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High Definition (SD, HD, 4K and 8K)

HD is the new TV experience; realistic and unparalleled picture quality. In this article we will explain the High Definition formats of SD, HD, 4K and 8K.

High Definition is the new television experience; Unparalleled picture quality, the most realistic ever. Or not? Development is going very fast and so we are already ready for higher resolutions.

What are the benefits of High Definition?
1. Much better picture quality.
2. Incredibly rich colors.
3. Fantastic sharp image.
4. Breathtaking detail.

The big advantage of High Definition is the larger number of picture lines, which provides a clearly sharper image, especially to be seen on the increasingly larger LCD and plasma TVs. High Definition has 720 or 1080 picture lines (720 is mainly used for TV broadcasts and 1080 for Blu-Ray material) and has an aspect ratio of 16: 9. Besides the fact that the resolution is higher, the possibility of the number of colors to be displayed is also much greater.

High Definition (SD, HD, 4K and 8K)

Upscaling (upconverting)

Upscaling, also called upconverting, means that a signal is converted to a higher resolution. Upscaling content does not ensure that ordinary DVDs (which have a standard resolution, SD, of 576 TV lines) are made High Definition (1080 TV lines). The extra resolution is in fact generated by software, and was not present in the original material. This function certainly has its advantages when watching a DVD on an LCD or plasma screen, because the image looks sharper after this operation than if it were displayed at the SD resolution. More and more DVD / Blu-ray players and HD TVs offer the possibility to upgrade the signal with upscaling.

Ultra HD

The term Ultra HD recently encompasses two resolutions. Previously, the 4K (Quad HD) and 8K (Ultra HD) resolutions were still referred to by different names, but the International Telecommunication Union has decided to have both resolutions under the same heading; Ultra HD. Below you will find information about both the 4K Ultra HD and the 8K Ultra HD resolution.

4K Ultra HD

4K Ultra HD is a standard that enables higher resolutions for LCD and OLED TVs. 4K Ultra HD has a resolution of 3820 x 2160 pixels. Ultra HD is also referred to as 4K because it displays 4x the pixel count of our current, 1080p, HDTV standard (a standard better known as  Full HD ). Quad Full High Definition (4K Ultra HD actually) is the next step in high-resolution display technology. The first 4K Ultra HD TVs have now appeared on the market.

Read more about 4K Ultra HD .

8K Ultra HD

The only higher format (higher than 4K Ultra HD) in the pipeline is 8K Ultra HD. This new standard has a resolution of 7680 x 4320 pixels, which is 16 times higher than the resolution of Full HD that we mainly know now. Besides the great added value in video / image quality, 8K Ultra HD also offers much better audio quality. As many as 24 audio channels can be used with this new technique. This audio can also be reproduced on 24 speakers.

High Definition (SD, HD, 4K and 8K)

8K Ultra HD was developed by a Japanese public broadcaster called NHK, together with the Japanese government. These parties expect that 8K Ultra HD will be introduced in TV broadcasts in 2020. At the moment only two cameras in this world can record in 8K Ultra HD and therefore only 20 minutes in a whole day. Despite all this, our entire infrastructure is currently totally unsuitable for 8K Ultra HD.

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