说工厂：/Industry idea:背面写字的手机back office phone

创意名称：背面写字的手机
Creative Name: back office phone
创意构成：手机背面带一个触控板
Creative pose: the back of the phone with a touch panel
技术原理：手机技术 + 笔记本触控鼠标技术
Technology: mobile technology + laptop touch mouse technology
经济效益：小孩子和女孩子的手比较小，不能单手拿手机写字，安装背面触控板之后，可以单手用食指或中指写字。
Economic benefits: the hand of the child and the girl is small, can not just take a mobile phone to write, after the installation of the back of the touch pad, you can use a single hand or middle finger to write.
灵感来源:笔记本的触控板
Source of inspiration: notebook touch panel
补充说明：这是手机的一个小小的改进，技术难度不高。需要找专业人才实现。
This is a small improvement of the phone, the difficulty of the technology is not high. Need to find professional personnel to achieve.