Digital signage
in United Kingdom

In the second half of the afternoon the high street changes: people are heading home, the light has gone, and a shop with a lit window is the only thing on the street that is legible. Three consequences that follow from that and cost nothing:

• Winter content is a different content. What reads well at midday in July —fine text, pale colours, a photograph— disappears at five in December. Strong contrast and few words is not a style preference in that stretch, it is the difference between legible and decorative.
• Brightness should come down, not up. The instinct is the opposite. A screen set for daylight is uncomfortable against a dark street and reads as a glare rather than a message. Most televisions have a scheduled brightness setting and almost nobody uses it.
• The screen is worth leaving on after closing. The street keeps moving for hours after the shutters come down, and opening times, the phone number and what is on tomorrow do a full evening of work. This is the single cheapest thing on this page and the least done.

The reverse case matters too: in June the same window is in daylight until nine, and a screen set for winter is invisible behind the reflection. Two scheduled versions —one for the light half of the year, one for the dark— cover the whole calendar and are set once.

The test takes one evening: stand across the road at five o'clock in December and read your own window. Whatever you cannot read from there, nobody walking past is reading either.

What a neighbourhood is actually short of knowing:

• What is on this week. The market, the fair, the collection, the fun run that closes the road.
• What has changed. Roadworks, a bus stop moved, the surgery's new hours. Small facts that everybody needs and nobody publishes.
• Who is new and who has gone. A neighbouring business opening or closing is genuinely of interest, and mentioning it costs nothing.

The commercial argument for giving away space to information that is not yours is stronger than it sounds: it makes people look at the window habitually. A frontage that is only ever an offer gets read once a month; one that is worth checking gets read on the way past, and the offer is then seen by somebody already looking.

There is a boundary that keeps it working, and it is worth setting early: useful, not editorial. Dates, times and facts travel well; opinions about the council do not, and they cost customers who disagree. The moment it becomes a platform rather than a noticeboard, half the street stops reading it.

Put one genuinely useful local fact on your screen this week that has nothing to do with what you sell. Then watch whether anyone mentions it — that is the cheapest test there is of whether your window is being read at all.