Flip-dot Display Is An Advertising Experience We Can Get Behind

This huge and mesmerizing interactive display is just a big piece of advertising. It is a flip-dot display. Each pixel is a mechanical disk, white on one side and black on the other. The team over at BreakfastNY hacked the display modules and wrote their own software so that it can be refreshed with lighting quickness. To the left you can see the high contrast text, but on the right it’s showing the camera-based interactivity. A few seconds later this gentleman sweeps his arm to the side and all the pixels scatter as if blown away by a forceful wind. You might as well just skip down to the video after the break right now.

The display is an advertisement for a new show on the TNT network called Perception. We’ve got to say, if you’re going to advertise this is the way to do it. Make something cool, then share the details. We get to enjoy the clickity-clack of all those dots flipping into place and they got us to at least recognize the network and say the name of the show. Everyone wins.

[Thanks Itamar via Engadget]

24 thoughts on “Flip-dot Display Is An Advertising Experience We Can Get Behind

  1. That’s pretty amazing, if only for the sheer scale – it’s a shame they don’t provide more details on how they engineered the architecture to do such fast animations, and who they sourced the modules from. Not many companies make those boards anymore…in fact, they’re virtually impossible to find, especially for sale. About the only ones I’ve ever seen have been old bus displays that pop up on ebay once in a blue moon.

      1. Updated with an email from the company I linked:

        Thank you for your interest. A board 14×28/0.53″ is listed at 450 EUR. This
        includes display board and driver electronics with RS485 interface. You need
        24V power supply.
        There are different options for controllers that are resulting in different
        driving speed.

        We can also supply individual strips at 4 EUR/each (7 dots).

        These are list prices, excl. shipping or taxes.

        Each project is however different and I would prefer to speak directly with
        interested people/companies to offer them the most suitable solutions.

        Marcin KRYSIŃSKI

        Alfa-Zeta Sp. z o.o.
        ul. Starorudzka 6a
        93-418 Łódź, POLAND
        tel. +48 42 6891200
        fax +48 42 6891202

    1. Looks like a regular camera, or one every few feet of panel. Subtract the incoming image from the background, apply an edge detect filter and scale and convert to 2 color.

      Very neat effect though with the text falling away.

      1. Color based background subtraction isn’t trivial. I think they are thresholding a depth image to remove the background and thresholding a color image to produce the binary image.

      2. We did it before with an FPGA. It wasn’t really difficult: we converted the image to greyscale before subtracting from the buffered image. The buffer stored the mean greyscale image from the previous 60 or so frames, so if you stood still in front of the camera you faded into the background.

    1. We may be able to fix it ourselves, but we might spend more time fixing than viewing the display. With transparent color disks illuminated from behind,color could be achieve, but poorly.

      1. Exactly. Mechanical dots are cool, but noone wants 2-color displays, especially not on the larger displays. I work for a company that makes the giant LED displays, and we actually did make the mechanical dot displays – decades ago. The market simply doesn’t want those anymore.

  2. These are still used in some highway information signs where I live. Always wondered how they worked, but didn’t know the name of the tech to look up. Thanks to this, now I do.

    Here’s the Wikipedia article in case anyone is curious to see further details.

  3. Great video! Very cool software.
    A much bigger version is in Thailand (True Corp), 13m x 6m high. Much bigger dots. Made by an Australian company (AD Engineering). Similar in concept with people moving across the screen, but software not as good the one above.

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