At present, the rapid development of touch screen phones has been integrated into people's daily life.
The size of mobile screen influence the user experience and sales positioning.
If you remove all the hard button of the phone and place its functions to the touchpad in the back of the body,
so that the screen extends to almost the entire body, then will be the true sense of being full touch screen mobile phone.
This will enable mobile phones have more display space, more changes in the display,
and reduce the visually impaired of human-computer interaction when doing basic operations.
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