Patent ID: 8605060

Claim:
An electronic device comprising: a display screen having a display area configured for displaying information; a plurality of infrared emitters configured for emitting infrared rays across the display area of the display screen; at least one infrared receiver configured for receiving the infrared signals from an infrared remote control paired with the electronic device and detecting interception of the infrared rays from each of the infrared emitters by a user; a prism adjacent to the at least one infrared receiver, the prism configured for converging and directing the infrared rays from the infrared emitters and infrared rays from the infrared remote control to the at least one infrared receiver; wherein the prism comprises a first light incident surface to receive the infrared rays from the infrared remote control, a second light incident surface facing the infrared emitters to receive the infrared rays from the infrared emitters, a light reflection surface and a light emitting surface; the light reflection surface is configured to reflect the infrared rays from the first light incident surface to the light emitting surface, and the light emitting surface is configured to converge the infrared rays from the infrared emitters and infrared rays from the infrared remote control to the at least one infrared receiver; and a processing unit configured for activating and then deactivating the infrared emitters one after another, identifying operations of a user on the display area by analyzing the interception of the infrared rays emitted from each of the infrared emitters, identifying operations of a user according to the infrared signals from the infrared remote control and executing corresponding functions associated with the operations of the user.