I’m getting sick of people reading over my shoulder documents I write or read eg on planes.
Today’s invention is simply to supply laptops with a pair of ‘blinkers’, making the screen visible only to the rightful user -not adjacent passengers.
These could be made of two opaque sheets of soft plastic hinged to the edges of the screen so that, when closing the machine, the blinkers would fold inwards, forming additional protection for it from the keyboard.