Photoelectric sensor, display panel and display device

The invention provides a photoelectric sensor, which comprises a photoelectric conversion unit used for receiving optical signals and converting the optical signals into electric signals; and an optical processing layer arranged at the light entering side of the photoelectric conversion unit and used for processing the optical signals to reduce luminous flux of light reaching the photoelectric conversion unit. The invention also provides a display panel comprising the photoelectric sensor, and a display device. The photoelectric sensor can be used in high light intensity, so that light intensity range capable of being accurately measured by the display panel and the display device can be improved greatly.