Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a display area and a frame area. The frame area is provided with a display gate driving circuit which comprises a plurality of display shift registers; the display shift register comprises a multiplexing shift register, and the multiplexing shift register comprises a first multiplexing shift register and a second multiplexing shift register; the fingerprint identification stage comprises a reset stage and a fingerprint signal reading stage; in the reset stage, the display gate driving circuit outputs a display scanning signal of the nth frame of display picture, and the first multiplexing shift register outputs a reset control signal of fingerprint identification at the same time; and in a fingerprintsignal reading stage, the display gate driving circuit outputs a display scanning signal of the (n+m)th frame of display picture, and the second multiplexing shift register outputs an output controlsignal of fingerprint identification at the same time. According to the technical scheme, the display stage and the fingerprint identification stage are carried out at the same time, and the narrow frame design of the display panel provided with embedded fingerprint identification is facilitated.

Description

technical field [0001] Embodiments of the present invention relate to display technologies, and in particular, to a display panel and a display device. Background technique [0002] With the development of display technology, display screens with high screen-to-body ratio and narrow bezels are becoming more and more popular due to their good user experience. The screen-to-body ratio refers to the ratio of the screen area to the overall machine area. A high screen-to-body ratio has better visual effects and user experience. [0003] Fingerprint is an innate and unique biological feature, and there are more and more electronic devices with fingerprint recognition function. Taking mobile phones as an example, fingerprint recognition can be applied to various scenarios such as unlocking and payment. In order to increase the screen-to-body ratio and also have the fingerprint recognition function, the optical fingerprint recognition solution embedded in the screen has attracted ...

AI Technical Summary

Problems solved by technology

Existing optical fingerprint recognition schemes generally use a fingerprint recognition circuit with at least two transistors and a photodiode to realize fingerprint recognition. The gate of the transistor in the fingerprint recognition circuit needs to drive signal lines and the corresponding gate drive circuit to provide signals. Setting the gate drive circuit will increase the width of the display panel frame, which is not conducive to narrow frame design

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