According to news on December 4, yesterday, Huawei Technologies Co., Ltd. disclosed a patent for "a display panel packaging structure" with the public number CN215008275U.
Qichacha’s patent summary shows that the application embodiment provides a display panel packaging structure. IT House learned that the display panel packaging structure includes:
The interlayer dielectric layer ILD, and the metal traces provided on the interlayer dielectric layer. The metal traces are determined by etching selection ratio. Multiple different metal layers form a multi-layer structure, and the metal traces extend outward from the effective display area AA of the display panel to the edge of the display panel;
An anode metal layer is provided on the surface of the metal traces. The anode metal layer is used to cover at least one target metal layer of the metal trace to avoid lateral etching of the target metal layer by the anodic etching liquid. Therefore, water and oxygen channels will not be formed in the aluminum-based material, eliminating the possibility of leakage on the outside of the display panel. The water vapor, water and oxygen channel enters the effective display area of ??the display panel, which solves the problem of black spots on the display panel.