The Advantages Of 4K Resolution, As Well As The Difference With UHD & HDR

Image illustration with 4K resolution (photo: T_ushar-Pixabay)

YOGYAKARTA Many electronic products circulating on the market today offer 4K resolutions. So, what are the advantages of the 4K resolution?

Before answering the question, it's a good idea to know the meaning of the 4K resolution.

Adapted by VOI from the Ubergizmo page, Friday, October 22, 2022, the 4K resolution is a screen device with a horizontal resolution of around 4000 pixels and a vertical resolution of 2000 pixels.

While the meaning of resolution is a term that tells you how dense these small points are called pixels, put together on the screen.

The advantages of the 4K Resolution

In general, the image quality with a resolution of 4K is 4096 x 2160 pixels. However, other resolutions around these values are also commonly called 4K as well.

The image quality at 4K resolution is much sharper than the quality of the 1080p High Definition (HD) resolution image. This means that electronic devices such as televisions with 4K resolutions have clearer images and details thanks to the greater pixel density.

4K resolution rollout is clearly visible, especially on widescreened television. For example, if you compare the quality of traditional full HD 65 TV with 4K 65 UHD TV, you will know the difference between the pixels that form the screen.

TVs that have high resolution, have smaller pixels than low-resolution TVs of the same size.

That way, you can enjoy a more thorough picture or video without any visibility and close viewing without realizing the appearance of each pixel.

Different 4K Resolutions with Ultra High Definition (UHD)

The fundamental difference between resolution 4K with Ultra High Definition (UHD) is that resolution 4K is the standard for production and professional cinemas. While UHD is the standard for consumer viewing and broadcasting.

The mention of the term 4K originated from the Digitak Initiatives (DCI) a film studio consortium that standards specifications for the production and projection of 4K content digital.

What is meant by 4K here is 4,096 x 2,160 pixels and exactly four previous standard times for digital editing and projection, which is 2K alias 2048x1,080 pixels.

The 4K standard is not only for resolution, but can determine how 4K resolution content is encoded.

The DCI 4K flow compression uses JPEG 2000, and has a bitrate of up to 250 Mbps, and uses 12-bit color depth (4:4:4).

Meanwhile, Ultra High Definition (UHD) is the next stage called full HD, the official term for resolution of 1,920 x 1,080 pixels.

UHD will double the resolution to 3,840 x 2,160 pixels. This is different from the 4K resolutions made above. However, almost every 4K advertised electronic device is actually UHD.

Even so, there are a number of panels out there that offer a resolution of 4,096 x 2,160 pixels with an aspect ratio of 1,9:1.

Different 4K Resolutions with High Dynamic Range

Quoted by VOI from PCMag, Friday, October 21, 2022, the term HDR is High Dynamic Range (HDR) often considered the same as 4K. In fact, both have real differences.

Citing BenQ, HDR is a technology that produces large contrasts of images between bright and dark colors. HDR is included in the most frequent type of content in 4K that expands the range of color and light that can be displayed.

Content produced in HDR format, has a wider and more detailed value of brightness, darkness, and color levels than standard dynamic range content.

If the 4K resolution determines the number of pixels in the video, then the HDR determines how much light and color each pixel displays. Even so, not all 4K content is HDR. Thus the information about the advantages of 4K resolution and the difference between UHD & HDR