Vertex - LLDV

This is a VERY experimental option - It is not for everyone. Having said that, it CAN add a new lease of life to your projector, particularly when Dynamic Tone Mapping (DTM) is somewhat scarce on the ground

Dolby Vision is a new standard for HDR. It is a bit of a closed system and typically you need all Dolby Vision enabled hardware . The specifications do not include ANY projectors at the current time, basically because NO projector can hit the standards required, nor are any projector manufactures licencing Dolby Vision.

Job done, move on, right?

Not exactly. Somewhere in the development Sony managed to throw a spanner in the works and their Dolby Vision TVs were not quite up to the mark. This lead to the creation of LLDV ( Low Latency Dolby Vision) which is player led rather than screen led. Basically, it means that the player creates a HDR capable stream from the source material using the Dolby Vision meta data and this effectively Dynamically Tone Maps the HDR to the levels of the display device!

So If there is Dynamically mapped DV material. How do we get The Epson TW9400 to appear as if it is LLDV capable device?
Some bright spark found that we can spoof the EDID (Extended Display Identification Data) - Which is basically the HDMI handshake that goes on between devices to agree what the devices are capable of, to say that despite the Projector not being capable of DV, that it is, along with a lot of parameters defining those capabilities.

Enter The HD Fury Vertex and the newer Vertex 2 devices.

I have the original Vertex and this is what i am going to be basing the information on below. It MAY work on the Vertex 2. I don't have one, but honestly i'd expect it to. However The Vertex 2 has various other DV settings built into the device and as such, you may be able to do things differently.

The Vertex 2 has an online interface. It is much easier to tweak, set and alter. Alas mine requires a laptop directly connected or some add on to get access independently. The Vertex 2 is newer and easier to use, however i've yet to upgrade to one and I find challenge in reusing older hardware too!

The Vertex Gui - Manager options - use the Upload EDID box, bottom Mid and then Upload EDID to enable.
Right click open image in new window will show a full screen image

Download TW9400 DV Modified BIN File

I've included screen shots of the most of the other tabs for completeness.

The HDR/IF tab here has some settings for colours, and luminance settings. We're using DV so these may not be actually used, however changing them, then hitting SEND HDR does change the values in the OSD display. I would suggest changing the settings here to match the EDID you are using, so 600 or 2000 nits, BT2020 etc makes sense.

Max CLL = Maximum Average Frame Light Level

Max Fall = MaxFALL is the maximum frame average light level permitted by the display

https://professionalsupport.dolby.com/s/article/Calculation-of-MaxFALL-and-MaxCLL-metadata?language=en_US
https://www.mysterybox.us/blog/2016/10/19/hdr-video-part-3-hdr-video-terms-explained

AVI / VSI -

DVI / IF - The captured info is different to the EDID in use. It may be possible to manually modify this and use with automix, rather than uploading and EDID as per screen one?

Interestingly Global Dimming here may have a BIG effect

OSD set-up - Useful to show for a few seconds to confirm that you are using DV - I chose 7 secs

The Config Tab has some useful in terms of turning off the green side lights, and the display after a short while

Given all of the above, this is an example screen shot showing DV enabled.
Tx0 - Bottom port input, 422, Bt2020 DV enabled, 297hz is because i'm using 24P here
HDR - Output. These setting may relate to the above HDR tab?
Audio - Bitstream (paused for image, hence 2 channel. It's Atmos on my receiver when playing!
MTR - BT2020 D65

Eedit Gold - About a 1/3rd of the way down is the link to download Version 1.01.0276

It's an MSI installer. You need to use the import bin file

The Extended 2nd block appears to be the DV information in Hex format pairs

It is a useful utility to tweak things. You can also run a report. A LOT of the settings are imaging timing stuff like the old VESA monitor things it was based off.

I don't believe you can damage your projector with any of these tweaks or settings. The worst appears to be a lack of image, however don't do anything you don't feel confident in doing and I am not responsible or liable for anything going wrong etc!

These are my notes i used when modifying things.
EB 01 46 D0 00 45 1B 60 56 98 A9 53 - Is what i've settled on with the file here

I'll be trying - EB:01:46:D0:00:45:1F:80:57:98:A9:53

For BT2020, 0.005 min, GD on and 1000nits with 12b

or for 2000 nits EB:01:46:D0:00:45:1F:A8:57:98:A9:53

or for 600 nits EB:01:46:D0:00:45:1F:60:57:98:A9:53

80=DV type

post 45=low nit value 4B=0.05 1B=0.005 03=0

87:01:1a:91:02:00:34:21:aa:9b:96:19:fc:08:48:8a:08:39:13:3d:42:40:e8:03:32:00:e8:03:90:01:00

**:**:**:lum:

a4=1000

08=900

c6=800

BT2020 colour co-ordinates

0.708, 0.292

0.170, 0.797

0.131, 0.046

Nits 1000 - 0.005

D65 White - 313,329

1000nit - 45 1B 80 56 98 A9 53

600nit - 45 1B 60 56 98 A9 53

Update - 22 Nov 2021

https://www.chromapure.co.uk/details.asp?id=289&type=news

HDR slider, and we found these clipping points:

1200 nits - HDR setting 1

2000 nits - HDR setting 7

3000 nits - HDR setting 14

4000 nits - HDR setting 15

10,000 nits - HDR setting 16

I'm now curious about trying a 2000 nits profile, which with the slider at 7 may work better? - Tried 22/11/21 and it seemed to work. I manually modified a 2000nit EDID to the correct colours, sound etc

I'm also reading through the Vertex manual - https://www.hdfury.com/docs/HDfuryVertex.pdf
And exploring the EDID with EEdit Gold with the report function and the mapping of DV values to HDR values shown on the OSD

Vertex 2 info - For the Epson
https://www.avsforum.com/threads/the-epson-5050ub-6050ub-thread-no-price-talk.3060314/page-472#post-60318173

Arcana info - For the Epson
https://www.avsforum.com/threads/the-epson-5050ub-6050ub-thread-no-price-talk.3060314/page-634#post-61207550

HDR Primer - https://www.lightspace.lightillusion.com/uhdtv.html

Vertex Manual - https://www.hdfury.com/docs/HDfuryVertex.pdf