While pointing something out on a work colleague’s laptop, I often like to poke the screen with my finger. Sometimes the colleague gives me a strange look, particularly if he is of a more nerdy constitution. Is it wrong to touch a laptop screen?
Quite the contrary, at least for a conventional LCD (liquid crystal display).
To cut a rather long story short, LCDs are made from thin sheets of glass layered over an electrostatic jelly. Circuits connect the jelly to a backlight, and thence to your keyboard and trackball: type something or massage your ball, and words and shapes appear on the jelly.
Magic.
Now while this jelly is a delectable thing (”Great for robots with dentures!” as one tech wag once quipped), it was originally designed for calculator and digital watch displays, and actually struggles mightily when presenting all the crap that appears on our computers these days. Update your Facebook status too frequently or surf too much porn, and your jelly can develop a case of the “worms”, a gout-like disorder which leads to screen-warping and eventually cracking. (Most desktop LCDs, while theoretically prone to the same issues, bypass them by virtue of their substantially thicker jellies.)
For jellied laptop LCDs, poking the screen is a good thing.
Greasy fingerprints aside (a quick spray of sulphuric acid works wonders), poking does an excellent job of flushing the “worms”, leveraging a process not entirely removed from the poaching of rogue fruit chunks in human-consumable editions. If your colleagues have laptop screens of this nature, I encourage you to poke them (the screens) at every opportunity. (And if you’re “that kind of person”, go ahead and intrude upon the colleagues themselves; the worst you’ll get is a slap, and you may well end up in bed with someone.)
There is, however, a new type of display, designed to self-correct the insidious “worms”, and if a colleague’s laptop owns one of these, it is imperative that you not poke it.
This new technology is called OLED, or “organic light-emitting diode”. While not yet that common in PC laptops, OLEDs are now used in most Apple laptops. If your colleague has a recent vintage Mac lappy, there’s a good change it uses an OLED.
OLEDs, as you’ve probably already guessed from the name, depart from conventional LCDs by replacing the jelly with a living, seaweed-type substance, combined with what can only be described as an ancient form of mollusc, the whole shebang suspended in a very weak saline solution, gently spiced with a sausage-based emollient. When you type or roll on an OLED laptop, the seaweed gently sways in the solution, exciting the mollusc, which then ejaculates words and shapes onto the screen. While the ejaculation occurs at a rapid-fire pace (the typical OLED display has a 0.7ms response time), the swaying seaweed provides a buffer of sorts, controlling the “worms” for even the most fevered Facebookers and pornmeisters.
Touching such a screen is a very bad idea because it over-excites the mollusc, which in turn over-ejaculates. While this is fine in the short-term, actually increasing pixel density and colour dispersion, over time the seaweed buffer breaks down, greatly increasing the likelihood of ejaculate-powered destruction.
I see… And how I can be sure whether a colleague is using an LCD or OLED?
Simply sniff three times in the immediate vicinity; OLEDs should smell of the sea (with the very slightest hint of cherry blossom).
If sniffing should get you strange looks as well, simply make a joke about “night-time activities” and, if appropriate, commence your intrusion.












