| 摘要 |
A liquid crystal display (LCD) device ( 100 ) having an integrated touchscreen, includes a touchscreen surface and liquid crystal (LC) layer ( 20 ) that are partitioned according to the touchscreen keys ( 200 ). A probe signal source ( 82 ) is disposed within the device for transmitting a probe signal through an opening in the LC layer, toward the touchscreen surface. The device further includes a probe signal sensor ( 92, 92 ') configured to sense reflections of the probe signal from the touchscreen surface, in order to detect user contact. In order to determine which particular touchscreen key is being touched, the probe signal opening scans through the set of keys one at a time.
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