A cane that has a built-in display that can show arrows to direct the user towards their destination is being built by a Japanese multinational.

The stick, which also has sensors that monitor heart rate, temperature and humidity, is connected to the internet and can be located online, potentially allowing a lost person to be found and directed to a nearby destination.
When used to look up directions, arrows indicate where the holder should head, and measure distance covered by GPS and the number of steps taken.
The revolutionary stick updates itself each time it hits the ground and vibrates when a turn is needed.
Although it is currently only a prototype, it has integrated GPS, WiFi, 3G and Bluetooth connectivity and can also receive pre-programmed routes from the internet.
Source-ANI