Array base plate and fabricating method thereof, display panel and driving method thereof, and displaying device

An array base plate, wherein the array base plate comprises:

• a substrate base plate;
• a repairing line and a plurality of data lines that are provided on one side of the substrate base plate, wherein the plurality of data lines include a first data line, the first data line has a first breaking point, and first data lines located on two sides of the first breaking point are individually connected to the repairing line;
• a first insulating layer provided on one side of the repairing line and the plurality of data lines that is opposite to the substrate base plate;
• and
• a plurality of pixel electrodes provided on one side of the first insulating layer that is opposite to the substrate base plate, wherein the plurality of pixel electrodes include a first pixel electrode;
• the first data line is connected to the first pixel electrode, and is for transmitting a first voltage signal to the first pixel electrode;
• and
• an orthographic projection of the repairing line on the substrate base plate and an orthographic projection of the first pixel electrode on the substrate base plate intersect or overlap;
• wherein the array base plate further comprises a plurality of switching parts that are arranged in a same layer as the data lines and have a same material as a material of the data lines, and the pixel electrodes and the switching parts are connected by via holes provided in the first insulating layer;
• the array base plate further comprises a thin-film-transistor array provided on one side of the substrate base plate, and the thin-film-transistor array comprises a plurality of thin-film transistors;
• the thin-film-transistor array comprises:
• a grid-line layer, a second insulating layer and a semiconductor layer that are arranged in stack on one side of the substrate base plate, and the repairing line and the plurality of data lines are provided on one side of the semiconductor layer that is opposite to the substrate base plate;
• the grid-line layer comprises a plurality of grid lines, orthographic projections of the grid lines on the substrate base plate and orthographic projections of the data lines on the substrate base plate intersect, and the grid lines are further used as grids of the thin-film transistors;
• the semiconductor layer comprises active layers of the thin-film transistors;
• and
• the data lines are further used as sources of the thin-film transistors, and the switching parts are further used as drains of the thin-film transistors.

A fabricating method of an array base plate, wherein the method comprises:

• providing a substrate base plate;
• forming a repairing line and a plurality of data lines on one side of the substrate base plate, wherein the plurality of data lines include a first data line, the first data line has a first breaking point, and first data lines located on two sides of the first breaking point are individually connected to the repairing line;
• forming a first insulating layer on one side of the repairing line and the plurality of data lines that is opposite to the substrate base plate;
• and
• forming a plurality of pixel electrodes on one side of the first insulating layer that is opposite to the substrate base plate, wherein the plurality of pixel electrodes include a first pixel electrode;
• wherein the first data line is connected to the first pixel electrode, and is for transmitting a first voltage signal to the first pixel electrode;
• and
• an orthographic projection of the repairing line on the substrate base plate and an orthographic projection of the first pixel electrode on the substrate base plate intersect or overlap;
• wherein before the step of forming the repairing line and the plurality of data lines on the one side of the substrate base plate, the method further comprises:
• sequentially forming a grid-line layer and a second insulating layer on one side of the substrate base plate, wherein the grid-line layer comprises a plurality of grid lines, and orthographic projections of the grid lines on the substrate base plate and orthographic projections of the data lines on the substrate base plate intersect;
• and
• the step of forming the repairing line and the plurality of data lines on the one side of the substrate base plate comprises:
• forming the plurality of data lines on one side of the second insulating layer that is opposite to the substrate base plate;
• detecting the first breaking point;
• and
• according to a minimum distance between the first breaking point and the grid lines, forming the repairing line:
• wherein the plurality of pixel electrodes further include a second pixel electrode, and the second pixel electrode is adjacent to the first pixel electrode in a direction of extension of the first data line;
• and
• the step of, according to the minimum distance between the first breaking point and the grid lines, forming the repairing line comprises:
• if, in the direction of extension of the first data line, the minimum distance between the first breaking point and the grid lines is less than a preset threshold, then forming the repairing line, wherein the orthographic projection of the repairing line on the substrate base plate and the orthographic projection of the first pixel electrode on the substrate base plate intersect or overlap, and the orthographic projection of the repairing line on the substrate base plate and an orthographic projection of the second pixel electrode on the substrate base plate intersect or overlap.