Patent ID: 8599181

Claim:
A display panel, having a display area and a non-display area, comprising: a plurality of pixels disposed in the display area; at least one driving circuit electrically connected to the pixels; and at least one photosensitive region having at least one photo detector electrically connected to the at least one driving circuit, the at least one photo detector, comprising: a substrate having a transistor region and a photosensitive region; a first patterned semiconductor layer disposed on the transistor region of the substrate, wherein the first patterned semiconductor layer comprises a first doping region and a second doping region; a dielectric layer covering the first patterned semiconductor layer of the transistor region, the photosensitive region, and the substrate; a first patterned conductive layer formed on the dielectric layer of the transistor region and on the dielectric layer of the photosensitive region; an interlayer dielectric layer covering the dielectric layer and the first patterned conductive layer, wherein the interlayer dielectric layer comprises at least two openings to expose a portion of the first doping region of the first patterned semiconductor layer and a portion of the second doping region of the first patterned semiconductor layer; a second patterned semiconductor layer disposed on the interlayer dielectric layer of the photosensitive region; two first electrodes formed on the interlayer dielectric layer and electrically connected with the first patterned semiconductor layer via the at least two openings respectively; and two second electrodes formed on the portion of the second patterned semiconductor layer.