Patent ID: 11950450
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 0:
1. A display substrate, wherein the display substrate is defined to be an array area and a peripheral area surrounding the array area;
the display substrate comprises a base substrate;
the array area comprises a plurality of light emitting subunits; each of the plurality of light emitting subunits comprises: a first electrode, a second electrode and a light emitting layer which are laminated on a surface of the base substrate; the light emitting layer is between the first electrode and the second electrode; the first electrode is farther away from the base substrate than the light emitting layer; the first electrodes of the plurality of light emitting subunits are electrically connected with each other;
the peripheral area comprises a connecting electrode and a dummy electrode including a first dummy electrode and a second dummy electrode, the connecting electrode is on the surface of the base substrate and at least partially surrounds the array area; the connecting electrode is electrically connected with the first electrodes of the plurality of light emitting subunits;
the display substrate further comprises a light extraction layer on a side of the first electrode and the connecting electrode away from the base substrate; and projections of the first electrodes of the plurality of light emitting subunits and a projection of the connecting electrode on the base substrate are within a projection of the light extraction layer on the base substrate in at least one direction parallel to the surface; and
a pixel definition layer completely covers a surface of the second dummy electrode away from the base substrate;
wherein the second dummy electrode comprises two ring-shaped sub-electrodes, and the pixel definition layer is disposed between the two ring-shaped sub-electrodes of the second dummy electrode, and the pixel definition layer also covers a side surface of the second dummy electrode.