Array substrate, flat display panel and manufacturing method for the same

A flat display panel, comprising:

• a color filter substrate;
• an array substrate disposed oppositely to the color filter substrate;
• and
• a liquid crystal layer disposed between the color filter substrate and the array substrate;
• wherein, the array substrate includes:
• a substrate;
• a common electrode disposed on the substrate;
• an insulation layer disposed on the common electrode, wherein, the insulation layer includes multiple first regions and multiple second regions, and the first regions and the second regions are disposed alternately;
• and
• multiple pixel electrodes respectively disposed on the first regions of the insulation layer;
• wherein, a thickness of the first regions and a thickness of the second regions are different;
• and
• wherein, a bottom of the first region and a bottom of the second region are coplanar, and a top of the second region is higher than the bottom of the first region.

A manufacturing method for an array substrate, comprising:

• sequentially forming a common electrode, an insulation layer and pixel electrode layer on a substrate;
• coating a photoresist layer on the pixel electrode layer;
• exposing and developing the photoresist layer in order to form a patterned photoresist layer;
• utilizing the patterned photoresist layer and a first etching method to etch the pixel electrode layer in order to form multiple spaced pixel electrodes;
• and
• utilizing the patterned photoresist layer and a second etching method to etch the insulation layer such that the insulation layer forms multiple alternate first regions and second regions, wherein, a thickness of the first regions and a thickness of the second regions are different;
• wherein, a bottom of the first region and a bottom of the second region are coplanar, and a top of the second region is higher than the bottom of the first region.