Array substrate and manufacturing method thereof, and display device including the array substrate

Abstract

An array substrate and manufacturing method thereof and a display device having the array substrate are provided. The array substrate includes a non-pixel region distributed in the form of a grid and a plurality of sub-pixel regions formed by being surrounded by the non-pixel region, a plurality of scan lines () and data lines () disposed in a crossing manner are provided within the non-pixel region, and a common electrode () is provided in the sub-pixel regions and the non-pixel region. A zone of the common electrode () corresponding to the sub-pixel regions has a first thickness, a zone of the common electrode () corresponding to the scan lines () and/or the data lines () has a second thickness, and the first thickness is smaller than the second thickness. By means of arranging the common electrode () to have such a structure that thickness of its zone corresponding to scan lines () and/or data lines () in a non-pixel region is larger than thickness of its zone corresponding to sub-pixel regions, the ability of conductivity of the common electrode () can be enhanced, and this makes the voltage distribution on the whole liquid crystal display panel for the common electrode () be more even. Thus, the display quality of picture is improved, and the quality grade of the display device is promoted.