Patent ID: 11916086
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A manufacturing method of a display panel, comprising steps of:
providing a substrate;
forming a first barrier layer on the substrate;
forming a conductive layer on the first barrier layer;
forming a second barrier layer on the conductive layer, wherein a material of the first barrier layer and a material of the second barrier layer are same;
coating a photoresist on the second barrier layer, exposing and developing the photoresist to form a photoresist pattern;
performing a first wet etching on the first barrier layer, the conductive layer, and the second barrier layer, to form a first protrusion on an end of the second barrier layer;
performing a plasma treatment on the photoresist pattern, to form a first gap between the photoresist pattern and the second barrier layer, wherein a depth of the first gap is equal to a length of the first protrusion;
performing a second wet etching on the first barrier layer, the conductive layer, and the second barrier layer;
removing the first protrusion to form a glossy, brim-less three-layer conductive layer structure; and
after removing the first protrusion, stripping off the photoresist pattern.