| 摘要 |
<p>PURPOSE: A touch screen system with a touch sensor at the back of a display is provided to enable a user to use more fingers for input by operating the touch screen sensor as a user input device. CONSTITUTION: A display(420), a main control circuit unit(430) and a touch screen sensor unit(410) are successively stacked. The touch screen sensor unit is located in the lowermost layer not to block the screen of the display. When a user uses a smart phone or tablet PC, the user can touch the back surface of the touch screen with his fingers. The touch screen sensor unit is composed of conductors with low costs and high conductivity.</p> |
