A digital display stops someone in their tracks. It captures attention, communicates a message, and creates a moment of interest. But then the moment passes: the customer walks on, the screen cycles to its next piece of content, and the connection ends.
A QR code changes that. It takes the moment of attention a screen creates and extends it beyond the physical environment, into the customer's phone, their pocket, their evening. The display earns the glance. The QR code earns the relationship.
Why the Combination Works
Digital signage and QR codes solve each other's limitations. A screen in a shop window or on a café counter reaches people at the moment they're most receptive: when they're already in the environment, already engaged with the brand. But a screen can't follow someone out the door. It can't give them time to consider a purchase, re-watch a product demonstration, or sign up to something when they're back at their desk.
QR codes bridge that gap. A scan takes seconds, requires no typing, and can direct a customer to almost anything: a product page, a loyalty sign-up, a video, a competition, a menu, a booking form. The customer's phone becomes a continuation of the screen they were just looking at, and the experience travels with them for the rest of their day.
This second touchpoint is commercially significant. Many purchase decisions, particularly for higher-consideration products and services, aren't made in the moment of first encounter. They're made later, after reflection, after a quick search, after showing a partner or colleague. A QR code puts your business at the start of that process rather than being forgotten when the customer turns away from the screen.
What to Link To: Making the Destination Worth the Scan
The QR code is only as valuable as what it leads to. A scan that delivers a homepage, a generic social media profile, or a PDF that wasn't designed for mobile viewing is a wasted opportunity - and a frustrating experience that reflects poorly on the brand that created it.
The strongest QR destinations are built for the specific context of the scan. Someone scanning a code on a café menu board while waiting to order is in a very different mindset from someone scanning a code on an exhibition stand who wants to review technical specifications later. The destination should reflect that.
Content that consistently works well as a QR destination:
- A dedicated landing page for the specific promotion or product shown on the screen - not a homepage, but a page built for this exact customer at this exact moment, with a single clear action to take.
- A short product demonstration or brand video - something that rewards the scan with content worth watching, that adds genuine value beyond what the screen itself was able to show.
- A loyalty programme or email sign-up - the QR code on a till-side display or counter screen is the lowest-friction point at which to acquire a customer's contact details, far more effective than asking staff to solicit sign-ups verbally during busy periods.
- A competition or exclusive offer - time-limited offers accessed only via QR scan create urgency and give the customer a concrete reason to scan now rather than intend to scan later and forget.
- A feedback form - particularly useful in hospitality, healthcare, and service environments where gathering real-time customer opinion is commercially valuable and traditionally difficult to operationalise without staff involvement.
The Data Advantage
Standard QR codes (the free, generated-once type) tell you nothing beyond whether a code scanned correctly. A tracked QR code tells you considerably more: how many times it was scanned, at what times of day, from which location, on what device, and what the user did after the scan.
This data transforms QR codes from a passive link into an active measurement tool for your digital signage. If a screen running three different promotions on rotation has a QR code linked to each, the scan data tells you which promotion generated the most downstream engagement - information that directly informs what to show on the screen next month. Platforms designed specifically for tracked QR codes (Flowcode is one worth exploring for its analytics depth and customisation options) allow codes to be updated without reprinting or changing the display - meaning the destination can change while the code on the screen stays the same. A code that linked to a summer promotion can be redirected to an autumn campaign without touching the screen it appears on.
Practical Considerations: Making Scans Actually Happen
The most common reason QR codes on digital displays fail to generate scans isn't a lack of customer interest, it's poor implementation. A few principles make a significant difference:
Size matters more than most people expect. A QR code needs to be large enough to scan from the distance at which a customer will typically be standing. As a starting point, a code viewed from one metre needs to be at least 10cm square on screen. A code on a window display viewed from the pavement needs to be considerably larger. Test the scan distance with your own phone before the display goes live.
The code needs to hold still. A QR code embedded in rotating or animated content that cycles away before a customer can open their camera is worse than no QR code at all. Either give the code its own static screen slot with enough dwell time to scan, or keep it as a persistent element in the corner of otherwise dynamic content.
Give people a reason to scan. A QR code with no context — no label, no incentive, no indication of what scanning it will deliver — is rarely scanned by anyone who isn't already curious enough to take a risk on what might appear. "Scan for 10% off your next visit" generates more scans than an unlabelled code regardless of how well designed the code itself is.
The destination must be mobile-optimised. This sounds obvious and is regularly ignored. A QR code by definition is scanned on a phone. If the destination page isn't designed for a phone screen, the experience ends at the first scroll.
Beyond the Screen: QR Codes Across Your Physical Environment
Once the principle of tracked QR codes is established, it extends naturally beyond digital displays. The same code (or the same tracking infrastructure) can appear on printed materials, packaging, receipts, and environmental signage, creating a joined-up picture of where customers are engaging and from which touchpoints they're converting.
A customer who scans a window display code, then later scans a code on a printed receipt, then makes a purchase through the linked landing page, represents a trackable customer journey that spans physical and digital environments. That kind of attribution (understanding which touchpoints actually influenced the purchase) is rare in physical retail and genuinely valuable for making future content and placement decisions.
FAQ
Do QR codes on digital displays actually get scanned?
Yes — when implemented correctly. The most important factors are code size relative to scanning distance, sufficient dwell time on screen for the code to be visible while a customer opens their camera, a clear label explaining what the scan delivers, and a mobile-optimised destination worth arriving at. QR codes that fail to generate scans have almost always failed on one or more of these practical points rather than due to customer unwillingness to engage.
Can I track how many people scan my QR code?
With a standard QR code, no — you can only see activity on the destination page through standard web analytics. With a tracked QR code platform (such as Flowcode or equivalent), you can see scan counts, times, locations, and device types directly, without relying on destination page analytics. For commercial applications where measurement matters, a tracked code is worth the additional step.
Can the QR code destination be changed after the display is live?
With a dynamic QR code, yes. Unlike static QR codes where the destination is fixed at the point of generation, a dynamic code stores a redirect URL that can be changed at any time without altering the code itself. This means a seasonal promotion can end and redirect to a new campaign without any change to the display showing the code.
What's the smallest a QR code can be on a digital display and still be scannable?
As a general guideline, a QR code should be at least 10 times the intended scanning distance in millimetres — so a code scanned from one metre away should be at minimum 10cm square on screen. For window displays viewed from street distance (typically two to three metres), the code should be proportionally larger. Always test with multiple devices before going live, as scanning performance varies between phone cameras and operating systems.
