A kind of array substrate and repairing method thereof

Abstract

An array substrate and a repair method therefor. The array substrate comprises: adjacent two levels of GOA unit circuits, an output end of an Nᵗʰ level GOA unit circuit being connected to an Nᵗʰ level gate line, and an output end of an N+1ᵗʰ level GOA unit circuit being connected to an N+1ᵗʰ level gate line; a repair structure provided between the Nᵗʰ level gate line and the N+1ᵗʰ level gate line, the repair structure being used for being melted to allow the Nᵗʰ level gate line to be connected to the N+1ᵗʰ level gate line when either the Nᵗʰ level GOA unit circuit or the N+1ᵗʰ level GOA unit circuit is damaged. The beneficial effect is such that: by means of the repair structure additionally provided between two levels of gate lines, when a level of GOA unit circuit is damaged, the repair structure is melted by utilizing a laser to allow adjacent two levels of gate lines to be connected and to be driven by a same level of GOA unit circuit, and normal display of a panel remains unaffected, thus implementing a repair function for a GOA circuit.

Description

technical field [0001] The invention relates to the technical field of screen display, in particular to an array substrate and a repair method thereof. Background technique [0002] The GOA (Gate Driver On Array, array substrate row drive) circuit is a circuit that realizes the progressive scanning of the panel. Now the commonly used drive circuits of the panel include CMOS GOA circuit and NMOS GOA circuit. The CMOS GOA circuit includes NTFT devices and PTFT devices, while NMOS Only NTFT devices are included in the GOA circuit. The commonly used GOA circuits now mainly include Latch circuits, NAND circuits and Buffer circuits. like figure 1 As shown, it is a schematic diagram of the connection relationship of the existing 4-stage GOA circuit on the panel. The GOA circuits on the same side are cascaded through the connection of the Qn signal, and each stage of the GOA circuit drives a gate (Gate) line. If the NAND circuit and Buffer circuit of the GOA circuit are damaged d...

AI Technical Summary

Problems solved by technology

If the NAND circuit and Buffer circuit of the GOA circuit are damaged due to the manufacturing process or other external factors, the GOA circuit at this level cannot work normally, the gate cannot be opened, and the pixels in this row of the display area (Active Area, AA) will not work normally. While other pixels in the display area can work normally, in addition, the row of pixels whose gate cannot be turned on normally may also be coupled by other signal lines, causing display disorder, thereby affecting the display effect of the entire panel

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