What is 4K Resolution?

What is 4K resolution? It is a high-definition display technology offering a considerably high pixel density. Learn how it works and the various devices you need to use.
What is 4K Resolution?

4K resolution lets you see every detail of your favorite movie or video game in high precision, giving an immersive and memorable experience. The increased number of pixels provides clear and superficial pictures you need to enjoy your videos. 4K refers to a display's horizontal detail, usually 4000 pixels. This article discusses everything you need to learn about 4K resolution, including the equipment you need to get started.

An overview of 4K resolution

4K resolution is a digital video format offering a resolution of 3840x2160 pixels, which is higher than a full HD resolution. 4K displays can produce more vibrant and lifelike images, making it a considerable choice for high-quality video content such as movies, documentaries, and gaming. 4K content’s popularity is increasingly levitating as more and more devices are capable of displaying it, such as 4K televisions, computer monitors, and projectors. 2K resolution, commonly referred to as Quad HD (QHD), offers a resolution of 2560 x 1440 pixels which is still higher than the resolution of Full HD and provides a superior level of detail and precision in images and videos. 2K screens can produce invigorating and fine images and videos, making it an ideal choice for laptops and mobile devices. Although 2K resolution’s precision still lags behind 4K, it offers an immersive viewing experience and is cost-effective, making it accessible to the average consumer.

What's better, HD or 4k

HD or 4k

When looking for image quality, 4K resolution outshines HD. 4K displays have four times the number of pixels and offer detailed images with greater clarity than HD. The high pixel density offers a more engaging viewing experience, especially on large screens. Larger displays make the finer details in shape, edges, and textures more superficial. Also, 4K resolution prevents compromise on image quality, making it ideal for digital signage advertising and home theater systems. You may not notice the finer details of 4K resolution when working with content not in 4K or on smaller screens. Although this resolution is more costly than HD, it is worth it if you desire more realistic and lifelike content.

The impact of 4K resolution on filmmaking

The rise of 4K cameras has enabled filmmakers to capture scenes in exceptional detail, helping them create unique and engaging experiences for their audience. 4K resolution offers greater flexibility during post-production as you can manipulate, zoom, or crop footage to your liking without interfering with your 4K image quality. This technology can also enable you to push against the boundaries of screen possibilities since you can experiment with new styles and technologies.

What kind of cables do you need for 4K?

cables for 4K

4K resolution requires high-quality HDMI cables that handle the high bandwidth necessary for displaying 4K content. The acceptable choice for 4K displays is HDMI 2.0, as they can handle a bandwidth of up to 18 Gbps. These cables are ideal if you have a knack for gaming or watching movies in high-definition. HDMI 2.1 cables support a higher bandwidth of up to 48Gbps, which is necessary for 4k images with higher frame rates. However, it is not accessible on all devices, so checking your TV specifications before settling on an HDMI cable is crucial. Additionally, you may need to purchase a DisplayPort cable for your PC if it supports this connection. Some DisplayPort cables offer higher bandwidth than HDMI cables, although they are more suitable for commercial video walls and virtual reality than TVs.

Limitations of 4K resolution

The limitations of this technology include the following:

Requires high-end equipment

Despite its advantages, 4K resolution requires 4K-compatible displays, which can be expensive and difficult to access. Not all monitors and TVs are 4К compatible, meaning you may need to invest in 4K TVs with a hefty price tag.

Limited Viewing Distance

To appreciate the fine details of 4K resolution, you need to sit close to the screen. This may not be easy if the screen is mounted high on a larger room wall. Additionally, if you sit too close, the images may appear too clear, interfering with your watching experience. Therefore, it is crucial to consider placement to ensure that the audience has an optimal watching distance to appreciate the clarity of 4k content fully.

The limited difference in detail

Sometimes you may not recognize the extra detail in 4K resolution in certain scenarios. For instance, if you use small digital signage displays and sit far away, you may not notice the difference between 4K and HD resolution. Additionally, if the content on display is of poor quality, you may not enjoy the full experience of the resolution. For example, a poorly shot or poorly lit 4K video may differ from a well-shot and well-lit one.

Large file sizes

4K resolution size is larger than that of HD, considering that it has four times as many pixels as its counterpart, meaning it requires more transmission data and storage. If you have limited storage capacity or bandwidth, you may experience several obstacles in storing your 4K content. For instance, an HD movie may have a file size of 3GB, while a 4K movie can have a file size of 15GB, meaning it might take longer to stream or watch 4K content.

Limited availability of content

Although 4K monitors and TVs are becoming more accessible, most videos, movies, and TV shows are only available in lower resolutions like HD, meaning that even with a 4K TV, you may not be able to enjoy the full experience of higher resolution. The limited availability is partly due to the high cost of producing 4K content.


4K resolution is a noteworthy improvement in the display technology. The high pixel density provides a more interactive and visually appealing viewing experience, especially on larger displays. The high resolution allows for more accurate colors, finer gradients, and smoother details, making it ideal for digital signage content, video streaming, and gaming applications. Additionally, 4K resolution displays offer advanced features which allow you to zoom, crop, and alter contrast without interfering with the integrity of your content. However, the advantages of this technology fully rely on the viewing environment and the content on display. Although 4K resolution has a few limitations, it is becoming the standard for high-end displays. Integrate Look DS products with 4K resolution to pique your audience’s attention and transform your business.