Patent ID: 11871632
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 8:
9. A manufacturing method of an array substrate, comprising:
providing a base substrate comprising a display area and a border area around the display area;
forming a film layer of an interlayer dielectric layer in the display area and the border area on the base substrate;
patterning the film layer of the interlayer dielectric layer to form a plurality of grooves in a part of the interlayer dielectric layer within the border area;
forming a film layer of a signal line in the border area on the base substrate, and the film layer of the signal line covers the patterned film layer of the interlayer dielectric layer;
patterning the film layer of the signal line to form a pattern of the signal line;
forming a film layer of an electrode line in the display area and the border area on the base substrate, and the film layer of the electrode line is overlapped on a surface of the pattern of the signal line away from the base substrate, so that overlapping surfaces of the pattern of the signal line and the film layer of the electrode line are two concave-convex surfaces which are fitted to each other; and
patterning the film layer of the electrode line to form a pattern of the electrode line,
wherein the pattern of the signal line comprises a first body parallel to the base substrate and a plurality of first recesses recessed from a surface of the first body away from the base substrate in a direction towards the base substrate,
the manufacturing method further comprises:
before forming the film layer of the interlayer dielectric layer, forming a conductive layer in the border area on the base substrate, wherein,
the interlayer dielectric layer is formed on the conductive layer, and the plurality of the first recesses respectively pass through the plurality of grooves to electrically contact the conductive layer, and wherein a thickness of the first body of the signal line in a direction perpendicular to the base substrate is greater than a thickness of a part of the signal line located within the first recess; and a border, away from the display area, of an orthographic projection of the conductive layer on the base substrate coincides with a border, away from the display area, of an orthographic projection of the signal line on the base substrate.