It takes many years for a new technology to emerge from its emergence to maturity. It is a 4K TV set that is now sweeping around the world. It has been available since 2012, but it was only gradually accepted by users in 2014. Soon 2015 will come. People will have higher requirements for 4K TVs. Which standard 4K TV materials can be purchased? Let's take a look together.
One, 4K image quality processing engine and H.265 encoding
The quality of the video has been upgraded from 1080p to 4K, and video capacity has inevitably increased dramatically. This is one of the biggest problems that hinder 4K video production and distribution. Therefore, the International Telecommunication Union stated that all 4K televisions should adopt the latest H.265 video coding. The past H.264 video coding has been unable to meet the requirements of 4K video, and will be gradually eliminated by the HEVC coding format.
In the future, H.265 decoding technology will play an important role in 4K. Samsung UHD, Xiaomi TV 2, and LeTV 4K TV all support HEVC H.265 decoding function. Compared with the existing image quality, H.264 encoding technology, the new HEVC H.265 encoding video size will be reduced by about 40 to 50%, is conducive to the circulation and popularity of 4K video content, whether it is network 4K video resources or future Blu-ray 4K encoding technology, are not separated Open HEVC H.265 figure.
The application of this standard requires a 4K TV with a 4K image quality processing engine to provide support. Without the support of power, talk about H.265 encoding and decoding.
Second, the new HDMI2.0 and USB3.0 high-definition interface
The new HDMI 2.0 interface completes support for the 4K format while adding 21:9 aspect ratio support and up to 32 channel support. The current mainstream HDMI 1.4 interface can also support 4K resolution, but 10.2Gbps bandwidth can only output 30FPS frame rate at 3840×2160 resolution, which is obviously not enough to deal with local 4K video playback and 4K games.
Only through the USB3.0 interface can you quickly transfer the local 4K ultra-high-definition content, which should be achieved through a 4K television.
The latest HDMI 2.0 upgrades the transmission bandwidth to 18 Gbps in one stroke, and the resolution of 3840×2160 can achieve 50 FPS and 60 FPS frame rate, which not only solves the problem of 4K display output, but also adds many technical features. In the next 5 to 10 years, HDMI 2.0 will Big hair shines. At present, many 4K TV brands including Xiaomi TV 2, LeTV, LG TV, Sony TV, and Samsung TV have adopted this standard interface.
Third, 4K screen true and false
When it comes to 4K TV purchase standards, actually did not mention "RGBW pseudo 4K LCD panel", in fact, in the coming 2015, RGBW pseudo 4K LCD panel momentum do not have to worry too much, so the mainstream 4K TV will basically use RGB True 4K LCD panel. For example, the well-recognized cost-effective millet TV 2 and LeTV 4K TVs use RGB true 4K LCD panels, and the consumer market is unable to accommodate RGBW pseudo 4K LCD panels.
Of course, this does not mean that the RGBW pseudo 4K LCD panel will completely disappear. This kind of inferior LCD panel will still survive in the market, but only the entry-level 4K TV will be used. We know that the configuration of the entry-level 4K TV is relatively miserable, the audio specifications must not meet the standards we expect, and the interface may not be able to keep pace with HDMI 2.0.
Fourth, 4K TV purchase not only see picture quality, but also sound quality
4K TV has a resolution of 3840×2160 ultra-high definition, four times as high as 1080p Full HD. However, if the audio part is dragged down, the overall experience will be greatly reduced. Fortunately, more and more TV manufacturers are realizing that 4K TVs need to increase audio specifications.
In order to match the ultra high-definition picture quality of 4K TV, Xiaomi TV 2 has an independent speaker system. Although Xiaomi intended to use the independent speaker system to make a fuss, and the method is also extreme (not everyone can accept the independent speaker system), so Xiaomi launched a version without independent speakers, but the audio experience was dragged back. Therefore, in 2015, Xiaomi TV not only wanted to upgrade the interface standard, but also needed to improve audio specifications.
The same TV as LeTV's first 4K TV, X50 Air in the case of the ordinary version of the increase also added an art package, an increase of a group of 20 watts bass unit, the total audio power up to 40 watts, which in many 4K TV In the mid-to-top level, LeTV's first 4K TV has realized the importance of the audio experience for newer TV brands.
V. 4K TV Quality White Paper
After nearly one year's promotion of 4K ultra-high definition television certification, currently through the 4K television quality white paper certification of a total of Skyworth, Hisense, Konka, TCL, Changhong, Haier, Tsinghua Tongfang, BOE, Sony, Samsung, lg, Sharp, Philips, etc. 16 There are 66 TV models of the brand, of which, Skyworth 8 4K TVs have passed the certification and become the most domestic companies that have passed 4K ultra high definition television certification.
One, 4K image quality processing engine and H.265 encoding
The quality of the video has been upgraded from 1080p to 4K, and video capacity has inevitably increased dramatically. This is one of the biggest problems that hinder 4K video production and distribution. Therefore, the International Telecommunication Union stated that all 4K televisions should adopt the latest H.265 video coding. The past H.264 video coding has been unable to meet the requirements of 4K video, and will be gradually eliminated by the HEVC coding format.
In the future, H.265 decoding technology will play an important role in 4K. Samsung UHD, Xiaomi TV 2, and LeTV 4K TV all support HEVC H.265 decoding function. Compared with the existing image quality, H.264 encoding technology, the new HEVC H.265 encoding video size will be reduced by about 40 to 50%, is conducive to the circulation and popularity of 4K video content, whether it is network 4K video resources or future Blu-ray 4K encoding technology, are not separated Open HEVC H.265 figure.
The application of this standard requires a 4K TV with a 4K image quality processing engine to provide support. Without the support of power, talk about H.265 encoding and decoding.
Second, the new HDMI2.0 and USB3.0 high-definition interface
The new HDMI 2.0 interface completes support for the 4K format while adding 21:9 aspect ratio support and up to 32 channel support. The current mainstream HDMI 1.4 interface can also support 4K resolution, but 10.2Gbps bandwidth can only output 30FPS frame rate at 3840×2160 resolution, which is obviously not enough to deal with local 4K video playback and 4K games.
Only through the USB3.0 interface can you quickly transfer the local 4K ultra-high-definition content, which should be achieved through a 4K television.
The latest HDMI 2.0 upgrades the transmission bandwidth to 18 Gbps in one stroke, and the resolution of 3840×2160 can achieve 50 FPS and 60 FPS frame rate, which not only solves the problem of 4K display output, but also adds many technical features. In the next 5 to 10 years, HDMI 2.0 will Big hair shines. At present, many 4K TV brands including Xiaomi TV 2, LeTV, LG TV, Sony TV, and Samsung TV have adopted this standard interface.
Third, 4K screen true and false
When it comes to 4K TV purchase standards, actually did not mention "RGBW pseudo 4K LCD panel", in fact, in the coming 2015, RGBW pseudo 4K LCD panel momentum do not have to worry too much, so the mainstream 4K TV will basically use RGB True 4K LCD panel. For example, the well-recognized cost-effective millet TV 2 and LeTV 4K TVs use RGB true 4K LCD panels, and the consumer market is unable to accommodate RGBW pseudo 4K LCD panels.
Of course, this does not mean that the RGBW pseudo 4K LCD panel will completely disappear. This kind of inferior LCD panel will still survive in the market, but only the entry-level 4K TV will be used. We know that the configuration of the entry-level 4K TV is relatively miserable, the audio specifications must not meet the standards we expect, and the interface may not be able to keep pace with HDMI 2.0.
Fourth, 4K TV purchase not only see picture quality, but also sound quality
4K TV has a resolution of 3840×2160 ultra-high definition, four times as high as 1080p Full HD. However, if the audio part is dragged down, the overall experience will be greatly reduced. Fortunately, more and more TV manufacturers are realizing that 4K TVs need to increase audio specifications.
In order to match the ultra high-definition picture quality of 4K TV, Xiaomi TV 2 has an independent speaker system. Although Xiaomi intended to use the independent speaker system to make a fuss, and the method is also extreme (not everyone can accept the independent speaker system), so Xiaomi launched a version without independent speakers, but the audio experience was dragged back. Therefore, in 2015, Xiaomi TV not only wanted to upgrade the interface standard, but also needed to improve audio specifications.
The same TV as LeTV's first 4K TV, X50 Air in the case of the ordinary version of the increase also added an art package, an increase of a group of 20 watts bass unit, the total audio power up to 40 watts, which in many 4K TV In the mid-to-top level, LeTV's first 4K TV has realized the importance of the audio experience for newer TV brands.
V. 4K TV Quality White Paper
After nearly one year's promotion of 4K ultra-high definition television certification, currently through the 4K television quality white paper certification of a total of Skyworth, Hisense, Konka, TCL, Changhong, Haier, Tsinghua Tongfang, BOE, Sony, Samsung, lg, Sharp, Philips, etc. 16 There are 66 TV models of the brand, of which, Skyworth 8 4K TVs have passed the certification and become the most domestic companies that have passed 4K ultra high definition television certification.
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