Patent ID: 11925087
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 17:
18. A preparation method of a display substrate, wherein the display substrate comprises a first display region and a second display region, the first display region comprises a plurality of first pixels distributed in an array; the first pixel comprises a passive light-emitting device, the second display region comprises a plurality of second pixels, the second pixel comprises an active light-emitting device and a pixel drive circuit electrically connected to the active light-emitting device; the preparation method comprises:
forming the pixel drive circuit in the second display region on a substrate; and
on a side of the pixel drive circuit away from the substrate, forming a plurality of first cathode blockers in the first display region, and the first cathode blocker comprises at least one first groove; wherein, the first cathode blocker is provided between at least two adjacent columns of first pixels, to make cathodes of the two adjacent columns of first pixels disconnected; and, forming the passive light-emitting device in the first display region and the active light-emitting device in the second display region, and the active light-emitting device is electrically connected to the pixel drive circuit.