The world’s first Ultra HD 4K TV has been on the market for 3 years. 4K TVs have higher fidelity visual effects, and the screen is clearer and sharper. Therefore, more and more consumers will consider buying a TV when they purchase a TV. Stylish and functional 4K TV. So, how to choose a perfect 4K TV?
Is there a mature 2K to 4K technology is the key
It is understood that 4K TVs must be equipped with a professional-grade UHD Ultra HD display with a physical resolution of 3840×2160 and pixels of 8.294 million. When the hardware meets the requirements, the software must keep up.
However, the lack of 4K sources for home TVs requires a good 4K TV to have a mature 2K to 4K technology to make up for the lack of the market. Consumers can feel the color after conversion in the store. Image effect.
H.265 is an important standard for purchase
From DVD to Blu-ray, from 1080P to 4K, as video content becomes clearer, video capacity is also increasing, which requires that 4K TVs must have video decoders that match them.
Recently, the International Telecommunication Union (ITU) stated that all 4K televisions should be equipped with HEVC (that is, H.265) video coding function. In the past, H.264 video coding has been unable to meet the requirements of 4K video, and will be gradually encoded by HEVC. Eliminated. H.265 can better compress the video, giving the consumer a more perfect visual experience in terms of image color performance and smooth video.
HDMI2.0 interface brings a smoother visual experience
It is understood that many 4K TVs currently on the market are equipped with high-speed transmission ports of HDMI 1.4, data bandwidth is 10.2Gbps, and the output can only reach 30FPS frame rate. The new HDMI2.0 ultra-high-speed transmission port can increase the transmission bandwidth to 18Gb-ps, can achieve 50FPS and 60FPS frame rate, to ensure that the picture is more stable, fully meet the output requirements of 4K TV. However, it is currently only applied to some high-end 4K TVs and is expected to become mainstream in the next few years.
Perfect audio and video experience depends on "listening"
The visual enjoyment has reached 4 times of 1080P, so the audio naturally can not be inferior. The reporter learned from Gome that, compared to the past, the new 4K TVs of various brands have generally been upgraded in terms of audio hardware. Sony is equipped with “magnetic fluid speakers†and the concerned millet TV 2 is equipped with a stand-alone audio, while LG High-end 4K TVs use 4.1 sliding speakers, and LeTV even uses a 20-watt subwoofer. Therefore, if consumers want to buy a 4K TV that is more suitable for them, they can't just “do not listenâ€!
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