婆罗门
精华
|
战斗力 鹅
|
回帖 0
注册时间 2007-3-6
|
Support for 4K format
What does 4K refer to?
4K is a term used to describe displays with resolutions that are essentially four times that of a 1080p device – or
roughly 4,000 lines wide by 2,000 lines high. The HDMI 1.4 specification supports multiple 4K formats:
3840 pixels wide by 2160 pixels high @ 24Hz | 25Hz | 30Hz
4096 pixels wide by 2160 pixels high @ 24Hz What color space is supported by HDMI 2.0?
HDMI 2.0 includes support of BT.2020 colorimetry with 10-bit color depth or higher. An earlier specification version removed previous limitations to the color space, enabling the display of any color visible to the human eye. Resolution of 2160p with 10-bit or 12-bit color depth at less than 30 Hz has a sampling of RGB, 4:4:4, or 4:2:2. Content of the same resolution and color depth at 50 Hz or 60 Hz supports 4:2:2 or 4:2:0. For existing HDTV rates up to 1080p and 2K, the supported colorimetry is BT 709.
似乎4K 60Hz是在HDMI 2.0才支持的,HDMI 1.4的标准制定时只支持到4K 30Hz。wiki只是按照带宽是否足够,而没有考虑到标准是否支持来画的那张表吧?
有的电视支持设定HDMI接口是1.4还是2.0,在这种电视上把接口设定为1.4,再试试还能不能显示4K 60Hz YUV422/420,就知道4K 60Hz YUV422是不是属于HDMI 2.0标准了吧。 |
|