| 摘要 |
A display for controlling information display. In one embodiment, the display has a display panel having a display area for displaying information and a peripheral portion surrounding the display area, a plurality of acoustic/ultrasonic transducers, {X i }, arranged at a plurality of selected locations in the peripheral portion, each acoustic/ultrasonic transducer X i being configured to transmit a first signal S1 i with frequency band f i in a first duration, ”t di , and to receive a second signal S2 i in a second duration, ”T di , periodically at each period, where the second signal S2 i is reflected from the first signal S1 i by at least one object, and a processor in communication with the plurality of acoustic/ultrasonic transducers {X i } for processing the received second signals {S2 i } from the plurality of acoustic/ultrasonic transducers {X i } to determine a location and a gesture of the at least one object relative to the display area. |
