With the development of the economy, technology is becoming more and more developed. In this high-quality social life, everyone hopes to have a high-quality living environment, and having a 4K TV set should be regarded as a reflection of the quality of life. So what? Is it a 4K TV? How to identify the true and false 4K TV? The following decoration home decoration network Xiaobian will answer for you one by one, hoping to help everyone.
What is a 4K TV?
4K TV is a TV with 4K resolution. As a new-generation TV product, 4K TV adopts a new generation of high-definition 4K technology and a large screen. 4K resolution is 3840×2160 pixel resolution, which is 4 times of 2K projector and HDTV resolution, and belongs to ultra high definition resolution. At this resolution, the viewer will be able to see every detail in the picture, each with a close-up. 4K TV has already appeared in the Chinese market. Although the current high-end price is expensive, with the participation of many domestic TV manufacturers, the pace of 4K TV entry into the lives of the people is also accelerating.
4K technology is a higher resolution ultra high definition display specification. Under this specification, the progressive scan line of the display device can reach 2160, which is what we often call 2160P. The common display device aspect ratio is 16:9, then the resolution of the common 4K display device is 3840*2160. The total number of pixels in this resolution reaches 4 times of the HD resolution 1920*1080, so it is called It is 4K.
How to identify the true and false 4K TV?
A few years ago, when 4K TVs were first introduced, some models were only equipped with 4K screens. The built-in chips did not have 4K video playback capability, or the decoding format was incomplete. It was rejected by the industry as “fake 4Kâ€.
In the 1080p era, the H.264 video encoding format is the mainstream, but after entering the 4K era, H.265 is the encoding format for 4K. According to the technical data, H.265 encoded video files of the same definition are only half of H.264, which brings convenience for network transmission or file storage. If the 4K TV does not support playback of 4K video in H.265 format, it can basically be characterized as "fake 4K", which will be very embarrassing after H.265 becomes mainstream in the future.
Another recent "fake 4K" is on the screen. This type of screen uses a method in which adjacent pixels share sub-pixels to reduce costs. The entire screen has a total of more than 6 million pixels, while a real 4K screen should have more than 8.2 million pixels.
For the former fake 4K, we can read the product information carefully, if you mention support for H.265 format 4K decoding, then don't worry. A more secure way is to download the 4K short video in H.265 format online, install it with a USB flash drive, and bring it to the store for field testing.
The latter type of fake 4K is very confusing, because it is difficult for the naked eye to distinguish between 6 million pixels and 8 million pixels. And because the current 4K standard is not strict, such TV sets can also be labeled with 4K Ultra HD. The only way to identify it right now is to see if it has the words "RGBW" in its promotional materials or screen specifications. The normal 4K TV pixel arrangement is RGB mode, and the pixel arrangement of this screen is a unique RGBW mode.
The above is what the small series brings to you is a 4K TV? How to identify the true and false 4K TV? I believe that everyone has a basic understanding of 4K TV after reading this article. If you want to know more about decoration consultation, please click to enter the decoration knowledge channel.
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