The creation of OLED keyboard

Computerworld reported today that Apple filed a patent application in March 2007 for a keyboard that could display an infinite number of symbols on the key tops. This is made possible using organic light-emitting diodes (OLED) technology. The patent was only made public yesterday by the Patent Office.

Patent 20080001787:
is dubbed Dynamically Controlled Keyboard, outlines a keyboard whose keys would feature numerous OLEDs formed on a glass substrate that would also function as the key top. The OLEDs, perhaps in a 9-by-9 matrix, could be switched on or off, read the patent application, by software to morph the “display” on the faces of the keys.

One of the advantages of OLED keyboard is users do not have to memorize various keyboard layouts for different locales. It’s aim is to enhance user experience and user friendliness. Apple claimed that they will keep the keyboard price low.

As a user I find it hard to imaging how the OLED keyboard will work and how it will enhance user experience without seeing an actual prototype. I wonder if this technology catches on, how quickly will it replace traditional QWERTY keyboards.