No, Police officers in the state of Delaware do not have any knowledge of you having a concealed carry permit.
Whether or not I notify them depends on if I have to go anywhere near it to get my paper work out. If im carrying in my purse, i have both hands on the wheel, tell all my passengers to not say one word, turn the interior light on if its night time, and roll both the drivers and passengers window down... i also dont do a whole lot of looking around. when they approach, i say Sir/Maam, i have a firearm and permit in my purse. thankfully ive only had to do all that shtick once.... The county guy said he appreciated my cooperation and sent me on my way.
On another stop, I had no plans of disclosing that I was carrying (iwb holster). The Trooper who let me out of a ticket for me driving at a just plain jacka$$ speed, unloaded every round into my trunk, removed the slide, and shut my trunk lid. His parting comments were that little girls should stick to dolls and dresses and returned to his car and drove off.
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Moosie