As I passed the café at my local train station the other day, I noticed a staff member swapping out the paper billboard advertising the latest deals – and I couldn’t help but think, why are we still doing this? Full color, low-power, E Ink digital signage is now here, bringing numerous benefits for any business concerned about saving paper waste while speeding up their ability to update their messaging — while also looking sophisticated and elegant - the display will attract attention just by looking cool!
In our humble opinion, there’s no finer example of color E Ink digital signage than our own Wi-Poster, which we proudly announced earlier this year at NRF 2025 and ISE 2025. Available in a range of sizes ranging from 13in up to 40in, it’s naturally powered by our unique, globally safety-certified, AirCord over-the-air wireless power technology.
You may already be familiar with E Ink as the display technology used in eReaders, but make no mistake, the Wi-Poster is not your Grandma’s Kindle — its Spectra 6 E Ink technology is the real deal, offering beautiful, color-rich images. When you see one in action, you might not even fully appreciate the technology behind it, simply because it’s easy to mistake it for a printed poster - it’s that good.
The Old Way
Up to now, when a business wants to get its message across, it has had to choose between printed posters or an LCD video display. However, both are problematic.
Paper for signage is often discarded shortly after it is used, which is expensive and wasteful. And if you want to change the message, you’ll have to plan for it, place the order, and then…. wait. We’re talking days at best — and then you still have to physically take down the old posters and put up the new ones. Sheesh!
LCD panels are great when you want to show eye-catching video, but for simple messaging, they can be overkill, especially as they are large, heavy, and power-hungry — not something that any business wants with rising energy costs and ESG pressures.
LCDs can also be difficult to read in bright sunlight. The solution to this is to increase the brightness - but watch that power consumption figure go the wrong way!
You also need to get power to that screen, which limits where you can put them. Yes, with planning, they can be placed exactly where they need to be — but that requires remodeling and rewiring, so be prepared to pay for it in terms of time and cost.
A New Path
This is why E Ink digital signage posters are an exciting new option. Color E ink images are rich, engaging, and elegant, and as the frame is relatively light, your business can speedily display the messages you want, all without worrying about wasting paper or energy.
You can also change the image and message as often as you like. It might take a few seconds, but it’s still an order of magnitude easier than manually swapping paper posters. Furthermore, as E Ink is reflective rather than emissive, they are as easy to read as paper, even in bright sunlight, so you don’t have to worry about placement.
Wireless Charging: Ultimate Flexibility
So you’re sold on color E Ink posters. But — there is still an issue with most on the market — and that’s how they are powered — batteries. Most E Ink posters use built-in rechargeable Lithium-Ion batteries, and while these will last a long time without a recharge, at some point they will need charging, and the more often you update them, the sooner that will be.
Wouldn’t it be great if you could change the image as often as needed, and never, ever, have to think about recharging them?
Enter the Wi-Poster from Wi-Charge. Thanks to the magic of our AirCord technology, it’s powered entirely wirelessly, via electricity beamed over the air, making it the ultimate E Ink digital signage display, unlocking true flexibility for a wide range of industries.
The Ultimate Fashion Statement
If you head down to the local high street shop to get some clothes, E Ink displays will be the perfect way to present the latest offers and trends in store, all in color. The company can even show its Instagram page on the display, optimized with cool, colourful imagery, with a QR code at the bottom to encourage customers to sign up right away. And as the Wi-Poster is powered over the air by wireless electricity, it can be placed anywhere in the store, without having to move anything around.
Displays You Can Bank On
Next, you head to the high street to get cash for your upcoming holiday. You are about to go to your bank but you notice another store smartly using color E Ink signage to show the daily interest rates on all the major currencies, and the rate is better, so you head inside that one instead.
Next, you head to the post office to send a package, which you don’t do very often. Inside, Wi-Poster E ink panels are on stands to indicate which line is for regular post and one for returns, and each one with a different color. On the walls are other E Ink displays showing the latest offers, including an excellent e-sim deal that will be perfect for your upcoming holiday.
Directions Made Easy
Soon, you’re off on holiday, but when you land, the airport is being remodeled and is somewhat chaotic. Fortunately, they’ve put up some signage to direct people to the lines in the temporary layout with no concerns about getting power to them as the work is being done, and the transmitters in the ceiling are still in play.
A Wi-Poster is also there to show you which direction to head to collect your luggage. Once you’ve got your bag, there are another two panels in the customs area: one in red for the “something to declare” line and a green one for everyone else.
The Digital Signage Revolution
These are just some of the ways the Wi-Poster could be used to revolutionize digital signage. For whatever type of business, whether it’s corporate, retail, banking, or travel, wirelessly-powered E Ink displays mean signage can now be dynamic, both in terms of placement and content. They offer the freedom to put colorful, on-brand messages directly in front of their intended audience, with no need for cable-demanding, energy-hungry, and heavy LCD displays.
Whether from a layout, maintenance, or sustainable angle, color E ink digital signage makes sense, especially when it’s wirelessly powered over the air. So, to get started on your next-gen digital signage journey, get in touch now.
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