WATCH AND NFC ANTENNA THEREOF

A near field communication (NFC) antenna for mounting on a watch. The watch includes a display screen. The NFC antenna includes a printed circuit board (PCB) for disposed on the display screen of the watch, a number of concentrically wound coils disposed on a surface of the PCB and a shielding layer disposed on an opposite surface of the PCB to the coils. The shielding layer is sandwiched between the display screen and the surface of the PCB, spatially corresponding to the coils. A related watch is also provided.

DETAILED DESCRIPTION

Referring to the FIGURE, a watch10includes a near field communication (NFC) antenna11, a display screen12, and a printed circuit board (PCB)13. The NFC antenna11includes a plurality of concentrically wound coils110with coil sizes changing gradually. In the embodiment, each of the plurality of coils110is rectangular. In an alternative embodiment, each of the plurality of coils110is circular. The display screen12is configured to display time, date, and so on.

The NFC antenna11is disposed on a surface of the PCB13. In the embodiment, the PCB13is a flexible printed circuit (FPC). An antenna shielding layer (not shown) is disposed on the opposite surface of the PCB13. The PCB13is pasted on a surface of the display screen12. The shielding layer is sandwiched between the display screen12and the PCB13, which shields the NFC antenna11from electrical elements (not shown) disposed on the PCB13, resulting in reduced electrostatic interference therebetween.

It is understood that the present disclosure may be embodied in other forms without departing from the spirit thereof. The present examples and embodiments are to be considered in all respects as illustrative and not restrictive, and the disclosure is not to be limited to the details given herein.