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

Claim 18:
19. A method of manufacturing 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; and the method comprises:
disposing a plurality of light emitting subunits in the array area on a surface of the base substrate, wherein each of the plurality of light emitting subunits comprises: a first electrode, a second electrode and a light emitting layer which are laminated on the 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;
disposing a connecting electrode and a dummy electrode including a first dummy electrode and a second dummy electrode in the peripheral area on the surface of the base substrate surrounding the array area, the connecting electrode being electrically connected with the first electrode; and
disposing a light extraction layer on a side of the first electrode and the connecting electrode away from the base substrate, so that projections of the first electrode and 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
disposing a pixel definition layer completely covering 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.