Researchers have developed an innovative display that shows information through clothes and other fabrics. The new technology, called PocketView, uses LED lights to display basic information. It can function as a standalone piece of technology or could be incorporated into existing or next-generation smart devices.

The team created prototypes that mimic smartphones, pens, key fobs, and other shapes and sizes. The idea is not to show all the information that one would normally see on a smartphone display. Rather, these are displays that show minimal information.

Because the display devices can take various shapes and sizes, they have the versatility to be worn and used in any piece of clothing that has a pocket. Another key point of the new display technology is that it is relatively inexpensive and could easily and quickly be rolled out on a large scale. The prototypes are also Bluetooth-enabled, meaning that they sync with existing devices.

Although currently working with standalone prototypes, the researchers believe the next generation of these LED displays could easily be incorporated into existing devices. And whereas other research in wearable displays focuses on creating new high-tech fabrics, the utility of PocketView means that it works with clothes people already have.

For more information, contact Chris Wilson-Smith at This email address is being protected from spambots. You need JavaScript enabled to view it.; 519-888-4451.



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Tech Briefs Magazine

This article first appeared in the February, 2022 issue of Tech Briefs Magazine (Vol. 46 No. 2).

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Transcript

00:00:00 we explore the idea of viewing information  through the fabric of a pocket using low   resolution bright led matrix displays a concept  we call pocket view this enables viewing things   when a phone is inaccessible like checking  notifications when carrying a shopping bag   following navigation directions when cycling  or tracking fitness stats while running we created multiple functional hardware prototypes   in different form factors each resembles a common  object that people put in their pockets already we also tested how well leds shine  through common clothing fabrics   in a controlled technical experiment the most general prototype resembles a  phone case or a wallet it is completely   self-contained with an led matrix microcontroller  battery and bluetooth to connect to a phone  

00:01:04 the phone sends images to the device it is placed in the pocket to  view information from the phone   as low resolution graphic images with a simple  interaction vocabulary single taps cycle through   different information sources like weather  fitness stats when walking and viewing directions   when notifications arrive they can be dismissed  with a double tap the device can work through a   range of fabrics like thick cotton pants  a polyester jacket and a patterned skirt   it also works in a range of pockets and clothing  like a hoodie pocket the pocket of leggings or a shirt pocket we also created a  prototype resembling a headphone earbud case this smaller form factor fits into smaller  pockets of women's jeans or workout gear we also built an even smaller form factor  resembling a car remote it also features  

00:02:20 a slightly different led size it is placed  inside a pocket to show a welcome message   we also created a pen form factor with  a very simple strip of led even with   this limited display it can provide useful  information like time before the next meeting   we also experimented with a higher resolution led  matrix in the form of a phone case pocket view can   be used in different settings like meetings  it enables subtle viewing of notifications it can show instructions to  perform an exercise routine it can also be used as a public  display to enable social interactions   we also evaluated the general approach in a user  study participants used the led prototype as   well as two other through fabric methods as  baselines one baseline was a standard phone   display with graphic high contrast imagery this  is simple but it only works through some fabrics  

00:03:40 the other bass line was a radical concept using  a switchable diffuser material sewn into a pocket   it is of dubious practicality but it served  as an extreme type of through fabric display   for comparison purposes for additional details  and study results see the accompanying paper