3 old micro ibm hard drives combined into rgb color space / diy laser image projector[1] might be able provide a bigger picture without exceeding DIY credit card size. kinda depends on laser size.

Ummm... a smartphone internal projector module more compact than diy stack of ibm microdrives / laser.[2]

Not worrying about size: esp32 laser dac : https://www.youtube.com/watch?v=9YASnlB_t_U

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[0] : diy laser video projector : https://asktheman.xyz/

[1] : https://www.youtube.com/watch?v=fEPicBSYeNQ

    : https://www.youtube.com/watch?v=bl1e54QGJk4