Any way to use frame.time_delta_displayed in a filter?

I'm working with a capture file in which a particular conversation suffers from a periodic interruption. I'd like to be able to use that delay in a display filter, but it just doesn't seem to work when I'm dealing with one conversation among many. I've tried:

tcp.stream eq 12 && frame.time_delta_displayed > 5.0

and

tcp.stream eq 12 && frame.time_delta_displayed == 6.671905000 (from Copy -> as Filter in Details)

but both yield empty results. Now, I can save that conversation to a separate file and then use:

frame.time_delta > 5.0

so my immediate need has been met. Is there any other filter that would select such packets WITHOUT the need to isolate the conversation in a separate file?