Digital Signage Comes of Age

Wrigley Field is the second oldest ball park in the major leagues (Fenway is 2 years Older). The next closest in age is about 50 years its junior. Although the electric light was invented over 110 years earlier, Wrigley did not get lights, for the purpose of playing night games, until 1988. Wrigley still has its old scoreboard where the operator sits inside it with binoculars and has to physically change the numbers with each ball and strike.

This bastion of high technology early adoption is now contemplating adding a 6K square foot Jumbotron. The cost of not having one with its opportunities for advertising and crowd engagement is too pressing.

A Flat Panel Camera

A smartphone is more than just a phone. The platform has grown by accreting the functions of other platforms: watch, calculator, MP3 Player, PDA, and now even the laptop. This has been done in part by miniaturizing the components but also in large part by consolidating functions within components. Although display technology continues to produce visually better display one of the biggest advancements in display has been the consolidation of the keyboard and mouse function within the display. In looking to future development in display technology, much of the focus is rightly on better displays; visually better and flexible OLEDs. However, much is to be gained by considering further functional accretion into the display. Specifically, as touch technology moves to optical (non-touch) versions touch panels take on the capability of flatbed scanners. Perhaps they could also take on the role of camera.

Current cell phone cameras are limited by the size of their optics. Obviously this limits light input (low light capability) but it also means that they are diffraction limited in terms of resolution. Though phones may boast resolutions of 10 megapixels or more in their CMOS sensor, the optical resolution may be much smaller than this, as small as 2 megapixels. Flat panel cameras currently exist. They work by using folded optics to break up and compress the optical path. This is a workable but inelegant and is not a technique that could be integrated into the display. A solution involving synthetic aperture imaging could conceivably be integrated into the display and would give resolutions much higher than the human eye. Current tablets are much thinner than just the lid of laptops from not so long ago and have every bit of the functionality. Increasingly, the display is the device. Ultimately, this may be literally true.

"Minority Report" and the Hunt for the Boston Marathon Bomber

Clearchannel is, rightly, touting their role in dealing with the crisis. In the movie, "Minority Report" the entire town is looking for Tom Cruise using its ubiquitous digital signage. In banks, the screens showing the feed from the security cameras are not referred to or counted as digital signage. However combine the two and you may have start to finish video monitoring of the next race with both the contest and the crowd being widely shown up and down the rout. Image from "Digital Signage Today"

In addition to fixing the highway system so that it connects to the airport logically, the "Big Dig" left Boston with an all-new data infrastructure. It would be the ideal place to implement ubiquitous digital signage.

Hermeticity

Apple will reportedly pay $53 million to settle a class action lawsuit concerning wet iPhones. The Apple warranty does not cover dropping the phone in the toilet... which seems to be a common occurrence, so Apple placed a Liquid Contact Indicator (LCI) on the phone to determine which phones had been submerged. However, it seems the LCI also reacts to humidity. The settlement begs the question whether humidity can disable a phone as well and whether folks in Louisiana and Central Florida can routinely expect shorter life from their devices. There are tried and true remedies to this type of problem.

As discussed in another post, CRTs routinely lasted 20 years or more. They had a few things going for them that mobile electronics did not have. They maintained an internal vacuum, they were built from two pieces of completely hermetic glass, the glass was joined together by an equally hermetic frit seal, the inside was “gettered” to scavenge up any stray oxygen and, the power and data conduits to the tube were hermetic glass-to-metal seals. All of this was done very cheaply and the tubes were physically robust. In CRT manufacturing plants the tubes were occasionally dropped. Not only would a well-made tube not necessarily break, they would sometimes bounce. Made with non-strengthened glass, the combination of the Implosion band and the vacuum imparted sufficient surface compression that the tubes were able to survive indefinitely in most homes where their treatment was not always as gentle as one would want for a big glass bottle.

Many of these same solutions could be applied to smartphones and tablet. It would involve some re-thinking of the I/O but is certainly doable. The result would be not only a longer lived device, one that is susceptible to neither humidity or to actual submersion, but one that is physically more robust as well.