the same video quality generated by H.265 encoding are half the size of H.264 – this way, H .265 makes it possible for the Internet to watch 4K Ultra HD video online.
In addition, the 6A918 also integrates 17 image quality enhancement technologies. For example, noise reduction UCNR technology, ADE-LDE technology to enhance the detail quality, and Advanced Scaling technology that can automatically remove jagged edges and remove white edges. In the 4K era, the sharpness has reached a very high level, and the benefits of these image quality enhancement technologies to 4K are self-evident.
In summary, the Mstar 6A918 chip has the following features:
1, quad-core 1.5GHz CPU core, can ensure the smooth operation of the intelligent system;
2. The first H.265, the first encoding format that supports 4K video, greatly saving storage space and network bandwidth;
3, integrated 17 kinds of quality enhancement technology, unlike the Qualcomm processor also need to add the image processing chip;
4. Integrate multiple functions necessary for the TV to simplify the circuit design and save manufacturing costs.
It can be seen that the Mstar 6A918 is not only a high-performance TV chip, but also a chip designed for 4K TVs, which is a perfect match for the X50 Air.
4K content can enjoy 4K movies in 10K bandwidth
LeTV put forward the "refresh 4X4" slogan, the biggest difference from other manufacturers is not only the introduction of televisions, but also provides a complete 4K content service, in the TV version of LeTV provides online viewing of 4K movies and TV dramas (in the future will join the sports and singing Will video, and LetvUI will also join 4K carousel channel. Such a layout is obviously inseparable from LeTV's own advantages, and it is also difficult for other vendors to imitate. In the following sections we will examine the X50 Air in terms of 4K content.
First of all, once again popularize the concept of 4K, it refers to the resolution of 3840 × 2160, the resolution is exactly four times the full HD 1080p, it is also known as "Ultra High Definition" or "UHD." 4K has been recognized as the successor to the 1080p standard, but 4K content is extremely scarce. Not only does it lack a commercial 4K TV channel, but it has not introduced a 4K Blu-ray disc. This has led to the 4K TV market has been more than a year, but there is no 4K video can see the embarrassment. And LeTV's attitude is that since it is necessary to launch 4K TV, 4K content must be available. Under this idea, the X50 Air will be born.
Open the "LeTVTV" in the X50 Air main interface, you can see that there has been a "4K" sub-channel. During the trial days, we discovered that this 4K channel has changed greatly every day. It is clear that LeTV has been stepping up construction and adding videos. At present, there are already many domestic and foreign 4K movies. The new film has a blissful space, 13 Jinlings, and bears, etc. There are also 4K versions of some classic movies, such as the Zhao Orphans and Mission Impossible 3.
Another entrance to enjoy 4K video is on the carousel channel. There is a "Music 4K" channel, which will play 4K videos every day.
After watching a number of 4K videos, we discovered that the video quality of a film such as Bliss Space, which was shot directly with a 4K ultra HD camera, was excellent. There was no mosaic or blurry phenomenon on the Internet through online viewing. The extremely delicate picture gave a shock to people. This is far better than the original 1080p; the other is a bear that appears as a purely computer-rendered animation. When you watch it, you will find that the picture is extremely clear and without any noise. However, because it is rendered by a computer, it is less shocking than the former; This is the 4K film made by Zhao Orphan, which was converted from film. The physical resolution of the video is 4K. However, due to the characteristics of the film, noise appears on the screen. It looks like a nostalgic feeling.
For 4K video quality, you can select 4K directly in the definition options. It also indicates the need for bandwidth - 10K for 4K and 8MB for 1080p. This bandwidth requirement can be achieved for fiber users. . In contrast, LeTV's 4K online video bandwidth requirements are not much higher than 1080p, which just confirms the advantages of the H.265 encoding format. Letv said that it has deployed more than 200 CDN servers worldwide, and the greatest possible guarantee is that all local super TV users can smoothly watch online videos.
If your network bandwidth is not enough, you will be prompted to switch to lower-definition viewing.
4K content inspection summary:
Judging from the 4K channel of X50 Air, LeTV did realize its promise of “4K content with 4K TVâ€, and the number of 4K videos continues to increase. From the conference's point of view, LeTV will not only introduce 4K content, but will have 4K of its LeTV and LeTV products. It plans to produce 15 400 episodes of network dramas, nearly 10 4K movies, and a large amount of 4K entertainment throughout the year. Variety show and documentary, LeTV 4K content will account for more than 70% of the domestic market share in 2014, known as the "China's 4K content overlord." And any other TV manufacturers are unable to do this at present, X50 Air's users will be the world's first to enjoy the true 4K crowd.
How clear is 4K? Macro shots tell you
The traditional 1080p single-frame picture has about 2 million pixels, while the 4K movie single-frame picture has four times the size of 1080p, reaching more than 8 million pixels. The following two diagrams show the difference between SD, 1080p HD, and 4K HD.
For X50 Air's 4K screen display, below we made an intuitive comparison, open the same picture on both X50 Air and S50 TV, and then use a macro lens to capture the local details, compare the difference in the clarity of the two TV sets .
The first is the effect of text display. The figure above is X50 Air, and the picture below is S50. You can see that the picture that was originally displayed on a pixel on the S50 is displayed on the X50 Air as four pixels. The edges of the text are more detailed and clear.
Comparing the picture display effect, the picture above is the X50 Air, the picture below is the S50, the same screen is displayed under the same screen area, and the 4K display effect is obviously superior to many.
The 4K screen actually has a function that is to make the best viewing distance of the TV closer. A 50-inch 1080p TV can sense the graininess of the picture when viewed within 1 meter, but the 4K TV feels very delicate even within 1 meter. This is still significant for urban families who do not currently have a large living space.
LetvUI 3.0: Five Desktop Speed ​​Switches (1)
The Lexus X50 Air is the second model equipped with the LetvUI 3.0 system after the Max 70. Compared with the LetvUI 2.3, it has been greatly improved in appearance, ease of use and humanization. At the same time, the system is also built with a lot of practical applications, and rich human-computer interaction, remote control, mobile phones, and even gestures can be used to control the TV.
To realize the full charm of LetvUI, a super remote controller is indispensable. Now that LetvUI has evolved to 3.0, a new version of the super-remote with the X50 Air has also undergone a refreshing change, so we will first introduce it.
The X50 Air's standard remote control is called a "social remote control." Actually it is not much different from the Max 70's "Super Remote Pro", but the "LETV" key is changed to the "Share" button. X50 Air Project Machine with Super Remote Control Pro). The location of other buttons has also been adjusted compared to the older models of the remote control, making it even more user-friendly. This remote control has almost all the smart remote control functions you can see, such as gravity sensor, air mouse, multi-touch, voice control, etc. At the same time, it also supports “wireless upgradeâ€, the signal can be changed through the TV push signal , In order to achieve control of set-top boxes and other functions.
For users, LetvUI 3.0 is the most practical and most user-friendly place. It is a new function of the Home button. After pressing, it displays the five desktops of LetvUI on the screen (traditional TV desktop, search desktop, carousel desktop, video recommendation desktop And smart application desktop) thumbnails, you want to enter which desktop directly select the corresponding thumbnails, instead of switching desktops one by one as before.
Back to the UI itself, we found that the main interface of LetvUI 3.0 has undergone a very big change. The smart application desktop has changed from the original focus pattern to the big icon type. The application icon turning page has also turned from top to bottom, and more. Naturally - from left to right in LetvUI 2.3. Not only that, the location of the icons can also be freely changed, and folders can be created just like smart phones.
The art style of the UI interface has also undergone great changes, appearing more neat and clean, with some small fresh feelings. However, the style of the UI interface can be changed. There are many themes in the "theme store" for download, just like the theme change for smart phones.
In addition to the smart application desktop and the carousel desktop, the top five desktops have evolved. The carousel list is no longer simply a channel name, but also adds a history record and a favorite list. Users can put favorite channels into their favorites. Can be found at any time. At present, LeTV's number of carousel channels has reached more than 80. To find channels that you like from such a large number of channels is obviously a little troublesome. With favorites and historical records, it is much more convenient.
Searching the desktop is also a must-see feature of LetvUI 3.0. It is not only possible to search for local applications, pictures, videos, but also to search for videos on the entire network. Not only can search LeTV, but also can search online videos of Youku, Tudou, Sohu, and Tencent, and there are multiple sources and resolutions available for selection, which is very powerful.
LetvUI 3.0: Top Five Desktop Speed ​​Switch (2)
If you do not find what you want on the search desktop, you can try voice assistant, press and hold the corresponding button, the voice assistant interface will pop up on the TV screen, say something you want to the remote control, such as weather conditions, film and television Drama, star names, web pages, and so on, voice assistant will give you a satisfactory answer. In addition to these, many new features have been added to LetvUI 3.0's voice assistant, such as querying flight information and train information.
As for the recognition rate of speech, it is still as accurate as ever. Movies, TV names, place names, and star names are almost all 100% correctly identified.
In addition to the LetvStore app store that existed before, LetvUI 3.0 also added a game center, and its icon is as large as the TV version of LeTV. It seems that LeTV is going to make a big fuss about the game. After entering, we discovered that it was actually a game social system. Similar to Apple's Game Center, it can record players' game points, and can play games with friends and share their own game achievements. Although there are game social systems on both Android and Apple smartphones, LeTV should be the first one on smart TVs.
The built-in Web browser of LetvUI 3.0 is also a major feature. After opening, you can find the default homepage with preset major video websites and smart TV application websites. These are exactly what smart TV users need most. In this browser, you can directly play the movie and TV drama of each video site, and you can also download the APP application and install it directly on the TV. The function is quite powerful.
Some brands of TV browsers will preset links to some news websites, but experience tells us that watching news on TV is not very suitable. Operation is far less convenient than on computers.
TV butler is also a very interesting application, which inherits a variety of functions, can clean up memory like a smart phone, can manage applications on the TV, can lock the TV, and so on. There are also two QR codes that guide the user to install a "multi-screen look" on the phone.
"Look at the multi-screen" is actually the former music as mobile assistant, with it you can turn the phone into a smart remote control, not only have all the features of the remote control, you can also enter text on the phone to the TV. Video push is another major feature that can be viewed on multiple screens. It can push network videos and local pictures to Super TVs. This solves the problem of restricted video sources for smart TVs.
In addition, LetvUI 3.0 also provides many practical applications, such as calendar app with lunar calendar and solar terms, and weather forecast app that can see air index. For multi-screen interactions, support for DLNA, Airplay, and Miracast can push pictures, videos, and music on smartphones directly to the TV. 1080p Express is a unique feature of LeTV. When using a computer to access LeTV or using a mobile phone to use LeTV, you can control the Super TV in your home to download a video. Different devices do not need to be in the same local area network. Mobile phones and Super TVs can use the same account.
From the product introduction, we learned that the X50 Air also features a large screen for small screens and 3D gaming functions. The former mirrors the screen on the TV to the mobile phone and controls the application and games of the TV using the touch screen of the mobile phone. The original Android game is presented in a 3D screen, and there are hundreds of games that support this function. However, the X50 Air engineering machine for this trial has not provided these two functions, so it cannot be experienced. In the future, we will introduce in detail.
Evaluation summary:
After a detailed trial of the X50 Air's engineering prototype, we felt that if we took it as an upgraded version of the S50, it was much more than expected - the screen was upgraded to 4K ultra-high-definition, the processor was upgraded to quad-core, and the form factor and workmanship were also improved. A grade higher. Therefore, we are more willing to regard X50 Air as a new product line between LeTV and S50 and X60.
As far as the product itself is concerned, X50 Air brings us a true 4K ultra-high-definition video source while providing us with ultra-high-definition visual enjoyment, a smooth user experience and a new intelligent UI system. This is something that all previous brands that launched 4K TV can't do it. This will allow X50 Air users to grab real-time 4K blockbusters ahead of others. We hope that LeTV will continue to introduce and produce a large number of 4K films, TV dramas, variety shows and sports programs to meet the needs of 4K TV users as promised at the conference.
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