2019-12-11, 00:23
An OLED panel can only do 720 nits or so in a very small window because of its Auto Brightness Limiting (ABL) feature that prevents the screen from becoming too hot.
But, for HDR purposes, you are only concerned with making very small parts of the screen as bright as possible to represent the small HDR specular highlights.
So peak luminance or peak nits in the display's HDR mode is different than its SDR mode. Standard peak luminance measurements in HDR mode are measured in a 10% white window and not a 100%, fullscreen white pattern.
You either need to measure a 10% white window pattern mastered in PQ HDR10 with your colorimeter. Or you could estimate the peak nits of your display in HDR mode by finding an online review where someone else measured it in the most accurate picture mode.
But, for HDR purposes, you are only concerned with making very small parts of the screen as bright as possible to represent the small HDR specular highlights.
So peak luminance or peak nits in the display's HDR mode is different than its SDR mode. Standard peak luminance measurements in HDR mode are measured in a 10% white window and not a 100%, fullscreen white pattern.
You either need to measure a 10% white window pattern mastered in PQ HDR10 with your colorimeter. Or you could estimate the peak nits of your display in HDR mode by finding an online review where someone else measured it in the most accurate picture mode.
