Devices and methods for providing access to internal component

An electronic device, comprising:

• an organic light-emitting diode display having an array of pixels that displays images;
• a light sensor behind an active area of the light-emitting diode display;
• and
• processing circuitry that operates the organic light-emitting diode display in first and second modes, wherein the light sensor detects light through the light-emitting diode display in the first mode and is concealed by the images in the second mode.

An electronic device comprising:

• a display having an array of pixels on a display substrate and having a touch sensor that receives touch input;
• a light sensor behind the display substrate that detects light through the display substrate;
• and
• processing circuitry that controls the array of pixels to produce a transparent region on the display over the light sensor in response to the touch input.