Link Thumbnail to Resized Size?

I've selected my image field in the views panel to be displayed in my block.
I've created a 'thumbnail' preset with correct size to be displayed and linked within a grid layout and have gotten them to load the imagefield data properly.

However, I do not see the 'FORMAT' option to have the 'thumbnail' that will be generated turn into a linked to the same image processed by another preset called 'display size'.

Essentially, I want to be able to upload an image file and have the grid automatically be generated with 'thumbnail' preset links that point to the 'display size' preset pictures, which load in a div container via jQuery.

I have the action working (grid, jquery, container load, thumbnail links, etc.) I just cannot find the proper 'FORMAT' selection in Views > Fields > Content: ImageField.

what I was hoping to see in the list was:

FORMAT:
thumbnail image linked to display size image

It's loading the full size image in a fixed size box. I do not mind if someone posts a method of having the image resize upon upload, I don't think (for this site's purpose) that it matters whether the 'display size' pictures are generated on page load, or on image upload. I think uploading to the node and having it resize automatically at that point is a bit better for this site, but again... really a non-issue.

does anyone have any insight on settings? I've tried fiddling with display fields and such, to no avail