Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel comprises a substrate, a blocking dam, a first source and drain electrode layer and a second source and drain electrode layer; the substrate comprises a display region, a non-display region surrounding the display region, and a binding region surrounding a part of the non-display region; the blocking dam is arranged around the non-display region; the first source and drain electrode layer and the second source and drain electrode layer are sequentially stacked on the substrate; the first source and drain electrode layer and the second source and drain electrode layer sequentially penetrate through the blocking dam; in an area, close to the binding area, of the non-display region, the first source and drain electrode layer comprises a first part and a second part which are arranged at an intervals; the second source and drain electrode layer is of a whole-layer structure; the second source and drain electrodelayer is electrically connected with the second part to form a low-potential wire; and the first part forms a high-potential wire. Poor performance caused by the corrosion of the side surfaces of thesource and drain electrode layers can be avoided, and the yield of the display panel is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] In the field of display technology, compared with Liquid Crystal Display (LCD), Organic Light Emitting Diode (OLED) has the advantages of self-illumination, low energy consumption, low production cost, wide viewing angle, high contrast ratio, With the advantages of fast response, more realistic color display, and easier thinning and flexibility, it is widely used in display devices such as vehicles, mobile phones, tablets, and computers. [0003] The mainstream driving method of OLED is current drive, and the working current is transmitted from the lower frame (frame area) of the display panel through the source / drain (SD), because SD itself has a certain resistance, and there is a resistance drop in signal transmission ( IRDrop) phenomenon, eventually leading to uneven brightness of the display panel, ...

AI Technical Summary

Problems solved by technology

However, in the process of forming the pattern of the anode layer on the pattern of the uppermost source-drain electrode layer, the side edges of the uppermost layer of source-drain electrode layer are easily corroded by the wet etching solution. During Vapor Deposition (CVD), an abnormal state will be formed, resulting in package failure, and then causing water and oxygen from the outside to easily enter the display area along the boundary of the source-drain electrode layer, resulting in defective black spots, thereby reducing the yield of the display panel.

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