The world is currently buzzing about 8K, and it's seen as the future direction of the display industry. However, today we're not talking about 8K—instead, we're focusing on 4K, which has been criticized for a long time. The reason? Many so-called "4K" displays you see might actually be fake or misleading.
To clarify, 4K refers to a resolution of either 3840x2160 or 4096x2160. If the width is less than 3840 or the height is less than 2160, it can't truly be called 4K. Additionally, even within 4K signals, there are differences such as frame rate (30Hz vs. 60Hz) and color space (YUV vs. RGB). These variations can significantly impact the visual quality, especially on high-end displays.
For example, the HDMI 1.4 standard supports a maximum frame rate of 30Hz, while HDMI 2.0 can go up to 60Hz. A 60Hz signal offers twice the frame rate, resulting in smoother motion and better detail, especially in fast-moving scenes. The higher the frame rate, the more realistic the image appears, closer to how our eyes perceive the real world.
But achieving 60Hz on a 4K screen comes with its challenges. The data volume and bandwidth required are significantly higher. For instance, a 1080p 60Hz signal requires a clock frequency of around 148MHz, whereas a 4K 60Hz signal needs 594MHz—making it much more demanding for signal transmission and processing.
If you're interested in smart TVs or media boxes, make sure to check out Smart TV/Box Info. It’s a leading platform in China for smart TV and box information, offering updates, reviews, software, and community discussions. Whether you're looking for answers or want to stay updated, this site is your go-to resource for all things smart TV.
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