The Difference Between 4K and UHD

Posted on Thursday, January 21, 2016

Once in a while, a promising technology that proves to be beneficial in so many ways emerges in the market. This technology will be used in different innovations and sold to consumers. One example of this is LED display. LED screen is utilized in Philippines to serve several purposes such as in advertisements, corporate events, marketing strategies, education purposes, and information dissemination.

There are different screen displays in the market, two of which are 4K and UHD. At times, people go out and purchase a display without even knowing which is best suited for their needs. Before buying a screen display, try to understand the difference between 4K and UHD first.

4K LED Wall

What is a 4K Display?

People seem to confuse 4K with UHD and vice versa. You have probably come across an article where the writer pertains to 4K and UHD as if they are one and the same.

4K display is a professional production, a standard developed by the cinema. It has a resolution of 4096 by 2160 (horizontal: vertical) at an aspect ratio of 1.9:1– the aspect ratio in which most films are shot.

The term 4K was born because of the Digital Cinema Initiatives (DCI), a group of motion picture studios. 4K refers to several things, one of which is resolution. Its resolution of 4096 by 2160 is four times the previous digital editing standard. In addition, 4K also pertains to the fact that the horizontal pixel count of its specs is around four thousand.

 What is UHD?

UHD is sometimes called as Ultra HD or Ultra High Definition and it operates at a slightly lower resolution. While 4K is a cinema standard, Ultra High Definition is a broadcast standard. This screen display is created using the standard HDTV aspect ratio of 16:9 (around 1.78:1) and has a resolution of 3840 by 2160.

Ultra High Definition is like the upgraded version of a full HD – which has a resolution of 3840 by 2160. It has two variants – 3840 by 2160 and then  7680 by 4320. Sometimes, these two are referred to as 4K UHD (for the former) and 8K UHD (for the latter). This might be one of the reasons why UHD displays are sometimes referred to as 4K screens even if the resolution is not 4096 by 2160.

4K and UHD

In truth, even if there is a difference between the screen resolutions of 4K and UHD displays, it doesn’t necessarily affect your viewing experience.  4K content is still perfectly viewable in UHD displays. Also, there are plenty of materials that are not shot in 4K content.

There are several standards needed for you to truly enjoy watching 4K. Aside from owning a 4K display, you also need 4K content. This means encoding your content based on the following format: JPEG2000, bitrate of up to 250 Mbps, and 12-bit 4:4:4 color depth.

4K and UHD are different from one another despite being marketed as the same thing. Despite this fact, getting either of the display does not necessarily affect your viewing experience. In the end, they’re both upgrades from the basic HD displays and can serve your purpose effectively.

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