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What is 4K LCD TV ultra high definition LCD TV

What is 4K LCD TV ultra high definition LCD TV

4K LCD TV Ultra high definition LCD TV

UHDTV, short for Ultra High Definition Television, is the next generation of HDTV technology. In May this year, the International Telecommunication Union (ITU) released recommendations for the "UHDTV" (or "Ultra HDTV") standard, which refers to TVS with screens with a physical resolution of 3840 x 2160 (4K x 2K) and above as Ultra HIGH-DEFINITION televisions. Compared with HDTV (High Definition Television), this technology has a higher resolution, a larger viewing Angle, with a stronger visual impact, to solve the large screen TV details lost, can not be true to restore the problem.

1, four times full hd fine

Existing HD HDTV displays are about 1 megapixels, FHD displays are about 2 megapixels (1920×1080), while UHD displays can reach more than 8 million pixels. Ultra high definition (UHD) has 6.22 million more pixels, four times that of full HD (FHD).

The incredibly delicate display with the extremely high resolution is comparable to the "retina display" of apple's IPHONE4. The original human eye at a distance of less than or equal to 0.3 meters, the limit resolution is 300PPI, apple Iphone4 retina screen is 1.09 times higher than the human eye resolution limit PPI. Skyworth ultra high Definition (UHD) is two times higher than the maximum PPI that human eyes can distinguish at four times the normal distance (four times the size) and nearly two times higher than Apple's standard.

2. Larger size for the same distance

When looking at an HDTV from the same distance, if the screen is too big, the human eye will see pixels. At the same distance, you can't see pixels at all on a UHD TV. Tests have found that the perfect size for HD TV is 32 to 37 inches, the perfect size for FHD TV is 42 to 55 inches, and the perfect size for ultra high Definition TV is UHD.

3, UHD single chip whole lossless UHD

UHD single chip can realize lossless decoding of the original 4K×2K video source, to achieve true full UHD, to achieve true full UHD.

4. 1080P/ 1080I intelligence is enhanced by 2.89 times

Thanks to the 4K ultra high inventory chip, uHD cloud TV can be compatible with 1080P/1080I full HD video sources. Through intelligent computing, image tracking compensation is implemented on the spatial axis plane, and four pixel points are inserted around each pixel point to accurately restore the horizontal and vertical row field information, with an improvement of 70% and an overall improvement of 2.89 times. Achieve approximately 4K ultra high definition display effect.

Improving resolution seems to be one of the most popular techniques in today's broadcast and commercial display technology, and it is now gaining popularity in the TV industry. While 4K(3840×2160) resolution is already available, a more recent 8K resolution (7680×4320) has been invented by Japan's NHK and tentatively named "Ultra HD".

-----------Justin chen 2021/07/10

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