In the digital age, LED display screens have become an important carrier of information dissemination and visual display with their excellent display effects and wide application scenarios. However, faced with a wide range of resolution options, such as standard definition, high definition, full high definition, ultra-high definition, 4K and even 8K, consumers are often confused. Today, we will take a scientific journey of resolution knowledge to help you make wise decisions when choosing LED display screens.
Smooth, standard definition, high definition, full high definition and ultra-high definition: a step-by-step leap in clarity
What is smooth resolution？
Smooth resolution (below 480×320): This is the most basic resolution level, common in early mobile phone screens or low-resolution video playback. Although it can meet basic viewing needs, on LED display screens, such resolution obviously cannot meet the needs of modern visual experience.
What is standard definition resolution？
Standard definition resolution (640×480): Standard definition, that is, standard definition, is a common resolution for early television broadcasts and DVDs. On LED display screens, although it has improved compared to smooth resolution, it has become inadequate in the era of high definition and is suitable for some occasions where picture quality is not required.
What is HD resolution？
HD resolution (1280×720): HD, also known as 720P, marks a significant improvement in video clarity. It can meet most daily viewing needs, especially on smaller screens such as laptops or some compact LED displays.
What is full HD resolution？
Full HD resolution (1920×1080): Full HD, or 1080P, is one of the most popular HD standards. It provides delicate picture details and excellent color performance, making it an ideal choice for watching HD movies, sports events and conducting professional presentations. In the field of LED displays, 1080P has become the standard for mid-to-high-end products.
What is ultra-high-definition resolution？
UHD resolution (3840×2160 and above): Ultra-high definition, referred to as 4K and above, represents another leap in video technology. 4K resolution is four times that of 1080P, which can present finer picture details and deeper color levels, bringing immersive visual enjoyment to the audience. In large-scale outdoor advertising, conferences and exhibitions, and high-end entertainment venues, ultra-high-definition LED displays are gradually becoming mainstream.
720P, 1080P, 4K, 8K Analysis
The P in 720P and 1080P stands for Progressive, which means line-by-line scanning. To explain this term clearly, we have to start with the analog CRT TV. The working principle of traditional CRT TV is to display images by scanning the screen line by line with an electron beam and then emitting light. During the transmission process of TV signals, due to bandwidth limitations, only interlaced signals can be transmitted to save bandwidth. Taking the LED display screen as an example, when working, the 1080-line image of the LED display screen module is divided into two fields for scanning. The first field is called the odd field, which only scans the odd lines (scanning 1, 3, 5. lines in sequence) and the second field (even field) only scans the even lines (scanning 2, 4, 6. lines in sequence). Through two-field scanning, the number of lines scanned in the original frame of the image is completed. Because the human eye has a visual persistence effect, it is still a complete image when seen in the eye. This is interlaced scanning. LED display has 1080 scanning lines and 720 images per second, which is expressed as 720i or 1080i. If it is scanned line by line, it is called 720P or 1080P.
What is 720P？
720P: It is a high-definition resolution, suitable for general home and commercial scenes, especially when the screen size is moderate.
What is 1080P？
1080P: Full HD standard, widely used in TVs, computer monitors and high-end LED displays, providing excellent visual experience.
What is 4K？
4K: 3840×2160 is called 4K resolution (that is, the resolution is 4 times that of 1080P) ultra-high-definition resolution, which is one of the top standards of current video technology, suitable for users who pursue the ultimate picture quality experience and high-end applications.
What is 8K?
8K: 7680×4320 is called 8K resolution (i.e., the resolution is 4 times that of 4K). As an upgraded version of 4K, 8K resolution provides unprecedented clarity, but it is currently limited by content sources and costs and has not yet been popularized.
How to choose standard definition, high definition, full high definition, ultra-high definition, 4K, and 8K in the purchase of LED display screens When choosing the resolution of LED display screens, it is necessary to comprehensively consider the application scenarios, budgets, and future needs. For home entertainment or small commercial displays, high definition or full high definition (1080P) is sufficient; for large outdoor advertisements, stadiums, theaters, and other occasions that require shocking visual effects, ultra-high definition (4K) or even higher resolution LED display screens are better choices. At the same time, we should also pay attention to the performance indicators of the display screen, such as brightness, contrast, and color reproduction, to ensure that the overall display effect is optimal.
In short, with the continuous advancement of technology, the resolution of LED display screens is also constantly improving, providing consumers with more diversified choices. I hope that this popular science can help you better understand the knowledge of resolution, so that you can make more informed decisions when purchasing LED display screens.
Post time: Aug-29-2024