You would advise a client that’s launching a new product line to advertise on the Google Display Network because she can:
use text ads that encourage people to visit her website
reach people who are searching for her products
reach people who are interested in similar products
use text ads that encourage people to call her business
The Google Display Network allows to you connect with customers with a variety of ad formats across the digital universe.It can help you reach people while they’re browsing their favorite websites, showing a friend a YouTube video, checking their Gmail account, or using mobile sites and apps.The Display Network helps you capture someone’s attention earlier in the buying cycle.The Google Display Network is designed to help you find the right audience across millions of websites. It lets you be strategic and put your message in front of potential customers at the right place and the right time.
Read more here: https://support.google.com/adwords/answer/2404190