(1) First analyze this background. By getting the web page material, we know that this page is continuously tiled by a picture.

So we create a new PS document and fill it with purple and black.

(2) Create a new layer and use "Filter-Noise-Add Noise" to adjust the value to get the density of noise in similar graphics.

Then "image-adjustment-decoloration" to get the black and white noise below.

(3) Then create a new layer, draw a vertical line, and follow the rule of "bright, sharp and blank" to cover one line. Then load the black and white noise into the channel as the mask of this layer.

(4) Create a new layer and use "Filter-Render-Fiber" to set the parameters as follows.

Then the generated pattern is rotated 90 degrees horizontally. Then make a copy of this layer, and perform "filter-noise-dust removal and characterization" on the copy, as shown in the figure, and set the parameters.

Finally, the layer mode of these two layers is set to overlay, and the following effects are obtained.

(5) Merge all the layers so far and name them "Merge" (remember to make a backup). Create a new layer. Use the previous method to make the fiber effect in the horizontal direction.

Then use "Image-Adjust-Level" to deepen the black and highlight the white.

Load the white part of this picture as the selection, and then switch to the "merge" layer for Gaussian blur, with a value of 2. From the enlarged detail on the right, we can see that some areas are blurred.

(6) Then, do some effect processing: add noise and adjust contrast and saturation. Obtain the following final results

(7) Set this picture as PS pattern, create a new wallpaper with the size of 1280x800, and fill this pattern.