US 2023/0054532 A1 · DISPLAY PANEL, PREPARATION METHOD THEREFOR AND DISPLAY APPARATUS

Abstract

The present application relates to the technical field of display, and discloses a display panel, a preparation method therefor, and a display apparatus. The material of a filter film layer in the display panel comprises a conductive material, so the filter film layer may be used as a detection plate of a fingerprint identification circuit. Moreover, since the filter film layer is located on the side of a display function film layer away from a base substrate, the filter film layer is far away from a signal line in the display function film layer, and is not easily affected by the signal line. When the filter film layer is used as the detection plate, the signal-to-noise ratio of a fingerprint signal detected by the fingerprint identification circuit may be larger, and the fingerprint identification effect may be better. Moreover, when the filter film layer is used as the detection plate, the distance between the filter film layer and an obstacle relative to the display function film layer is relatively short. Therefore, the signal detected by the fingerprint identification circuit may be made larger, thereby ensuring the fingerprint identification effect.

Claims20

Dependent claims

A display panel, comprising:

a base substrate;
a display function film layer disposed on the base substrate, the display function film layer being provided with a plurality of light-emitting regions;
a filter film layer disposed on a side of the display function film layer away from the base substrate, wherein the filter film layer is capable of transmitting light emitted from the plurality of light-emitting regions, and a material of the filter film layer comprises a conductive material;
and
a fingerprint recognition circuit disposed on the base substrate, wherein the fingerprint recognition circuit is connected to the filter film layer, and configured for fingerprint recognition based on light reflected by an obstacle and received by the filter film layer.

2 more elements

A display apparatus, comprising:

a fingerprint recognition driving circuit and a display panel;
wherein the display panel comprises:
a base substrate;
a display function film layer disposed on the base substrate, the display function film layer being provided with a plurality of light-emitting regions;
a filter film layer disposed on a side of the display function film layer away from the base substrate, wherein the filter film layer is capable of transmitting light emitted from the plurality of light-emitting regions, and a material of the filter film layer comprises a conductive material;
and
a fingerprint recognition circuit disposed on the base substrate, wherein the fingerprint recognition circuit is connected to the filter film layer, and configured for fingerprint recognition based on light reflected by an obstacle and received by the filter film layer;
and
wherein the fingerprint recognition driving circuit is connected to the fingerprint recognition circuit in the display panel, and is configured to provide a driving signal for the fingerprint recognition circuit.

6 more elements

Dependencies are inferred from the claim text.

Display panel, preparation method therefor and display apparatus

Life of this patent

Display panel, preparation method therefor and display apparatus

Life of this patent

Abstract

Claims20