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I am planning to make a machine that uses an LCD screen as a mask for etching PCBs. However, I am concerned about the type of LCD that I would need as well as the accuracy that I would get.

My main concern is that regular LCDs (like from a mobile device or laptop) have a UV light masking feature that would absolutely derail my project. Do they only block a certain frequency? What would I need to do to make a regular LCD screen work?

Additionally, I know that there is some light distortion going on within the liquid crystals in LCDs. How could I increase my accuracy?

If anybody has any information or knows anything about this please respond. Anything would help.

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  • \$\begingroup\$ Some resin 3D printers use an LCD and UV light. \$\endgroup\$
    – Andrew Morton
    Commented Feb 20, 2022 at 11:41
  • \$\begingroup\$ yes, I know, but buying the ones specifically for them are expensive, so I'm asking if anything from a common household device would work. Thank you though \$\endgroup\$
    – avilazazel
    Commented Feb 20, 2022 at 20:00

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