引用:

原帖由 xuewen_123 于 2016-2-25 09:12 发表

2k屏像素点数量是1080的1.7倍了，一样？

请问你学过数学么？

引用:

原帖由 爱骑车的胖子 于 2016-2-25 17:19 发表
posted by wap, platform: Galaxy S6 EDGE+
2560*1440÷1920÷1080=1.77777

2K resolution is a generic term for display devices or content having horizontal resolution of approximately 2,000 pixels.[1] Digital Cinema Initiatives (DCI) defines 2K resolution standard as 2048×1080.[2][3]

In the movie projection industry, Digital Cinema Initiatives is the dominant standard for 2K output. In the digital film production chain, a resolution of 2048×1556 is often used for acquiring "open gate" or anamorphic input material, a resolution based on the historical resolution of scanned Super 35mm film.[1]

Format        Resolution        Display aspect ratio        Pixels
DCI 2K (native resolution)        2048 × 1080        1.90:1 (256:135, ~17:9)        2,211,840
DCI 2K (flat cropped)        1998 × 1080        1.85:1        2,157,840
DCI 2K (CinemaScope cropped)        2048 × 858        2.39:1        1,755,136
PC 2K (1080p)        1920 × 1080        1.(7):1 (16:9)        2,073,600