| 摘要 |
<p>Handset keys with circular plate structure include a circular plate structure key. There is a charge transfer inductive sheet (23) in compound materials layer (2) under the keycap (1) of the circular plate structure key, the charge transfer inductive sheet (23) leads out electrical signal through inductive sheet lead-out wire (24). Said compound materials layer (2) is compounded by a thermoplastic polyurethane piece (21) and a silicon rubber layer (22), and the charge transfer inductive sheet (23) is set between the thermoplastic polyurethane piece (21) and the silicon rubber layer (22). The handset keys with circular plate structure utilize the charge transfer inductive technology to combine the charge transfer inductive sheet with the existing handset keys with the circular plate structure, and to make a slide circular plate in the keypad. When a finger moves circularly around the circular plate, the communication list or items of songs can scroll under the control by software, and it is possible to use the inductive sheet to choose data quickly while serving as a key. This structure can not only be used in the handset keys, but also used in the other electronic products.</p> |
