Referring to FIG. 4, the principle of shielding the signal between the drive trace S1 and the gate trace G using the shield trace B will be described below. A driving transistor T1 and a switching transistor T2 are provided in the pixel circuit. A gate and a source of the switching transistor T2 are electrically connected to the scan line Sc and the data line Da, respectively. A source and a drain of the drive transistor T1 are electrically connected to the constant voltage trace V and the light-emitting unit L, respectively. A gate of the driving transistor T1 is electrically connected to a drain of the switching transistor T2 through the gate trace G, and forms a node Q. A capacitor C is electrically connected between the node Q and the source of the drive transistor T1. When the drive traces S1 and the gate traces G are close to each other, the signals of the drive traces S1 and the gate traces G interfere with each other, causing the potential of the node G to change, and further affecting the emission effect of the light-emitting unit L. In the embodiment of the present application, the signal between the drive trace S1 and the gate trace G is shielded by the shield trace B to avoid potential changes at the node Q.

Optionally, the shield trace B is disposed at an intersection of an orthographic projection of the drive trace S1 on the shield layer and an orthographic projection of the gate trace G on the shield layer, so as to shield an area where signal interference between the drive trace S1 and the gate trace G is strongest.