LCD for SLA 3D printer resin curing
Hmm I seen videos off people pealing filters off of lcd screens to let uv pass through.

I believe the sharp unit maybe popular because not all lcds have square pixels and have poor pixel alignment towards the edges, (the focus of the eye can only take in so much information why waste materials producing inperceptable rises in quality, much like having a 8k small screen unless the picture is static your hard pushed to notice difference).

There is also diffraction to think about, crystal size in the resin, oxygen membrane or delamination layer to stop cured resin sticking to lcd, I think there are projects of floating resin on another liquid (fluorinated oils work).

Even with better resolution(4k,) the voxel size does not increase in a linear manner, unless the uv light source is focused an colimated like in a lazer.

I don't know much its just info I've gleaned whilst browsing, I'm sure someone will correct any inaccuracies.