There are so many things you would like to check once you enter your room. This can be weather, time, or even Bitcoin price. Lostengineer was working on something similar. He attachedc VFD display to Raspberry Pi which connects to internet with USB wireless adapter. He wanted that display would activate itself once he enters the room, so he connected PIR motion sensor. If nobody is home, display enters sleep mode.
The display he had accepts serial data, what makes it even easier to interface. Operation is controlled by Python script which pulls required and sends to display. Project is still in progress, but it is promised to be open source.