I'm trying to build a portable screen so that I can watch movies around my apartment if I need to move away from my TV screen (think a WiiU gamepad or a tablet). I have many raw components and I think I will be able to succeed as long as I can solve all of the little problems (classic statement, I know).
My system contains a Raspberry Pi along with a wifi dongle, some button/joystick inputs, and a 7" touch screen. My background is mostly in CS/programming, so I don't know exactly how to deal with powering the system. I have a relatively large battery supply that has two outputs of 5V/2.1 A and 5V/1A so I know I can power the RPi along with the simple components directly connected to it, but I'm having trouble figuring out how to power the screen/driver. I can make the system work if I plug a 12V/1A power supply into the board but with my 5V battery supply that clearly does not work on its own. Attached is a picture of the power regulator.
Is there any way to convert my 5V battery (either the 2.1A or 1A port) to work with this board? I'd be willing to purchase other parts and/or deconstruct the video driver board if needed. (I know Watt-wise I can /almost/ make it, so I'm hopeful that someone out there has a creative solution!)
The markings of the regulator on the board (if you're having trouble reading it):
AA20 C HY2576 S -ADJ P+
I can't find anything on Google about the regulator, but my google-fu may just be off.