I believe the so call TRUE HDR mainly distinguised by "local dimming zone" & "brighness" above SDR standard be it 400(true black)/600/1000 available on the display, it does not really matter OLED or IPS as currently mentioned by all those youtuber or reviewer.
https://displayhdr.org/general/not-...s a performance spec,the GPU and the display.
If I undertand correctly based on the above article in summary:
1. "
HDR10" is the standard/protocol used by all HDR devices with at least color bit depth 10 bit
2. Some HDR display devices support more than one protocol (i.e. HDR10+, DolbyVision, and Hybrid Log Gamma (HLG)), but majority HDR capable devices are
99% support HDR10.
3. "
HDR 400 / 600 / 1000" means that a display would be able to handle an HDR signal, and some part of the screen would be able to achieve
400 / 600 / 1000 cd/m2 or higher
luminance levels.
4. VESA "
DisplayHDR" is a
performance spec that measures different aspects of
HDR quality, including luminance, color gamut, bit depth and rise time example with specifc logo below:
View attachment 38292View attachment 38293
View attachment 38294
and below was VESA "DisplayHDR" performance standard requirement.
View attachment 38295
For example both Alienware
AW3423DW & AW3423DWF OLED monitor are"DisplayHDR 400 True Black" certified with
capabilities to display 1000 nits brighness but not to confused with DisplayHDR1000 standard.
Example of "DisplayHDR 1000" would be
LG 32GQ950-B NANO IPS 4k monitor.
So basically any monitor display capable of HDR10 are with maximum 10bit color depth, together with minimum brightness of 400 nits & above ( HDR10 can't go past 10-bit color depth): (reference link: https://www.rtings.com/tv/learn/hdr10-vs-dolby-vision) nevertheless do take note this is not taken into considereation of monitor refresh rate.
along the way I believe this HDR term can be really confusing and i hope my understanding above can provide some idea how it come about to HDR certification for monitor.
As such its always best to understand the full specification of the monitor for our next purchase if HDR play an important role for buying decision.
Do correct me if any of my point above is incorrect.