Array substrate and preparation method thereof
An array substrate and base substrate technology, which is applied in the field of array substrates and their preparation, can solve the problem that the pixel electrode layer 14' is prone to breakage and the like, and achieve the effect of avoiding pollution
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[0049] Please refer again Figure 8 As shown, corresponding to Embodiment 1 of the present invention, Embodiment 2 of the present invention provides a method for preparing an array substrate, including:
[0050] Provide a base substrate;
[0051] Forming a metal layer, a passivation layer and a flat layer on the base substrate in sequence;
[0052] The flat layer and the passivation layer on the metal layer are etched in two steps to form contact holes, so that the metal layer is at least partially exposed to the contact holes, and the contact holes are located at the passivation layer. The hole wall and the hole wall at the flat layer are in the same plane or form an obtuse angle;
[0053] A continuous pixel electrode layer is formed at the flat layer and the contact hole, and the pixel electrode layer is connected to the metal layer.
[0054] Specifically, in this embodiment, the etching of the flat layer and the passivation layer on the metal layer is divided into two steps, wherein...
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