In short (click here for detailed version)

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In detail, for those interested!

Optimal geometric structure for pixel organization

Square pixels fit perfectly together, without leaving any empty or unused space between them. It's like bricks in a wall: the square shape allows for an optimal and obvious arrangement. If you try a round shape, you'll quickly see that it creates lost and irregular spaces. This undermines display density, causing wasted useful space and a loss of sharpness. The square shape offers a regular, simple, and logical geometry, ideal for organizing and precisely controlling each displayed image point.

Simplified industrial process for square pixels

Building square pixels is simply more practical from an industrial standpoint. With square shapes, screen manufacturers can cut, assemble, and arrange pixels using simpler and less expensive industrial machines. A square pixel is easy to manufacture, with less material waste and many fewer technical complications. Imagine having to precisely align thousands of round pixels: it would quickly become complicated, costly, and prone to errors. As a result, square pixels make manufacturing and quality control easier, faster, and more economical. Less spending, fewer defects—it's a choice that benefits everyone.

Compatibility with software and hardware standards

The choice of square pixels has become obvious because it's really simple for software and hardware. All graphical interfaces, operating systems, or apps work on a rectangular grid. And a grid, well, it works better with squares. Each pixel is a small logical cell that displays exactly in its place without any hassle. Basically, there's no need to adapt any calculation or display to rounded shapes. Graphics cards easily handle a row/column structure, so there's no need to reinvent the wheel; square pixels are just the solution that makes sense to everyone.

Increased efficiency in terms of space and consistent display

Square pixels maximize screen surface area: they fit perfectly side by side, leaving no empty spaces. In contrast, with round shapes, you would inevitably end up with lost spaces between the circles, thus reducing the ability to display information. Square pixels also ensure a more satisfying visual uniformity: when they are aligned, they create a regular grid that facilitates reading and prevents image distortion. For the user, this means a more coherent and enjoyable experience, with a screen that makes the most of every available square millimeter.

Technical advantages in terms of visual rendering and energy

Square pixels provide a sharper visual display because the straight edges fit perfectly against each other, thus avoiding the dead spaces that round pixels would leave. As a result, they allow for a more accurate image reproduction, minimizing visual loss and blurriness. With square shapes, it is much simpler and quicker to light up each pixel accurately. Consequently, screens consume less energy: we don't waste electricity unnecessarily with partially lit areas. Essentially, a square pixel is the best option for effectively displaying sharp images while limiting both energy and visual fatigue.

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Frequently Asked Questions (FAQ)

1

Do square pixels influence the quality of displayed images?

Yes, the square shape of pixels facilitates uniform alignment of colors and details, allowing for a more accurate and consistent display. Their regular arrangement directly contributes to clarity and sharpness, and simplifies digital image processing.

2

What are the disadvantages of using differently shaped pixels, such as circular or hexagonal ones?

Using circular or hexagonal pixels would lead to increased complexity in the industrial process and software management, as well as wasted space between each pixel. Moreover, it would introduce challenges in graphical calculations and could compromise overall display clarity.

3

Would a screen with round pixels be technically feasible?

Technically, yes, creating screens with round pixels is feasible. However, these screens would lose spatial efficiency, leaving unused spaces between the pixels. Software management would also be complex, as traditional graphic processing relies on a grid layout to simplify visual rendering.

4

Why does my HD screen display visible pixels up close?

The higher the pixel density (referred to as dpi or ppi), the less visible the individual pixels are. If your HD screen displays visible pixels up close, it is generally due to a lower pixel density, which is common on certain large HD screens or on screens designed for specific purposes.

5

Are there screens with round pixels or different shapes?

Special screens exist with non-square pixel shapes, particularly for specific uses such as OLED displays or certain experimental applications. However, the square format remains dominant due to its industrial simplicity, software compatibility, and display space optimization.

6

Do all display formats exist in square or rectangular shapes?

The majority of display standards are rectangular for practical reasons related to spatial organization and compatibility. However, there are certain technologies or display devices that are rounded or have irregular shapes, dedicated to specific applications (such as smartwatches, car screens, or art installations), but their internal pixels often remain square.

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