Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and improves the connection stability of a cathode and an auxiliary conductivepart on the premise of ensuring a high aperture ratio. The display panel comprises a substrate which is provided with an array layer; an anode which is located at one side, back on to the substrate,of the array layer; a pixel definition layer which is located at the side, back on to the substrate, of the anode, wherein the pixel definition layer comprises a second opening and a first opening exposing the anode; a first island part which is located at the side, back on to the substrate, of the pixel definition layer, wherein the first island part comprises a via hole, the via hole is corresponding to the second opening, and the via hole penetrates through the first island part in a direction perpendicular to the substrate; an organic light-emitting layer which is located at one side, backon to the substrate, of the anode and is limited by the first opening; a cathode which is located at one side, back on to the substrate, of the organic light-emitting layer, the pixel definition layer and the first island part; an auxiliary conductive part which is located between the pixel defining layer and the substrate. The cathode is electrically connected with the auxiliary conductive partthrough the via hole and the second opening.

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 order to realize image display, a plurality of light-emitting elements are arranged in the display panel, and the light-emitting elements include an anode, an organic light-emitting layer and a cathode. At present, the cathode in the display panel is mostly vapor-deposited on the entire surface of a transparent conductive material, and the thickness is relatively thin and the resistance is relatively large. In this way, when a negative power signal flows through the cathode, a relatively large voltage drop will be generated, thereby affecting display uniformity. [0003] In order to overcome the above problems, in the prior art, some auxiliary conductive parts are usually added in the display panel, and the total resistance of the cathode is reduced by electrically connecting the cathode to the a...

AI Technical Summary

Problems solved by technology

However, based on the current technology, the connection stability between the cathode and the auxiliary conductive part is poor, and thus the reduction of the total resistance of the cathode cannot be effectively guaranteed.

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