The answer is yes. Digital signage, or "smart signage," is just a monitor with some extra hardware and software tailored to business and professional use. The only thing required to use a contemporary digital display as a monitor is a device that can connect to its HDMI connector.

Compared to standard desktop displays, monitors designed for digital signs are often higher in quality, cost more, are heavier, are constructed for 16–24 hours of daily usage, are typically brighter, and have additional input ports. Some even have media players and extras like an Ethernet or serial connection right in the device. For more details about signs products, Contact Iris Signs in Leicester.

Original Source: https://www.quora.com/Can-you-use-a-digital-signage-as-a-monitor/answer/Iris-Signs