人类可以分辨720p和1080p吗？

There’s a new wave of smartphones or “phablets” such as the HTC’s (2498) 5-inch J Butterfly  that will have screen resolutions that top out at 1080p resolution, double that of today’s 720p resolution smartphones. With the added resolution, phone makers are going to boast about how photos and videos are sharper and clearer, and how visually, you’ll be able to see more. But unless you’ve got perfect 20/20 or have the screen pressed up against your eyeballs, you probably won’t be able to notice the difference between 720p and 1080p on such a small device, says Dr. Raymond Soneira, president and CEO of DisplayMate.


In an ArsTechnica interview, Dr. Soneira said that most people won’t be able to notice the added sharpness that a 1080p resolution would bring to their smartphones because photos and videos are spread over multiple pixels, and thus are still “fuzzy” no matter what the resolution is.

“Even the tiniest image detail in a photograph is always spread over more than one pixel. The image detail is never perfectly aligned with the pixel structure of the display,” said Dr. Soneira. ”For ordinary viewing of videos, 1920×1080 is really not going to make a visual difference.”

Not only that, but as you hold the smartphone further away from your eyes, the sharpness is reduced, just as it is when you sit further away from an HDTV. Even for people with 20/20 vision, Dr. Soneira says a 1080p resolution would be wasted because most people’s eyes “can’t resolve sharpness above 229 [pixels per inch].”

However, Dr. Soneira does point to one advantage a 1080p smartphone would have over 720p and lower devices: more breathing room for user interface elements such as buttons and text. For example, a higher resolution would allow for more pixels of a website to appear or more words in an email.

And just because Dr. Soneira is saying 1080p won’t really make a big difference doesn’t mean smartphone makers won’t push it as a selling point. They will.

有一个新的智能手机浪潮或“phablets”，如宏达电（2498）5英寸Ĵ蝴蝶的屏幕分辨率，顶出1080p的分辨率，双指今天的720p分辨率的智能手机。随着加入的分辨率，手机制造商将拥有锐利，清晰的照片和视频，以及如何在视觉上，你就可以看到更多的。但是，除非你已经得到了完美的20/20或对你的眼睛在屏幕上按下，你可能不会是说能注意到这么小的设备上的720p和1080p之间的差异，博士，总裁兼首席执行官雷蒙德Soneira DisplayMate的。


ArsTechnica的采访，Soneira博士说，大多数人都无法注意到，1080p分辨率带来的增值清晰度照片和视频的智能手机，因为分布在多个像素，因此仍然是“模糊”不管的分辨率是什么。

“即使是最微小的图像细节的照片总是分布在超过一个像素。从未完全对齐图像的细节与显示器的像素结构中，“所述博士Soneira。 “对于普通观看的视频，1920×1080的真的不打算让视觉上的差异。”

不仅如此，但你持有的智能手机进一步远离你的眼睛，锐利度降低，只是因为它是当你坐在渐行渐远的HDTV。即使是20/20视力的人，一个1080p的分辨率将被浪费，因为大多数人眼里，“不能解析清晰度以上229像素，每英寸]博士Soneira说。”

然而，博士Soneira做点一个优势一个1080p的智能手机将有超过720p和较低的设备：更多的喘息空间的用户界面元素，如按钮和文本。例如，更高的分辨率可以让更多的像素，显示了一个网站，或更多的词在一封电子邮件中。

也正因为博士Soneira是说的1080p不会真正使一个很大的区别并不意味着智能手机制造商不会把它作为一个卖点。他们的意志。