Handheld electronic device with keypad assembly comprising receiving coil transforming electromagnetic waves into power

摘要

A handheld electronic device includes a housing, a display screen and a keypad assembly. The keypad assembly includes a FPC board, a number of press keys and a light guiding module. The press keys are held on the FPC board. The light guiding module includes a light guiding plate and a light source. The light guiding plate is mounted on the press keys. The light source is coupled to the FPC board and provides input light for the light guiding plate. The keypad structure further includes a receiving coil and a shielding layer. The receiving coil surrounds a periphery of the press keys. The receiving coil transfers electromagnetic waves into power, and charges the handheld electronic device. The shielding layer is laid on and adhered to the press keys. The light guiding plate is laid on and adhered to the shielding layers.

主权项

1. A handheld electronic device comprising;
a housing, a display screen mounted on the housing, and a keypad assembly received in the housing, wherein the keypad assembly comprises:
a flexible printed circuit board;a plurality of press keys located on the flexible printed circuit board; anda light guiding module, wherein the light guiding module comprises a light guiding plate and a light source, the light guiding plate is adjacent to the housing and mounted to the plurality of press keys, the light source is electronically coupled to the flexible printed circuit board and provides input light for the light guiding plate; the keypad assembly further comprises:a receiving coil located on the flexible printed circuit board; and surrounding a periphery of the plurality of the press keys and electronically connected to the flexible printed circuit hoard, wherein the receiving coil transforms electromagnetic waves into power, and charges the handheld. electronic device; anda shielding layer laid on and adhered to the plurality of press keys to prevent interference between the receiving coil and the plurality of press keys, wherein the light guiding plate is laid on and adhered to the shielding layers.