| 摘要 |
A display substrate, a preparation method therefor, and a transparent display device. The display substrate comprises: a substrate (1); multiple pixel regions, each pixel region comprising multiple sub-pixel regions; and a first metal layer (3), a passivation layer (5) and a second metal layer (4) that are sequentially disposed on the substrate (1) and that are located in the sub-pixel regions. The first metal layer (3) and the second metal layer (4) are transflective metal layers, and the thicknesses of the passivation layer located in the multiple sub-pixel regions of the same pixel region are different. The first metal layer (3), the passivation layer (5) and the second metal layer (4) form a Fabry-Perot cavity, and the Fabry-Perot cavity allows light with different wavelengths to pass through according to different thicknesses of the passivation layer. |
