| 摘要 |
A touch sensitive matrix display senses touch input during a sense period (TS) in a separate sense area (A 1 ) which is selected to be non-overlapping with a display area (A 2 ) in which information is displayed dependent on the touch position which is sensed in the sense area (A 1 ). During the sense period (TS), the sense area (A 1 ) is not addressed. The non-address period of time (TR) occurring between two successive sense area addressing periods (TA 2 ) of the sense area (A 1 ) lasts at least as long as, but preferably substantially longer than, the display area address period (TA 1 ,i) required to address the complete display area (A 2 ). The data displayed in the sense area (A 1 ) is refreshed by addressing the sense area (A 1 ) during the sense area address periods (TA 2 ) in-between the sense periods (TS). The data displayed in the sense area (A 1 ) will not be disturbed by the sensing and will be present between two successive sense area addressing periods (TA 2 , TA 2' ) because the pixels 10 of the matrix display have an optical state which, when not addressed, is maintained longer than the non-address period (TR).
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