A test by Walgreens of technology that replaced some cooler doors with digital screens that play ads has ended in acrimony. The digital screens’ vendor, Cooler Screens, is suing the pharmacy chain, ...

Walgreens and Cooler Screens are suing each other after the pharmacy chain tried to get out of its contract with the company that installed refrigerator doors that can display digital ads. Arsen ...

A few years ago, shoppers at major grocery and convenience stores started to notice something strange: The doors to the ...

Walgreens' experimental use of ad-ridden refrigerator screens — you know, the digital screens that, between advertisements, digitally show you whether there's any Diet Coke left in the case, as ...