DIY DLP Printer

I am converting the machine to a UV LED/LCD printer to get a larger print area, higher xy res, and more even lighting. Here is the 144W 400-405nm array almost complete.

I'm using a 10.1" LCD 2560x1600. It should be 85 microns xy resolution. I have been doing a ton of reading on opensla, the google+ group, and from what I have read the LCD will be destroyed but 300hrs seems like that screen went really quickly. It may depend on the wavelength of light used. I believe that around the 360nm range the light will degrade the LCD much faster then what I am using. I am hoping to get a similar usage out of it as I would from a projector bulb but that probably won't happen. Replacement screens are $55 from aliexpress so that not a bad price. It is all experimental for me but I haven't read about the screens dying from UV yet on the D7 or Proniks KDL printers.

I am probably going to have to use some collimating lenses or someway to diffuse the light more evenly. Proniks just released a 8.9" model with only 6 10w leds. The light seems uneven so I really want to see some photos of those prints once users on opensla start publishing them.   

Here is the LCD I purchased but have not received yet.

https://www.aliexpress.com/item/10-1-in … c5e4500324

DLP light is much more harsh on an LCD than a UV LED array is. The DLP puts out much more short range UV along with others which is what has the bleaching effect. THE UV array put out a specific long range and it does not bleach if at all.