In the related art, a fingerprint identification display panel includes a light-emitting pixel, a light shielding layer having through holes thereon, and a photodetector disposed at the other side of the light shielding layer. The light-emitting pixel emits light, and the light is then reflected by the touch interface touched by the finger. The reflected light is incident on the photodetector through the through hole of the light shielding layer, and then the received light is detected by the photodetector to realize fingerprint identification. However, in order not to affect display, the through hole is usually disposed between adjacent light-emitting pixels, and thus the area of the through holes is small, so that the light received by the photodetector is limited, and cannot be accurately detected.

In present disclosure, by providing a through hole in the sub-pixel region, it is possible to enable the area ratio of the through hole larger, for example, a ratio of the area of the orthographic projection of the through hole on the substrate to the area of the orthographic projection of the sub-pixel region on the substrate is greater than or equal to 30%, or even greater than 40%, thereby ensuring the photodetector to receive more light, and effectively improving detection accuracy.

Referring to FIGS. 1, 2 and 3, FIG. 1 schematically shows a schematic structural view of a first embodiment of a fingerprint identification display panel of present disclosure; FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1; and FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1.