They will run behind both goals and along the Revell Ward (Riverside) Stand touchline.
That provides coverage of the three sides of the stadium facing the television cameras, boosting advertising opportunities.
Town commercial director Sean Jarvis said: “We are delighted to be installing the LED perimeter advertising system.
“This is a significant move for the club.
“Digital boards are used throughout the Premier League and increasingly at Championship level.
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“It is important commercially that we continue to move forward and this is the next step within that process.
“Our advertising department have designed some fantastic packages for businesses to appear on the system.
“By going on the digital boards, you can really bring your brand to life.”