Sticker clock

Looking at the segmented lcd display of clocks, it looks as if they could be shrank to be ultra-thin to be placed on a sticker small enough to only take a corner of a pair of glasses. With such a small size, a tiny photovoltaic panel attached to the bridge of the glasses with the processor would provide sufficient power.

If you've ever played a handheld electronic game from the 80's you will see that the screens use segmented lcds that are see through. Normally there is a plain picture behind in order to provide perspective for the game . My thought is that you should be able to make a clock that can stick on the front of the average pair of glasses/sunglasses. Minimal power and processor requirements, but still be handy to have a clock within your eye line.