MEMS based Backlight for LCD in light of DIY perks latest video

[blurfreeCRTGimp]

This video demonstrates the DIY perks youtube channel using an old DLP projector to get so close to near pixel level dimming for on an old LCD without the drawbacks of all recent attempts at dual layer LCD.

At 13:05 in the video below he solves for the main alignment problems of dual layer LCD using the Luma Key and Glow plugins from OBS.

phpBB [video]

I remember that I mentioned to the chief in an old thread in Area 51 from years ago about doing something similar to this, but using MEMS raster scanning projectors like the Celluon, the Sony MPCL1, or the Nebra Anybeam as opposed to DLP. I pointed out that this projection technology would be ideal vs using mini LEDs to get pixel level dimming as well as blur reduction simultaneously.

It would effectively mimic all the best characteristics that we miss most about CRTs. The only thing we would need to figure out is how to get an array of mems projectors, or a single projector to actually resolve a true monochrome 1280x720 resolution to make the dimming worthwhile. The 640x360 that one Anybeam is capable of resolving is just not enough. That's why I use 2 to resolve 640x720.

Brightness shouldn't be an issue because you would be doing a rear projection style of projection, the lasers would focus at the diffuser, not be a threat to your eyes, so you could just make the lasers brighter, or use UV lasers to excite a bright low persistence phosphor or UV reactive resin like in this YouTube video.

phpBB [video]

In DIY perks most recent video about using an old DLP projector as a local dimming backlight, it has brought me back to my initial idea. A minor evolution of what this You Tube channel has done, just with a MEMS based projector instead of DLP. It should give the same results, but with strobing as that would be inherent to the source projector being used as the "backlight," IE a MEMS raster scanning projector. Give the videos a watch and let me know what you think.

[Chief Blur Buster]

This is a fantastic DIY trick.

The main problem is the synchronization between scanouts will create lagging artifacts during fast motion, and probably won't be compatible with the CRT simulator shader unless you have perfect backlight:panel sync. I've met a Lenovo 240Hz Hz laptop whose MiniLED did this, 90% of MiniLEDs weren't in good enough sync.