Looking for 1-Piece 5-10" HDMI display


First post on the forums. Not for sure this is the right place for this, but…

I’m looking for a nice <$50 HDMI display for my BBB. I have searched the shallows of google for a couple hours, and I was wondering if someone knew of a display that meets my needs.

Price: < $50
Size: (doesn’t matter)
Touchscreen: Prefer No
Slim: Fairly slim. Don’t want huge box in my backpack.
Complexity: One Piece. (HDMI in and power in jacks)

Basically what I plan to be doing is sliding it in and out of my backpack (with a cover/protective bag or something of course) whenever I want to use my BBB.