| 摘要 |
A touch screen device includes a touch screen panel having a key input area and defining a plurality of touch-sensitive keys at the key input area, a control module operatively linking with the touch screen panel, and a security key inputting system operatively linked to the control module. The control module displays a plurality of input characters at the touch-sensitive keys respectively in such a manner that when one of the touch-sensitive keys is contacted, the control module identifies the corresponding input character being selected as an input data. The security key inputting system is arranged for randomly re-arranging the input characters at different touch-sensitive keys respectively, wherein the input characters are alternately displayed at the touch-sensitive keys for preventing the input characters from being read by memorization of fixed location.
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