FSi XM652U Colour Space XM W-OLED Display User Guide
- June 4, 2024
- FSi
Table of Contents
FSi XM652U Colour Space XM W-OLED Display
XM W-OLED Calibration Using ColourSpace
Sample ColourSpace Work-flow (Resolve as TPG, Probe CR100, Back 1D LUT,
then 3D LUT Upload)
Connecting to Resolve as your test pattern generator
Start DaVinci Resolve and create a new timeline. There must be content in your
timeline before starting the celebration. Verify that the monitor is receiving
a signal from Resolve then click on the Color Tab in Resolve. Click on the
Workspace menu in Resolve. Select Monitor Calibration. Select LightIllusion. A
pop-up dialog in Resolve will request an IP address, which can be found once
you start ColourSpace. Start ColourSpace and click on the profiling icon. From
the profiling settings window set Patch Size to L32, then select the Hardware
Options tab. From the Hardware drop-down menu select Network Server and click
connect. Below the connect button you will see a drop-down menu labeled
calibration patches, set this option to Automatic. Take note of the IP address
listed in the Network Server Options area. Enter this IP address in Resolve
and press Connect. Do not close the Calibration network connection window in
Resolve as this will terminate your connection. Return to ColourSpace and
click on the Manual Measure button and move the sliders to ensure test
patterns are being properly generated, leave the sliders set to 128,128,128 to
display grey on screen.
Connecting your probe
With the CR100 plugged into your computer click on the Probe Options button in
ColourSpace.
From the Probes menu select Colorimetry Research CR100. Select Rescan if no
active com ports are shown. Then press connect. Once connected verify you have
the correct XM W-OLED matrix active on the probe. Set extra delay to at least
0.25 seconds (we suggest 1 second). Next, ensuring that grey is still being
displayed on your monitor and the probe is positioned in front of the screen,
click on Probe Calibration to establish sync for your CR100.
Connecting ColourSpace to the XM Monitor
From ColourSpace open an additional profiling window (do not close the other
profiling window already open with your active probe and network connections),
select hardware options, and from the hardware drop-down menu select FSI XM.
In the Network Address field type in the IP address of the monitor and then
press connect. Next select the Gamut memory position where you will save your
LUTs. This selection should match the GAMUT selection made on the monitor as
outlined in the pre-calibration steps at the beginning of this document. From
the Select LUT dialog select UnityBypass. Then from the Load toggle select
1D+3D, then press upload. This will load unity LUTs to both the Front 1D LUT
and 3D LUT memory positions. Next, do the same for the back 1D LUT selection.
Loading UnityBypass LUTs clears previous LUT based calibrations in that memory
position allowing for a neutral (uncalibrated) starting position for display
profiling.
Profiling the XM Monitor
Next return to the first profiling window in ColourSpace where your probe is
actively connected to begin profiling the monitor. Click on the Display
Characterization icon, then select a desired profiling mode. To build the back
1D LUT we suggest profiling with Grey Only Large RGB / Grey Ramp RGB Large.
Ensuring that the CR100 probe is positioned at the center of the monitor,
press the Start button to begin profiling.Once your profile completes click on
the graph options tab, then select Rename to give the profile an easy to
identify name, then press save to save the completed profile.
Once the profile is saved open a LUT Tools window in ColourSpace. From the LUT
Tools window enter your de-sired LUT name in the NAME field. From the source
dialog select your target colour space from the colour space drop-down menu
(e.g. Rec709, P3). From the destination dialog select the calibration profile
you just saved. En-able the Limit Luminance Toggle and select 100nits or some
lower target if you prefer (only do this for the back 1D LUT generation). Then
click create new to generate your calibration LUT. Once your LUT is generated
click on the Manage LUT icon, then select save.
Next return to the Hardware Options window that is already connected to the
monitor and from the Select LUT dialog change from UnityBypass to the LUT you
just saved. Ensure that the gamut is still set to the memory position you want
to save to and that Load is set to back 1D, Then press Upload. This will load
just the 1D LUT component of the LUT you have generated. We suggest this
workflow for XM OLED since the native uncalibrated color temperature of these
panels is 10,000K. By building a back 1D LUT you can estabilish a neutral
6500K white balance and desired EOTF reponse as the baseline for an additional
profile that will then be used to build your 3D LUT to complete the
calibration. Next return to the profiling window in ColourSpace where your
probe is actively connected to begin profiling the monitor a second time, this
time with the back 1D LUT you just created still active on the monitor. Click
on the Display Characterization icon, then select the desired profiling mode.
We suggest profiling with Grey Only Large RGB / Grey Ramp RGB Large (quick) or
Cube Based 17^3 (slow).
Once your profile completes click on the graph options tab, then select Rename
to give the profile an easy-to-identify name, then press save to save the
completed profile.
Once the profile is saved open a LUT Tools window in ColourSpace. From the LUT
Tools window enter your de-sired LUT name in the NAME field. From the source
dialog select your target colour space from the colour space drop-down menu
(e.g. Rec709, P3). From the destination, dialog select the calibration profile
you just saved. Then click create new to generate your calibration LUT. Once
your LUT is generated click on the Manage LUT icon, then select save. Next
return to the Hardware Options window that is already connected to the monitor
and from the Select LUT dialog change from UnityBypass to the LUT you just
saved. Ensure that the gamut is still set to the memory position you want to
save to and that Load is set to 3D Only, then press Upload. Your calibration
is now complete and saved to the monitor in the specified gamut position.
Additional Considerations
If you plan on utilizing the Back 1D LUT for calibration please remember to
calibrate for this position first using Grey Only or Grey Only Large
profiling, upload to the monitor’s back 1D LUT position, then profile with
this Back 1D LUT active. When creating a PQ-3D LUT you will also want to use
the EOTF nit option in ColourSpace to specify the corresponding measured peak
luminance of the display (e.g. 650nits). To do this select the Space
Management option, select a standard Colour Space (e.g. ST2084 P3 D65), then
select Modify. In the nits field type in the corresponding peak luminance
target (e.g. 650nits), then change the Output name accordingly (e.g. ST2084 P3
D65 650) and press save. This will now be presented as a new source target
option when creating your LUT.
For PQ calibration a popular approach is to build a back 1D LUT targeting
gamma 2.2 D65 first. Then profile with this active in the back 1D LUT slot and
build a 3D LUT targeting PQ next.
When calibrating for HDR on W-OLED an L10 window test patch size is suggested
to avoid loading behavior. However, please keep in mind that excessive use of
small bright test patches can cause burn in on OLED dis-plays, for this reason
we advice using smaller profiling test patch sets (e.g. Grey Ramp RGB Large)
for HDR calibration. Please note that W-OLEDs are best suited to SDR mastering
applications. While W-OLEDs can be calibrated for use in as less color
critical HDR monitoring scnearios they will exhibit volumetric limitations at
high light output levels. This is normal and a limitation of the W-OLED
technology. Questions? E-mail:
[email protected]
or Call: +1.678.835.4934