Screen zones: the window and the interior have different jobs
Season 1, Episode 6 of the retail screen field guide. One playlist on every screen fails somewhere. Here is how to give the window and the interior their own jobs without splitting into two brands.
It is noon on a shopping street. A sportswear brand has just launched its season film, and the same 30-second edit is playing on every screen it owns: in the window, on the wall behind the till, above the table of running kit.
Outside, the film opens on a dark, slow shot of runners at dawn. The sun is on the glass. The dark frames turn grey, the reflection of the street sits on top of them, and the line of copy that arrives at second 22 is set at the size of a caption. Nobody walking past waits 22 seconds. The window is a bright rectangle that says nothing.
Inside, the same film is too much. It cuts every two seconds above a table of folded shirts, in colors that fight the shirts. A customer picks up a jacket and looks away from the screen to see it properly. By the afternoon a member of staff has turned the brightness down, and in our experience it will still be playing the same edit next spring.
Same file, two failures. Neither is a failure of the film. The zones are different.
The principle: a zone is behavior plus physics
Episode 2 said every screen needs a job. Episode 3 said people give a screen a few seconds at most. Episode 5 turned a brand book into motion rules so every screen behaves like the same brand. This episode adds the variable all three depend on: where the screen is.
A zone is defined by three things:
- How people move past it. Walking and scanning, browsing, waiting, paying.
- What the light and distance do to it. Daylight and glare, viewing distance, viewing angle.
- What it competes with. The street, the product on the shelf, other signs, other people.
Change any of these and the same content performs differently. The biggest split in almost every store is the one this episode is about: the glass between the street and the shop floor. On one side the screen is read from a distance, in daylight, by people who have not decided to come in. On the other it is read at arm’s length, under store lighting, by people who are already looking at the product.
One brand system, two jobs. Episode 5 gave you the system. Zones decide the job.
The window: one glance, in daylight
The window is the hardest screen in retail. It fights the sun, its own reflection, the distance to the pavement and the speed of people walking. Its job is short: say who you are, say what category you are in, and at most carry one highlight. It is a handshake from the street.
The three window failures we see most often in real stores are all versions of the opening scene: a campaign film or social edit dropped into the window unchanged; dark, moody content that looks good at night and disappears at noon; and too much text, with prices and fine print on a screen read from five metres away by someone walking.
The rules that fix them:
1. Design for noon. A standard indoor display runs at roughly 250 to 700 nits. Window-facing displays are specified far higher: one supplier recommends 2,500 to 3,000 nits for bright windows out of direct sun, and 5,000 or more in direct sunlight, and current window models from the big panel makers ship at 2,500 to 4,000 nits with light sensors that dim them as the day fades. Brightness only buys you part of it. The content has to hold contrast on its own: light grounds or saturated fields, heavy type, no detail that lives in the shadows. If it only works after sunset, it works half the day.
2. Land in one glance. Episode 3’s five-second rule is generous for a window. Plan for one to two seconds. In an eye-tracking study of people walking through a building, the average look at a display lasted about a third of a second. The anchor line is on screen from the first frame, never revealed at the end of a setup.
3. Size type for the pavement. Sign makers use a rule of thumb: every inch of letter height gives about ten feet of readable distance, and the distance where the type has real impact is about a third of that. In metric, roughly one centimetre of letter height per metre to be readable, two and a half to three centimetres per metre to land. A window read from six metres wants an anchor line around 15 to 17 centimetres tall. On your laptop that looks absurd. On the street it looks right.
4. Cut the setup. Cinematic intros are wasted frames on a window. Lead with the anchor, hold it, swap, hold the next.
5. Rhythm, not speed. Fast cuts look like noise through a reflection. Stable compositions and a repeatable beat read better than constant movement.
What works in a window: statement loops built from an anchor line over a brand texture, the brand’s own motif moving at a steady beat, one offer at a time if there is an offer at all. What fails: repurposed social edits, product grids, small captions, anything that needs sound, anything that makes the viewer wait for a reveal.
The interior: next to the product
Inside, the screen competes with the most important thing in the store, which is the product. People are close, they are browsing, they are already making decisions, and the visual noise of the shelves is already high. The interior screen’s job is mood first, then guidance, then a gentle push toward a product. Done well, it becomes part of the architecture. Done badly, it is a television in a shop.
Owners and staff tell us the same three things about interior screens: they are too loud and too flashy, they show the wrong thing for the spot they hang in, and they never change. We regularly walk into stores where the same visual has been running for months, sometimes for more than a year.
The rules that fix them:
1. Slow down. Interior screens run at the calmest tempo that still feels alive. Calm pacing reads as quality; constant movement reads as a discount.
2. Let the product lead. Motion here is atmosphere. The screen sets the color and the mood of the space; the product carries the story.
3. Say less. One idea per moment, short lines, a clear hierarchy. Most of the time the interior screen does not need words at all.
4. Match what is next to it. A screen above the knitwear shows knitwear, or nothing product-specific. A screen above sneakers does not run skincare. It sounds obvious and it is broken in most stores we walk into. The largest field study so far, 237 in-store signage campaigns and about 30 million shoppers, found screens raised the chance of buying the featured product by 8.1 percent, with bigger effects when the screen stood near the product.
5. Do not fight the shelf. If the wall is full of red packaging, a red loop behind it turns both into noise. Harmonize with the product’s colors or step back from them.
6. Give it a shelf life. An interior loop that runs unchanged for a year stops being seen, and the staff who see it eight hours a day start to resent it. Set a renewal rhythm per zone: the ambient layer changes with the season, the product layer with the range. Code-generated loops make this cheap, because a new version is a new seed or a new palette, not a new shoot.
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What works inside: ambient loops in the brand’s own grammar, small category labels, product highlights that behave like signage, a seasonal texture that ties the floor together. What fails: window-style attention grabbing, promotions on every screen, layouts that change constantly, and high-contrast flicker that the staff end up switching off.
The mechanism: one system, a content mix per zone
The fear behind “one playlist everywhere” is real: zones mean versions, and versions mean work. The answer is to keep the system and change the mix.
Think of everything a screen can show as three layers:
- Ambient. Mood, identity, texture. The always-on layer, built from the brand’s motion grammar.
- Message. Short, legible statements: who we are, what is here, where to go.
- Product. Highlights, offers, campaigns. The variable layer.
Every zone runs all three, in different proportions. These are starting ratios, not laws:
- Window. Ambient 20 to 40 percent, message 60 to 80, product 0 to 20. Identity and clarity first.
- Entrance. Ambient 40 to 60, message 40 to 60, product 0 to 10. A welcome, not a pitch.
- Interior product zones. Ambient 60 to 80, message 10 to 30, product 10 to 30. Ambient wins; product appears now and then, calmly.
- Checkout. Ambient 20 to 40, message 60 to 80, product 0 to 20. Reassurance over selling.
Corners and queues get their own episodes; the deliverable below covers them too.
Inside one brand system, the zone changes four things: tempo, type scale, message density and the mix. It never changes the typography, the color behavior or the motifs from Episode 5. Built as templates where only those variables move, a zone version is an export. Nobody redesigns anything.
Seeing it: a street sign, and one brand in two zones
A note on proof, as in every episode. We do not have audience data and we do not pretend to. We have production facts from work we build and illustrations you can judge with your own eyes.
The street side first. One of the products we build is a library of animations for pharmacy cross signs: the green cross that hangs over the pavement outside a pharmacy. The ones we design for are 40 by 40 diodes, each diode on or off. It is the window problem at its most extreme, and it taught us the window rules the hard way. On a panel like that, a brightness animation is invisible: a diode is lit or it is not. A moving field, the kind of flowing motion that looks good on a phone, destroys the shape, because there are not enough diodes to hold a shape and a motion at the same time. The only change a passer-by can read is a change in which diodes are lit. So every loop does what rule 4 says: it holds a legible emblem, swaps to the next, and holds again. Each loop ships twice, once at the true diode count for the sign’s controller and once as a simulation for the shop page, because what reads on a phone and what reads on the street are different files.
The same library taught us a second lesson, about formats. Our rectangular designs worked on standard screens, but on a 1536 by 256 ribbon and a 720 by 1600 totem they turned into one small mark in a big empty panel. We hold those two formats back until each has a composition of its own. A format is part of the zone.
Now the brand side. Below is RUNE, a fictional running label we built for this episode, in its window and on an interior wall. Same wordmark, same palette, same acid-green accent. The window holds big anchor lines and swaps them on a beat over an op-art spiral that reads from the pavement. The interior screen is mostly ambient: a slow cobalt glow with out-of-focus city light, a small category label, and one product moment per loop. Under each screen, a bar shows its content mix as it plays.
The field test
Before you approve a zone, test it where it lives.
Window. Look at it at noon and after dark. Look at it from the pavement, at the distance people actually walk past. Look for your own reflection on the glass. Then ask one question: does the anchor land in one or two seconds?
Interior. Stand in the aisle next to it for 60 seconds. Does it fight the product or support it? Then ask the staff: is it annoying after an hour? When did it last change?
If a screen fails these tests, the content is rarely the problem. The zone is.
The deliverable: your Zone Map
This episode’s sheet is the Zone Map. One row per screen: where it is, what zone it belongs to, how far away and how bright the light around it is, its one primary job, its content mix, and the constraints that follow, from maximum words to minimum type size to how often it renews. Fill it once for a store and every brief after that starts from the right place.
The blank sheet is below. Save it and fill it in. If you want it filled for your store, start a brief at ledbangers.com and we will walk the zones with you.
One thing to keep
The window and the interior are different rooms: give each screen the job its zone asks for, and keep the brand system the same across both.
Next episode
Episode 7, corner screens: why a screen on a corner is seen twice, from two paths and two angles, and how to design content that survives the seam.
If you want the field guide as it ships, plus the deliverable from every episode, follow LEDbangers. If your window and your shop floor are running the same playlist, start a brief at ledbangers.com.
Sources: brightness ranges from Fugo and Craneworks; current window models, Samsung OHF and LG 75XS4G; letter height and distance from Signs NY; glance length while walking, Dalton et al., CHI 2015; signage near the product, Herhausen, de Jong and Grewal, Journal of Marketing 90(3), 2026.
