Looking for creative solution for complicated problem.

[ShayOh]

Hi!
Trying my luck again,
Im working part time online, basically website building, and a lot of other browser work.
due to my sons condition i need to get up away from my laptop a lot and feels like i am too stationary with the laptop (HP J0021NR).
so i've been looking for a solution for a way to be more flexible for where i can work.
In a perfect world, having Microsoft Hololens where the screen can basically move along with me where ever i sit mirroring my laptop screen, combined with TAP strap will solve all my problems, but since the hololens are so expansive, this solution is not possible right now.

so im looking for a device that could mirror my laptop/desktop screen, be big enough to be able to read lightweight portable and protected enough and that i could carry around.