HI all,
we are new here. We calibrate one Lilliput BM230n monitor, we export LUT 17*3 cube, we call it user1.cube, everything like it should be via their manual.

Manual: https://drive.google.com/file/d/120j0Vp15GWHWswzm_19w4k4Deg9GWs_e/view
From the manual: It supports to upload user-defined Lut table "User1~User3".
- User-defined Lut table only support RGB format. If the format is not correct, please transform it to the correct format by using tool "Lut Converter" (See appendix 1 for details) and named as User1.cube,
- Copy the User-defined Lut table to flash disk and insert it to the device, the screen displays a prompt message to show whether to upgrade. Select upgrade, the device will be loading automatically in a black screen and then restart after finishing loading.
 Requirements for flash disk
Format: FAT32, Memory: <16G, File directory: root directory

We put cube on usb stick, and monitor recognize it and ask us for upload the LUT, but then nothing happen. NO black screen at all. Also I notice under the Color Space, User1, User2,... are disabled.
Any idea why we cannot approach to the upload of LUT?
TYIA, Mirela, Ater

Sorry to say they are all questions for Lilliput.
You will need to ask them for help.

Steve

Thank you Steve, I contact them, they are fast in support. In the meantime I found the way to upload the LUT, and ask them what is the best procedure for reset the LUT and should we calibrate their NATIVE or REC709 inputs, because you cannot approach to the USER profiles if you don't have uploaded LUT, which is not quite perfect. I will let you know what was their answer.
Mirela

In the meantime, I get the answer for resetting the lut input. I got from Lilliput Rec709.cube LUT file.

Using a Rec709 LUT will not reset the monitor to have no calibration, to enable a new User Calibration to be generated.
It will just load Lilliput's own default Rec709 calibration.
(Which will very likely not be good...)

Steve

Steve
Hi again,

I finally had some time to work on the Lilliput monitor. Their monitors support two LUT formats: 33-cube and 17-cube. After calibration, I performed two tests:
- I created a LUT for Assimilate Scratch as a test and sent it via SDI. The RGB colors appeared accurate, and the greys looked good, but the whites had a greenish tint.
- When I uploaded the 17-cube LUT to the monitor, the red and blue channels swapped (red became blue, and blue became red). The greys were still fine, but the whites remained greenish.
Based on these results, I suspect there's an issue with how the LUT is being written for the Lilliput monitor.
I performed a very basic calibration to test the protocol and ensure the LUT upload process was functioning correctly.
I need help with this, please.
Kindest regards
Mirela

Attached file: HP_Liliput021_GPS-141_Rec709.zip

Attached file: HP_Liliput021_GPS-141_Rec709.zip

aterstudio
If two different size LUTs of the same export type cause different results in the monitor, that would point to an issue with the monitor.
And unfortunately saying the grey scale was good, but the wites had a greenish tint also suggests an issue with the monitor.
Although there is no 33^3 format in Assimilate Export from ColourSpace.
And the two LUT you have uploaded are totally different formats.

Steve

Ah - the LUT shows exactly why the whites are green.
That is what the LUT is doing.

Steve

The LUT

Steve
Assimilate 32 3dl format, 64 was too big for upload. Yes, they are in different formats, which results in two different results.
Here is assimilate 17 formats, RGB colors are fine.
Mirela

Attached file: HP_Liliput021_GPS-141_Rec709.zip

Yes, that is the image of the LUT I posted above - it shows why there is green in the whites.
The LUT you generated is doing that.
That says the monitor had issues when you profiled it that were the inverse error.
And the monitor cannot use the 33^3 format LUT you used - it is not the correct format.

Steve

Steve
Steve for Lilliput I use 17 cube format. 33 cube couldn't be uploaded.
Mirela

No, the 33^3 format you tried to use is not correct for the monitor.
The 17^3 LUT shows there were issues with the monitor when you profiled it.
Upload the profile you used to make the LUT.

Steve

Hi, here is the profile. Mirela

Attached file: HP_Liliput021_GPS-141.zip

Yes, the monitor has some very serious issues pre-calibration, as can be seen with the RGB Separation graph for example.
(As well as the 3D CIE graphs.)
And you have only used a Quick Profile, which as the User Guides explain will not work with such a bad monitor.
You will need to do a large volumetric profile.
But I have to warn you, the monitor is very poor.

Steve