I wonder if you could just get a second screen type device and then drive it from a phone?
Edit: something like this, but check compatibility https://www.currys.co.uk/products/asus-zenscreen-mb166c-full-hd-15.6-ips-led-portable-monitor-black-10253405.html
How do you mean, like a portable monitor?
Yes, see edit
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I wonder if you could just get a second screen type device and then drive it from a phone?
Edit: something like this, but check compatibility
https://www.currys.co.uk/products/asus-zenscreen-mb166c-full-hd-15.6-ips-led-portable-monitor-black-10253405.html