Circuit board assembly for blocking unwanted light, camera module, and electronic device having the same

A camera module comprising:

• a voice coil motor;
• a lens assembly disposed in the voice coil motor;
• and
• a circuit board assembly connected to the voice coil motor;
• wherein the circuit board assembly comprises a circuit board defining a hole, a sensor disposed in the hole, and an optical blocking body, an inner sidewall of the hole and an outer periphery of the sensor cooperatively define a gap, the optical blocking body is disposed within the gap;
• and
• the circuit board comprises a base board and a photomask, the photomask is arranged on the base board, the base board comprises a plurality of conductive circuit layers and a plurality of dielectric layers, the plurality of conductive circuit layers and the plurality of dielectric layers are alternately arranged, the sensor is electrically connected to the plurality of the conductive layers, the hole penetrates the photomask, the plurality of dielectric layers, and the plurality of conductive circuit layers, the optical blocking body, the photomask, and the plurality of dielectric layers are configured to block light from an ambient environment.

An electronic device comprising:

• a casing defining an opening;
• and
• a camera module disposed within the casing;
• a portion of the camera is exposed from the opening;
• wherein the camera module comprising:
• a voice coil motor;
• a lens assembly disposed in the voice coil motor;
• and
• a circuit board assembly connected to the voice coil motor;
• the circuit board assembly comprises a circuit board defining a hole, a sensor disposed in the hole, and an optical blocking body, an inner sidewall of the hole and an outer periphery of the sensor cooperatively define a gap, the optical blocking body is disposed within the gap;
• the circuit board comprises a base board and a photomask, the photomask is arranged on the base board, the base board comprises a plurality of conductive circuit layers and a plurality of dielectric layers, the plurality of conductive circuit layers and the plurality of dielectric layers are alternately arranged, the sensor is electrically connected to the plurality of the conductive layers, the hole penetrates the photomask, the plurality of dielectric layers, and the plurality of conductive circuit layers, the optical blocking body, the photomask, and the plurality of dielectric layers are configured to block light from an ambient environment.