A display device, comprising: a display panel, comprising a display array comprising a plurality of display pixels which are arrayed, wherein each of the display pixels comprises a luminous element; an imaging array disposed at a side of the display array facing away from a light exiting direction of the display panel, wherein the imaging array comprises a plurality of imaging pixels which are arrayed; and a pinhole array layer disposed at a side of the imaging array facing to the light exiting direction of the display panel, wherein the pinhole array layer comprises a plurality of pinholes which are arrayed, the plurality of pinholes are corresponding to the plurality of imaging pixels, a display driver circuit connected to a plurality of display gate lines of the display array of the display panel so as to provide a scanning signal to the display pixels of the display array for displaying; and an image detection circuit connected to a plurality of imaging gate lines of the imaging array of the display panel so as to provide a scanning signal to the imaging pixels of the imaging array for imaging, characterized in that the image detection circuit includes at least one image detection circuit unit comprising a current-voltage converter, a filter circuit and a comparison circuit, the current-voltage converter is configured to convert a current signal outputted by the imaging pixel into a voltage signal and to deliver the voltage signal to the filter circuit, the filter circuit is configured to filter the voltage signal and to deliver the filtered voltage signal to the comparison circuit, and the comparison circuit is configured to compare the filtered volage signal with a reference signal. a display panel, comprising a display array comprising a plurality of display pixels which are arrayed, wherein each of the display pixels comprises a luminous element; an imaging array disposed at a side of the display array facing away from a light exiting direction of the display panel, wherein the imaging array comprises a plurality of imaging pixels which are arrayed; and a pinhole array layer disposed at a side of the imaging array facing to the light exiting direction of the display panel, wherein the pinhole array layer comprises a plurality of pinholes which are arrayed, the plurality of pinholes are corresponding to the plurality of imaging pixels, a display array comprising a plurality of display pixels which are arrayed, wherein each of the display pixels comprises a luminous element; an imaging array disposed at a side of the display array facing away from a light exiting direction of the display panel, wherein the imaging array comprises a plurality of imaging pixels which are arrayed; and a pinhole array layer disposed at a side of the imaging array facing to the light exiting direction of the display panel, wherein the pinhole array layer comprises a plurality of pinholes which are arrayed, the plurality of pinholes are corresponding to the plurality of imaging pixels, a display driver circuit connected to a plurality of display gate lines of the display array of the display panel so as to provide a scanning signal to the display pixels of the display array for displaying; and an image detection circuit connected to a plurality of imaging gate lines of the imaging array of the display panel so as to provide a scanning signal to the imaging pixels of the imaging array for imaging, characterized in that the image detection circuit includes at least one image detection circuit unit comprising a current-voltage converter, a filter circuit and a comparison circuit, the current-voltage converter is configured to convert a current signal outputted by the imaging pixel into a voltage signal and to deliver the voltage signal to the filter circuit, the filter circuit is configured to filter the voltage signal and to deliver the filtered voltage signal to the comparison circuit, and the comparison circuit is configured to compare the filtered volage signal with a reference signal.