Array substrate and manufacturing method thereof, display panel and display device

Abstract

An array substrate and manufacturing method thereof, display panel and display device. The manufacturing method of the array substrate includes: forming, on a substrate, a first conductive pattern, a second conductive pattern and an insulating pattern, the insulating pattern at least covering an upper surface of the first conducting pattern, the first conductive pattern including a first amorphous transparent conductive pattern and a first metal pattern, and the second conductive pattern including a second amorphous transparent conductive pattern; and performing an annealing treatment to convert the first amorphous transparent conductive pattern and the second amorphous transparent conductive pattern to a first crystalline transparent conductive pattern and a second crystalline transparent conductive pattern respectively. The method addresses the problem in which a metal surface is readily oxidizable when performing an annealing treatment, thereby improving the product yield.

Dependencies are inferred from the claim text.