Abstract: An electronic device includes an upper shell, a bottom shell matched with the upper shell, a printed circuit board (PCB) and a loudspeaker module connected to the PCB. The loudspeaker module includes a loudspeaker and a flexible circuit board including two exposed metal pads electrically connected with the loudspeaker. The PCB includes two connecting pins contacting with the metal pads of the flexible circuit board to electronically connect the PCB to the loudspeaker.

Abstract: A keyboard device provided by the present disclosure comprises a key layer, a dome layer, and a light guide film layer positioned between the key layer and the dome layer. The light guide film layer comprises a light guide film and a rubber layer fixed on a lower surface of the light guide film. The light guide film and the rubber layer are integrally formed together by molding. The rubber layer has an upper surface facing the light guide film and a lower surface facing away from the light guide film. The lower surface of the rubber layer defines at least one receiving groove. A light guide film layer applied to a keyboard device is also provided by the present disclosure.

Abstract: A printed circuit board comprising a hard portion of at least one main hard PCB, and at least one secondary hard PCB; and a flexible portion to connect the main hard PCB to the secondary hard PCB both physically and electrically and enabling the secondary hard PCB to move in relation to the main hard PCB.

Abstract: An electronic device includes a housing, a capacitive touch button, a PCB and a connection mechanism. The capacitive touch button is secured in the housing and includes a number of button bodies. The PCB is secured in the housing. The connection mechanism includes a circuit board and a connection element. The circuit board is secured in the housing and includes a number of sensor electrodes and a number of electrical protrusions, which are all arranged corresponding to the number of button bodies of the capacitive touch button. The sensor electrodes are connected to the capacitive touch button and the electrical protrusions. The connection element includes a first end and a second end. The first end is fixed on the PCB. The second end resists against the electrical protrusions for electrically connecting the capacitive touch button and the controller of the PCB.

Abstract: A circuit board includes an induction coil, a ground cable, and an audio signal cable. The induction coil and the audio signal cable are respectively allocated at the two sides of the ground cable. The induction coil and the audio signal cable are spaced a predetermined distance apart. The predetermined distance is equal to or greater than an effective inductive distance of the induction coil.

Abstract: A printed circuit board comprising a hard portion of at least one main hard PCB, and at least one secondary hard PCB; and a flexible portion to connect the main hard PCB to the secondary hard PCB both physically and electrically and enabling the secondary hard PCB to move in relation to the main hard PCB.

Abstract: An electronic device includes a housing, a capacitive touch button, a PCB and a connection mechanism. The capacitive touch button is secured in the housing and includes a number of button bodies. The PCB is secured in the housing. The connection mechanism includes a circuit board and a connection element. The circuit board is secured in the housing and includes a number of sensor electrodes and a number of electrical protrusions, which are all arranged corresponding to the number of button bodies of the capacitive touch button. The sensor electrodes are connected to the capacitive touch button and the electrical protrusions. The connection element includes a first end and a second end. The first end is fixed on the PCB. The second end resists against the electrical protrusions for electrically connecting the capacitive touch button and the controller of the PCB.