Like the Knowledge Graph, this box appears at the top of search results on the search results page and is meant to give the searcher a brief look at the information available on the web about the topic. The knowledge panel is automatically generated by the search engines and is shown for entities that are included in the knowledge graph.
This tool is designed to display when users search for a business on Google; it can help users get quick information about a business like phone numbers, reviews and location. Much of the information is pulled from sources like Google My Business and Google Maps.