TECHNICAL FIELD

The disclosure herein relates to the field of display technology, and in particular, to a display panel.

BACKGROUND

With development of the display technology, fingerprint recognition has been gradually becoming one of the necessities for display products. To develop full-screen display products (i.e., with narrow bezels or no bezels) with fingerprint recognition capabilities, many manufacturers endeavor to achieve on-screen fingerprint recognition.

SUMMARY

Disclosed herein is a display panel, comprising: a support; a first layer comprising a light emitter, a first region and a second region; a second layer sandwiched between the first layer and the support; wherein the first region and the second region allow light scattered by an object to transmit therethrough; wherein the second layer allows light transmitted through the first region to reach the support and comprises a light-blocking layer configured to attenuate light transmitted through the second region.

According to an embodiment, the light emitter comprises a material that exhibits electroluminescence (EL).

According to an embodiment, the second layer comprises a thin-film transistor (TFT).

According to an embodiment, the light-blocking layer is an interlayer dielectric (ILD) of the TFT.

According to an embodiment, the second layer comprises a planarization layer on the TFT and distal from the support; wherein the planarization layer comprises the light-blocking layer.

According to an embodiment, the light-blocking layer comprises a polyimide configured to attenuate the light transmitted through the second region.

According to an embodiment, the display panel further comprises a passivation layer.

According to an embodiment, the display panel further comprises an image sensor.

According to an embodiment, the image sensor is sandwiched between the support and the second layer, or the support is sandwiched between the image sensor and the second layer.

According to an embodiment, the display panel further comprises a window; the window extends through the light-blocking layer; the window is optically aligned with the image sensor; and the window is optically coupled to the light transmitted through the first region.

According to an embodiment, the window comprises a dielectric.

According to an embodiment, the window comprises a void.

According to an embodiment, the light-blocking layer comprises a portion optically coupled to the light transmitted through the first region; wherein the portion has a greater thickness than the window.

According to an embodiment, the object is a person's finger.

Disclosed herein is an electronic system comprising any of the display panel above and a touch sensor.

