WHAT IS A 4K UHD SCREEN?

Have you heard about UHD screen and wondering what it is? What are the advantages ? Why do we often talk about screens not only HD, but also 4K? Find out the answer to all your questions in this ultra-complete buying guide.

UHD and 4K, what are the differences? 

UHD and 4K screens are often grouped under the same name (UHD or a 4K screen and 4K for a UHD screen). These are in fact two types of very high definition PC or television screens. A UHD screen, however, is not exactly a 4K screen. The UHD (Ultra High Definition) standard guarantees a definition of a minimum of 3840 pixels by 2160. The term 4K ensures a minimum of 4096 pixels in length. So, stamping a UHD television with less than 4096 points with the 4K acronym is a marketing shortcut. The 4K ratio used in cinema corresponds to 4096 It is therefore biased to speak of 4K UHD when the number of 4096 pixels in length is not reached. But this kind of confusion goes with the term "resolution" instead of "definition", these terms are commonly misused.

Resolution or definition?

The definition refers to the number of pixels contained on the entire surface of the screen (number of pixels in width X number of pixels in length). The resolution provides information on the quality of the image by taking into account the size of the screen (in inches) in relation to its definition.

4K or UHD?

THE 4K 

4k screens have a minimum of 4096 pixels lengthwise, which is more pixels than a classic UHD format. 4k displays offer more visual detail than an HD format. They give many details in colors, textures and offer a beautiful contrast. 4k displays are high-performance UHD displays.

UHD

Ultra High Definition or UHD is a screen resolution that is increasingly common in the television market. UHD screens have a definition of 3840 x 2160 pixels, or double the pixels of a Full HD screen. They display 4 times more images than this technology and offer sharper images. 

4k technology UHD television

All brands today offer LED, HD, full HD screens. UHD screens and 4K TV have been very popular in recent years. The latter will soon be surpassed by 8K which achieves image quality close to perfection. Among 4k ultra HD TVs we find other categories of UHD LED televisions such as OLED and QLED screens.

4K OLED TVs

So what is this new OLED acronym? We already knew the term LED since LCD panels gradually replaced their neon tubes with this type of backlighting using Electroluminescent diodes. The O placed in front of this acronym is the initial of the term “organic”. Indeed, an OLED LED screen is a UHD TV whose diodes operate independently, without backlighting, being able to illuminate naturally depending on the electrical intensity received. Image quality, contrast, colors and ultra-fast response time are the main qualities of OLED technology. Furthermore, you will see curved OLED screens even more easily due to their great malleability. Sony did well by being the first to market this incredible technology.

4K QLED TVs

The UHD QLED TV works using quantum dots, the “Q” therefore taking up the initial of the word. Quantum is also the name of the box capable of upscaling content of a quality lower than 8K, from 4k but also HD sources. In this new model of 4k UHD tv and 8k UHD tv, backlighting is back, but the price drops slightly compared to UHD OLED. The list of qualities that UHD QLED incorporates is long!

IPS or VA panel?

So-called IPS panels, for In-Plane Switching, use liquid crystals aligned parallel to the axis of the screen without electrical transmission. A VA panel, on the other hand, has crystals perpendicular to the screen plane. This affects the management of brightness and the depth of blacks.

How to choose the right 4K UHD screen?

The panel: a high screen resolution must be highlighted by an appropriate panel. Also, we strongly recommend that you opt for an OLED or QLED screen (high-end panels) to enjoy breathtaking images. VA panels may be suitable for occasional and family use, TN panels for gamers and IPS panels for fans of deep colors.

Screen dimensions: UHD or 4K means large screen. A minimum of 20 inches is recommended.

The refresh rate and response time: they must be respectively as high and as low as possible. These two settings combined help reduce your screen latency and ensure your data is displayed quickly.

The type of screen: flat or curved (curved for a better viewing angle and relief on the eyes).

Connections: cables allow information to be routed from your PC to your screen more or less efficiently. The available cables are, in their order of performance, VGA, DVI, USB and HDMI cables (HDMI 1.4 at least for fast image loading and perfect quality). These must be compatible with the ports on your central unit.

Features: anti-blue light filter, height-adjustable stand, possibility of rotating the screen or hanging it on the wall, etc.

The brand and the range. : ASUS, ACER, AOC, Toshiba, Samsung, Philips, Lenovo… There are a multitude of brands of UHD PC screens. The latter offer numerous models, more or less efficient, sold at all prices.

The design: color, shape, style… It’s up to you to choose according to your tastes and desires of the moment.

UHD or FHD?

Are you hesitating between UHD or FHD formats? You may be tempted to choose without hesitation the UHD format which has more pixels. However, we advise you to think about your needs. An FHD screen is indeed more than sufficient for the majority of users. They offer very beautiful images and incomparable visual comfort. UHD screens are even more efficient, but not at all suitable for small screen sizes. If you have little space in your living room or office, it is better to opt for an HD or FHD screen rather than a 4K or UHD screen. Finally, note that you will need a UHD monitor if you want to play 4K or UHD Blue-Ray, the new best video formats of the moment.

Find your 4k UHD screen at WILL BASILEIA

Tempted by a largeHD 4K television with premium quality at a low price? It’s possible at Électro Dépôt. Discover our good deals and go home with your purchase under immediate availability. Take the opportunity to equip yourself with a Display port or HDMI cable compatible with your camera. Browse our video, computer, video games departments... The biggest brands (Philips, Samsung, Sony, TCL, LG, etc.) are available and even our own brand: Edenwood, which offers extremely competitive value for money. Our products (excluding reconditioned ones) are guaranteed for two years. Need more precision? Consult our experts who will guide you towards the 4K screen of your dreams!

Which brand of UHD screen will you choose? An HP widescreen? A Lenovo screen? A iiyama prolite UHD screen? A Benq monitor? A Samsung HDR screen? A screen compatible with your Windows or Apple PC? Discover our selection of new products guaranteed for two years sold at the best price to compare the different models and make your choice. All our computer screens can be collected in store, at a collection point or delivered directly to your home.

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