Portable electronic device

An electronic device, comprising:

• a display having a transparent cover with an active image area and an inactive peripheral region;
• a light sensor under the inactive peripheral region;
• and
• an opaque layer on the transparent cover in the inactive peripheral region, wherein the opaque layer comprises an array of holes through which light passes to the light sensor while the opaque layer obscures the light sensor from view.

An electronic device, comprising:

• a front surface;
• a display on the front surface of the electronic device;
• a transparent cover on the front surface of the electronic device, wherein the transparent cover extends over an inactive region of the display;
• an opaque layer on the front surface of the electronic device and on the transparent cover;
• and
• a sensor underneath the opaque layer, wherein the opaque layer comprises a plurality of holes through which radiation passes and wherein the plurality of holes are aligned with the sensor, wherein the sensor comprises an emitter and a receiver pair configured as a proximity detector, and wherein the plurality of holes in the opaque layer are configured to allow radiation for the sensor to pass through the holes in the opaque layer while obscuring the sensor from view.