Describing a 3440x1440 monitor as 4K and 2K is incorrect when discussing screen resolutions.

When discussing the pixel count of a screen, humans also use K to express the number of pixels horizontally. While not entirely accurate, it serves as a close approximation, aiding in determining the display resolution level. FullHD, 4K, or 8K not only represent the horizontal pixel count but also indicate the developmental stage of the screen.

While TVs follow standards such as FullHD, 4K, and 8K resolutions, computer monitors diverge with some adhering to these standards while others opt for different resolutions. Additionally, computer screen aspect ratios do not strictly adhere to the 16:9 ratio like TVs, but instead, they vary.

Even tiny smartphones boast resolutions comparable to TVs and computer monitors. Due to their diverse aspect ratios and rapid development, they contribute to a world of varying resolutions and aspect ratios, moving away from the standard FullHD, 4K, and 8K resolutions as well as the 16:9 aspect ratio.

Pixel Density (PPI)

In 2010, Apple introduced the iPhone 4 along with the Retina display concept. According to this concept, when you look at a screen without seeing individual pixels, Apple calls it Retina. Since then, Apple has followed the Retina path, focusing on pixel density rather than adhering to the FullHD, 4K, or 8K concepts like other companies. Apple's current products boast a PPI (Pixels Per Inch) above 320 for smartphones, over 264 for iPads, and above 216 for computers, meeting the Retina standard. Currently, Apple has 'Retina-ized' all their display screen products. This means that when you use any Apple device, you won't perceive individual pixels or pixelation on the screen.

Nowadays, our concern is not just about FullHD, 4K, or 8K, but about pixel density. Because simply having the same FullHD or 4K resolution doesn't translate equally across different screen sizes like 6 inches versus 27 or 60 inches. At this point, the terms 4K or 8K fail to convey the screen's ability to depict details accurately. Despite being easier to market, they fall short compared to PPI (Pixels Per Inch).

Beyond FullHD, 4K, 6K, and 8K, the evolution of screens has led to various resolutions, especially in the realm of smartphones and computer displays. However, due to the vast array of smartphone models and their abundance, people have almost lost interest, and most smartphones now boast a PPI of over 320. Consequently, discussing screen resolutions has become irrelevant and obsolete for promotional purposes.

When it comes to TVs nowadays, the focus is mainly on two resolutions: 4K and 8K. While many high-end TVs have embraced 8K, 4K remains prevalent among the majority of TVs. Currently, people are more concerned about TV size and panel technology rather than resolution.

Computer displays are currently one of the most dynamic and vibrant areas, as they not only feature resolution and pixel density but also screen aspect ratios and refresh rates. Computer screen aspect ratios have evolved beyond the traditional 16:9 to include 21:9 and even 32:9.