Patent ID: 11942239
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A manufacturing method of a conductive film, comprising following steps:
providing a substrate, wherein the substrate comprises a first surface and a second surface, which are opposite to each other;
forming a first metal layer and a second metal layer on the first surface, wherein the first metal layer is positioned on the first surface, and the second metal layer is positioned on a surface of the first metal layer away from the substrate; and
forming a third metal layer on a surface of the second metal layer away from the substrate, wherein the third metal layer fully covers edges of the second metal layer and contacts the first metal layer;
etching the first metal layer and the second metal layer after forming the first metal layer and the second metal layer on the first surface;
etching the third metal layer after forming the third metal layer on the surface of the second metal layer away from the substrate;
forming a complete conductive film with the first metal layer, the second metal layer, and the third metal layer after etching the third metal layer; and
forming a light-shielding layer on a surface of the third metal layer away from the substrate;
wherein the light-shielding layer shields reflected light on two opposite sides of the second metal layer after etching the third metal layer.