Manufacturing method of display substrate, display substrate, and display device
A manufacturing method and display substrate technology, applied in the field of display devices and display substrates, capable of solving problems such as poor short circuit between pixel electrodes and gates
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Embodiment 1
[0046] This embodiment provides a method for manufacturing a display substrate. The display substrate includes a plurality of sub-pixels distributed in an array, and each sub-pixel includes a transistor, a pixel electrode, and a common electrode. The manufacturing method includes:
[0047] forming a pixel electrode on the substrate by a patterning process, and forming a gate of the transistor and a gate line connected to the gate on the substrate by a patterning process;
[0048] forming a passivation layer, making test vias on the passivation layer, and connecting the test vias to the pixel electrodes;
[0049] A common electrode material layer is formed, and the common electrode material layer is connected to the pixel electrode at the test via hole;
[0050] Carry out an open circuit-short circuit test on the common electrode material layer and the gate line. If the common electrode material layer is short-circuited with any gate line, it is determined that the gate of at l...
Embodiment 2
[0053] This embodiment provides a method for manufacturing a display substrate, which includes a plurality of sub-pixels distributed in an array, and each sub-pixel includes a transistor, a pixel electrode 12 and a common electrode 13a. figure 1 The pixel electrode 12, the common electrode 13a and the gate 111 of the transistor in the pixel circuit are shown in . Other structures of the transistor can be arranged according to conventional design, so in figure 1 not shown in . Gates 111 of transistors of a plurality of pixel circuits are connected to one gate line 16 .
[0054] The following is the complete scheme of the manufacturing method.
[0055] Step 1: Form the pixel electrode 12 on the substrate 10 by patterning, and form the gate 111 of the transistor and the gate line 16 connected to the gate 111 on the substrate 10 by patterning.
[0056]The sequence of forming the pixel electrode 12 and the gate electrode 111 is not required. FIG. 2( a ) shows the shape of the p...
Embodiment 3
[0082] This embodiment provides a display substrate, which is obtained through the manufacturing method provided in Embodiment 1 or Embodiment 2 of the present invention.
[0083] It can be understood that in part of the display substrate produced by this manufacturing method, there is a test via hole connecting the layer where the common electrode is located and the pixel electrode (the test via hole can also be a pixel electrode via hole at the same time); in this test via hole There may be no conductive material, or part of the conductive material may be reserved (if the test via hole is a pixel electrode via hole, there must be a conductive material in it for the connection between the drain electrode and the pixel electrode, but no matter what form, the test via hole remains conductive material should be disconnected from the common electrode).
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