An array substrate is provided. The array substrate includes a display area having a first array of subpixels; and a partially transparent area having a second array of subpixels. The partially transparent area includes a plurality of light emitting regions spaced apart from each other by a substantially transparent non-light emitting region. The second array of subpixels is limited in the plurality of light emitting regions. The array substrate further includes a plurality of photosensors and a plurality of first thin film transistors in the substantially transparent non-light emitting region. A respective one of the plurality of photosensors includes a first polarity semiconductor layer, a second polarity semiconductor layer, and an intrinsic semiconductor layer connecting the first polarity semiconductor layer and the second polarity semiconductor layer.