Patent ID: 11889721
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method of manufacturing a display substrate, comprising:
forming a switch unit on a base substrate, wherein the switch unit comprises an output electrode;
forming a planarization layer on one side of the switch unit away from the base substrate, wherein a region, corresponding to the output electrode, of the planarization layer is provided with a planarization layer via hole, and an orthographic projection of the planarization layer via hole onto the base substrate is located within an orthographic projection region of the output electrode onto the base substrate;
etching a surface of a region, exposed through the planarization layer via hole, of the output electrode through a wet etching process by using the planarization layer as a mask, to remove an oxidized portion formed on the surface of the region when curing the planarization layer; and
forming a pixel electrode on one side of the planarization layer away from the switch unit, wherein the pixel electrode is in contact with the output electrode through the planarization layer via hole,
wherein the method further comprises:
forming an insulating layer and a common electrode sequentially on one side of the pixel electrode away from the planarization layer,
wherein after forming the planarization layer on one side of the switch unit away from the base substrate, the method further comprises:
curing the planarization layer for less than or equal to 20 minutes,
wherein the planarization layer is in direct contact with the switch unit, and the planarization layer is a single-layer structure.