goolasso wrote:Usually laptop screen are difficult to use with Raspberry and they are too expensive in terms of energy...
Just in case you misunderstood, I suggested a small desktop monitor (15", £10 - £20), which is very, very easy to use with Raspberry Pi.
You didn't define energy consumption. Of course monitors are mostly energy-star compliant and have low-power standby modes.
You could attach a PIR sensor to the Pi to wake the monitor when someone is in the room.
Laptop screens are also an option. A screen from an Acer Aspire One or similar netbook could probably be used with a controller board.
It will probably cost a lot more than the desktop monitor though. And you can see how expensive the neosec option is.