Future improvement
If this innovation can be upgraded, next improvement of this device.
- Its appearance will be like a tablet that easier to take to anywhere
- You can turn to others pages just press on left/right buttons, then alphabets will be changed on itself, we called it “Physical dots”
- “Physical dots” is like others touch sensors, but it has a feature that each dot can lift up/down by using air pressure or electricity, so it can change from A to Z or 1 to 6 by change a lesson cartridge
- You can change a lesson or subject of the device by change a cartridge.
Limitation
- This technology is just an idea that maybe can’t be developed in nowadays.
- It may use a lot of money to produce a device.