Array substrate, manufacturing method thereof, and display device

Abstract

The present invention relates to an array substrate, a manufacturing method thereof, and a display device. The array substrate includes: a substrate, a first grid scanning line formed on the substrate, and a first gate scanning line formed on the first grid scanning line. A gate insulating layer, an active layer formed on the first gate insulating layer, a data scanning line formed on the active layer and perpendicular to the first gate scanning line, and a data scanning line formed on the first gate insulating layer The pixel electrode in the pixel unit defined by the first gate scan line and the data scan line on the data scan line, the array substrate further includes: a second gate scan line formed on the first gate scan line above or below a gate scan line, the second gate scan line substantially coincides with the first gate scan line in the stacking direction of the array substrate, and the second gate scan line coincides with the The first gate scan line, the active layer, the data scan line and the pixel electrode are insulated.

Description

technical field [0001] The present invention relates to the field of display technology, in particular, to an array substrate, a manufacturing method thereof, and a display device. Background technique [0002] With the development of display technology, display panels with high transmittance, large size, low power consumption and low cost have become the future development direction. [0003] The gate scanning lines of the existing TFT-LCD array substrates are mostly single-line structures. figure 1 shows a top view of an existing array substrate structure, figure 2 shows along the figure 1 A cross-sectional view taken along line A-A. Such as figure 1 and 2 As shown, a gate scanning line 12 is formed on a glass substrate 11, and an insulating layer 13 is covered on the gate scanning line 12, and the insulating layer 13 is usually made of silicon nitride. An active layer 14 is formed on the insulating layer 13, and a data scanning line 15 is formed on the active layer...

AI Technical Summary

Problems solved by technology

[0005] However, the array substrate manufactured in this way has the following disadvantages: first, there are many black matrix light-shielding areas corresponding to the grid structure composed of data scanning lines and gate scanning lines, and the aperture ratio and transmittance of the display panel are relatively low; The resolution of the panel is limited by the data scanning line and the gate scanning line, which is not conducive to the design and manufacture of high PPI (Pixelsperinch, pixels per inch) products; the three driving methods are line inversion mode, and the picture quality is not ideal

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